US Pat. No. 11,067,881

LIGHT SOURCE SYSTEM AND PROJECTION SYSTEM USING SAME

Appotronics Corporation L...


1. A light source system, comprising:a first light source configured to emit first light;
a light splitting device;
a wavelength conversion device comprising at least a first color light region and a second color light region which are alternately inserted into an outgoing path of the first light according to a timing sequence, wherein the first color light region is configured to generate second light under excitation of the first light and to emit the second light to the light splitting device, and the second color light region is configured to reflect the first light to the light splitting device;
a light guiding device, wherein the light splitting device is configured to guide the first light to the light guiding device and to guide the second light to a light path, the light guiding device is configured to reflect the first light to the light splitting device, and the reflected first light is guided to the light path by the light splitting device; and
a light compensation device configured to compensate the second light and comprising a second light source, wherein the second light source is configured to emit the second light, the second light emitted by the second light source is converged by the light guiding device to the light splitting device which is provided, corresponding to an incident position of the second light emitted from the second light source, with a structure that allows the second light to pass through, and the second light emitted by the second light source transmits through the light splitting device and then is combined with the second light generated by the wavelength conversion device.

US Pat. No. 11,067,880

LIGHT SOURCE UNIT AND PROJECTOR

CASIO COMPUTER CO., LTD, ...


1. A light source unit comprising:an excitation light source configured to emit excitation light;
a luminescent wheel comprising a base material, a fluorescent light emitting zone formed on one surface of the base material and configured to emit fluorescent light having a wavelength in a wavelength range which differs from that of the excitation light and a reflection zone disposed so as to be aligned with the fluorescent light emitting zone on the one side surface of the base material and configured to reflect the excitation light; and
a first divided dichroic mirror comprising a first zone configured to transmit the excitation light but reflect the fluorescent light and a second zone configured to reflect the excitation light and the fluorescent light,
wherein the reflection zone comprises a reflection member containing a metal and formed on a surface or in a cut-away through hole in the base material and a diffuse transmission portion formed on the reflection member, and
wherein the excitation light emitted from the excitation light source matches the first zone and is then incident on the first zone, and the excitation light reflected by the reflection member matches the second zone and is then incident on the second zone.

US Pat. No. 11,067,879

ULTRA-DENSE LED PROJECTOR USING THINNED GALLIUM NITRIDE

Tectus Corporation, Sara...


1. A display device comprising:a backplane die comprising an array of LED driver circuits on a backplane substrate; and
a frontplane structure attached to the backplane die, the frontplane structure comprising a thinned gallium nitride region patterned into individual LED pillars having an active region of width not more than 2 um, wherein the gallium nitride region is thinned to reduce a height of the individual LED pillars as measured from the active region to a top of the gallium nitride region to less than 3 um, wherein the individual LED pillars form at least a 200×200 array of color pixels.

US Pat. No. 11,067,878

LASER PROJECTION DEVICE

HISENSE LASER DISPLAY CO....


1. A laser projection device, comprising:a laser light source, comprising three laser assemblies emitting lasers of different colors; and
a laser light source driving unit, connected to the laser light source, and comprising:a display control circuit, configured to: output, based on three primary color components of an image to be displayed, three pulse width modulation (PWM) signals corresponding to the three laser assemblies, and output three enabling signals corresponding to the three laser assemblies;
power supply driving assemblies, connected to the display control circuit and configured to receive the PWM signals outputted from the display control circuit, wherein the power supply driving assemblies include three power supply driving assemblies connected to the three laser assemblies in a one-to-one correspondence; and
laser driving assemblies, comprising three laser driving assemblies connected to the three power supply driving assemblies in a one-to-one correspondence,

wherein the display control circuit is configured to transmit an enabling signal corresponding to each of the laser assemblies to a corresponding one of the power supply driving assemblies when transmitting a PWM signal corresponding to each of the laser assemblies;
each of the power supply driving assemblies is configured to load a driving voltage to a corresponding one of the laser driving assemblies according to a voltage of a received PWM signal, when a received enabling signal is at an active potential; and
each of the laser driving assemblies is configured to drive a corresponding one of the laser assemblies to emit light according to the driving voltage.

US Pat. No. 11,067,877

STRUCTURED LIGHT PROJECTOR AND ELECTRONIC DEVICE INCLUDING THE SAME

SAMSUNG ELECTRONICS CO., ...


1. A structured light projector comprising:a light source configured to emit light; and
a nanostructure array configured to form a dot pattern based on the light emitted by the light source, the nanostructure array comprising a plurality of super cells, and each of the plurality of super cells comprising a plurality of nanostructures,
wherein each of the plurality of super cells comprises a first sub cell that comprises a plurality of first nanostructures having a first shape distribution and a second sub cell that comprises a plurality of second nanostructures having a second shape distribution, and
wherein the first sub cell and the second sub cell are sub-divided areas of each of the plurality of super cells that are different from each other.

US Pat. No. 11,067,876

PROJECTION DISPLAY DEVICE

FUJIFILM Corporation, To...


1. A projection display device comprising:an imaging element that performs imaging with received light;
a light valve that emits an optical image based on image data; and
an image-forming optical system that projects an optical image according to light emitted from the light valve onto a magnification side imaging surface and forms an image of light incident from a magnification side on the imaging element,
wherein the image-forming optical system comprises a first optical system that comprises at least one lens and is used in common in projection and imaging, and a separation member that separates an optical path from the light valve toward the first optical system from an optical path from the first optical system toward the imaging element, and
in a case where a magnification of a reflection system having a path, along which light from the light valve is reflected by one surface of the lens in the first optical system and reaches the imaging element, is BETn, and a magnification of an entire system having a path, along which light from the light valve is reflected by the magnification side imaging surface and reaches the imaging element, is BET, surfaces satisfying Conditional expression (1) among the surfaces of the lens in the first optical system are set as antireflection target surfaces, and at least one of the antireflection target surfaces comprises an antireflection layer,0?BETn/BET??(1),


US Pat. No. 11,067,875

STEREO CAMERA DEVICE

Hitachi Automotive System...


1. A stereo camera device, comprising:first and second imaging units;
a housing that includes the first and second imaging units;
a substrate that receives signals from the first and second imaging units, and has a linear expansion coefficient different from a linear expansion coefficient of the housing;
a cover that houses the substrate in cooperation with the housing, and has a linear expansion coefficient different from the linear expansion coefficient of the substrate;
a first fixing portion that co-fastens the substrate and the cover to the housing by a first fixing member without an elastic body interposed between the cover and the first fixing member; and
a second fixing portion that co-fastens the substrate and the cover to the housing by a second fixing member with an elastic body interposed between the cover and the second fixing member,
wherein the elastic body is configured to cause elastic deformation or sliding between the substrate and the cover so as to be allowable even though the cover holds a slight displacement from the substrate, and
the first fixing portion is provided at a position closer to a central point of a line segment connecting the first imaging unit and the second imaging unit than the second fixing portion.

US Pat. No. 11,067,874

CAMERA, ACCESSORY APPARATUS, COMMUNICATION CONTROL METHOD, STORAGE MEDIUM, AND CAMERA SYSTEM

CANON KABUSHIKI KAISHA, ...


1. A camera usable while a plurality of accessory apparatuses are connected to the camera, the camera comprising a camera controller configured to control a communication with the plurality of accessory apparatuses using a signal transmission channel used for a signal transmission between the camera and the plurality of accessory apparatuses, and a data communication channel used for a data communication between the camera and the plurality of accessory apparatuses,wherein using the data communication channel, the camera controller is configured to provide a first communication that is a data communication with the plurality of accessory apparatuses and a second communication that is an individual data communication with a specific accessory apparatus among the plurality of accessory apparatuses, and
wherein whenever detecting a signal indicating an ongoing standby of the first communication output to the signal transmission channel from one accessory apparatus that is not authenticated by the camera among the plurality of accessory apparatuses, the camera controller sequentially authenticates each of the plurality of accessory apparatuses by performing an authentication communication with the one accessory apparatus.

US Pat. No. 11,067,873

IMAGE STABILIZATION APPARATUS, LENS APPARATUS AND CAMERA SYSTEM HAVING THE SAME

CANON KABUSHIKI KAISHA, ...


1. An image stabilization apparatus comprising:a fixed member;
a lens;
a movable member configured to hold the lens and capable of moving relative to the fixed member on a plane perpendicular to an optical axis of the lens;
a guide member movable relative to the fixed member on the plane perpendicular to the optical axis and configured to guide the movable member while suppressing the movable member from rotating relative to the fixed member on the plane perpendicular to the optical axis;
a first rolling member held and configured to roll between the fixed member and the guide member;
a second rolling member held and configured to roll between the guide member and the movable member; and
a third rolling member held and configured to roll between the fixed member and the movable member,
wherein at least one of the fixed member, the movable member, and the guide member includes a movement restrictor configured to restrict a moving range of a restricted rolling member as at least one of the first to third rolling members in a predetermined direction on the plane perpendicular to the optical axis, and
wherein the movement restrictor is formed such that as the restricted rolling member approaches to an end portion of the moving range, a center of the restricted rolling member approaches to a centerline in a width direction perpendicular to the predetermined direction of the movement restrictor.

US Pat. No. 11,067,872

OPTICAL PARAMETRIC OSCILLATOR

BLUE INDUSTRY AND SCIENCE...


1. A doubly resonant optical parametric oscillator comprising:a fan-out crystal having an optical non-linearity of order 2 and placed in an optical cavity able to reflect a pump, said fan-out crystal having an entrance face and an exit face, and an optical axis passing through said entrance face and said exit face, an upper face and a lower face,
wherein said fan-out crystal includes a grating of polarity-inverted lines originating separately and in a narrowly spaced manner at a fictional upper line that is parallel to the upper face of the fan-out crystal, and ending separately and in a widely spaced manner either at a fictional lower line that is parallel to the lower face of the fan-out crystal, or at the entrance face of the fan-out crystal, and in that two polarity-inverted successive lines make between each other a constant angle, said grating starting with a first straight line originating at the exit face of the fan-out crystal and extending towards the fictional lower line while diverging from said exit face, all the other polarity-inverted lines gradually and monotonically inclining from said first straight line towards the entrance face of the fan-out crystal.

US Pat. No. 11,067,871

INTEGRATED IMAGING APPARATUS AND DISPLAY DEVICE

BOE TECHNOLOGY GROUP CO.,...


17. A display device, comprising: a control circuit and an integrated imaging apparatus, the integrated imaging apparatus comprising: a display member, an incident light adjusting member, a lens array and a second lens that are sequentially arranged; whereinthe control circuit is configured to control the display member to display an image;
the incident light adjusting member has an adjustable refractive index, and is configured to reduce a pixel divergence angle of an incident light emitted by the display member;
the lens array comprises a plurality of first lens, the plurality of first lens being arranged on a plane parallel to the display member; and
the second lens and the display member are coaxially arranged,
wherein the display member is a display panel having a plurality of pixel units, and the incident light adjusting member has a plurality of prism groups one-to-one corresponding to the plurality of pixel units, the prism group being configured to reduce a pixel divergence angle of an incident light of a corresponding pixel unit in the display panel;
the prism group comprises a first prism unit and a second prism unit that are symmetrically arranged, a light incident surface of the first prism unit and a light incident surface of the second prism unit being in a same plane; and,
the prism group is configured to enable a pixel divergence angle ? of the incident light of the corresponding pixel unit and a deflection angle ? of a light emergent from the prism group to satisfy ??2???0; wherein ?0=2 arctan [p/(2×g)], g being a distance from the display member to the lens array, and p being a diameter of a first lens in the lens array.

US Pat. No. 11,067,870

METHOD AND SYSTEM OF SELF-CONTAINED AND SELF-POWERED CONTROLLER

FURCIFER INC., Fremont, ...


1. An electrochromic system, comprising:one or more electrochromic devices, each electrochromic device comprising:two glass layers;
two adhesive layers disposed on inner surfaces of the two glass layers;
an electrochromic film disposed between the two adhesive layers, the electrochromic film including an electrochromic material layer, an electrolyte layer, and a charge storage layer, wherein the electrolyte layer comprises an electrolyte salt, a polymer matrix, and at least one plasticizer;
a controller integrated with each electrochromic device, including a power converter, a signal receiver, and a power output, a power storage unit and a solar cell, the power converter configured to receive power from the power storage unit, the solar cell configured to convert solar energy to electric energy and charge the power storage unit, the signal receiver configured to receive a control signal, and the power output coupled to the electrochromic film and configured to provide power to the electrochromic film to control optical state of the electrochromic film; and
a control device configured to send the control signal to the signal receiver, and

a central control device configured to globally control optical states of all of the one or more electrochromic devices.

US Pat. No. 11,067,869

SELF-CONTAINED EC IGU

View, Inc., Milpitas, CA...


1. A window assembly comprising:a lite comprising an electrochromic device thereon;
a controller disposed on or in the window assembly, the controller configured to control one or more optical transitions of the electrochromic device,
wherein a plurality of window assemblies including the window assembly are installed on a self meshing network,
wherein each window assembly of the plurality of window assemblies is configured to automatically sense its physical position relative to other window assemblies of the plurality of window assemblies,
wherein the controller of each window assembly senses relative physical distances between the controller and other controllers associated with other window assemblies of the plurality of window assemblies, and
wherein the relative physical distances between the controller and the other controllers associated with other window assemblies of the plurality of window assemblies are combined to automatically generate a map illustrating the relative physical positions of the plurality of window assemblies; and
a flexible conductor, configured to electrically connect the controller and the electrochromic device.

US Pat. No. 11,067,868

THIN WIRE BUS BAR

GENTEX CORPORATION, Zeel...


1. An electro-optic device comprising:a first substrate having a front surface and a rear surface and a second substrate having a front surface opposed to the rear surface of the first surface;
a cavity defined between the rear surface of the first substrate and the opposed front surface of the second substrate;
an electrically conductive coating disposed on at least one of the rear surface of the first substrate and the front surface of the second substrate;
a first metal strip having a first surface, a second surface, a thickness measured between the first surface and the second surface, and a width, extending at least partially around a circumference of the rear surface of the first substrate; and
a sealing member bonding first substrate and second substrate together in a spaced apart relationship;
wherein the sealing member at least partially covers at least a portion of the second surface of the first metal strip;
wherein the first metal strip has a length;
wherein the first metal strip comprises at least one wide portion along the length, the wide portion of the metal strip being wider than the rest of the metal strip and extending from the sealing member around an edge of the substrate and adhered to the front surface of the substrate, the wide portion having a width that is wider than 0.01 inch.

US Pat. No. 11,067,867

ELECTROCHROMIC ORGANIC FRAMEWORKS

GENTEX CORPORATION, Zeel...


1. An electrochromic device, comprising:a first substantially transparent substrate coupled to a first electrically conductive material;
a second substrate coupled to a second electrically conductive material; and
an electrochromic medium comprising:at least one solvent and/or an electrolyte gel;
at least one cathodic material; and
at least one anodic material;
wherein the cathodic material is a cathodic organic framework electroactive material and/or the anodic material is an anodic organic framework electroactive material;
wherein at least one of the anodic and cathodic materials is electrochromic;
wherein the cathodic organic framework electroactive material is represented by the following structure (VI):






wherein the anodic organic framework electroactive material is represented by the following structure (I):






wherein L and L? may both include an organic connector group and wherein Z and Z? may both include an organic linking group.

US Pat. No. 11,067,866

MULTI-STABLE ELECTRORESPONSIVE SMART WINDOW AND PREPARATION METHOD THEREOF

South China Normal Univer...


1. A multi-stable electroresponsive smart window comprising:a first light transmitting conductive substrate, a parallel orientation layer, a positive polymer stabilized cholesteric texture layer, a positive cholesteric texture layer and a second light transmitting conductive substrate disposed in stack successively;
wherein the positive polymer stabilized cholesteric texture layer comprises a polymeric monomer of 2% to 10%, a photoinitiator of 0.1% to 2%, a chiral dopant of 8% to 20%, and a positive liquid crystal of 68% to 89.9%; and
wherein the positive cholesteric texture layer comprises a chiral dopant of 8% to 20% and a positive liquid crystal of 80% to 92%; and
wherein the chiral dopant used in the positive cholesteric texture layer has the same chirality as the chiral dopant used in the positive polymer stabilized cholesteric texture layer.

US Pat. No. 11,067,865

DISPLAY APPARATUS

Au Optronics Corporation,...


1. A display apparatus, comprising:a first substrate;
a second substrate disposed opposite to the first substrate;
a display medium disposed between the first substrate and the second substrate;
a pixel structure disposed between the display medium and the first substrate;
a read-out transistor disposed between the second substrate and the display medium, wherein the read-out transistor has a semiconductor pattern and a control terminal;
a first insulating layer disposed between the semiconductor pattern of the read-out transistor and the control terminal of the read-out transistor;
a light-sensing structure disposed between the second substrate and the display medium and electrically connected to the read-out transistor; and
a color filter pattern disposed between the second substrate and the display medium, wherein the first insulating layer has an opening located outside the light-sensing structure, and the color filter pattern fills the opening of the first insulating layer.

US Pat. No. 11,067,864

DISPLAY DEVICE, LIQUID CRYSTAL DISPLAY DEVICE, AND ORGANIC EL DISPLAY DEVICE

SHARP KABUSHIKI KAISHA, ...


1. A display device comprising:a substrate having a displaying region and a non-displaying region;
a plurality of first switching elements;
a plurality of gate lines each of which is respectively connected to a gate of one or more of the plurality of first switching elements;
a plurality of second switching elements;
a plurality of sub gate lines each of which is respectively connected to a gate of one or more of the plurality of second switching elements;
one or more connecting lines each of which connects a respective one of the plurality of gate lines to a respective one of the plurality of sub gate lines;
one or more source lines; wherein
the one or more connecting lines are provided in a layer differing from both (i) a layer in which the plurality of gate lines are provided an (ii) a layer in which the one or more source lines are provided.

US Pat. No. 11,067,863

LIQUID CRYSTAL PANEL AND LIQUID CRYSTAL DISPLAY DEVICE

SHARP KABUSHIKI KAISHA, ...


1. A liquid crystal panel comprising:a first substrate; and
a second substrate, wherein
liquid crystal is held between the first substrate and the second substrate,
the first substrate includesa plurality of first wires,
a second wire that intersects with the plurality of first wires, and
a third wire that is arranged in a layer different from a layer in which the second wire is arranged and that is arranged in parallel to the second wire,

an aperture is formed in at least any of all intersection portions in which the plurality of first wires and the second wire intersect,
the second wire and the third wire are connected through a contact hole that is formed in the aperture,
the plurality of first wires includes a gate line and an auxiliary capacitance line that is arranged in parallel to the gate line,
the second wire and the third wire are respectively a first source line and a second source line, and
the aperture includes a gate line aperture that is formed in an intersection portion of the gate line and the first source line and an auxiliary capacitance line aperture that is formed in an intersection portion of the auxiliary capacitance line and the first source line.

US Pat. No. 11,067,862

DISPLAY PANEL, MANUFACTURING METHOD THEREOF AND DISPLAY DEVICE

HKC Corporation Limited, ...


1. A display panel comprising:a substrate;
a black matrix layer, disposed on a surface of the substrate, the black matrix layer comprising a plurality of first direction shading bars and a plurality of second direction shading bars, and the plurality of first direction shading bars are vertically intersected with the plurality of second direction shading bars to form a plurality of interspaces; and
a color filter layer, disposed on the surface of the substrate and a surface of the black matrix layer, the color filter layer comprising a plurality of photoresists, each of the photoresists comprising an intermediate photoresist part and two edge photoresist parts respectively connected to two sides of the intermediate photoresist part, a width of the intermediate photoresist part being larger than a width of each of the edge photoresist parts, and the width of each of the edge photoresist parts being smaller than a width of each of the first direction shading bars, wherein:
a thickness of the intermediate photoresist part is greater than a thickness of each of the edge photoresist parts;
the plurality of photoresists correspond to the plurality of interspaces respectively, each of the intermediate photoresist part is located in one of the interspaces and is in contact with the substrate, and each of the edge photoresist parts covers part of one of the first direction shading bars; and
a first direction shading bar between two adjacent intermediate photoresist parts is completely covered by two adjacent edge photoresist parts, and a second direction shading bar between two adjacent intermediate photoresist parts is exposed by the color filter layer.

US Pat. No. 11,067,861

THIN FILM TRANSISTOR SUBSTRATE HAVING ELECTROSTATIC PROTECTION STRUCTURE AND LIQUID CRYSTAL DISPLAY PANEL

Century Technology (Shenz...


1. A thin film transistor (TFT) substrate, the TFT substrate defining a display area and a non-display area surrounding the display area, comprising:a substrate;
an electrostatic protection structure on the substrate and in the non-display area,
wherein the electrostatic protection structure comprises a transparent conductive layer and a discharge metal layer on the transparent conductive layer;
the discharge metal layer partially overlaps with the transparent conductive layer, the discharge metal layer is in direct contact with the transparent conductive layer; the transparent conductive layer has a width that is greater than a width of the discharge metal layer.

US Pat. No. 11,067,860

LIQUID CRYSTAL DIFFRACTIVE DEVICES WITH NANO-SCALE PATTERN AND METHODS OF MANUFACTURING THE SAME

Magic Leap, Inc., Planta...


1. An optical device comprising a liquid crystal layer having a first major surface, a second major surface and a thickness, the first and the second major surfaces extending across a transverse direction and the thickness extending along a direction parallel to a surface normal of the first or the second major surface, the liquid crystal layer comprising a plurality of sub-layers distributed across the thickness of the liquid crystal layer, each of the plurality of sub-layers comprising a single layer of liquid crystal molecules, each of the liquid crystal molecules having a longitudinal axis,each sub-layer comprising:a first domain in which the longitudinal axes of a plurality of the liquid crystal molecules are arranged to form a first pattern; and
a second domain in which the longitudinal axes of a plurality of the liquid crystal molecules are arranged to form a second pattern;

wherein the first domain is spaced apart laterally along the transverse direction from the second domain by a domain gap having a distance D between about 10 nm and about 50 nm, wherein the longitudinal axes of the liquid crystal molecules in the domain gap progressively transition from the first pattern to the second pattern.

US Pat. No. 11,067,859

LIQUID CRYSTAL DISPLAY DEVICE AND REPAIRING METHOD THEREOF

Samsung Display Co., Ltd....


1. A liquid crystal display device comprising:a gate line configured to transmit a gate signal;
a first data line crossing the gate line and configured to transmit a first data signal;
a first storage electrode set;
a first thin film transistor comprising a first gate electrode, a first source electrode, a first drain electrode, and a first semiconductor member, wherein the first gate electrode is electrically connected to the gate line, wherein the first source electrode is electrically connected to the first data line, wherein the first drain electrode has an expansion part, and wherein the expansion part of the first drain electrode and a first expansion part of the first storage electrode set overlap each other and form a storage capacitor;
a first pixel electrode electrically connected to the first drain electrode and comprising a protrusion, wherein the protrusion directly contacts the expansion part of the first drain electrode and overlaps the first expansion part of the first storage electrode set; and
a first repair member formed of an electrically conductive material, electrically insulated from each of the first drain electrode, the first data line, and the first storage electrode set, and overlapping a second part of the first storage electrode set.

US Pat. No. 11,067,858

LIQUID CRYSTAL DISPLAY DEVICE

SHARP KABUSHIKI KAISHA, ...


1. A liquid crystal display device comprising:a first substrate;
a second substrate; and
a liquid crystal layer held between the first substrate and the second substrate,
wherein the first substrate includes a plurality of first spacers protruding toward the liquid crystal layer,
the second substrate includes, on a surface closer to the liquid crystal layer, an alignment film, a plurality of second spacers in contact with the plurality of first spacers, and a plurality of pedestal films facing the plurality of first spacers,
a height of the plurality of second spacers is greater than a height of the plurality of pedestal films, and
the plurality of pedestal films include a first pedestal film having a smaller area than an area of each of the plurality of second spacers, and a second pedestal film having a planar pattern that is longer, as a whole, than a planar pattern of the first pedestal film.

US Pat. No. 11,067,857

DISPLAY PANEL, DISPLAY DEVICE, AND METHOD FOR MANUFACTURING DISPLAY PANEL

SAKAI DISPLAY PRODUCTS CO...


1. A display panel comprising:a first substrate having a surface provided with an electrode layer;
a second substrate having a surface provided with line routing for applying signals to the electrode layer, the surface of the second substrate facing the surface of the first substrate;
a sealing section defining a sealed space between the opposing surfaces of the first and second substrates; and
a plurality of pillar sections enabling electrical connection between the electrode layer and the line routing, wherein
the pillar sections are located in contact with the sealing section,
the surface of the first substrate is provided with a plurality of coloring films,
each of the pillar sections includes a base and the electrode layer covering the base, the base including the plurality of coloring films stacked on one another on the surface of the first substrate at a position that allows the pillar section to be in contact with the sealing section,
in the base, each of the plurality of coloring films is in contact with the surface of the first substrate,
every upper coloring film entirely covers every lower coloring film among the plurality of coloring films in the base of each pillar section, and
in the base, the electrode layer covering the base is in contact with only an uppermost coloring film among the plurality of coloring films.

US Pat. No. 11,067,856

METHOD OF MANUFACTURING IMPACT RESISTANT DISPLAY APPARATUS

Samsung Display Co., Ltd....


1. A method of manufacturing a display apparatus, the method comprising:providing an intermediate product comprising:a first substrate comprising a first external surface and a first internal surface;
a second substrate comprising a second external surface and a second internal surface;
a display unit comprising an array of pixels disposed between the first substrate and the second substrate; and
an adhesive member located between the first internal surface of the first substrate and the second internal surface of the second substrate to surround the display unit and combining the first and second substrates together; and

cutting the intermediate product to make a final product, wherein, in the final product, the first substrate comprises a first side connecting the first external surface and the first internal surface, wherein, in a cross section perpendicular to the first external surface, the first side comprises a first straight region and a first curved region located between the first straight region and the first internal surface, where at least a portion of the first curved region is farther from the display unit than the first straight region when viewed in a viewing direction perpendicular to the first external surface, and further such that the second substrate comprises a second side connecting the second external surface and the second internal surface, wherein, in the cross section, the second side comprises a second straight region and a second curved region located between the second straight region and the second internal surface, where at least a portion of the second curved region is farther from the display unit than the second straight region when viewed in the viewing direction perpendicular to the first external surface.

US Pat. No. 11,067,855

APPARATUS AND METHODS FOR ALIGNING PHOTOPOLYMERS USING AN ASYMMETRICALLY FOCUSED BEAM

Facebook Technologies, LL...


19. An apparatus for aligning a layer of photopolymers, comprising:a first optical element configured to receive and transmit incident light and
a second optical element configured to asymmetrically focus the light transmitted by the first optical element, whereinthe first optical element is further configured to be rotated about its optical axis;
the first optical element, when rotated to a first position, is configured to convert the incident light into first light having first polarization, the first light being asymmetrically focused by the second optical element onto a first region of the layer of photopolymers;
the first optical element, when rotated to a second position, is configured to convert the incident light into second light having second polarization, and the second light being asymmetrically focused onto a second region of the layer of photopolymers; and
the second optical element is a cylindrical lens configured such that the first region and the second region each has a surface area with an aspect ratio of at least 2500:1.


US Pat. No. 11,067,854

METHOD OF APPLYING ALIGNMENT FILM, AND COLOR FILTER SUBSTRATE

Mitsubishi Electric Corpo...


1. A method of applying an alignment film on a substrate of a liquid crystal panel, the method comprising:forming on the substrate, a surface having high wettability and a surface having low wettability with respect to a material of the alignment film, wherein the surface having high wettability corresponds to a display region of the liquid crystal panel, and the surface having low wettability corresponds to a peripheral region of the display region and includes a region where at least one of a peripheral seal material is to be formed, a mounting member is to be attached, or an inspection terminal onto which a needle is brought into contact upon inspection is to be located;
applying the material of the alignment film on the substrate by bringing uniformly the material of the alignment film into contact with the surface having high wettability and the surface having low wettability by using a transfer plate, wherein the transfer plate has a solid pattern; and
separating the transfer plate and the surface of the substrate such that the material of the alignment film is left on the surface having high wettability and the material of the alignment film is not left on the surface having low wettability,
wherein the material of the alignment film brought into contact with the surface having low wettability is left on the transfer plate.

US Pat. No. 11,067,853

DISPLAY DEVICE AND DISPLAY OPTIMIZATION METHOD

Wuhan China Star Optoelec...


1. A display device, comprising:a display screen configured to provide a first display region and a second display region, wherein the display screen comprises two polarizers, an array substrate, a color film substrate, and a liquid crystal layer, each of the array substrate and the color film substrate is disposed on one of the two polarizers, the liquid crystal layer is disposed between the array substrate and the color film substrate, and each of the two polarizers is arranged within the first display region;
a first backlight member disposed on one side of the display screen providing the first display region, wherein the first backlight member has a first opening that is aligned with the second display region;
a light guiding member disposed in the first opening of the first backlight member;
a second backlight member disposed on one side of the light guiding member away from the display screen, wherein the second backlight member has a second opening, and the second backlight member and the first backlight member overlap around the first opening;
a camera disposed in the second opening of the second backlight member;
a first backlight driver electrically connected to the first backlight member;
a second backlight driver electrically connected to the second backlight member; and
a controller electrically connected to the first backlight driver and the second backlight driver, wherein the controller adjusts backlight-current of one of the first backlight member and the second backlight member according to a difference between two backlight-brightness levels that are measured within the first display region and the second display region, until the two backlight-brightness levels are the same ones.

US Pat. No. 11,067,852

LIQUID CRYSTAL DISPLAY DEVICE

HISENSE VISUAL TECHNOLOGY...


1. A liquid crystal display device, comprising:a back plate comprising:a bottom portion, and
a side wall perpendicular to the bottom portion, wherein the side wall comprises:a first sub-side wall,
a second sub-side wall, and
a side wall connection portion connecting the first sub-side wall and the second sub-side wall,
wherein the first sub-side wall, the second sub-side wall, and the side wall connection portion form an integral structure; and

a back plate connection portion connecting the bottom portion and the side wall, wherein the back plate connection portion comprises:a platform portion connecting with the side wall and being parallel to the bottom portion,
a slope portion connecting with the bottom portion and being at a first angle with respect to the bottom portion, where the first angle is in a range of 20 degrees to 50 degrees, inclusive, and
a transition portion connecting the slope portion and the platform portion;


a middle frame comprising:a first support portion parallel to the bottom portion of the back plate,
a second support portion disposed opposite to the first support portion, wherein the platform portion of the back plate connection portion is configured to support the second support portion of the middle frame, and
a middle frame connection portion connecting the first support portion and the second support portion, wherein the first support portion, the second support portion and the middle frame connection portion form a recess; and

a diffusion plate comprising a portion located within the recess.

US Pat. No. 11,067,851

LIGHT-EMITTING APPARATUS AND DISPLAY APPARATUS

CANON KABUSHIKI KAISHA, ...


1. A light-emitting apparatus comprising:a light source board on which a first light source group including a plurality of light sources and a sensor that detects light or temperature are disposed; and
a reflection sheet that is disposed on a side of the light source board where the first light source group and the sensor are disposed, an opening from which the first light source group is exposed being formed on the reflection sheet,
wherein the sensor is surrounded by the plurality of light sources,
the plurality of light sources are disposed in rotational symmetric positions, and
on a plane that is parallel with the light source board,
each of the plurality of light sources has a substantially rectangular shape, and
for each of the plurality of light sources, a virtual line which passes through a center of the light source and is parallel with a short side of the light source, does not pass through the rotational symmetric axis.

US Pat. No. 11,067,850

MULTI-MODE DISPLAY

3M INNOVATIVE PROPERTIES ...


1. A multi-mode display, comprising:an emissive display element comprising multiple pixel elements and configured to directly provide an image;
a partial reflector, disposed on the emissive display element;
a spatial light modulator disposed on the partial reflector; and
an absorbing polarizer disposed on the spatial light modulator;
wherein in a mode where the multi-mode display operates as a reflective display, to provide maximum reflection, the spatial light modulator is configured such that light is not rotated after passing through the absorbing polarizer, and to provide minimum reflection, the spatial light modulator is configured so that light is rotated after passing through the absorbing polarizer.

US Pat. No. 11,067,849

LIQUID CRYSTAL DISPLAY APPARATUS

PANASONIC INTELLECTUAL PR...


1. A liquid crystal display apparatus comprising:a quadrangular liquid crystal panel having a reflection layer on a back surface opposite to a display surface of the liquid crystal panel;
a light guiding plate formed in a quadrangular shape substantially the same as that of the liquid crystal panel, being laminated on the display surface, configured to diffusely reflect light incident from one end surface of the light guiding plate and emits the light toward the display surface, and having a pair of convex portions that protrude outward from a pair of end surfaces that sandwich the one end surface; and
a frame having a light source holding plate in which a light source is mounted on a light source fixing plate, the light source causing light to be incident on the one end surface, the light source fixing plate being bent perpendicularly to a back-side portion and facing the one end surface, the back-side portion being formed in a quadrangular shape substantially the same as that of the liquid crystal panel,
wherein bent side plate portions, that face the pair of end surfaces, are respectively provided on a pair of side portions of the back-side portion that sandwich the light source fixing plate; and
wherein notches, into which the convex portions are fitted, are provided in the pair of bent side plate portions.

US Pat. No. 11,067,848

SWITCHABLE REFLECTIVE DEVICES INCLUDING FIRST AND SECOND OPTICALLY TRANSPARENT MATERIALS WITH DIFFERENT REFRACTIVE INDEXES AND METHODS AND SYSTEMS FOR FABRICATION THEREOF

Facebook Technologies, LL...


1. A device comprising:a first conductor;
a first optically transparent material electrically coupled to the first conductor, the first optically transparent material including a plurality of nanovoids within an elastomer matrix and having a first refractive index,
wherein the plurality of nanovoids includes gas-filled pores within the elastomer matrix wherein the gas includes one of sulfur hexafluoride and fluorocarbon;
a second optically transparent material electrically coupled to the first optically transparent material, the second optically transparent material having a second refractive index that is greater than the first refractive index; and
a second conductor electrically coupled to the second optically transparent material.

US Pat. No. 11,067,847

POLARIZER PROTECTIVE FILM, POLARIZING PLATE COMPRISING SAME, AND LIQUID CRYSTAL DISPLAY DEVICE COMPRISING POLARIZING PLATE

LG CHEM, LTD., Seoul (KR...


1. A liquid crystal display device comprising:a backlight unit;
a color filter;
a liquid crystal panel provided on one side of the backlight unit; and
a polarizing plate provided between the backlight unit and the liquid crystal panel, the polarizing plate comprising:a polarizer; and
a wide color gamut film provided on at least one surface of the polarizer as a protective film, the wide color gamut film comprising:a transparent substrate;
a wide color gamut layer provided on one surface of the transparent substrate, and including a compound including a photocurable functional group, and a dye or pigment having a maximum absorption wavelength in a range of 580 nm to 610 nm; and
a surface layer provided on the wide color gamut layer,
wherein the transparent substrate, the wide color gamut layer and the surface layer are consecutively laminated,


wherein the polarizing plate is provided such that the wide color gamut film faces the backlight unit, and the wide color gamut film increases color purity of RGB base colors and enhances wide color reproduction.

US Pat. No. 11,067,846

COLOR FILTER SUBSTRATE AND FABRICATING METHOD THEREOF, DISPLAY PANEL

BOE TECHNOLOGY GROUP CO.,...


6. A color filter substrate, comprising:a base substrate;
a black matrix on the base substrate;
spacers on a side of the black matrix away from the base substrate;
an auxiliary electrode on a side of the spacers away from the black matrix, an orthographic projection of the black matrix on the base substrate covering an orthographic projection of the auxiliary electrode on the base substrate, and the orthographic projection of the auxiliary electrode on the base substrate completely covering orthographic projections of the spacers on the base substrate; and
color filters on the base substrate and in a space defined by the black matrix on which the auxiliary electrode is disposed,
wherein the orthographic projection of the auxiliary electrode on the base substrate does not overlap orthographic projections of the color filters on the base substrate, and the orthographic projection of the auxiliary electrode on the base substrate and the orthographic projection of the black matrix on the base substrate completely overlap each other.

US Pat. No. 11,067,845

LIQUID CRYSTAL PANEL AND METHOD OF MANUFACTURING SAME

WUHAN CHINA STAR OPTOELEC...


1. A liquid crystal panel, comprising:a color filter substrate, comprising a quantum dot color filter and an encapsulation layer;
an array substrate disposed opposite to the color filter substrate; and
a built-in polarizer, comprising:
a substrate covered a side of the color filter substrate facing the array substrate;
a first inorganic layer covered the substrate;
a metal wire grid layer covered the first inorganic layer, wherein the metal wire grid layer has a plurality of metal wires parallel to each other; and
a second inorganic layer has a plurality of inorganic wires parallel to each other, wherein each of the inorganic wires correspondingly covers one of the metal wires;
wherein the quantum dot color filter is disposed on a side of the substrate opposite another side of the substrate facing the first inorganic layer, and the encapsulation layer covers the quantum dot color filter, wherein transmittance to water vapor and oxygen of the encapsulation layer is less than 1×10?2.

US Pat. No. 11,067,844

COLOR CONVERSION PANEL AND DISPLAY DEVICE INCLUDING THE SAME

Samsung Display Co., Ltd....


1. A color conversion display panel comprisinga first color conversion layer and a second color conversion layer disposed on a color conversion substrate and a transmission layer disposed on the color conversion substrate,
wherein each of the first color conversion layer and a second color conversion layer includes semiconductor nanocrystals,
wherein a first distance of a first separation space between a first edge of the first color conversion layer and a second edge of the second color conversion layer that faces the first edge of the first color conversion layer is different from a second distance of a second separation space between a third edge of one of the first and second color conversion layers and a fourth edge of the transmission layer that faces the third edge of the one of the first and second color conversion layers, and
wherein the first separation space does not overlap the first color conversion layer or a second color conversion layer in a plan view, and the second separation space does not overlap the one of the first and second color conversion layers or the transmission layer.

US Pat. No. 11,067,843

DISPLAY DEVICE FOR HEAD-MOUNTED DISPLAY, AND HEAD-MOUNTED DISPLAY

SHARP KABUSHIKI KAISHA, ...


1. A display device for a head-mounted display, comprisinga first display panel and a second display panel that are arranged in parallel,
wherein each of the first display panel and the second display panel comprisesa pair of substrates comprising a plane sectioned into a display region and a non-display region, and
a spacer interposed between the pair of substrates, the spacer being columnar,
the pair of substrates comprising a spacer lightproof portion placed over the spacer,

the first display panel has a plurality of red pixels, a plurality of green pixels, and a plurality of blue pixels, and displays a left-eye image,
the second display panel has a plurality of red pixels, a plurality of green pixels, and a plurality of blue pixels, and displays a right-eye image, and
where the spacer lightproof portion in the display region of the first display panel is disposed and where the spacer lightproof portion in the display region of the second display panel is disposed are shifted from each other.

US Pat. No. 11,067,842

CONTRAST RATIO IMPROVING OPTICAL FILM, POLARIZING PLATE COMPRISING SAME, AND LIQUID CRYSTAL DISPLAY DEVICE COMPRISING SAME

Samsung SDI Co., Ltd., Y...


1. A contrast ratio improving optical film comprising a contrast ratio improving layer,wherein,
the contrast ratio improving layer comprises a first resin layer and a second resin layer facing the first resin layer,
the second resin layer comprises a pattern part having optical patterns and a flat part between the optical patterns,
the optical patterns have at least one inclined surface with respect to the flat part,
the flat part or the inclined surface has a light absorption layer formed thereon, the light absorption layer being between a light exit surface of the first resin layer and the flat part or the inclined surface, and
the contrast ratio improving optical film has a minimal reflectance of 0.5% or less.

US Pat. No. 11,067,841

MANUFACTURING METHOD OF A DISPLAY DEVICE COMPRISING POLYMERIZING A MONOMER CONTAINED IN A SECOND LIQUID CRYSTAL LAYER IN A REGION NOT OVERLAPPING WITH A COLORING LAYER BY LIGHT IRRADIATION

Semiconductor Energy Labo...


1. A manufacturing method of a display device comprising:forming, over a support substrate, a first electrode, an insulating layer covering the first electrode, and a second electrode including a portion not overlapping with the first electrode over the insulating layer;
forming, over a second substrate, a coloring layer and a fourth electrode over the coloring layer;
bonding the support substrate and the second substrate such that a second liquid crystal layer containing a liquid crystal, a monomer, and a polymerization initiator is sandwiched therebetween, a portion where the coloring layer and the first electrode do not overlap with each other is formed, and a portion where the coloring layer and the second electrode overlap with each other is formed;
polymerizing the monomer contained in the second liquid crystal layer in a region not overlapping with the coloring layer by light irradiation to the coloring layer and the second liquid crystal layer from the second substrate side;
separating the support substrate from the first electrode to remove the support substrate; and
bonding the second substrate and a first substrate such that a first liquid crystal layer containing a liquid crystal is sandwiched between the first substrate and the first electrode.

US Pat. No. 11,067,840

DISPLAY PANEL AND DISPLAY APPARATUS

Beijing BOE Optoelectroni...


1. A display panel, comprising an array substrate and a color film substrate that are oppositely arranged, a liquid crystal layer filled between the array substrate and the color film substrate, and a polarizer covering a side of the color film substrate distal from the liquid crystal layer, a protrusive structure and a reflective layer disposed between the protrusive structure and the liquid crystal layer being formed on the array substrate; whereinthe array substrate comprises a plurality of pixel units arranged on a substrate, each pixel unit being provided with a first region and a second region that are adjacent to each other, and a thickness of a pixel unit disposed in the first region is greater than that of a pixel unit disposed in the second region; and
the protrusive structure comprises a first protrusion disposed in the first region and a second protrusion disposed in the second region, a first included angle ?1 being formed between a sidewall of the first protrusion (151) and a bearing surface of the substrate, a second included angle ?2 being formed between a sidewall of the second protrusion and the bearing surface of the substrate, and the second included angle ?2 being substantially equal to the first included angle ?1;
wherein each of the first protrusion and the second protrusion is a centrosymmetric structure, an orthographic projection of the first protrusion on the substrate is a first pattern, and an orthographic projection of the second protrusion on the substrate is a second pattern, the second pattern being similar to the first pattern;
the first pattern has a predetermined maximum width L1, and the first protrusion has a height H1=(L1/2)*tan ?1;
the second protrusion has a predetermined height H2, and the second pattern has a maximum width L2=L1*(H2/H1); and
the maximum width of the second pattern is greater than that of the first pattern, and the height of the second protrusion is greater than that of the first protrusion.

US Pat. No. 11,067,839

OPTO-ELECTRONIC MODULATOR UTILIZING ONE OR MORE HEATING ELEMENTS

Aurrion, Inc., Goleta, C...


1. A method for modulating light in a modulator circuit, the method comprising:guiding light through an active region of a waveguide in the modulator circuit;
generating an electric field in the active region using a plurality of electrodes of the modulator circuit;
providing a bias voltage to the active region to adjust an absorption of the light by the modulator;
applying an initial level of heat to the active region using a heater of the modulator circuit; and
in response to an ambient temperature change changing the temperature of the modulator circuit, reducing heat applied by the heater to the active region from the initial level of heat to a reduced level of heat while maintaining the bias voltage provided to the active region, the reduced level of heat being lower than the initial level of heat.

US Pat. No. 11,067,838

EXTERNAL ELEMENT WITH TEMPERATURE SENSOR

The Swatch Group Research...


1. An external element of a timepiece comprising:a supporting structure made of a first material;
at least one device that reacts to temperature variations, wherein the device that reacts to temperature variations includes at least one thermochromic element that includes a thermochromic layer that includes a binder and a thermochromic pigment chosen to react at a specific temperature so that the pigment passes from a first color to a second color when the specific temperature is reached;
wherein the thermochromic element further includes a carrier layer having an upper surface on which the thermochromic layer is deposited and a protective layer that is resistant to ultraviolet radiation,
wherein the protective layer covers and is in direct physical contact with each of a top surface of the thermochromic layer and a side surface of the thermochromic layer,
wherein a portion of the protective layer is deposited directly on the upper surface of the carrier layer to be in direct physical contact with the upper surface of the carrier layer, and
wherein an area of the entire upper surface of the carrier layer is larger than an area of the entire surfaces of the thermochromic layer and protective layer deposited thereon.

US Pat. No. 11,067,837

POLARIZATION STATE SCRAMBLER

ARIZONA BOARD OF REGENTS ...


1. A polarization scrambler, comprising:a plurality of polarization elements positioned to receive polarized or partially polarized light, each polarization element comprising at least two layers:a first layer comprising a half waveplate to rotate a polarization direction of the polarized or partially polarized light, and
a second layer comprising a quarter waveplate to receive light that exits the first layer and to change a polarization state of the light that exits the first layer to another polarization state; and

a substrate to receive light exiting the second layer of each polarization element, and to allow the light received by the substrate to pass therethrough,
wherein a light output from the substrate includes a plurality of polarization states,
wherein fast axis angles of the half waveplate and the quarter waveplate are pre-computed for each of the plurality of polarization elements to produce a non-random distribution of output polarization states, having at least four different polarization states, on a section of a Poincaré sphere based on the pre-computed fast axis angles,
wherein, the pre-computed fast axis angles of the half waveplate and the quarter waveplate for each polarization element are collectively pre-computed based on a non-linear relationship between the non-random distribution of output polarization states and a polarization state of an input light having a polarization state different from the non-random distribution of output polarization states, and
wherein the polarization scrambler is a passive device that does not require power consumption for effectuating the particular distribution of output polarization states on the Poincaré sphere.

US Pat. No. 11,067,836

MULTI-STACK GRAPHENE STRUCTURE AND DEVICE INCLUDING THE SAME

SAMSUNG ELECTRONICS CO., ...


1. A multi-stack graphene structure comprising:a graphene stack comprising graphene layers and thin film dielectric layers, the graphene layers and the thin film dielectric layers being alternately stacked on one another, and the graphene layers comprising amorphous graphene; and
an electric field former configured to apply an electric field to the graphene layers,
wherein each of the thin film dielectric layers has a thickness less than 20 nm.

US Pat. No. 11,067,834

HIGH REFRACTIVE INDEX POLARIZED SPECTACLE LENS

Carl Zeiss Vision Interna...


1. A high refractive index, polarized spectacle lens comprising:a multi-layer, polarized film; and
a high refractive index lens substrate arranged on at least one surface of the multi-layer, polarized film,
wherein the multi-layer, polarized film includes at least one transparent support layer and at least two adhesion layers,
wherein at least one of the adhesion layers is a polarized adhesion layer,
wherein the at least one transparent support layer is located between the at least two adhesion layers,
wherein the polarized adhesion layer is arranged directly adjacent to the high refractive index lens substrate.

US Pat. No. 11,067,833

LIQUID CRYSTAL LENS AND LIQUID CRYSTAL SPECTACLES

BOE TECHNOLOGY GROUP CO.,...


1. A liquid crystal lens, comprising:a first substrate and a second substrate that is opposite the first substrate;
a mono-layered liquid crystal cell between the first substrate and the second substrate; and
an electrode unit comprising a first electrode and a second electrode,
wherein at least one of the first electrode and the second electrode comprises an annular electrode,
wherein the first electrode is on a side of the first substrate facing the second substrate and the second electrode is on a side of the second substrate facing the first substrate, and
wherein liquid crystals in the mono-layered liquid crystal cell are configured to form a Fresnel lens with an adjustable focal distance under an effect of the first electrode and the second electrode,
wherein the first electrode comprises a first pixel electrode, wherein the first pixel electrode comprises a plurality of first annular electrodes comprising the first annular electrode and arranged concentrically at intervals, wherein respective distances between adjacent first annular electrodes are equal, and
wherein the second electrode comprises a second pixel electrode, wherein the second pixel electrode comprises a plurality of second annular electrodes comprising the second annular electrode and arranged concentrically at intervals and corresponding to respective ones of the first annular electrodes, wherein respective distances between adjacent second annular electrodes are equal,
the liquid crystal lens further comprising:
an electrochromic layer and a third electrode arranged sequentially on a side of the second substrate facing away from the mono-layered liquid crystal cell,
wherein the electrochromic layer is configured to form an emotion pattern when a voltage is applied to the third electrode.

US Pat. No. 11,067,832

LENS ELEMENT

Essilor International, C...


1. A lens element intended to be worn in front of an eye of a wearer comprising:a prescription portion configured to provide to the wearer, in standard wearing conditions and for foveal vision, a first optical power, corresponding to a prescription of the wearer, for correcting an abnormal refraction of said eye of the wearer; and
at least three optical elements, at least one optical element of the at least three optical elements having an optical function of not focusing an image on a retina of the eye in standard wearing conditions and for peripheral vision to slow down progression of the abnormal refraction of the eye,
wherein the at least three optical elements are configured so that along at least one section of the lens element, a mean sphere of the at least three optical elements increases from a first point of the at least one section towards a peripheral part of the at least one section by at least 0.5 D, and decreases from a second point of the at least one section towards the peripheral part of the at least one section by at least 0.5 D, the second point being closer to the peripheral part of the at least one section than the first point,
wherein the mean sphere is defined as




?where SPHmin and SPHmax are minimum and maximum spheres respectively.

US Pat. No. 11,067,830

OPHTHALMIC PROGRESSIVE ADDITION LENS FOR A FARSIGHTED AND PRESBYOPIC WEARER; METHOD FOR PROVIDING SUCH A LENS

Essilor International, C...


1. An ophthalmic progressive addition lens for a farsighted and presbyopic wearer, comprising:a lens which has a prescribed far vision mean refractive power greater or equal to plus 1 Diopter and a non nil prescribed addition, ADDp,
wherein said lens has a mean refractive power, PPO(?, ?), a module of resulting astigmatism, ASR(?, ?), an acuity loss value ACU(?, ?), where said (?, ?) functions are determined in as-worn conditions of the lens by the wearer, and a first acuity criterion, AcuityCriterion1 which fulfils following requirement:AcuityCriterion1?44D2.deg, and where:

“D” refers to Diopter, “deg” to degree, AcuityCriterion1 is defined as a combination of PPO(?, ?), ASR(?, ?), ADDp, and ACU(?, ?),
wherein said lens has a meridian line, ML(?, ?), a fitting cross, FC(?FC, ?FC), said (?, ?) functions being determined in as-worn conditions of the lens by the wearer for gaze directions (?, ?) joining the center of rotation of the eye, CRE, and the lens, where ? is a lowering angle in degree and ? is an azimuth angle in degree,
wherein:
the acuity loss value ACU(?, ?) is expressed in logMAR and defined according to following equation: ACU(?, ?)=?log(AC %(?, ?)/100,
wherein:
AC %(?, ?)=100?63×P(?, ?)?44.3×ASR(?, ?)÷7.2×P(?, ?)2+19.5×P(?, ?)×ASR(?, ?)+ASR(?, ?)2; when P(?, ?)?0,
AC %(?, ?)=100?44.3×ASR(?, ?)+ASR(?, ?)2; when P(?, ?)<0,
P(?, ?)=PPO(?, ?)?PPO(?, ?_?_mer),
?_?_mer is the value of the azimuth angle ? on the meridian line, ML(?, ?), at the lowering angle ?, and
wherein:
AcuityCriterion1=Numerator1/Denominator,
Numerator1=LAcuSub85(0.1)×LAcuAlpha85(0.1)×ADDp4,
Denominator=PeaksMean2×PVL2,
LAcuSub85(0.1) is the angular extent (in deg2) of the zone where ACU(?, ?)?0.1 logMAR, inside a circle, CIR, centered on (?, ?)=(12,0), which radius is 35 degrees, and where ???85%, ?85% being the lowering angle where 85% of the prescribed addition is perceived by the wearer on the meridian line,
LAcuAlpha85(0.1) is the acuity width (in deg) at ?85% between two iso-acuity loss lines corresponding to 0.1 logMAR and is equal to ?+(ACU(?85%, ?)=0.1)???(ACU(?85%, ?)=0.1), where ?+ is greater than ?_?_mer(?85%) and ?? is less than ?_?_mer(?85%),
PVL is the power variation length is expressed in deg and defined as being equal to (?85%??15%), ?15% being the lowering angle where 15% of the prescribed addition is perceived by the wearer on the meridian line, and
PeaksMean is the mean maximum module of resulting astigmatism (in Diopter,) which is equal to [ASRmax(?L, ?L)+ASRmax(?R, ?R)]/2, where ASRmax(?L, ?L) is the maximum module of resulting astigmatism on a side (left side) of the meridian line, and ASRmax(?R, ?R) is the maximum module of resulting astigmatism on the other side (right side) of the meridian line that are both determined inside a circle, CIR, centered on (?, ?)=(12,0), which radius is 35 degrees.

US Pat. No. 11,067,829

PROGRESSIVE LENS OPTICAL DESIGN DETERMINING SYSTEM

Crossbows Optical Ltd., ...


1. A computer-implemented method for determining a progressive lens optical design suitable for specific need of a user, comprising:receiving user inputs in a zone-tailoring phase;
determining an initial progressive lens optical design based upon the user inputs in the zone-tailoring phase;
determining two boundary progressive lens optical designs being generated from the zone-tailoring information in the zone-tailoring phase, wherein
the initial progressive lens optical design and the two boundary progressive lens optical designs comprise the same optical design inputted by the user in the zone-tailoring phase;
displaying simultaneously the initial progressive lens optical design and two boundary progressive lens optical designs to the user, wherein displaying simultaneously the initial progressive lens optical design and the two boundary progressive lens optical designs to the user further comprises generating a blurred image from each of the initial progressive optical lens design and the two boundary progressive lens optical designs and overlaying each blurred image on an image of a real-world scene
receiving inputs indicating that a modified progressive lens optical design should be closer to one of the two boundary progressive lens optical designs and one or more additional user inputs in a fine-tuning phase;
modifying the initial progressive lens optical design based upon the inputs indicating that the modified progressive lens optical design should be closer to one of the two boundary progressive lens optical designs and based upon the one or more additional user inputs in the fine-tuning phase to determine a modified progressive lens optical design;
displaying the modified progressive lens optical design to the user;
receiving an indication regarding whether additional modifications to the optical design are needed by the user;
in response to the received indication being indicative of additional modifications to the optical design are needed by the user:receiving inputs indicating that the modified progressive lens optical design should be closer to one of the two boundary progressive lens optical designs and one or more further user inputs in the fine-tuning phase;
modifying the initial progressive lens optical design based upon the inputs indicating that the modified progressive lens optical design should be closer to one of the two boundary progressive lens optical designs and based upon the one or more further user inputs in the fine-tuning phase to determine the modified progressive lens optical design;
displaying the modified progressive lens optical design to the user; and

in response to the received indication being indicative of no additional modifications being needed, determining data representative of a final progressive lens optical design from the modified progressive lens optical design.

US Pat. No. 11,067,828

EYEWEAR LENS OR OPTICAL FILM WITH DECORATIVE DICHROMIC MIRROR PATTERN HAVING VARIABLE OPACITY

Brandon T. Michaels, Pal...


1. A patterned dichromic mirror coating on a photochromic eyewear lens that has variable opacity comprising:a stock photochromic eyewear lens without modification to the photochromic layer;
said photochromic eyewear lens containing a coated pattern of dichromic mirror layer forming an image on the outer lens surface;
said image viewable only to an external viewer;
said image having variable opacity that ranges from transparent to opaque in response to ambient UV light.

US Pat. No. 11,067,827

SYSTEM TO SECURE GLASSES TO HAT

Joseph Micael Masters, L...


1. A system to secure a pair of glasses to a hat, the system comprising:a hatband insert configured to be inserted in a hatband of a hat;
one or more hatband magnetic members configured to be selectively attachable to a plurality of locations of the hatband insert;
one or more glasses magnetic members configured to be attached to each temple of a pair of glasses;
a pair of temple attachments each configured to hold at least one of the one or more glasses magnetic members and to slip over a distal end of the temple to attach the one or more glasses magnetic members to the temple; and
a retaining strap, and wherein the temple attachments each comprise an extending portion extending from the temple attachment and configured to be coupled to an end of the retaining strap such that the retaining strap is selectively attachable to the temple attachments;
wherein the one or more hatband magnetic members and the one or more glasses magnetic members are configured to be magnetically attached to selectively secure the glasses to the hat;
the retaining strap is formed with a protruding member proximate each end of the retaining strap, and wherein the extending portion of the temple attachments are each formed with a receiving portion to receive the respective protruding members of the retaining strap; and
the retaining strap is formed with a pair of receiving portions proximate a middle area of the retaining strap, the receiving portion configured to respectively receive the protruding members of the retaining strap when the protruding members are not received by the temple attachments.

US Pat. No. 11,067,826

OPTICAL DEVICE FOR PRESENTING A STEREOSCOPIC IMAGE

Omron Corporation, Kyoto...


1. An optical device comprising:a light guide plate configured to guide light entering therein from a light source, and cause said light to exit from an emission surface of the light guide plate; and
a plurality of optical-path deflectors arranged in the light guide plate and configured to change an optical path of light, which has been directed to the plurality of optical-path deflectors, so that the light exits from the light guide plate and forms an image in a space;
the plurality of optical-path deflectors including a plurality of groups of optical-path deflectors, the plurality of groups of optical-path deflectors including:
a group of narrow-view optical-path deflectors configured to form an image in a space within a narrow view direction taken as greater than or equal to 0° and less than a first angle relative to a reference plane that is orthogonal to the emission surface and parallel to a side surface of the light guide plate; and
a group of wide-view optical-path deflectors configured to form an image in a space within a wide view direction taken as greater than or equal to the first angle and less than 90° relative to the reference plane;
wherein the group of narrow-view optical-path deflectors and the group of wide-view optical-path deflectors have different image forming conditions,
wherein an interval between the group of wide-view optical-path deflectors and optical-path deflectors which are adjacent to the group of wide-view optical-path deflectors and are nearest to the group of wide-view optical-path deflectors is greater than that between the group of narrow-view optical-path deflectors and optical-path deflectors which are adjacent to the group of narrow-view optical-path deflectors and are nearest to the group of narrow-view optical-path deflectors.

US Pat. No. 11,067,825

DISPLAY SYSTEM PROVIDING CONCENTRIC LIGHT FIELD AND MONOCULAR-TO-BINOCULAR HYBRIDIZATION

Brelyon Inc., San Mateo,...


1. A display system comprising:a display arranged to emit or transmit light rays collectively forming a first image, the display including one or more light emission elements positioned so as to be in a direct line of sight of a human viewer when the human viewer is viewing a virtual image generated by the display system; and
an optical subsystem optically coupled to the display and arranged to configure the light rays from the display into a single contiguous light field that forms the virtual image based on the first image and that simultaneously encompasses both eyes of the human viewer when the human viewer is viewing the virtual image, such that an apparent size of the display to the human viewer is at least twice an actual size of the display while the display and the optical subsystem are positioned at least 10 cm from the eyes of the human viewer.

US Pat. No. 11,067,824

OPTICAL IMAGE STABILIZATION APPARATUS

CANON KABUSHIKI KAISHA, ...


1. An optical image stabilization apparatus comprising:an image stabilization element;
a base member;
a shift member configured to hold the image stabilization element and movable in a direction including a component orthogonal to an optical axis relative to the base member;
an elastic member configured to support the image stabilization element and the shift member; and
a driver configured to move the shift member,
wherein the driver includes:
a first magnet part and a second magnet part provided on one of the base member and the shift member;
a coil provided on the other of the base member and the shift member;
a first magnetized portion provided on a side of the first magnet part with respect to a center axis of an opening in the coil; and
a second magnetized portion spaced apart from the first magnetized portion and provided on a side of the second magnet part with respect to the center axis of the opening in the coil.

US Pat. No. 11,067,823

OPTICAL IMAGE STABILIZATION MECHANISM

TDK TAIWAN CORP., Taoyua...


1. An optical image stabilization mechanism, comprising:only one holder, configured to holding a lens having an optical axis, wherein the holder has:a first side surface;
a second side surface, parallel to the first side surface, and the lens disposed between the first side surface and the second surface;
a third side surface, not parallel to the first side surface and the second side surface; and
a fourth side surface, parallel to the third side surface, and the lens is disposed between the third side surface and the fourth side surface;

a frame, movably connected to the holder;
a base, movably connected to the frame;
wherein the base has a non-square rectangular structure viewed along the optical axis, and includes:a first side; and
a second side, wherein viewed along the optical axis, a length of the first side is less than a length of the second side,

wherein viewed along the optical axis, the first side surface is located on the first side, and the third side surface is located on the second side;
a first coil, affixed to the first side surface;
a plurality of second coils, affixed to the base;
wherein at least one of the second coils is located on the first side viewed in the optical axis;
a first magnetic element, affixed to the frame and corresponding to the first side surface, and the first magnetic element is corresponding to the first coil;
a second magnetic element, affixed to the frame and corresponding to the first side surface, and the first magnetic element is corresponding to the first and second coils, wherein the first and the second magnetic elements are arranged along a direction parallel to the optical axis, and magnetic poles of the first and second magnetic elements are opposite to each other; and
a third magnetic element, affixed to the frame and corresponding to the third side surface, and the third magnetic element is corresponding to the second coils, wherein the first coil is not disposed on the third side surface.

US Pat. No. 11,067,822

OPTICAL SYSTEM

TDK TAIWAN CORP., Tao Yu...


1. An optical system, comprising:a fixed module, comprising a base;
a movable module, comprising an optical member holder, wherein the optical member holder is configured to hold an optical member;
a first connecting element, wherein the movable module is movably connected to the fixed module by the first connecting element;
a sensing unit, configured to obtain information related to a first rotation angle of the optical member holder when rotating around a first axis relative to the base and a second rotation angle of the optical member holder when rotating around a second axis relative to the base, wherein the sensing unit is configured to output a sensing signal to a control unit; and
a driving assembly, configured to receive a driving signal from the control unit to generate a driving force to drive the movable module to move relative to the fixed module, and the driving assembly comprising a coil, wherein the coil and the movable module are arranged along a direction parallel to an optical axis of the optical member, and the coil is disposed around an opening of the base;
wherein the first axis or the second axis is perpendicular to the optical axis;
wherein when viewed along the optical axis, a connecting line of a center of the first connecting element and the optical axis is neither parallel to nor perpendicular to a direction of the driving force.

US Pat. No. 11,067,821

APODIZED OPTICAL ELEMENTS FOR OPTICAL ARTIFACT REDUCTION

FACEBOOK TECHNOLOGIES, LL...


1. An optical device for a near-eye display, the optical device comprising:a substrate transparent to visible light and infrared light and configured to be placed in front of an eye of a user of the near-eye display; and
a holographic grating conformally coupled to a surface of the substrate and configured to transmit the visible light and reflectively diffract infrared light in a first wavelength range for eye tracking, wherein the holographic grating includes a photopolymer layer on the surface of the substrate, and wherein a refractive index modulation of the holographic grating is apodized in a direction along a thickness of the photopolymer layer to reduce optical artifacts in the visible light.

US Pat. No. 11,067,820

STRUCTURED LIGHT PROJECTOR AND THREE-DIMENSIONAL IMAGE SENSING MODULE

HIMAX TECHNOLOGIES LIMITE...


1. A structured light projector, comprising:a light source;
an irradiation range controlling hardware, disposed on a transmission path of a light beam from the light source; and
a diffractive optical element, disposed on a transmission path of the light beam from the irradiation range controlling hardware, wherein the irradiation range controlling hardware is adapted to control an irradiation range of the light beam transmitted to the diffractive optical element so as to change a size of a region of the diffractive optical element illuminated by the light beam from the irradiation range controlling hardware,
wherein the diffractive optical element includes a first region and a second region surrounding the first region, a diffraction pattern generated on a target by the light beam illuminating the first region is a first diffraction pattern, and a diffraction pattern generated on the target by the light beam illuminating the second region is a second diffraction pattern, wherein
under a first mode of the structured light projector, the region illuminated by the light beam from the irradiation range controlling hardware is consisted of the first region, and the first diffraction pattern is generated on the target; and
under a second mode of the structured light projector, the region illuminated by the light beam from the irradiation range controlling hardware is consisted of the first region and the second region, and both of the first diffraction pattern and the second diffraction pattern are generated on the target.

US Pat. No. 11,067,819

OPTICAL DEVICE AND METHOD OF DRIVING THE SAME

Samsung Display Co., Ltd....


20. A method of driving a optical device, comprising:displaying a first image on a first area of a display device during a first period;
outputting the first image as first polarized light during the first period;
reflecting a first image of the first polarized light through a first polarizing mirror during the first period;
displaying a fifth image on the first area of the display device during a second period;
outputting the fifth image as second polarized light during the second period; and
reflecting a fifth image of the second polarized light through a second polarizing mirror during the second period.

US Pat. No. 11,067,818

DISPLAY DEVICE

Japan Display Inc., Mina...


1. A display device comprising:an optical member including a first main surface, and a second main surface on a side opposite to the first main surface, the optical member configured to form an image on a side of the second main surface with light incident from the first main surface;
a reflective member including a reflective surface opposed to the first main surface; and
a display portion located between the optical member and the reflective member, wherein
the reflective member is arranged parallel to the optical member;
the display portion includes a display area where an image is displayed;
the display area includes a third end portion opposed to the reflective member, and a fourth end portion opposed to the optical member; and
the third end portion is in contact with the reflective surface.

US Pat. No. 11,067,817

OPTICAL ELEMENT ROTATING DEVICE AND STAGE LIGHT OPTICAL DEVICE

GUANGZHOU HAOYANG ELECTRO...


1. An optical element rotating device, comprising:a base body,
a ball holder,
a ball,
a ball pressing plate,
an elastic element, and
a cover,
wherein the ball holder is sleeved on the base body; and the ball, the ball pressing plate, the elastic element and the cover are sequentially positioned between the ball holder and the base body from bottom to top,
wherein a first ball groove is arranged at a position, corresponding to the ball, on a peripheral sidewall of the base body.

US Pat. No. 11,067,816

SCATTERING STED LITHOGRAPHY

Vathys, Inc., Portland, ...


1. A lithography system comprising:a first light source, configured to generate excitation laser beams;
a second light source, configured to generate depletion laser beams;
one or more scattering mediums configured to receive one or more of the excitation laser beams and depletion laser beams and scramble the laser beams;
one or more wave-front shaping modules, configured to receive the scrambled laser beams, descramble the laser beams and generate one or more focused laser beams;wherein a first scattering medium receives the excitation laser beams and a first wave front-shaping module receives respective scrambled laser beams from the first scattering medium to generate one or more first focused laser beams;
wherein a second scattering medium receives the depletion laser beams and a second wave front-shaping module receives respective scrambled laser beams from the second scattering medium to generate one or more second focused laser beams; and

a numerical aperture device configured to receive the one or more focused laser beams and generate a second focused beam on a substrate.

US Pat. No. 11,067,815

APPARATUS FOR BEAM SHAPING OF LASER RADIATION

LIMO GmbH, Dortmund (DE)...


1. An apparatus for beam shaping of laser radiation in the form of ultra short pulses, the apparatus comprising:an optically functional transformation boundary surface that allows the laser radiation to pass at least partially, such that a profile of the laser radiation is transformed into a top-hat profile;
an achromatic optical device comprising a first substrate having a first Abbe number and a second substrate connected to the first substrate and having a second Abbe number that is different from the first Abbe number, the first and second substrates being arranged to allow the laser radiation to at least partially pass through the first and second substrates in succession, wherein the optically functional transformation boundary surface is disposed on one of each of the first and second substrates, such that the optically functional transformation boundary surface and the achromatic optical device together comprise a monolithic component.

US Pat. No. 11,067,814

SMART HEAD-MOUNTED DISPLAY ALIGNMENT SYSTEM AND METHOD

. ELBITSYSTEMS LTD., Hai...


1. A system comprising a processing resource configured to:obtain a first indication of a confirmation, by an operator of a platform, of an alignment of one symbol of a first plurality of symbols with a second symbol as viewed in a head-mounted display of a head-mounting worn by the operator, the first plurality of symbols being projected by at least one optical apparatus disposed on the platform to a plurality of different viewing angles, the second symbol being projected onto the head-mounted display by a projection unit of the head-mounted display;
determine which symbol of the first plurality of symbols was aligned by the operator with the second symbol yielding a first symbol of the first plurality of symbols, the first symbol having first orientation data, the second symbol having second orientation data; and
perform an alignment of the head-mounting and the head-mounted display at least based on the first orientation data and the second orientation data.

US Pat. No. 11,067,813

HEAD-MOUNTED DISPLAY DEVICE

HTC Corporation, Taoyuan...


1. A head-mounted display device, comprising:a body, corresponded to eyes of a user;
a strap, connected to the body, adapted to surround a head of the user;
two first elastic parts and two second elastic parts, disposed on the strap or the body, wherein the two first elastic parts are respectively disposed on a left side of the body and a right side of the body, and the two second elastic parts are respectively disposed on the left side of the body and the right side of the body;
two first soft pads, disposed on the first elastic parts, wherein the first soft pads are respectively and only configured to lean against a left cheek bone of the user and a right cheek bone of the user; and
two second soft pads, disposed on the second elastic parts, wherein the second soft pads are respectively configured to be on a bottom left side of the body and a bottom right side of the body, wherein the second soft pads are respectively configured to lean against a section between the left first soft pad and a left ear of the user and a section between the right first soft pad and a right ear of the user, and the first soft pads and the second soft pads are separated from each other.

US Pat. No. 11,067,812

WAVEGUIDE DISPLAY ELEMENT WITH REFLECTOR SURFACE

DISPELIX OY, Espoo (FI)


1. A waveguide display element comprising:a waveguide comprising two opposing main surfaces,
a first diffractive optical element arranged at a first location of the waveguide,
a second diffractive optical element arranged at a second location of the waveguide, and
a plurality of curved reflector surfaces including at least one reflector surface extending between said main surfaces and adapted to reflect light rays propagating within the waveguide, wherein the at least one reflector surface is adapted to redirect light rays from the first diffractive optical element to the second diffractive optical element, wherein: the at least one reflector surface is curved when inspected in the plane of said main surfaces, and
the plurality of curved reflector surfaces are of the same or different kinds and arranged between the same or different first and second diffractive optical elements.

US Pat. No. 11,067,811

VOLUME BRAGG GRATINGS FOR NEAR-EYE WAVEGUIDE DISPLAY

FACEBOOK TECHNOLOGIES, LL...


1. A waveguide display, comprising:a substrate transparent to visible light;
a coupler configured to couple display light into the substrate such that the display light propagates within the substrate through total internal reflection;
a first multiplexed volume Bragg grating (VBG) on a first region of the substrate; and
a second multiplexed VBG only on a second region of the substrate, the second region different from the first region, and the second multiplexed VBG overlapping with the first multiplexed VBG in at least a see-through region of the waveguide display,
wherein the first multiplexed VBG is configured to diffract the display light to two or more regions of the second multiplexed VBG along a first direction, and
wherein the second multiplexed VBG is configured to diffract the display light to two or more regions of an eyebox of the waveguide display along a second direction.

US Pat. No. 11,067,810

HEAD-MOUNTED DISPLAY APPARATUS

SEIKO EPSON CORPORATION, ...


1. A head-mounted display apparatus comprising:an imaging light generating device;
a first deflection element including a first deflection section configured to deflect, in a first direction, imaging light emitted from the imaging light generating device and a second deflection section configured to deflect, in a second direction intersecting with the first direction, the imaging light deflected by the first deflection section;
a first diffraction element configured to diffract the imaging light deflected by the second deflection section; and
a second diffraction element configured to diffract the imaging light diffracted by the first diffraction element to form an exit pupil, wherein
when a principal ray of imaging light emitted from a center of a display region of the imaging light generating device and to be incident on the first deflection element is taken as a central principal ray,
the central principal ray coincides with a normal line of a virtual plane located between the imaging light generating device and the first deflection section, and when a direction that the first direction is projected on the virtual plane is taken as a third direction of the virtual plane and a direction orthogonal to the third direction is taken as a fourth direction,
a plane in the virtual plane through which the principal ray of imaging light emitted from an entire region of the display region passes is taken as a principal ray passing plane,
a principal ray configured to pass through a point at a center of the principal ray passing plane in the third direction and at a first end of the principal ray passing plane in the fourth direction is taken as a first principal ray and a principal ray configured to pass through a point at a center of the principal ray passing plane in the third direction and at a second end of the principal ray passing plane in the fourth direction is taken as a second principal ray,
a plane surrounded by the principal ray passing plane, the first principal ray, the second principal ray, and the first deflection section is taken as a first plane, and
a plane surrounded by the second deflection section, the first principal ray, the second principal ray, and the first diffraction element is taken as a second plane,
the first plane overlaps with at least a part of the second plane when viewed from the third direction and does not overlap with the second plane when viewed from the fourth direction.

US Pat. No. 11,067,809

SYSTEMS AND METHODS FOR MINIMIZING EXTERNAL LIGHT LEAKAGE FROM ARTIFICIAL-REALITY DISPLAYS

Facebook Technologies, LL...


1. A display system, comprising:a display element that is transparent and comprises a plurality of pixels that are individually controllable;
a light-blocking shutter that overlaps at least a portion of a surface of the display element that faces an external environment;
a display-driving subsystem that:displays images visible to a user via display light emitted from one of the plurality of pixels included in the display element during active display intervals, the one of the plurality of pixels being pulsed multiple times within a burst sub-period of consecutive cycle periods; and
refrains from displaying the images to the user via any of the plurality of pixels included in the display element during inactive display intervals, each of the plurality of pixels remaining inactive within an OFF sub-period of the consecutive cycle periods; and

a shutter-driving subsystem that:alternately switches the light-blocking shutter between a blocking state in which light transmission through the light-blocking shutter is blocked and a pass-through state in which light transmission through the light-blocking shutter is enabled;
maintains the light-blocking shutter in the blocking state during the entirety of the burst sub-period in which the one of the plurality of pixels is pulsed multiple times; and
maintains the light-blocking shutter in the pass-through state during the entirety of the OFF sub-period in which each of the plurality of pixels remains inactive; and

wherein each of the consecutive cycle periods consists of the burst sub-period and the OFF sub-period.

US Pat. No. 11,067,808

DIFFRACTIVE OPTICAL ELEMENTS WITH MITIGATION OF REBOUNCE-INDUCED LIGHT LOSS AND RELATED SYSTEMS AND METHODS

Magic Leap, Inc., Planta...


1. An optical device comprising;a first waveguide comprising a reflective diffractive optical element, the reflective diffractive optical element comprising:protrusions on a surface of the first waveguide;
an interface layer on the protrusions; and
a reflective layer on the interface layer,
wherein the interface layer and the reflective layer are conformal to the protrusions.


US Pat. No. 11,067,807

SMART GLASSES

Chiun Mai Communication S...


1. A smart glass comprising:a plurality of lenses;
a frame structure connected to the plurality of lenses;
a display module disposed in at least one of the plurality of lenses; the display module having a plurality of display units arranged in a matrix; each display unit comprising at least one micro LED unit, and at least one first optical photoelectric conversion unit for converting ambient or solar light into electric power;
a battery disposed in the frame structure and electrically connected to the display module;

anda processor electrically connected to the display module and the battery;
wherein each display unit further comprises an optical sensor;
wherein the smart glasses further comprises a filter control module; the filter control module is disposed in the frame structure, and is electrically connected to the processor; the processor controls the at least one micro LED unit in one of the display units to display images, and controls the at least one micro Led unit in the other display units to emit non-visible light through the filter control module, such that the micro LED unit can cooperate with the optical sensor to perform retinal scanning.

US Pat. No. 11,067,806

FOVEATED DISPLAY FOR AUGMENTED REALITY

NVIDIA Corp., Santa Clar...


1. An augmented reality display system comprising:an inset display;
a half mirror;
a concave half mirror;
a waveguide comprising the half mirror and the concave half mirror, the waveguide converting an inset image generated by the inset display into a foveal inset; and
the inset display configured to respond to a control signal to set the foveal inset to a portion of a field-of-view of a user of the augmented reality display system.

US Pat. No. 11,067,805

SYSTEMS AND METHODS FOR OPERATING A DISPLAY SYSTEM BASED ON USER PERCEPTIBILITY

Magic Leap, Inc., Planta...


1. A display system comprising:a wearable display configured to present virtual content to a user;
an imaging device facing away from the wearable display, the imaging device configured to capture images; and
at least one processor communicatively coupled to the wearable display and the imaging device, the at least one processor configured to:obtain an image of an eye of the user captured by the imaging device;
determine whether a threshold measure or more of motion blur is exhibited in one or more regions of the image, wherein the threshold measure of the motion blur is associated with a saccade; and
in response to a determination that the threshold measure or more of motion blur is exhibited in one or more regions of the image, change a wavefront divergence of light outputted by the wearable display to form the virtual content while the threshold measure or more of motion blur is exhibited in the one or more regions of the image.


US Pat. No. 11,067,804

VIRTUAL IMAGE DISPLAY DEVICE

SEIKO EPSON CORPORATION, ...


1. A virtual image display device, comprising:an image display element configured to emit image light;
a relay optical system configured to generate an intermediate image of the image light emitted from the image display element; and
an ocular optical element configured to reflect the intermediate image toward a position assumed to be a position of an eye of an observer to generate an enlarged virtual image, wherein
the relay optical system includes a prism, the prism including
a first bending surface including a bending surface and serving as an incident surface,
a second bending surface including a bending surface and serving as an emission surface, the first bending surface and the second bending surface opposing each other without intersecting each other, and
a reflecting surface configured to reflect, toward the second bending surface, the image light incident from the first bending surface.

US Pat. No. 11,067,803

METHOD AND APPARATUS FOR INDEPENDENT CONTROL OF FOCAL VERGENCE AND EMPHASIS OF DISPLAYED AND TRANSMITTED OPTICAL CONTENT

Atheer, Inc., Santa Clar...


1. An apparatus, comprising:a first lens array located a first distance from an eye of a user, the first lens array being adapted to:receive, at a first optic of the first lens array, environment content from a location in front of the first lens array relative to the eye; and
alter a focal vergence of the environment content;

a see-through display located a second distance from the eye, the see-through display being adapted to:receive the environment content from the first optic of the first lens array; and
deliver the environment content and display content to a second lens array; and

the second lens array located a third distance from the eye, the second lens array being adapted to:receive, at a first optic of the second lens array, the environment content and the display content from the see-through display;
alter the focal vergence of the environment content; and
alter a focal vergence of the display content, wherein the focal vergence of the display content is alterable substantially independent of the focal vergence of the environment content.


US Pat. No. 11,067,802

FULL HUMAN FIELD OF VIEW (FOV) WRAP AROUND HEAD-MOUNTED DISPLAY APPARATUS WITH A CONVEX DISPLAY DEVICE

LOCKHEED MARTIN CORPORATI...


1. A head-mounted display (HMD) apparatus comprising:at least one optical system, each optical system comprising a lens having a reflective optical surface and a head-mounted display device associated with and distanced from the reflective optical surface, the head-mounted display device comprising:
a substrate having a horizontal convex curvature with a curved geometric profile which continuously curves with smooth transitions in a horizontal dimension,
the curved geometric profile dimensioned to curve around a respective temple of a wearer and extend in a direction toward a respective ear of the wearer,
the substrate comprising a plurality of pixel elements arranged along the horizontal convex curvature and being controlled to selectively radiate light representative of computer-generated content (CGC) to the associated reflective optical surface such that those selected pixel elements for display emanate rays of the light for subsequent reflection and collimation from the reflective optical surface in a direction toward a respective one eye of the wearer, the horizontal convex curvature of the substrate being structured to track a curvature of the lens.

US Pat. No. 11,067,801

HEAD-MOUNTED DISPLAY DEVICE

Samsung Display Co., Ltd....


1. A head-mounted display device, comprising:a display comprising a substrate and a plurality of display elements disposed on the substrate;
a first polarizing layer disposed on the display;
a reflective layer disposed on the first polarizing layer;
a light-separating layer disposed on the reflective layer;
a lens disposed on the light-separating layer; and
a second polarizing layer disposed on a first surface of the lens,
wherein the light-separating layer is disposed between the reflective layer and the lens and is configured to transmit some of a first polarized light that has passed through the first polarizing layer and reflect a remainder of the first polarized light, and
wherein the light separating layer faces a second surface of the lens opposite the first surface.

US Pat. No. 11,067,800

IMAGE DISPLAY DEVICE

SAMSUNG ELECTRONICS CO., ...


1. An image display device comprising:an optical scanner configured to scan light emitted from a light source;
a parallel light generator configured to generate the scanned light as parallel light;
a prism configured to refract the parallel light; and
a light direction changer comprising a plurality of points whereon the parallel light refracted and output by the prism is incident, and configured to reflect or diffract the parallel light and change a traveling direction of the parallel light,
wherein the prism is provided on a path of each light traveling from the optical scanner to the light direction changer, and is configured to adjust an optical path difference of parallel light incident on each of the plurality of points of the light direction changer, and
wherein the prism comprises a first surface on which the parallel light is incident and a second surface through which the parallel light refracted is output external to the prism toward the light direction changer, and the first surface and the second surface are configured to form an apex angle therebetween.

US Pat. No. 11,067,799

DISPLAY DEVICE

SEIKO EPSON CORPORATION, ...


1. A display device configured to deflect light emitted from a light source section, comprising:a first diffraction element;
a second diffraction element that is disposed in an optical path from the light source section to the first diffraction element;
an intermediate image generation lens provided in the optical path between the second diffraction element and the first diffraction element, generation of an intermediate image being performed by the intermediate image generation lens and being generated between the second diffraction element and the first diffraction element; and
a scanning element provided in the optical path between the second diffraction element and the first diffraction element, the scanning element provided closer to the second diffraction element than the intermediate image generation lens is to the second diffraction element,
wherein the second diffraction element diffracts light from the light source section toward the first diffraction element, and the first diffraction element receives the light diffracted by the second diffraction element,
wherein the first diffraction element has a concave curved surface configured to face an eye of an observer, and
wherein the first diffraction element is thinner and larger than the second diffraction element, and the first diffraction element has wider wavelength widths at a half value in diffraction efficiency with respect to the light in a first, second and third wavelength range than the second diffraction element, the first, second and third wavelength ranges being different from each other.

US Pat. No. 11,067,798

HEAD-UP DISPLAY DEVICE

DENSO CORPORATION, Kariy...


1. A head-up display device that displays a virtual image by projecting a picture to a projection component to be viewable by an occupant in a movable body, the head-up display device comprising:a light source part which emits light source light;
a liquid crystal panel integrally having a pair of polarizers for liquid crystals and a liquid crystal layer disposed between the polarizers in a stacked state, to form the picture by making a part of the light source light to pass through;
an additional polarizer arranged in an optical path between the light source part and the liquid crystal panel;
a condenser lens arranged in the optical path between the light source part and the liquid crystal panel to condense the light source light;
a field lens arranged in the optical path between the light source part and the liquid crystal panel, the field lens including a Fresnel lens having a composite optical surface; and
a diffusion part arranged in the optical path between the light source part and the liquid crystal panel to diffuse the light source light, wherein
the additional polarizer and the pair of polarizers for liquid crystals have properties of transmitting polarized light along a transmission axis and shielding polarized light along a shielding axis which intersects the transmission axis,
the additional polarizer is arranged such that the transmission axis and the shielding axis respectively match with those of a polarizer for liquid crystals adjacent to the light source part, of the pair of polarizers for liquid crystals,
the additional polarizer is a reflection type polarizer which reflects the polarized light along the shielding axis toward the light source part,
the condenser lens, the field lens, the diffusion part, and the additional polarizer are arranged in this order from a side of the light source part in the optical path between the light source part and the liquid crystal panel, and
the condenser lens has a refraction side facing the liquid crystal panel, and the refraction side of the condenser lens has a plurality of smooth convex shapes between which no flat surface is located.

US Pat. No. 11,067,797

SYSTEMS AND METHODS FOR AUGMENTED REALITY

Magic Leap, Inc., Planta...


1. An augmented reality system, comprising:a light source configured to generate a virtual light beam; and
a planar waveguide having an entry portion, an exit portion, and a surface having a diverter disposed adjacent thereto,
wherein the planar waveguide is configured to propagate light beams that are incident on the planar waveguide at angles greater than or equal to a critical angle by total internal reflection (TIR), and allow light beams that are incident on the planar waveguide at angles less than the critical angle to pass through the light guiding optical element,
wherein the light source and the planar waveguide are configured such that the virtual light beam:(a) enters the planar waveguide through the entry portion,
(b) propagates through the planar waveguide by TIR, and
(c) exits the planar waveguide through the exit portion,

wherein the diverter is tuned to selectively:prevent real-world light beams that are incident on the diverter at angles greater than or equal to a predetermined angle of incidence from reaching the surface of the planar waveguide, and
allow real-world light beams that are incident on the diverter at angles less than the angle of incidence to pass through the diverter to the surface of the planar waveguide, such that artifacts from real world objects at respective high angles of incidence relative to the diverter are reduced, and

wherein tuning the diverter comprises selecting a physical dimension and a chemical makeup of the diverter.

US Pat. No. 11,067,796

INFORMATION DISPLAY SYSTEM FOR A VEHICLE

MAGNA ELECTRONICS INC., ...


1. A display system of a vehicle, said display system comprising:a display device disposed in a vehicle and operable to display heads up information for viewing by a driver of the vehicle;
said display device comprising a mirror, a display screen and a cooling device;
wherein said display screen comprises a backlit display screen that is backlit by a backlight;
wherein said mirror is pivotally mounted at a base plate and is pivotable via a pin of a mounting arm of said mirror moving along a spiral groove of a gear element when said gear element is rotated;
wherein said pin is urged towards a side wall of said spiral groove to limit play of said mirror relative to said base plate;
wherein said cooling device comprises a cooling body that draws heat from said backlight of said display screen;
wherein said cooling body comprises a backlight portion that is in thermal connection with said backlight and a heat dissipating portion disposed in a cooling housing;
wherein said cooling housing has a passageway therethrough, and wherein said heat dissipating portion of said cooling device is disposed in the passageway and said backlight portion of said cooling device is disposed outside of the passageway of said cooling housing;
wherein said cooling device comprises a heat plate disposed in the passageway of said cooling housing and in thermal connection with said cooling body;
wherein said heat plate is disposed along at least one wall of said cooling housing and partially circumscribes the passageway; and
wherein terminal ends of said heat plate are in thermal connection with said heat dissipating portion of said cooling device.

US Pat. No. 11,067,795

EYEBALL TRACKING SYSTEM AND EYEBALL TRACKING METHOD

HUAWEI TECHNOLOGIES CO., ...


1. An eyeball tracking system, comprising an illumination light source, an entrance pupil optical apparatus, a beam scanner, a photoelectric detector, and a controller, wherein the controller is electrically connected to the photoelectric detector;the illumination light source is to transmit an illumination light ray to the beam scanner;
the beam scanner is to project the illumination light ray onto the entrance pupil optical apparatus;
the entrance pupil optical apparatus is to reflect, reproduce, or refract the illumination light ray, so that the illumination light ray illuminates an eyeball;
the photoelectric detector is to receive a request to collect a receive optical power value of an eyeball reflection light ray within a detection cycle, collect the receive optical power value of the eyeball reflection light ray within the detection cycle, and send the receive optical power value to the controller, wherein the eyeball reflection light ray is a light ray reflected by the eyeball when the illumination light ray illuminates the eyeball; and
the controller is to receive the receive optical power value sent by the photoelectric detector, determine, based on the receive optical power value, an optical power reference value that satisfies a specified functional relationship with the receive optical power value, and determine an eyeball line-of-sight direction that matches the optical power reference value as a current gaze direction of the eyeball based on a prestored one-to-one matching relationship between a plurality of eyeball gaze directions and a plurality of optical power reference values.

US Pat. No. 11,067,794

SCAN MIRROR SYSTEMS AND METHODS


1. A system to scan a field of view (FOV) with light beams, comprising:a first scanning mirror arrangement and a second scanning mirror arrangement, wherein each scanning mirror arrangement comprises a mirror having one or more hinges that are coupled to a drive mechanism that is operable to twist the one or more hinges resulting in an extended twist to the mirror; and
one or more light sources configured to direct a first light beam and a second light beam at each mirror of each scanning mirror arrangement, wherein a direction of the first light beam toward each mirror differs from another direction of the second light beam toward each mirror, wherein the first and the second light beams, upon twisting of each mirror, are configured to separately scan a combined FOV in front of a vehicle for each scanning mirror arrangement while positioned at separate locations providing the combined FOV, and wherein each mirror twists from a first orientation to a second orientation for separately scanning the combined FOV in front of the vehicle at a side view angle that is greater than an angle of the first orientation.

US Pat. No. 11,067,793

MEMS REFLECTOR SYSTEM WITH TRAJECTORY CONTROL

MURATA MANUFACTURING CO.,...


1. A scanning microelectromechanical reflector system, comprising:a mobile reflector mass which defines a reflector plane, and a mobile frame mass which defines a mobile frame plane so that the mobile frame mass surrounds the mobile reflector mass when the reflector plane coincides with the mobile frame plane, wherein the mobile frame mass is suspended from a fixed frame which defines a fixed frame plane and at least partly surrounds the mobile frame mass in the fixed frame plane when the mobile frame plane coincides with the fixed frame plane;
a pair of first torsion beams aligned on a first axis in the mobile frame plane, whereby the pair of first torsion beams suspends the mobile reflector mass from the mobile frame mass so that the mobile reflector mass and the mobile frame mass form a mobile mass system;
one or more first actuation units connected to the mobile mass system and to the fixed frame, configured to convert one or more first drive voltage signals into forces which drive the mobile mass system into oscillating resonance tilt motion about the first axis;
a control unit configured to apply to the one or more first actuation units one or more first drive voltage signals which comprise a first drive signal component with a first drive signal frequency and a first drive signal phase which correspond to common mode resonance oscillation in the mobile mass system, and the first drive voltage signal also comprises a second drive signal component with a second drive signal frequency and a second drive signal phase which correspond to differential mode resonance oscillation in the mobile mass system,

wherein the second drive signal frequency is a second or third harmonic of the first drive signal frequency,
and the mobile frame mass is suspended from the fixed frame by four suspension beams, and the system comprises one or more second actuation units connected to the four suspension beams,
and the control unit is configured to apply to the one or more second actuation units one or more second drive voltage signals which comprise a third drive signal component with a third drive signal frequency, which the one or more second actuation units convert into forces which drive the mobile mass system into oscillating resonance tilt motion about a second axis in the fixed frame plane, and
wherein the second axis is perpendicular to the first axis when the mobile frame plane coincides with the fixed frame plane,
and each first actuation unit and each second actuation unit comprises at least one of said four suspension beams which comprises a piezoelectric transducer configured to bend the suspension beam out of the fixed frame plane, and each actuation unit is attached from a first fixing point to the fixed frame and from a second fixing point to the mobile frame mass,
and the number of actuation units is four, and the four second fixing points on the mobile frame mass define a rectangle in the mobile frame plane, and the rectangle is mirror-symmetric in relation to the first axis.

US Pat. No. 11,067,792

TWO-DIMENSIONAL OPTICAL SCANNING MIRROR DEVICE, MANUFACTURING METHOD FOR SAME, TWO-DIMENSIONAL OPTICAL SCANNER AND IMAGE PROJECTOR

NATIONAL UNIVERSITY CORPO...


1. A two-dimensional optical scanning mirror device, comprising:a substrate;
a movable mirror portion supported on the substrate in such a manner that two-dimension optical scanning is possible;
a hard magnetic thin film provided in the movable mirror portion; and
a magnetic field generator that includes at least an alternating magnetic field generator for driving the movable mirror portion, wherein
the hard magnetic thin film has a magnetization direction in a direction of a film plane, and
the ratio of the magnetic field generated by the magnetic field generator relative to the coercive force of the hard magnetic thin film is 0.2 or lower, and the coercive force of the hard magnetic thin film is 100 kA/m or greater.

US Pat. No. 11,067,791

WEARABLE DEVICE FOR PROTECTING DISPLAY AND METHOD THEREOF

Samsung Electronics Co., ...


1. A wearable device comprising:at least one lens;
a display;
at least one sensor; and
at least one processor, wherein the at least one processor is configured to:identify a level of light sensed through the at least one sensor; and
control the display to display a notification indicating that the wearable device is in a situation in which the display is capable of being damaged by the light when the level of the light satisfies a preset condition.


US Pat. No. 11,067,789

BORESCOPE WAND PROTECTION SYSTEM

GENERAL ELECTRIC COMPANY,...


1. A borescope, comprising:a borescope wand comprising a base portion, an articulating portion, and a lens end;
a single outermost surface of the borescope wand extending continuously from the base portion to the lens end, the single outermost surface of the borescope wand including a base portion outermost surface extending to the articulating portion and an articulating portion outermost surface extending from the base portion to the lens end;
a lens positioned in the lens end of the borescope wand;
a sleeve positioned externally around the articulating portion outermost surface of the borescope wand, the sleeve being spaced apart from the lens; and
an end cap defining a passage extending therethrough from a first opening to a second opening, the end cap comprising a spherical portion that defines a mounting cavity positioned radially outwardly from the passage, wherein the lens end of the borescope wand extends through the first opening and is positioned within the passage such that the lens is positioned between the first opening and the second opening.

US Pat. No. 11,067,788

BRIGHT RELAY OPTICAL SYSTEM, AND OPTICAL SYSTEM FOR RIGID ENDOSCOPE AND RIGID ENDOSCOPE USING THE SAME

OLYMPUS CORPORATION, Tok...


1. A relay optical system, comprising:an object-side lens which is disposed nearest to an object;
an image-side lens which is disposed nearest to an image; and
a cemented lens having a positive refractive power,
wherein:
the object-side lens has a positive refractive power and is disposed such that a convex surface is directed toward an object side,
the image-side lens has a positive refractive power, and is disposed such that a convex surface is directed toward an image side,
a plurality of the cemented lenses are disposed between the object-side lens and the image-side lens,
a diffractive optical element is disposed between the object-side lens and the image-side lens, and
the following conditional expression (1) is satisfied:0.04
where,
Gce denotes a smallest interval of intervals of adjacent cemented lenses, and
Drel denotes a distance from an object plane up to an image plane of the relay optical system.

US Pat. No. 11,067,787

MICROSCOPE MOUNTED INFRARED DIGITAL THERMAL IMAGE SYSTEM

MICROSANJ, LLC, Santa Cl...


1. An optical microscope, comprising:an IR objective, configured to be mounted to an objective interface;
a non-IR objective, configured to be mounted to the objective interface and further configured to receive visible light from a specimen;
an IR camera disposed in the IR objective; and
the IR camera configured to receive light in the range of IR and capture images from the specimen disposed under the IR objective while the specimen remains stationary between the non-IR objective receiving visible light and the IR objective receiving IR light.

US Pat. No. 11,067,786

ARTIFACT REGULATION METHODS IN DEEP MODEL TRAINING FOR IMAGE TRANSFORMATION

Leica Microsystems Inc., ...


1. A computerized method of artifact regulation in deep model training for image transformation, the method comprising the steps of:a) inputting a training data, a validation data, a similarity loss function, an artifact regulation loss function and a weight of loss functions and an initial deep model into electronic storage means; and setting a deep model to the initial deep model;
b) performing one cycle of deep model training by computing means to update the deep model using the training data, the validation data, the similarity loss function, the artifact regulation loss function and the weight to generate similarity loss and artifact regulation loss and an updated deep model;
c) performing a training evaluation using the similarity loss and the artifact regulation loss from step b) to generate a training readiness output selected from a group consisting of (1) weight update, (2) continue and (3) stop;
d) in response to the training readiness output from step c) being weight update, performing a weight updating to update the weight, setting the deep model to the updated deep model and repeating steps b) through c);
e) in response to the training readiness output from step c) being continue, setting the deep model to the updated deep model and repeating steps b) through c); and
f) in response to the training readiness output from step c) being stop, terminating the method and outputting the updated deep model generated in step b).

US Pat. No. 11,067,785

METHOD FOR GENERATING FLUORESCENT PHOTOGRAPH USING FLUORESCENCE MICROSCOPE

Carl Zeiss Microscopy Gmb...


1. A method for generating a fluorescent photograph using a fluorescence microscope, the fluorescence microscope being provided with a plurality of optical channels, each optical channel corresponding to the light of a different wavelength, the method comprises:separately snapping fluorescence images produced by illuminating the sample with light from a plurality of optical channels of the fluorescence microscope;
then merging each of the fluorescent images into one image to generate a fluorescent photograph of the sample; characterized in that, after a fluorescence image generated by the light of an optical channel is snapped, the fluorescent image generated by the light of said optical channel can be re-snapped and the original fluorescent image can be replaced with the re-snapped fluorescent image, without re-snapping a fluorescent image generated by the light of other optical channel which has already been snapped.

US Pat. No. 11,067,784

SYSTEM AND TECHNIQUES FOR DETECTING FLUORESCING PARTICLES ON A TARGET

BAE Systems Information a...


1. A system for detecting fluorescing particles on a target, comprising:a viewing device configured to view the target;
a light subsystem configured to illuminate the target and having a white light source and a blue light source integrated into a single unitary housing, wherein the blue light source emits light at a first wavelength towards the target adapted to excite particles on the target at a fluorescent feedback second wavelength generated in response to particle excitation from the blue light source, wherein the fluorescent feedback second wavelength is greater than the first wavelength;
a passive cooling subsystem configured to prevent overheating of the system without expending additional energy resources; and
at least one filter in operative communication with the viewing device having a selected filter wavelength configured to allow light to pass that is greater than the first wavelength; wherein the fluorescing particles include an organic component that effectuates the fluorescent feedback second wavelength, and wherein the fluorescing particles that include the organic component are part of the target and are not a fluorescing agent, fluorescent material, or other fluorescing additive that is added to or mixed with the target.

US Pat. No. 11,067,783

LIGHT SHEET MICROSCOPE AND METHOD FOR IMAGING A SAMPLE BY LIGHT SHEET MICROSCOPY

LEICA MICROSYSTEMS CMS GM...


1. A light sheet microscope, comprising:an illumination optical system configured to generate a light sheet in an intermediate image space;
a transport optical system, which is telecentric on both an object side and an image side, configured to image the light sheet generated in the intermediate image space into a sample and to image a region of the sample illuminated by the light sheet as an intermediate image into the intermediate image space;
a detection optical system configured to image the intermediate image generated in the intermediate image space onto a detector, the optical axes of the illumination optical system, the transport optical system and the detection optical system intersecting one another in the intermediate image space; and
a scanning element, which is arranged in the transport optical system and through which the light sheet is moveable in the sample transversely to the optical axis of the transport optical system.

US Pat. No. 11,067,782

MICROSCOPE OBJECTIVE

OLYMPUS CORPORATION, Tok...


1. A dry microscope objective, comprising, in order from an object side:a first lens group; and
a second lens group,
wherein the first lens group includes, in order from the object side:a first cemented lens with a concave surface facing the object side;
a first single lens having a positive refractive power;
a second single lens having a positive refractive power; and
a second cemented lens with a concave surface facing an image side,

wherein the second lens group includes, in order from the object side:a third cemented lens with a concave surface facing the object side; and
a third single lens having a positive refractive power,

wherein each of the first cemented lens, the second cemented lens, and the third cemented lens is a cemented doublet lens that combines one positive lens with one negative lens, and
wherein the microscope objective satisfies conditional expressions of:0.31?NA<1??(1);
2.2?H/f?3.3??(2); and
0 where NA is a numerical aperture of the microscope objective on the object side, f is a focal length of the microscope objective at e-line, H is a distance from an object surface to a lens surface of the second lens group closest to an image, a is a sum of air-gap distances in the first lens group, and b is a thickness of a negative lens included in the second cemented lens.


US Pat. No. 11,067,781

MICROSCOPE AND METHOD FOR LOCALIZING FLUORESCENT MOLECULES IN THREE SPATIAL DIMENSIONS

LEICA MICROSYSTEMS CMS GM...


1. A microscope, comprising:illumination optics for fluorescence excitation of point light sources of a sample;
detection optics; and
a camera having a sensor,
wherein a density of the point light sources is kept low so as to minimize a crossover of point light sources that are behind or close to one another in each image captured by the camera, and
wherein a means for subdividing a detection aperture into individual sub-apertures is provided in a beam path of the detection optics such that images generated by the individual sub-apertures on the sensor of the camera depict an object volume from different spatial directions.

US Pat. No. 11,067,780

ZOOM LENS, OPTICAL APPARATUS AND METHOD FOR MANUFACTURING THE ZOOM LENS

Nikon Corporation, Tokyo...


1. A zoom lens, comprising: in order from an object, a first lens group having positive refractive power; a second lens group having negative refractive power; a third lens group having positive refractive power; a fourth lens group having negative refractive power; and a fifth lens group having positive refractive power, whereinupon zooming from a wide-angle end state to a telephoto end state,
a distance between each of lens groups and a lens group adjacent thereto changes to satisfy the following conditional expression:2.90<|MV5/MV2|<11.50

where,
MV5 denotes, upon zooming from the wide-angle end state to the telephoto end state, a moving amount of the fifth lens group with an image surface as a reference; and
MV2 denotes, upon zooming from the wide-angle end state to the telephoto end state, a moving amount of the second lens group with the image surface as a reference, and
wherein the following conditional expression is satisfied:1.20
where,
?2t denotes a magnification of the second lens group in the telephoto end state; and
?2w denotes a magnification of the second lens group in the wide-angle end state.

US Pat. No. 11,067,779

ZOOM LENS AND IMAGE PICKUP APPARATUS INCLUDING THE SAME

CANON KABUSHIKI KAISHA, ...


1. A zoom lens comprising a plurality of lens units, an interval between each pair of adjacent lens units among the plurality of lens units being changed during zooming,the plurality of lens units consisting of, in order from an object side to an image side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, and a rear lens group including at least one lens unit,
wherein the following conditional expressions are satisfied:0.70 0.36 0.02 0.01 10
where F represents a minimum F-number of an entire system of the zoom lens during zooming from a wide angle end to a telephoto end, LRW represents an interval, at the wide angle end, between a lens surface on the object side of a lens arranged closest to the object side of the rear lens group and a lens surface on the image side of a lens arranged closest to the image side of the rear lens group, LW represents a distance from a lens surface on the object side of a lens arranged closest to the object side of the zoom lens to an image plane at the wide angle end, LRAW represents a widest lens interval having a widest interval at the wide angle end among lens intervals included in the rear lens group, BKW represents an air-equivalent distance from a lens surface on the image side of a lens arranged closest to the image side of the zoom lens to the image plane at the wide angle end, and N represents a number of lenses included in the rear lens group.

US Pat. No. 11,067,778

IMAGING OPTICAL LENS ASSEMBLY, IMAGING APPARATUS AND ELECTRONIC DEVICE

LARGAN PRECISION CO., LTD...


1. An imaging optical lens assembly, comprising seven lens elements, the seven lens elements being, in order from an object side to an image side: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element;wherein the first lens element has positive refractive power; the second lens element has negative refractive power; the fourth lens element has an object-side surface being convex in a paraxial region thereof; the fifth lens element has negative refractive power; the seventh lens element has an image-side surface being concave in a paraxial region thereof, the image-side surface of the seventh lens element has at least one critical point in an off-axis region thereof, and the image-side surface and an object-side surface of the seventh lens element are both aspheric;
wherein a focal length of the imaging optical lens assembly is f, a curvature radius of an image-side surface of the fifth lens element is R10, an Abbe number of the second lens element is V2, an Abbe number of the third lens element is V3, an axial distance between the first lens element and an image surface is TL, a maximum image height of the imaging optical lens assembly is ImgH, a highest refractive index of a lens element among the seven lens elements is Nmax, and the following conditions are satisfied:0?f/R10;
20 1.0 1.650

US Pat. No. 11,067,777

OPTICAL IMAGING SYSTEM

ZHEJIANG SUNNY OPTICAL CO...


1. An optical imaging system comprising, sequentially from an object side to an image side,a first lens having a negative refractive power;
a second lens having a refractive power;
a third lens having a negative refractive power;
a fourth lens having a positive refractive power;
a fifth lens having a negative refractive power;
a sixth lens having a positive refractive power; and
a seventh lens having a negative refractive power,
wherein there is an air spacing on an optical axis between any two adjacent lenses in the first to seventh lenses, and
an effective focal length f of the optical imaging system and an entrance pupil diameter EPD of the optical imaging system satisfy: f/EPD?2.10, and the effective focal length f of the optical imaging system and an effective focal length f1 of the first lens satisfy: f1/f>3, and
wherein the optical imaging system is a seven-piece optical imaging system.

US Pat. No. 11,067,776

IMAGING OPTICAL SYSTEM, PROJECTION DISPLAY DEVICE, AND IMAGING APPARATUS

FUJIFILM Corporation, To...


1. An imaging optical system consisting of, in order from a magnification side:a first imaging optical system that forms an intermediate image on a position conjugate to a magnification side imaging surface; and
a second imaging optical system that re-forms the intermediate image on a reduction side imaging surface,
wherein the first imaging optical system consists of, in order from the magnification side, a first A lens group, a first optical path deflection unit that deflects an optical path, a first B lens group, and a second optical path deflection unit that deflects the optical path,
wherein the intermediate image is formed between the second optical path deflection unit and the second imaging optical system, and
a total angle of view is equal to or greater than 130°.

US Pat. No. 11,067,775

CAMERA LENS ASSEMBLY

ZHEJIANG SUNNY OPTICAL CO...


1. A camera lens assembly, from an object side of the camera lens assembly to an image side comprising sequentially a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens,wherein a maximum effective radius DT11 of an object-side surface of the first lens and a maximum effective radius DT62 of an image-side surface of the sixth lens satisfy: 0.8 wherein HFOV<20°, and HFOV is half of a maximal field-of-view of the camera lens assembly.

US Pat. No. 11,067,773

ZOOM LENS AND IMAGING APPARATUS HAVING FOUR LENS GROUPS

FUJIFILM Corporation, To...


1. A zoom lens consisting of, in order from an object side:a first lens group that has a negative refractive power;
a second lens group that has a positive refractive power;
a third lens group that has a negative refractive power; and
a fourth lens group that has a positive refractive power,
wherein during zooming, distances between adjacent groups of the first lens group, the second lens group, the third lens group, and the fourth lens group in a direction of an optical axis are changed,
wherein the third lens group consists of a negative lens,
wherein during focusing, only the third lens group moves along the optical axis,
wherein assuming thata back focal length at the wide-angle end is Bf, and
a focal length of the fourth lens group is f4,
Conditional Expression (5-2) is satisfied0.21?Bf/f4<0.3??(5-2),


wherein the second lens group has a stop, and has lenses adjacent to the object side and the image side of the stop, and
wherein the fourth lens group remains stationary during zooming.

US Pat. No. 11,067,772

IMAGE SENSOR AND IMAGE CAPTURING APPARATUS

CANON KABUSHIKI KAISHA, ...


1. An image sensor including a plurality of photoelectric converters, arrayed in a column direction and a row direction, for receiving light fluxes that have passed through different partial pupil regions of an imaging optical system, whereinan entrance pupil distance ZS of the image sensor and a maximum image height R of a focus detection area of the image sensor satisfy a condition of:2.33R

US Pat. No. 11,067,771

OBSERVATION APPARATUS, CONTROL METHOD, AND COMPUTER-READABLE MEDIUM FOR CHANGING A RELATIVE DISTANCE BETWEEN A STAGE AND OPTICAL SYSTEM BASED ON DETERMINED RELIABILITY OF IN-FOCUS POSITION

OLYMPUS CORPORATION, Tok...


1. An observation apparatus comprising:an image sensor that includes an imaging surface and acquires a plurality of images of an object to be observed;
an optical system that projects an optical image of the object onto the image sensor;
a stage on which the object is placed;
a focusing unit having an actuator configured to adjust, with reference to an optical-axis direction of the optical system, a relative positional relationship between the stage and the optical system; and
a processor comprising hardware, the processor being configured to control at least the image sensor and the focusing unit; and
wherein the processor is configured to:determine an in-focus position for the focusing unit based on the plurality of images of the object acquired by the image sensor, the plurality of images each being an image acquired when the focusing unit is located at a different position,
determine a reliability of the determined in-focus position, and
when determining that the in-focus position is not reliable, control the focusing unit sequentially to a plurality of positions and cause the image sensor to acquire, for each of the plurality of positions, a candidate image of the object,
wherein the control of the focusing unit adjusts a distance between the stage and the optical system in the optical-axis direction of the optical system.


US Pat. No. 11,067,770

IMAGE PICKUP UNIT AND IMAGE PICKUP APPARATUS FOR HOLDING LENS GROUP MOVABLY IN OPTICAL AXIS DIRECTION

CANON KABUSHIKI KAISHA, ...


1. An image pickup unit comprising:a plurality of first holding members configured to hold optical components respectively and have cam followers, respectively;
a second holding member configured to hold an image pickup device to pick up an image through the optical components;
a housing configured to accommodate the plurality of first holding members;
a first vibration-type linear actuator configured to drive at least one of the first holding members in an optical axis direction of the optical component,
a second vibration-type linear actuator configured to drive the second holding member in the optical axis direction;
a cam cylinder configured to be disposed to be rotatable around an axis parallel to the optical axis and to have cam grooves engaged with the cam followers, respectively, wherein the axis is different from the optical axis,
wherein the first vibration-type linear actuator and the second vibration-type linear actuator are disposed on a first side surface parallel to an optical axis of the housing.

US Pat. No. 11,067,769

LENS BARREL AND IMAGE CAPTURING APPARATUS

CANON KABUSHIKI KAISHA, ...


1. A lens barrel comprising:a first lens holding frame configured to be movable in an optical axis direction;
a second lens holding frame configured to be movable in the optical axis direction and to move in the optical axis direction relatively to the first lens holding frame;
a third lens holding frame disposed between the first lens holding frame and the second lens holding frame in the optical axis direction;
a guide shaft extending in the optical axis direction;
a first drive unit configured to cause the third lens holding frame to move along the guide shaft in the optical axis direction relatively to the first lens holding frame and the second lens holding frame;
a cam cylinder including a plurality of first cam grooves and a plurality of second cam grooves, the plurality of first cam grooves and the plurality of second cam grooves being formed on an inside of the cam cylinder; and
a second drive unit configured to rotationally drive the cam cylinder, wherein the first lens holding frame includes a plurality of first cam pins that engage with the first cam grooves, respectively,
wherein the second lens holding frame includes a plurality of second cam pins that engage with the second cam grooves, respectively,
wherein as the cam cylinder rotates, the first cam pins move in the optical axis direction by following the first cam grooves, and the second cam pins move in the optical axis direction by following the second cam grooves,
wherein the guide shaft is supported by both the first lens holding frame and the second lens holding frame, and both the first lens holding frame-side and the second lens holding frame-side of the guide shaft are positioned in a direction orthogonal to an optical axis,
wherein one of the first lens holding frame and the second lens holding frame is movable in the optical axis direction with respect to the guide shaft while the guide shaft is positioned in the direction orthogonal to the optical axis, as the cam cylinder rotates, and
wherein other of the first lens holding frame and the second lens holding frame is not movable in the optical axis direction with respect to the guide shaft while the guide shaft is positioned in the optical axis direction, as the cam cylinder rotates.

US Pat. No. 11,067,768

OPTICAL MEMBER DRIVING MECHANISM

TDK TAIWAN CORP., Taoyua...


1. An optical member driving mechanism, comprising:a first module;
a second module;
a driving module, driving the second module to move relative to the first module; and
an electronic member module, disposed on the first module, comprising:a package member;
a first electronic member, having a plurality of surfaces, wherein the surfaces of the first electronic member are not parallel to each other, the package member is directly in contact with the surfaces of the first electronic member, and the first electronic member is not exposed from the package member, wherein the first electronic member is configured to control the driving module or detect the relative motion between the second module and the first module;
a second electronic member, fixedly disposed in the package member, wherein a gap between the first electronic member and the second electronic member is greater than zero;
a first frame, electrically connected to the first electronic member and comprising:a first segment, electrically connected to the first electronic member and having a plurality of surfaces, wherein the surfaces of the first segment are not parallel to each other, the package member is directly in contact with the surfaces of the first segment, and the first segment is not exposed from the package member; and
a second segment, electrically connected to the first electronic member via the first segment, wherein the first segment and the second segment are integrally formed as one piece, the second segment is connected to the first segment without adhering and welding, and at least a portion of the second segment is exposed from the package member; and

a second frame, electrically connected to the second electronic member and comprising:a third segment, electrically connected to the second electronic member and having a plurality of surfaces, wherein the surfaces of the third segment are not parallel to each other, the package member is directly in contact with the surfaces of the third segment, and the third segment is not exposed from the package member; and
a fourth segment, electrically connected to the second electronic member via the third segment, wherein the third segment and the fourth segment are integrally formed as one piece, the fourth segment is connected to the third segment without adhering and welding, and at least a portion of the fourth segment is exposed from the package member.



US Pat. No. 11,067,767

ACTUATOR DRIVER

ROHM CO., LTD., Kyoto (J...


1. An actuator driver comprising:a position detection unit structured to generate a position detection value that indicates a position of a control target, based on a Hall signal generated by a Hall element;
a correction unit structured to correct the position detection value;
a controller structured to generate a control instruction value such that the position detection value subjected to correction matches a position instruction value that indicates a target position of the control target;
a driver unit structured to apply a driving signal that corresponds to the control instruction value to an actuator; and
a temperature detection unit structured to generate a temperature detection value that indicates a temperature based on a voltage across the Hall element in a state in which a predetermined current is supplied to the Hall element, wherein the correction unit is structured to correct the position detection value such that the relation between the position detection value and an actual position exhibits a linearity that is uniform independent of the temperature, wherein, with the position detection value or otherwise the position instruction value as y, with the actual position as x, and with the relation between x and y as an x?y characteristic, the correction unit comprises memory structured to store data that represents the x?y characteristic y=a*x+b generated in the form of a linear function to be used as a calculation target, data that represents a function x=f(y) obtained by means of a polynomial approximation of the x?y characteristic measured beforehand at a predetermined temperature, and correction coefficients c and d (d may be set to zero) acquired for each of a plurality of temperatures,
wherein the correction unit is structured to perform an operation comprising:calculating x1=f(y1) with the position detection value received from the position detection unit as y1;
determining the coefficients c and d that correspond to the temperature indicated by the temperature detection value;
calculating y2=a*x1+b; and
calculating y3=c*y2+d, and

wherein y3 is employed as the position detection value subjected to correction.

US Pat. No. 11,067,766

IMAGE FORMING APPARATUS

Canon Kabushiki Kaisha, ...


1. An image forming apparatus for forming a toner image on a recording material, comprising:an image forming portion that forms the toner image on the recording material;
a fixing portion that fixes the toner image formed on the recording material onto the recording material by using heat; and
a control portion that controls the apparatus, wherein
the control portion compares a width of a first recording material with a width of a second recording material that is conveyed following the first recording material,
when a first toner image formed on the first recording material is fixed onto the first recording material by the fixing portion, and then a second toner image is formed on the second recording material of which a width is larger than that of the first recording material in the width direction of the recording material orthogonal to a conveying direction of the recording material, the control portion can execute a cooling sequence to cool a non-passing region of the fixing portion through which the second recording material passes but the first recording material does not pass, before the second toner image formed on the second recording material is fixed by the fixing portion,
when the width of the second recording material is smaller than that of the first recording material, the control portion performs fixing processing of the second recording material without executing the cooling sequence, and
the control portion sets an execution condition to execute the cooling sequence in accordance with information on the second toner image in the region of the second recording material corresponding to the non-passing region.

US Pat. No. 11,067,765

EVANESCENT COUPLING OF PHOTODIODE WITH OPTICAL WAVEGUIDE

Cisco Technology, Inc., ...


1. An apparatus comprising:a semiconductor-based photodiode comprising:a first region formed in a silicon-on-insulator (SOI) layer and doped with a first conductivity type, wherein a first electrical contact is formed within the first region; and
a second region formed in a block of a semiconductor material other than silicon, wherein the block contacts a top surface of the SOI layer, wherein the second region is doped with a second, different conductivity type, and wherein a second electrical contact is formed within the second region; and

an optical waveguide spaced apart from the SOI layer and evanescently coupled with a depletion region of the photodiode formed at least partly in the block.

US Pat. No. 11,067,764

OPTICAL TRANSCEIVER

Prime World International...


1. An optical transceiver, comprising:an optical active component;
a receptacle comprising a supporting portion and an inset portion connected with each other;
a ferrule disposed within the inset portion;
a ferrule fastening component disposed on the receptacle, the ferrule fastening component comprising a first holding portion, a cap and a second holding portion connected together, the cap being located between the first holding portion and the second holding portion, the first holding portion touching the supporting portion, the second holding portion touching the ferrule, and the cap covering a first area of a top surface of the receptacle; and
wherein a window of the cap of the ferrule fastening component exposes a second area of the top surface of the receptacle and allows a user to observe the optical active component.

US Pat. No. 11,067,763

INTEGRATED PACKAGED LIGHT ENGINE AND SIGNAL TRANSMITTING AND RECEIVING METHOD THEREOF

HANGZHOU MO-LINK TECHNOLO...


1. An integrated packaged light engine, characterized in that: the light engine comprises a molded interconnection device, a ceramic substrate, a laser chip, a photodiode chip, an optical drive chip, a transimpedance amplifier chip, an array lens module and an optical fiber interface, wherein the molded interconnection device is fixedly connected on a PCB, the molded interconnection device is embedded with the ceramic substrate, and the ceramic substrate is provided with the laser chip, the photodiode chip, the optical drive chip, the transimpedance amplifier chip, the array lens module and the optical fiber interface; a surface of the molded interconnection device is provided with a power supply circuit and a signal circuit, a surface of the ceramic substrate is provided with a connecting circuit, a plurality of metal pins of the optical drive chip and the transimpedance amplifier chip are respectively connected with the connecting circuit on the surface of the ceramic substrate; the laser chip is electrically connected with the optical drive chip, the photodiode is electrically connected with the transimpedance amplifier chip, and the plurality of metal pins of the optical drive chip and the connecting circuit on the surface of the ceramic substrate are all connected with the power supply circuit and the signal circuit on the surface of the molded interconnection device.

US Pat. No. 11,067,762

OPTICAL MODULE INCLUDING PHOTO DETECTOR WITH LENS

Sumitomo Electric Industr...


1. An optical module comprising:a substrate having a base plane;
an optical circuit element having an optical waveguide and a reflector, the optical waveguide being configured to propagate an optical signal in a propagation direction parallel to the base plane, the reflector having a reflection plane inclined from the base plane by 45°, the reflection plane being configured to reflect an optical signal propagated through the optical waveguide and to output a reflected optical signal toward the substrate as a collimated beam;
a support member supporting the optical circuit element above the base plane;
a photo detector mounted on the base plane, the photo detector including a condenser lens and a light-receiving layer, the condenser lens being configured to converge the collimated beam onto the light-receiving layer, the light-receiving layer being parallel with the base plane;
wherein the collimated beam output from the reflector goes toward the condenser lens in a direction perpendicular to a tangent plane at a top of the condenser lens,
wherein the collimated beam travels along an optical path from the reflector to the tangent plane, the optical path having a shortest distance set to be smaller than a Rayleigh length of the collimated beam, and
wherein as viewed from a direction perpendicular to the base plane, the collimated beam has an optical axis set apart from the top of the condenser lens by an offset distance.

US Pat. No. 11,067,761

OPTICAL RECEPTACLE AND OPTICAL MODULE

Enplas Corporation, Sait...


1. An optical receptacle configured to optically couple a light emitting element and an end surface of an optical transmission member when the optical receptacle is disposed between an optical transmission member and a photoelectric conversion device including the light emitting element and a detection element configured to monitor emission light emitted from the light emitting element, the optical receptacle comprising:a first optical surface configured to allow incidence of the light emitted from the light emitting element;
a first transmission part configured to allow, to pass through the first transmission part as signal light travelling toward the end surface of the optical transmission member, a part of light entered from the first optical surface;
a light separation part configured to separate another part of the light entered from the first optical surface into monitor light travelling toward the detection element and the signal light travelling toward the end surface of the optical transmission member;
a second optical surface configured to emit, toward the end surface of the optical transmission member, the signal light passed through the first transmission part and the signal light separated by the light separation part; and
a third optical surface configured to emit, toward the detection element, the monitor light separated by the light separation part,
wherein the light separation part includesa reflection part inclined with respect to a light axis of the light entered from the first optical surface, the reflection part being configured to reflect, toward the third optical surface as the monitor light, a part of light incident on the light separation part,
a plurality of second transmission parts disposed between the reflection part and the first transmission part, the plurality of second transmission parts being configured to allow, to pass through the plurality of second transmission parts as signal light, another part of the light incident on the light separation part, and
the first transmission part and two or more second transmission parts of the plurality of second transmission parts are located within an optical effective region that is a region around a central axis, the central axis being set as a light axis of light that is entered from the first optical surface and is emitted from the second optical surface, the optical effective region having a periphery that is a surface separated from the central axis by a distance equal to one of a radius of the first optical surface and a radius of the second optical surface, the one of the radius of the first optical surface and the radius of the second optical surface being larger than the other.


US Pat. No. 11,067,760

OPTICAL FIBER CONNECTOR FOR MULTI-FIBER CABLE

CommScope Technologies LL...


1. A fiber optic cable assembly comprising:a plug housing arrangement extending between first and second axial ends, the first axial end being formed by a plug body defining a connection interface, the plug housing arrangement including part of an attachment arrangement by which the plug housing arrangement is attachable to an optical adapter;
an optical cable including a plurality of optical fibers, the optical cable being terminated at the plug housing arrangement, the optical fibers extending through the plug housing arrangement from the second axial end to the first axial end, the optical fibers being disposed in a plurality of rows at the first axial end so that end faces of the optical fibers are accessible at the connection interface of the plug body; and
an excess length storage element carried by the plug housing arrangement, the excess length storage element including a spool that is configured to receive and manage excess length of the optical fibers in one or more loops.

US Pat. No. 11,067,759

INGRESS PROTECTED FAN-OUT CONNECTOR AND ADAPTER ASSEMBLY

Senko Advanced Components...


1. An ingress protected fan-out connector and adapter assembly for fanning out optical fibers of a multi-fiber source, the assembly comprising:a housing defining an interior cavity therein with a first end and a second end, the housing having an end flange;
a fan-out member releasably attachable at the first end of the housing for fanning out optical fibers into a plurality of discrete pigtail cable segments outside the interior cavity, each pigtail cable segment being configured to be terminated by a respective optical fiber connector;
a first seal ring disposed between the fan-out member and the housing for providing a seal for keeping moisture from entering the interior cavity;
a multi-fiber cable receiving component at the second end of the housing and comprising a flange, the multi-fiber cable receiving component comprising one of:an optical fiber adapter configured to be releasably attachable to the second end of the housing for attachably receiving a connector of a multi-fiber optical cable; or
an optical fiber cable gland configured for passage of a multi-fiber optical cable therethrough; and

a second seal ring disposed between the flange of the multi-fiber cable receiving component and the end flange of the housing for keeping moisture out of interior cavity.

US Pat. No. 11,067,758

DUPLEX FIBER OPTIC ADAPTER

EZconn Corporation, Taip...


1. A duplex fiber optic adapter, comprising:a pair of fiber optic connector assemblies, configured to couple to a mating fiber optic connector, each including an optic fiber assembly having an optical fiber core, a coupling ferrule, a connecting ferrule and a stabilizing component comprising a stop lock collar portion and a component sleeve portion integrated therewith, and a coupling housing having an attachment chamber and a stop lock receiving structure on one end of the attachment chamber, wherein the coupling ferrule is fixedly attached to the stabilizing component on one end and protrudes outwardly therefrom and the connecting ferrule is fixedly attached to the stabilizing component on an opposite end and protrudes outwardly therefrom and the optical fiber core is positioned at a central axis therein, and wherein the stop lock receiving structure is configured to fixedly secure the optic fiber assembly therein, and a shape of the stop lock receiving structure and a shape of the stop lock collar portion comprises at least one corresponding angle, respectively;
a housing having a pair of opening structures on one end thereof, configured for fixed attachment of the pair of fiber optic connector assemblies, respectively, and a pair of polarity reversal connector openings on an opposing end of the housing, opposite the pair of opening structures, configured to receive a pair of ferrules of a fiber optic connector; and
a pair of ports positioned within the housing, configured to receive the pair of ferrules of the fiber optic connector and each connecting ferrule of the optic fiber assemblies, respectively, and establish an optical connection therebetween,
wherein each coupling housing is configured to fixedly snap fit attach to the pair of opening structures, respectively,
whereby rotational movement of each of the stabilizing components is prevented via the corresponding shapes of the stop lock receiving structure and stop lock collar portion, and each of the coupling ferrule and connecting ferrule is fixedly slide-fit attached to coupling inner stop ledges and connecting inner stop ledges of the stabilizing components from the stop lock collar portion and component sleeve portion, respectively, stabilizing and aligning each of the optical fiber cores of each of the optic fiber assemblies, respectively, and
whereby when the fiber optic connector is inserted into the adapter and the pair of fiber optic connector assemblies of the adapter are coupled to the mating fiber optic connector, latch clip assemblies of the fiber optic connector are engaged within the pair of polarity reversal connector openings and the pair of ferrules is engaged in the pair of ports of the housing, respectively, and latch clip assemblies of the pair of fiber optic connector assemblies are engaged within the mating fiber optic connector and each coupling ferrule is engaged in a pair of ports of the mating fiber optic connector, whereby a polarity reversal connection is established between the fiber optic connector and mating fiber optic connector via the adapter.

US Pat. No. 11,067,757

OPTICAL WIRE TRANSITION ADAPTER

Tyonek Manufacturing Grou...


1. A transition adapter for routing a first optical cable into a plurality of optical cables, comprising:a main body comprising an entrance leg, a first exit leg and a second exit leg;
a first channel within the main body and configured for receiving a first optical cable through the entrance leg, the first optical cable comprising a first sheath wherein the first sheath is partially removed from the first optical cable to allow the first optical cable to be inserted within the first channel and the first sheath extends over the entrance leg and a first heat sensitive boot is applied to the first sheath;
a second channel, the first channel open to the second channel, the second channel within the main body and configured for receiving a second optical cable through the first exit leg, which is a first portion of the first optical cable, the second channel terminating with a first opening from which the second optical cable extends and the second optical cable comprising a second sheath and the second sheath is partially removed from the second optical cable to allow the second optical cable to be inserted within the second channel and the second sheath extends over the first exit leg and a second heat sensitive boot is applied to the second sheath; and
a third channel, the first channel open to the third channel, the third channel within the main body and configured for receiving a third optical cable through the second exit leg, which is a second portion of the first optical cable, the third channel terminating with a second opening from which the third optical cable extends and wherein the third optical cable comprising a third sheath and the third sheath is partially removed from the third optical cable to allow the third optical cable to be inserted within the third channel and the third sheath extends over the second exit leg and a third heat sensitive boot is applied to the third sheath.

US Pat. No. 11,067,756

SMALL FORM FACTOR STACKABLE FIBER OPTIC ADAPTER ASSEMBLIES

Senko Advanced Components...


1. A stackable adapter, comprising:an inner housing is formed from at least one partially open sidewall and opposite first and second end walls spaced apart along a longitudinal axis having adapter ports formed therein for receiving fiber optic connectors;
the partially open sidewall has at least one latch and at least one recess and an opening between the latch and the at least one recess, the opening extending along the longitudinal axis and having an open end that opens through the first end wall, and wherein
the at least one latch and the at least one recess are near a top edge of the open sidewall and a bottom edge of the at least one partially open sidewall;
wherein the at least one latch and the at least one recess are configured to selectively retain another piece on the inner housing such that the other piece is in side-by-side relation with the partially open sidewall and the partially open sidewall faces the other piece.

US Pat. No. 11,067,755

OPTICAL FIBER MODULE AND METHOD FOR MANUFACTURING THE SAME

KOHOKU KOGYO CO., LTD., ...


1. An optical fiber module comprising:an optical circuit formed body including a first surface, where an optical waveguide is formed and an end part of said optical waveguide is protruding from said first surface;
a holder including a second surface facing with said first surface, which holds an optical fiber and exposes one end part of said optical fiber in such a manner that said one end part of said optical fiber can be optically connected to said end part of said optical waveguide at a side of said second surface; and
a spacer sandwiched between said first surface and said second surface.

US Pat. No. 11,067,754

SIMULTANEOUS ELECTRICAL AND OPTICAL CONNECTIONS FOR FLIP CHIP ASSEMBLY

Massachusetts Institute o...


11. An apparatus comprising:a chip carrier comprising:a graded index lens having a curved end, a tapered end, and a refractive index that varies with height, the curved end of the graded index lens in optical communication with an optical waveguide of an external circuitry;
a chip carrier waveguide, the chip carrier waveguide having a first tapered end and a second tapered end, the first tapered end of the chip carrier waveguide in optical communication with the tapered end of the graded index lens; and

a photonic integrated circuit comprising a circuit waveguide having a tapered end, the tapered end of the circuit waveguide in optical communication with the second tapered end of the chip carrier waveguide.

US Pat. No. 11,067,753

OPTICAL MODULE AND METHOD FOR PRODUCING SAME

Fujikura Ltd., Tokyo (JP...


1. An optical module comprising:a substrate-type optical waveguide device; and
an optical fiber that guides light that enters or exits the substrate-type optical waveguide device, wherein
spot sizes w1 and w2 satisfy 1 of a waveguide mode guided through a core of the substrate-type optical waveguide device,

w2 is a spot size:on an end surface of the optical fiber, and
of a waveguide mode guided through a core of the optical fiber,


? is a spot size ratio w2/w1 at which an efficiency ?(0) is equal to the efficiency ?(0) when w2/w1=1, where the efficiency ?(0) is an efficiency of coupling between the substrate-type optical waveguide device and the optical fiber when an amount of axis misalignment between the core of the substrate-type optical waveguide device and the core of the optical fiber is 0, and
the spot size w1 is less than or equal to 3 ?m.

US Pat. No. 11,067,752

RECONFIGURABLE OPTICAL ADD/DROP MULTIPLEXER

Huawei Technologies Co., ...


1. A reconfigurable optical add/drop multiplexer, comprising:an input component comprising M+P input ports, wherein M input ports are used for dimensional input, P input ports are used for wavelength adding, and M and P are integers greater than or equal to 1;
an output component comprising N output ports, wherein the N output ports are used for dimensional output, and N is an integer greater than or equal to 1;
a first switch array comprising at least P switch units, wherein each of the P input ports corresponds to at least one of the at least P switch units, and the at least P switch units are configured to: receive P input beams from the P input ports, and route the P input beams;
a beamsplitter, configured to: receive M input beams from the M input ports, and split each of the M input beams into at least N parts, to obtain at least M×N beams;
a wavelength dispersion system, configured to: receive the P input beams from the first switch array, and disperse the P input beams, to obtain sub-beams of the P input beams, and further configured to: receive the at least M×N beams from the beamsplitter, and disperse the at least M×N beams, to obtain sub-beams of the at least M×N beams;
a second switch array comprising N rows of switch units, wherein each row of switch units comprise K switch units, the K switch units are in a one-to-one correspondence with K wavelengths, the K switch units are separately configured to route sub-beams of respective wavelengths of the K switch units, and K is an integer greater than 1; and
a redirection system, configured to: receive the sub-beams of the P input beams from the wavelength dispersion system, and redirect the sub-beams of the P input beams to the N rows of switch units in the second switch array, wherein the N rows of switch units route the sub-beams of the P input beams to the N output ports, and the first switch array, the second switch array, the wavelength dispersion system, and the redirection system are arranged so that the sub-beams of the P input beams can be routed to the N output ports, wherein
the redirection system is further configured to: receive sub-beams of M×N beams in the at least M×N beams from the wavelength dispersion system, and redirect the sub-beams of the M×N beams to the N rows of switch units in the second switch array, wherein the N rows of switch units route the sub-beams of the M×N beams to the N output ports.

US Pat. No. 11,067,751

TRENCH-BASED OPTICAL COMPONENTS FOR PHOTONICS CHIPS

GLOBALFOUNDRIES U.S. INC....


1. A structure comprising:a first dielectric layer including a trench with a first sidewall and a second sidewall;
a second dielectric layer below the first dielectric layer;
a first waveguide core positioned inside the trench between the first sidewall and the second sidewall of the trench; and
a second waveguide core in the second dielectric layer,
wherein the first waveguide core has a first width, and the trench has a second width between the first sidewall and the second sidewall that is greater than the first width.

US Pat. No. 11,067,750

SILICON PHOTONICS PLATFORM WITH INTEGRATED OXIDE TRENCH EDGE COUPLER STRUCTURE

Cisco Technology, Inc., ...


1. An optical device, comprising:a first optical region comprising a first waveguide separated from a first surface of a substrate in a vertical direction by a first distance;
a second optical region comprising:a second waveguide separated from a second surface of the substrate by a second distance in the vertical direction, wherein the second surface of the substrate is recessed from the first surface of the substrate thereby forming a trench region in the substrate, wherein the second distance is greater than the first distance, and wherein the second optical region is directly coupled to an optical light source; and
a third waveguide separated from the first surface by a third distance that is greater than the first distance and less than the second distance; and

an optical mode overlap region between the first optical region and the second optical region wherein the second waveguide optically couples the first waveguide to the third waveguide, wherein the optical mode overlap region is disposed over a portion of the first surface of the substrate and a portion of the second surface of the substrate, wherein the first waveguide propagates a signal output from the optical light source to the second waveguide, and wherein the second waveguide propagates the signal to the third waveguide.

US Pat. No. 11,067,749

WAVEGUIDES WITH CLADDING LAYERS OF GRADATED REFRACTIVE INDEX

GLOBALFOUNDRIES U.S. INC....


1. A structure comprising:a waveguide core having a first surface;
a layer stack including a first layer, a second layer, and a third layer that are positioned on the first surface of the waveguide core, the first layer positioned in the layer stack between the second layer and the first surface of the waveguide core, and the second layer positioned in the layer stack between the third layer and the first layer; and
a first dielectric layer over the waveguide core and the layer stack,
wherein the waveguide core is comprised of silicon having a first refractive index, the first layer is comprised of titanium oxide having a second refractive index that is less than the first refractive index of the silicon, the second layer is comprised of silicon nitride having a third refractive index that is less than the second refractive index of the titanium oxide, the third layer is comprised of aluminum oxide having a fourth refractive index that is less than the third refractive index of the silicon nitride, and the first dielectric layer is comprised of silicon dioxide having a fifth refractive index that is less than the fourth refractive index of the aluminum oxide.

US Pat. No. 11,067,748

GUIDE TRANSITION DEVICE AND METHOD

Lightwave Logic Inc., En...


1. A method of fabricating a guide transition device comprising the steps of:providing a platform including a semiconductor waveguide defining a light input port for receiving a light beam, the semiconductor laser being positioned on a first plane;
forming one end of the semiconductor waveguide into an angled surface;
depositing a polymer planarizing layer on the platform in abutting engagement with the angled surface to provide a first angular deflection surface;
depositing a lower polymer cladding layer on the polymer planarizing layer, depositing a polymer core on the lower polymer cladding layer, and depositing an upper polymer cladding layer on the core and lower polymer cladding layer, the lower polymer cladding layer, the polymer core, and the upper polymer cladding layer forming a polymer waveguide on a second plane different than the first plane with a first end defining a light output port; and
removing portions of the lower polymer cladding layer, the core, and the upper polymer cladding layer to form a second angular deflection surface at an end of the polymer waveguide opposite the first end, the first angular deflection surface and the second angular deflection surface having compatible angles so that a light beam directed into the light input port defined by the semiconductor waveguide on the first plane is deflected into the core of the polymer waveguide on the second plane.

US Pat. No. 11,067,747

DEPOSITED SI PHOTODETECTORS FOR SILICON NITRIDE WAVEGUIDE BASED OPTICAL INTERPOSER

Cisco Technology, Inc., ...


1. Apparatus comprising:an optical detector comprising a detection layer consisting of a doped material selected from a group consisting of doped polysilicon and doped amorphous silicon, wherein the doped material forms a diode, wherein the diode comprises a p-doped region and an n-doped region, wherein the detection layer comprises a first refractive index;
a waveguide optically coupled to the diode and disposed on a different layer than the detection layer, wherein the waveguide comprises a second refractive index; and
a material layer disposed between the detection layer and the waveguide, wherein the material layer comprises a third refractive index, wherein the third refractive index is different than the first refractive index and the second refractive index, wherein a portion of light energy traveling via the waveguide radiates through the material layer to the optical detector.

US Pat. No. 11,067,746

LIGHT DEFLECTION DEVICE

NATIONAL UNIVERSITY CORPO...


1. A light deflection device comprising a photonic crystal waveguide having a lattice array with low refractive index parts periodically arranged in a surface of a high refractive-index member, the lattice array constituting the waveguide, whereinthe lattice array includes a dual-periodic structure including a first periodic array and a second periodic array different from each other in periodic arrangement of the low refractive index parts, and
the low refractive index parts have an asymmetrical cross-sectional shape with reference to a thickness direction in at least either of the first and second periodic arrays of the dual-periodic structure, and thereby increasing intensity of radiation of light in one direction of a thickness directions, the light propagating through waveguide core formed in the lattice array.

US Pat. No. 11,067,745

DISPLAY ASSEMBLY INCLUDING AT LEAST TWO DISPLAY DEVICES

SEAMLESS TECHNOLOGY INC.,...


1. A display assembly, comprising:at least two display devices arranged side by side, each of the at least two display devices comprising a front surface adapted for displaying image, the front surface defining a display area and a border area outside the display area; and
two image compensating elements at a juxtaposition of every adjacent two of the display devices, each of the two image compensating elements being on the front surface of a corresponding one of the adjacent two display devices;
each of the image compensating elements comprising a first part and a second part independent from each other, the first part being closer to the border area than the second part;
wherein the first part comprises a first light-incident surface attaching on the front surface and in the display area, a first light-emitting surface parallel to and opposite to the first light-incident surface, and a first connecting surface and a second connecting surface coupling between the first light-incident surface and the first light-emitting surface; the first connecting surface being opposite to the second connecting surface;
wherein the first part comprises a plurality of light guiding channels; light guiding paths of the plurality of light guiding channels are independent from each other and extend along a direction from the first light-incident surface toward the first light-emitting surface;
wherein the second part comprises a second light-incident surface attaching on the front surface and in the display area, a second light-emitting surface intersecting with the second light-incident surface, and a connecting surface coupling between the second light-incident surface and the second light-emitting surface; the connecting surface of the second part attaches on the first connecting surface; the second light-emitting surface and the second light-incident surface intersect to form an acute angle;
wherein the second part comprises a plurality of light guiding channels independent from each other and extend along a direction from the second light-incident surface toward the second light-emitting surface; the direction of the light guiding channels of the second part is inclined toward a direction away from the border area.

US Pat. No. 11,067,744

LOW BEND LOSS OPTICAL FIBER WITH STEP INDEX CORE

Corning Incorporated, Co...


1. A single mode optical fiber, comprising:a silica based core having a step refractive index profile with an alpha of greater than 10, a relative refractive index ?1MAX, and an outer radius r1, wherein 6.25 microns>r1>4.75 microns, the core further comprising Cl, Ge, or a combination thereof, wherein the maximum weight % of Ge in the core is greater than 6 wt % and less than 14 wt %;
a first cladding region in contact with and surrounding the core, the first cladding region having a relative refractive index ?2MIN, an inner radius r1, and an outer radius r2, wherein r2<20 microns, wherein the first cladding region is a depressed index cladding region; and
an outer cladding region surrounding the first cladding region, the outer cladding region having a relative refractive index ?3, wherein the chlorine concentration in the outer cladding is greater than 0.2 wt % and less than 2.5 wt %,
said fiber having MFD at 1310 nm wavelength greater than 9 microns, a zero dispersion wavelength of less than 1300 nm, a 22 m cable cutoff wavelength of less than 1260 nm; and a bend loss ofless than 0.005 dB/turn when the optical fiber is bent around a 30 mm diameter mandrel; and
less than 0.5 dB/turn when the fiber is bent around a 20 mm diameter mandrel.


US Pat. No. 11,067,743

ELECTRONIC DEVICE WITH LIGHT GUIDE MODULE COMPRISING TWO LIGHT GUIDE UNITS AND ELASTIC UNIT THERE BETWEEN

WISTRON NEWEB CORP., Hsi...


1. A light guide module, comprising:a first light guide unit;
a second light guide unit;
an elastic unit, disposed between the first light guide unit and the second light guide unit, wherein one side of the elastic unit is connected to the first light guide unit, and the other side of the elastic unit is connected to the second light guide unit,
wherein in an initial state, a first distance is formed between the first light guide unit and the second light guide unit, and in an extended state, the elastic unit is elastically deformed, and a second distance is formed between the first light guide unit and the second light guide unit,
wherein the first light guide unit comprises a first unit base and a first light guide post, the second light guide unit comprises a second unit base and a second light guide post, the first light guide post is connected to the first unit base, the second light guide post is connected to the second unit base, one side of the elastic unit is connected to the first unit base, and the other side of the elastic unit is connected to the second unit base,
wherein the first light guide post comprises a first section and a second section, and the first section and the second section protrude from opposite surfaces of the first unit base.

US Pat. No. 11,067,742

BACKLIGHT MODULE, DISPLAY DEVICE, AND METHOD FOR MANUFACTURING BACKLIGHT MODULE

BOE Technology Group Co.,...


1. A backlight module, comprising:a heat sink located above a backplane for dissipating heat generated by a light source;
a reflective member disposed on a side of a light guide plate adjacent to the backplane; and
one or more thermal buffer members disposed between the heat sink and the reflective member, wherein a thermal conductivity coefficient of each of the one or more thermal buffer members in a direction perpendicular to a light exiting surface of the backlight module is less than that of the heat sink,
wherein the thermal conductivity coefficient of the thermal buffer member of the one or more thermal buffer members adjacent to the light source in the direct is less than that of the thermal buffer member of one or more thermal buffer members away from the light source.

US Pat. No. 11,067,741

BACKLIGHT MODULE AND ILLUMINATED TOUCH DEVICE THEREOF

CHICONY POWER TECHNOLOGY ...


1. An illuminated touch device, comprising:a circuit board comprising a touch circuit; and
a backlight module on the circuit board and comprising:a light guide plate comprising a first plate body and a second plate body fitted with each other, the first plate body comprising a plurality of first blocks and a plurality of first openings aligned with the plurality of first blocks, and the second plate body comprising a plurality of second blocks and a plurality of second openings aligned with the plurality of second blocks, wherein the plurality of first blocks have a plurality of first microstructures, and the plurality of second blocks have a plurality of second microstructures;
a light source assembly electrically connected to the circuit board and comprising a plurality of first light-emitting components and a plurality of second light-emitting components arranged opposite to each other in a staggered manner, wherein each of the first light-emitting components has a first light-emitting surface, each of the second light-emitting components has a second light-emitting surface, the plurality of first light-emitting components respectively protrude from the plurality of first openings and face the plurality of first blocks with the plurality of first light-emitting surfaces, and the plurality of second light-emitting components respectively protrude from the plurality of second openings and face the plurality of second blocks with the plurality of second light-emitting surfaces; and
a light-shielding bar at an outer periphery of the light guide plate and extending at an intersection between the first plate body and the second plate body, for blocking penetration of light between the first plate body and the second plate body; and

a cover plate on the light guide plate and comprising a plurality of first transparent regions and a plurality of second transparent regions respectively corresponding to the plurality of first microstructures and the plurality of second microstructures;
wherein there are a plurality of first accommodating spaces corresponding to the plurality of second blocks between the plurality of first blocks, there are a plurality of second accommodating spaces corresponding to the plurality of first blocks between the plurality of second blocks, and the light-shielding bar is in a continuous S-shape at the intersection between the first plate body and the second plate body.

US Pat. No. 11,067,740

DISPLAY ASSEMBLY INCLUDING AT LEAST TWO DISPLAY DEVICES

SEAMLESS TECHNOLOGY INC.,...


1. A display assembly, comprising:at least two display devices, each of the at least two display devices comprising a front surface adapted for displaying image, the front surface defining a display area and a border area outside the display area; and
two image compensating elements at a juxtaposition of every adjacent two of the display devices, each of the two image compensating elements being on the front surface of one of the adjacent two display devices;
each of the image compensating elements comprising a light-incident surface on the display area, a light-emitting surface coupling to the light-incident surface, and a connecting surface coupling between the light-incident surface and the light-emitting surface;
wherein each of the image compensating elements comprises a plurality of light guiding channels; light guiding paths of the plurality of light guiding channels are independent from each other and extend along a direction from the light-incident surface toward the light-emitting surface;
wherein a light guiding sheet is positioned on the light-emitting surface of each of the image compensating elements; the light guiding sheet comprises a plurality of light guiding channels independent from each other; the light guiding channels of the light guiding sheet are communicately coupled to the light guiding channels of a corresponding one of the image compensating elements; an extending direction of the light guiding channels of the light guiding sheet is perpendicular to the front surface of the corresponding display device; the extending direction of the light guiding channels of the light guiding sheet and an extending direction of the light guiding channels of the image compensating element intersect to form an angle;
wherein the light guiding sheet covers the light-emitting surface of the image compensating element and extends to cover a portion of the display area of the front surface of the display device; the light guiding sheet is in direct contact with the front surface of the display device.

US Pat. No. 11,067,739

SURFACE LIGHT SOURCE DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE

SHARP KABUSHIKI KAISHA, ...


1. A surface light source device comprising: a plurality of stacked light guide plates, each having a pair of principal planes opposite to each other; and a plurality of first light emitters and a plurality of second light emitters, the first and second light emitters being disposed on respective pairs of opposite side surfaces of the light guide plates, wherein, each of the light guide plates is divided into a plurality of sections in a direction from a first side surface to a second side surface, the sections being parallel to the side surfaces, two nonadjacent sections of the sections provided for each of the light guide plates are light emission sections, each having light extraction patterns formed for reflecting incident light from the first or second light emitters so as to exit the light guide plate, the light emission sections of the light guide plates are disposed so as not to overlap one another in a stacking direction, and the light guide plates have light absorbers provided in sections of the plurality of section that are adjacent and between two consecutive ones of the light emission sections, the light absorbers absorbing light emitted by the first and second light emitters.

US Pat. No. 11,067,738

SURFACE FEATURES FOR IMAGING DIRECTIONAL BACKLIGHTS

RealD Spark, LLC, Beverl...


1. A directional backlight comprising:a waveguide comprising first and second, opposed guide surfaces for guiding light along the waveguide and an input end comprising an input surface extending between the first and second guide surfaces;
an array of light sources arranged at different input positions along the input end of the waveguide and arranged to input input light into the waveguide, the light sources having light emitting regions that are spaced apart,
the waveguide further comprising a reflective end for reflecting input light from the light sources back along the waveguide, the second guide surface being arranged to deflect the reflected input light through the first guide surface as output light, and the waveguide being arranged to image the light sources so that the output light from the light sources is directed into respective optical windows in output directions that are distributed laterally in dependence on the input positions of the light sources;
a holder portion extending across the light sources and the waveguide, the holder portion holding the light sources and the waveguide in position relative to each other; and
a resilient member provided behind the light sources and resiliently biasing the light sources towards the input end of the waveguide.

US Pat. No. 11,067,737

PIXEL CONFIGURATION AND SURFACE TREATMENT IN A TRANSPARENT DISPLAY

NANOPATH, INC., Leominst...


1. A one-way see-through illumination device, comprising:a light guide having an illumination surface and a non-illumination surface opposite to the illumination surface;
a light source at an edge of the light guide, and configured to inject light into the edge of the light guide; and
a pattern of pixels disposed on a surface of the light guide in a non-uniform arrangement, wherein the pattern of pixels and the light guide are arranged to generate transparent illumination by frustration of total internal reflection of light injected into the light guide such that light from the light source is emitted through the illumination surface,
wherein the pixels include a light diffusing layer and a light reflecting layer, and are arranged to prevent generation of a diffraction grating in the light guide.

US Pat. No. 11,067,736

DIRECTIONAL PRIVACY DISPLAY

RealD Spark, LLC, Beverl...


1. A directional display apparatus comprising:a directional backlight comprising
a waveguide comprising first and second, opposed guide surfaces for guiding input light along the waveguide, and
an array of light sources arranged to generate the input light at different input positions across the waveguide,
wherein the first guide surface is arranged to guide light by total internal reflection, the second guide surface comprises a plurality of light extraction features arranged to deflect light guided through the waveguide out of the waveguide through the first guide surface as output light and intermediate regions between the light extraction features that are arranged to guide light along the waveguide, and the waveguide is arranged to direct the output light into optical windows in output directions that are distributed in a lateral direction in dependence on the input position of the input light;
a transmissive spatial light modulator arranged to receive the output light from the first guide surface of the waveguide and to modulate it to display an image; and
a control system capable of controlling the spatial light modulator and capable of selectively operating of light sources to direct light into corresponding optical windows, wherein stray light in the directional backlight is directed in output directions outside the optical windows corresponding to selectively operated light sources,
the control system is arranged to control the spatial light modulator and the array of light sources in synchronization with each other so that:
(a) the spatial light modulator displays a primary image while at least one primary light source is selectively operated to direct light into at least one primary optical window for viewing by a primary observer, and
(b) in a temporally multiplexed manner with the display of the primary image, the spatial light modulator displays a secondary image while at least one light source other than the at least one primary light source is selectively operated to direct light into secondary optical windows outside the at least one primary optical window, the secondary image as perceived by a secondary observer outside the primary optical window obscuring the primary image that modulates the stray light directed outside the primary optical window,
wherein the secondary image comprises an inverted copy of the primary image arranged to at least partly cancel the primary image that modulates the stray light directed outside the primary optical window, as perceived by the primary observer.

US Pat. No. 11,067,735

DIRECT-LIT BACKLIGHT UNIT WITH 2D LOCAL DIMMING

Corning Incorporated, Co...


1. A backlight unit comprising:a light guide plate comprising a first major surface, an opposing second major surface, and a plurality of light extraction features;
at least one light source optically coupled to the second major surface of the light guide plate;
a rear reflector positioned proximate the second major surface of the light guide plate; and
a patterned reflective layer positioned proximate the first major surface of the light guide plate, the patterned reflective layer comprising at least one optically reflective component and at least one optically transmissive component.

US Pat. No. 11,067,734

ILLUMINATION DEVICE HAVING A PLURALITY OF DIFFERENT COLORED LEDS COUPLED TO A SOLID WAVEGUIDE

JUGANU LTD., Rosh Haain ...


1. An illumination device comprising:a solid waveguide having a first surface, a second surface opposite the first surface, and a third surface spanning the first and second surfaces;
a first LED configured to emit light of a first wavelength and embedded within the waveguide proximate the first surface, such that light from the first LED is coupled into the first surface of the waveguide;
a prism, disposed proximate the second surface of the waveguide above the first LED, for reflecting light emitted by the first LED into the waveguide; and
a plurality of second LEDs each butt-coupled to the third surface of the waveguide, such that light from each second LED is coupled into the third surface of the waveguide,
wherein the waveguide has an out-coupling region from which mixed light is emitted, the mixed light comprising light emitted from the first LED and the plurality of second LEDs.

US Pat. No. 11,067,733

WAVEGUIDE DISPLAY ELEMENT WITH AN INTERMEDIATE LAYER BETWEEN AN IN-COUPLING GRATING AND A WAVEGUIDE

DISPELIX OY, Espoo (FI)


1. A waveguide display element comprising:a plurality of waveguide layers stacked on top of each other, and
an in-coupler associated with each waveguide layer for coupling light within a predefined wavelength band into the waveguide layer,
wherein:each of the in-couplers includes:an intermediate layer arranged on the waveguide layer, the intermediate layer having intermediate layer properties, and
an in-coupling grating arranged on the intermediate layer, the grating having grating properties, and

the combination of intermediate layer properties and grating properties of each in-coupler is different with respect to other in-couplers.


US Pat. No. 11,067,732

VIRTUAL AND AUGMENTED REALITY SYSTEMS AND METHODS

Magic Leap, Inc., Planta...


1. A method of manufacturing a liquid crystal device, the method comprising:depositing a layer of liquid crystal material on a substrate; and
imprinting a pattern on the layer of liquid crystal material using an imprint template, such that molecules of the liquid crystal material are self-aligned to the pattern,
wherein the substrate is a waveguide, wherein depositing the layer of the crystal material and imprinting the pattern on the layer forms a liquid crystal in-coupling optical element.

US Pat. No. 11,067,731

TRANSFER BODY FOR OPTICAL FILM, OPTICAL FILM, ORGANIC ELECTROLUMINESCENT DISPLAY DEVICE, AND METHOD FOR MANUFACTURING OPTICAL FILM

ZEON CORPORATION, Tokyo ...


1. An optical film transfer body comprising a substrate film, and an optically anisotropic layer that is formed on the substrate film by curing a composition containing a photopolymerizable liquid crystal compound,wherein the substrate film is a stretched film, and
the optically anisotropic layer contains 2% by weight or more and 6% by weight or less of the photopolymerizable liquid crystal compound that has not been polymerized in forming the optically anisotropic layer.

US Pat. No. 11,067,730

OPTICAL FILTER AND METHOD OF MANUFACTURING AN OPTICAL FILTER

Fieldpoint (Cyprus) Limit...


1. An irradiation device comprising:a light source,
an optical filter comprising a substrate made of a material comprising an optically transparent matrix material and nano-photonic material with icosahedral or dodecahedral symmetry dispersed in the matrix material, and
a Brewster polarizer positioned between the light source and the optical filter and arranged at a Brewster angle with respect to the optical filter so as to reflect light from the light source to the optical filter at the Brewster angle, wherein the light reflected at the Brewster angle is linearly polarized.

US Pat. No. 11,067,729

METHOD FOR MANUFACTURING COLOR RESIST

SHENZHEN CHINA STAR OPTOE...


1. A method for manufacturing a color resist, comprising steps of:forming a black matrix layer on a substrate, wherein the black matrix layer comprises a first mark, a second mark, a third mark, a first hollowed-out region, a second hollowed-out region, and a third hollowed-out region;
moving a mask so as to enable an alignment mark of the mask to be aligned with the first mark, forming a first color resist and a first color block on the black matrix layer at the same time by the mask, and checking a position of the first color resist according to whether the first color block is positioned at a center of the first hollowed-out region;
moving the mask so as to enable the alignment mark to be aligned with the second mark, forming a second color resist and a second color block on the black matrix layer at the same time by the mask, and checking a position of the second color resist according to whether the second color block is positioned at a center of the second hollowed-out region; and
moving the mask so as to enable the alignment mark to be aligned with the third mark, forming a third color resist and a third color block on the black matrix layer at the same time by the mask, and checking a position of the third color resist according to whether the third color block is positioned at a center of the third hollowed-out region, wherein
the first mark/the first hollowed-out region and the second mark/the second hollowed-out region are spaced from each other by a first distance, and the first mark/the first hollowed-out region and the third mark/the third hollowed-out region are spaced from each other by a second distance;
the first distance and the second distance are configured in such manner that the first color block, the second color block, and the third color block do not overlap with one another;
the first distance H1 meets H1=(3*n1+1)*P, n1 being an integer, n1?1 or n1??1, and P being a width of a sub pixel; and
wherein the second distance H2 meets H2=(3* n2+2)*P, n2 being an integer, and n2?0 or n2??2.

US Pat. No. 11,067,728

MOVABLE DIFFRACTION GRATING, EXTERNAL-RESONATOR LASER MODULE, AND MANUFACTURING METHOD FOR MOVABLE DIFFRACTION GRATING

HAMAMATSU PHOTONICS K.K.,...


1. A movable diffraction grating comprising:a supporting portion;
a movable portion including a first surface and swingably connected with the supporting portion;
a resin layer in which a diffraction grating pattern is formed, the resin layer being provided on the first surface;
a reflection layer provided on the resin layer and along the diffraction grating pattern, the reflection layer being formed of metal; and
a stress regulation portion inducing stress on the movable portion, wherein
the first surface is caused to bend concavely by the stress.

US Pat. No. 11,067,727

METHOD OF MANUFACTURING A MULTILAYER OPTICAL ELEMENT

OSRAM OLED GMBH, Regensb...


1. A method for manufacturing a multilayer optical element, the method comprising:providing a substrate;
applying a first optical layer by:applying a first layer comprising a dielectric first material having a first refractive index;
structuring the first layer by sectionally removing the first material; and
filling first interspaces with a dielectric second material having a second refractive index different from the first refractive index so that the second material has at least the same height as the first material; and

applying at least a second optical layer by:applying a second layer comprising the first material;
structuring the second layer by sectionally removing the first material so that the first optical layer is exposed in second interspaces between second areas with the first material; and
filling the second interspaces with the second material so that the second material has at least the same height as the first material.


US Pat. No. 11,067,726

GRATINGS WITH VARIABLE DEPTHS FOR WAVEGUIDE DISPLAYS

Facebook Technologies, LL...


1. A method comprising:performing a deposition of a hard mask over a substrate;
performing a deposition of a first photoresist over the hard mask;
performing a lithographic patterning of the first photoresist to form a pattern;
performing a transfer of the pattern onto the hard mask;
performing a deposition of a second photoresist on the patterned hard mask;
performing a lithographic patterning of the second photoresist to create a modified second photoresist with a plurality of heights relative to the substrate; and
performing a partial removal of the substrate based on the plurality of heights in the modified second photoresist and the pattern defined by the patterned hard mask to form a nanoimprint mold comprising at least a plurality of different etch depths and one or more duty cycles.

US Pat. No. 11,067,725

MULTI-FOCAL COLLIMATING LENS AND HEADLIGHT ASSEMBLY FOR AN AUTOMOTIVE LOW BEAM

Lumileds LLC, San Jose, ...


1. A multi-focal collimating lens for a headlight assembly for an automotive low beam, the multi-focal collimating lens comprising:a central collimating lens portion having a light incidence surface consisting of an upper convex surface and a lower convex surface, the lower convex surface consisting of a left portion and a right portion having same respective shapes as a left portion and a right portion of the upper convex surface, the upper convex surface comprising a gap positioned along a vertical center of the upper convex surface to separate the left portion of the upper convex surface from the right portion of the upper convex surface;
two total internal reflection lens portions respectively arranged on a left side and a right side of the central collimating lens portion such that the left side and the right side are on opposing sides of a vertical symmetry plane of the multi-focal collimating lens, the two total internal reflection lens portions and the central collimating lens portion collectively sharing two focal points symmetrically located on the opposing sides of the vertical symmetry plane; and
an upper edge of the multi-focal collimating lens and a lower edge of the multi-focal collimating lens each having positions determined by the positions of the two focal points, so that the upper edge and the lower edge are positioned to define a cut-off line of the automotive low beam in a far-field light pattern of the multi-focal collimating lens, with light of the automotive low beam provided by at least one light source of the headlight assembly, the at least one light source overlapping a line connecting the two focal points.

US Pat. No. 11,067,724

FRESNEL-BASED VARIFOCAL LENS ASSEMBLY FOR VR OR AR DISPLAYS

Google LLC, Mountain Vie...


1. An apparatus comprising:a display panel configured to emit display light representative of a display image; and
a lens assembly disposed along an optical axis between the display panel and an expected position of a user's eye, the lens assembly comprising:a first phase mask plate having a first major surface facing the display panel and a second major surface opposite the first major surface, the second major surface implementing a first freeform Fresnel lens structure;
a second phase mask plate adjacent and parallel to the first phase mask plate and having a third major surface facing the second major surface and an opposing fourth major surface, the third major surface implementing a second freeform Fresnel lens structure; and
a lens control module configured to determine an amount of an adjustment to a pose of at least one of the first and second phase mask plates relative to the other of the first and second phase mask plates based on depth information associated with the display image.


US Pat. No. 11,067,723

OPTICAL TOUCH FILM, DISPLAY DEVICE INCLUDING THE SAME, AND MANUFACTURING METHOD THEREOF

Samsung Display Co., Ltd....


1. A display device comprising:a display panel;
a sensor layer comprising touch electrodes forming a sensor;
an optical film;
a first adhesive layer between the sensor layer and the optical film;
a second adhesive layer between the display panel and the sensor layer;
an organic layer on a surface of the sensor layer; and
a refractive insulating layer at a layer contacting the touch electrodes,
wherein:a refractive index of the refractive insulating layer is greater than a refractive index of the organic layer; and
the organic layer is adjacent to and in contact with the first adhesive layer or the second adhesive layer.


US Pat. No. 11,067,722

OPTICAL ELEMENT AND METHOD OF PRODUCING OPTICAL ELEMENT

Canon Kabushiki Kaisha, ...


1. An optical element comprising:a base material; and
a light-shielding film disposed in at least a part of a periphery of the base material, wherein
a film in which an alkyd resin and a melamine resin having two or more iminomethylol groups in a molecule are condensed or in which an alkyd resin and a benzoguanamine resin having two or more iminomethylol groups in a molecule are condensed is disposed on a surface of the light-shielding film.

US Pat. No. 11,067,721

TEXTURED SELF-CLEANING FILM SYSTEM AND METHOD OF FORMING SAME

GM GLOBAL TECHNOLOGY OPER...


1. A self-cleaning film system comprising:a substrate;
an anti-reflection film comprising a plurality of layers and disposed on the substrate; and
a self-cleaning film disposed on the anti-reflection film, the self-cleaning film comprising a monolayer formed from a fluorinated diamond-like carbon material and a first plurality of regions disposed within the monolayer, wherein each of the first plurality of regions includes a photocatalytic material.

US Pat. No. 11,067,719

DISTRIBUTED WEATHER MONITORING SYSTEM

Fjord Weather Systems, LL...


1. A weather monitoring system, comprising:a wireless weather station having:a sensor generating velocity information indicative of both speed and direction of movement of the wireless weather station;
a processor receiving an apparent wind signal from an anemometer, the apparent wind signal being indicative of both apparent speed and apparent direction of the wind; and
a transmitter transmitting the velocity information and apparent wind signal to a network;

a server receiving the velocity information and apparent wind signal; and
an interface displaying true wind data for the wireless weather station, the true wind data calculated from the apparent wind signal and velocity information.

US Pat. No. 11,067,718

AGGREGATING SENSOR DATA FOR ENVIRONMENT CONDITIONS

Amazon Technologies, Inc....


1. A computer-implemented method, comprising:receiving, at a first device at a first location within an area, a first image data generated by a first camera at the first location;
processing, at the first device, the first image data to determine a first portion of the first image data represents a first outdoor area;
processing, at the first device, the first portion of the first image data to determine a first outdoor light level score representative of a first outdoor ambient light level at the first location;
determining, at the first device and using the first outdoor light level score, a first location outdoor light score representative of a first outdoor light level at the first location;
sending, from the first device to a management system executing on a remote computing resource, the first location outdoor light score;
receiving, at a second device at a second location within the area, second image data generated by a second camera at the second location;
processing, at the second device, the second image data to determine a second portion of the second image data represents a second outdoor area;
processing, at the second device, the second portion of the second image data to determine a second outdoor light level score representative of a second outdoor light level at the second location;
determining, at the second device and using the second outdoor light level light score, a second location outdoor light score representative of a second outdoor ambient light level at the second location;
sending, from the second device to the management system, the second location outdoor light score;
generating, at the management system, an aggregated outdoor light score for the area using the first location outdoor light score and the second location outdoor light score;
sending to a third device at a third location within the area, the aggregated outdoor light score; and
in response to the aggregated outdoor light score, causing, at the third device, an autonomous action to be executed that includes altering an illumination level of a light at the third location.

US Pat. No. 11,067,717

OPTOELECTRONIC SENSOR AND METHOD FOR A SAFE EVALUATION OF MEASUREMENT DATA

SICK AG, Waldkirch (DE)


1. An optoelectronic sensor for detecting objects in a monitored zone, the optoelectronic sensor havingat least one light receiver for generating measurement data from received light from the monitored zone;
a safe evaluation unit that has at least two processing channels for a redundant processing of the measurement data; and
a comparison unit for comparing processing results of the processing channels to uncover errors in a processing channel,
wherein the processing channels are each configured for a determination of a signature with respect to their processing results; and wherein the comparison unit is configured for a comparison of the signatures, the signature obtained by aggregating at least a subset of safety-relevant data in small data blocks,
wherein a change in the safety-relevant data renders a change of the signature, and wherein the processing channels each have a plurality of processing stages and are configured to determine a signature in a plurality of processing stages for the processing results of said processing stage.

US Pat. No. 11,067,716

SYSTEM AND METHOD FOR A DOWNHOLE GAMMA RAY INSTRUMENT

BAKER HUGHES OILFIELD OPE...


1. A downhole logging tool, comprising:a radiation generation source operable to emit radiation into a formation surrounding the tool;
a radiation detector operable to detect backscattered radiation from the formation surrounding the tool;
a sleeve positioned around the radiation generation source, the sleeve including at least one aperture for forming a pathway for a radiation beam, emitted from the radiation generation source, to enter the formation, the sleeve being rotatable about an axis of the tool to change a position of the aperture to distinctly inspect different regions of the formation; and
a second sleeve positioned coaxially and radially outward from the sleeve, the second sleeve including at least one second aperture, wherein the pathway is formed when the at least one aperture and the at least one second aperture at least partially align.

US Pat. No. 11,067,715

SIGNAL PROCESSING TECHNIQUE FOR A METAL DETECTOR

Minelab Electronics Pty. ...


1. A method for improving a metal detector, including:processing at least one receive signal due to a receive magnetic field using at least two demodulation functions to produce two processed signals, the at least two demodulation functions are configured such that a first demodulation function is less sensitive to saline soils than a second demodulation function to produce a first processed signal; and the second demodulation function is more sensitive to high-frequency targets than the first demodulation function to produce a second processed signal; and
the second processed signal is with reduced sensitivity to slowly time-varying responses than the first processed signal or with a response that decreases with target depth beneath the coil more rapidly than the first processed signal, or both
wherein the first processed signal and the second processed signal in combination produce an output signal which is sensitive to deeply buried low-frequency targets, shallow-buried low-frequency targets and shallow-buried high-frequency targets while not being sensitive to saline soil.

US Pat. No. 11,067,714

SYSTEMS AND METHODS FOR LOCATING A METAL OBJECT


1. A device for locating an object, the device comprising:a housing including a first hole; and
a sensor carried by housing and comprising two or more electrodes that are positioned next to each other to form a substantially circular configuration, wherein the sensor includes a second hole formed in the center of the circular configuration, and wherein the second hole is axially aligned with the first hole;
further comprising one or more processors carried by the housing, the one or more processors communicatively coupled with the sensor, the one or more processors configured by machine-readable instructions to:calculate a stud location by measuring a change in capacitance from a fixed capacitance of a wall structure as the stud sensor is moved along a surface of the wall structure; and
generate one or more signals to report a result relating to a location of a stud;

wherein, the one or more processors include a charge transfer engine and the charge transfer engine uses charge transfer technology to determine the change in capacitance.

US Pat. No. 11,067,713

ELECTROSTATIC FIELD SENSOR AND SECURITY SYSTEM IN INTERIOR AND EXTERIOR SPACES

ONTECH SECURITY, SL, Sev...


1. A method for intrusion detection comprisingpropagation of an electric and magnetic field by one antenna and around the one antenna, the one antenna connected to a tuner circuit with an operating frequency less than 5 MHz; the tuner circuit consisting of a RLC circuit and a phase-stabilizing circuit;
measuring variations in the electric and magnetic field around the one antenna by the continuous detection of fluctuations in said electric and magnetic field;
molding the electric and magnetic filed generated around the one antenna by carrying out continuous measurement of the variations in the electric and magnetic filed generated around the one antenna by which the electric and magnetic field has been propagated;
determining the volume and density of an intrusion that has generated one of the variations in the electric and magnetic filed around the one antenna;
discriminating a human presence from another material or animal presence through the volume and density of the intrusion;
establishing if the human presence is authorized or unauthorized; and
emitting an encrypted signal to a switchboard via a radio frequency emitter.

US Pat. No. 11,067,712

PROTECTIVE STRUCTURE FOR A SEISMIC SOURCE ARRAY

FUGRO N.V.


1. A seismic source array comprising:a housing;
a plurality of seismic sources, each seismic source being configured for generating a seismic signal;
a protective structure attached to the housing and comprising a frame defining a protective space near the housing, wherein the plurality of seismic sources are suspended from the housing in a first position relative to the housing and arranged within the protective space defined by the protective structure;
a suspension structure suspending at least one seismic source of the plurality of seismic sources and comprising a pivotable arm structure that is rotatable relative to the frame for moving the at least one seismic source to a second position relative to the housing, wherein the second position being located outside the protective space; and
three seismic sources, wherein two of the seismic sources are suspended from the housing and configured to remain, while in use, in the first position relative to the housing, and wherein a third of the seismic sources is suspended from the housing by the suspension structure configured for moving the third seismic source to the second position relative to the housing, the third seismic source being connected to the protective structure by the pivotable arm, wherein a hoist line extends from the housing to enable operation of the pivotable arm during launch and recovery of the array.

US Pat. No. 11,067,711

TIME-REVERSED NONLINEAR ACOUSTIC DOWNHOLE PORE PRESSURE MEASUREMENTS

TRIAD NATIONAL SECURITY, ...


1. A method for determining pore pressure in a formation through a borehole having a metal casing, comprising:generating strain in a subsurface volume surrounding the borehole by focusing a low frequency, periodic acoustic signal on the subsurface volume, the low frequency, periodic acoustic signal having a first amplitude at a first time and a second amplitude at a second time, wherein the first amplitude of the low frequency, periodic acoustic signal generates first strain in the subsurface volume and the second amplitude of the low frequency, periodic acoustic signal generates second strain in the subsurface volume;
transmitting pulsed, high frequency acoustic signals through the subsurface volume simultaneously with the generation of strain in the subsurface volume with the low frequency, periodic acoustic signal;
measuring signals generated in the formation in the subsurface volume relating to particle velocity or particle acceleration in the formation;
determining the strain in the subsurface volume from the signals generated in the formation in the subsurface volume relating to the particle velocity or the particle acceleration in the formation, wherein the strain determined in the volume includes the first strain corresponding to the first amplitude of the low frequency, periodic acoustic signal and the second strain corresponding to the second amplitude of the low frequency, periodic acoustic signal;
measuring time-of-flight of the pulsed, high frequency acoustic signals through the subsurface volume as a function of strain within the subsurface volume during the generation of strain in the subsurface volume with the low frequency, periodic acoustic signal, the time-of-flight of the pulsed, high frequency acoustic signals including a first time-of-flight corresponding to the first strain and a second time-of-flight corresponding to the second strain;
determining change of the time-of-flight of the pulsed, high frequency acoustic signals as the function of the strain within the subsurface volume, the change of the time-of-flight of the pulsed, high frequency acoustic signals as the function of the strain within the subsurface volume including change from the first time-of-flight corresponding to the first strain to the second time-of-flight corresponding to the second strain;
determining nonlinear elastic parameters ?, ?, and ? based on the change of the time-of-flight of the pulsed, high frequency acoustic signals as the function of the strain within the subsurface volume, wherein determination of the nonlinear elastic parameters ?, ?, and ? includes determination of the nonlinear elastic parameter ? based on an inverse of the particle acceleration and a ratio of change in perturbed velocity to linear velocity; and
determining pore pressure in the subsurface volume based on the nonlinear elastic parameters ?, ?, and ?.

US Pat. No. 11,067,710

SYSTEM AND METHOD FOR INDIRECTLY MONITORING ONE OR MORE ENVIRONMENTAL CONDITIONS


1. A system for monitoring ionizing radiation in a target area, the system comprising:a) a first plurality of consumable nodes deployable within the target area to be exposed to the ionizing radiation, each consumable node being progressively damageable over a monitoring time as a result of exposure to the ionizing radiation;
b) a base station communicably linked to the consumable nodes and operable to detect an amount of radiation damage sustained by the consumable nodes and to determine a dosage of ionizing radiation received by any one of the consumable nodes based on a pre-determined correlation between the dosage of ionizing radiation and the amount of radiation damage sustained by the consumable node.

US Pat. No. 11,067,709

RADIATION POSITION DETECTION METHOD, RADIATION POSITION DETECTOR, AND PET APPARATUS

HAMAMATSU PHOTONICS K.K.,...


1. A radiation position detection method performed by a radiation position detector including a plurality of scintillator portions which have a plurality of segments that are arranged along an incident direction of radiation and absorb the radiation and generate scintillation light, and are two-dimensionally arranged on a plane intersecting the incident direction, and a plurality of light detectors which are arranged to correspond to the plurality of scintillator portions and output electrical signals in response to an intensity of the scintillation light, the method comprising:a first step of calculating a first centroid position in the incident direction regarding positions where the scintillation light is detected, on the basis of the electrical signals; and
a second step of specifying, on the basis of a first table showing first identification regions for identifying the plurality of segments, and the first centroid position, the segment that initially generates the scintillation light,
wherein the first identification region includesa first region corresponding to a first segment which is one of the plurality of segments,
a second region corresponding to a second segment adjacent to the first segment among the plurality of segments, on a side opposite to an incident side of the radiation with respect to the first segment, and
a third region that is located on the second region side between the first region and the second region and corresponds to the first segment, and

in the second step, in a case where the first centroid position is located in the first region or the third region, the first segment is specified as the segment that initially generates the scintillation light, and in a case where the first centroid position is located in the second region, the second segment is specified as the segment that initially generates the scintillation light.

US Pat. No. 11,067,708

PORTABLE RADIATION DETECTOR SYSTEM

SHENZHEN XPECTVISION TECH...


1. A system comprising:an apparatus suitable for detecting radiation, the apparatus comprising:(i) a first radiation absorption layer configured to generate first electrical signals from a photon of the radiation absorbed by the first radiation absorption layer, wherein the first radiation absorption layer comprises a first electrode;
(ii) an electronic system configured to process the first electrical signals, wherein the electronic system comprises:a first voltage comparator configured to compare a voltage of the first electrode to a first threshold;
a second voltage comparator configured to compare the voltage to a second threshold;
a counter configured to register a number of photons of the radiation absorbed by the first radiation absorption layer;
a controller;
wherein the controller is configured to start a time delay from a time at which the first voltage comparator determines that an absolute value of the voltage equals or exceeds an absolute value of the first threshold;
wherein the controller is configured to activate the second voltage comparator during the time delay;
wherein the controller is configured to cause the number registered by the counter to increase by one, if the second voltage comparator determines that an absolute value of the voltage equals or exceeds an absolute value of the second threshold;

(iii) a power supply; and
(iv) a communication interface configured for the electronic system to communicate with outside circuitry;

wherein the system is selected from a group consisting of a ID card, an access badge, a radiation detection pen, a piece of apparel, a wristband, a watch, a headphone, a cell phone, a cell phone accessory, a smoke detector, and a food radiation detection apparatus.

US Pat. No. 11,067,707

FOUR-SIDE BUTTABLE RADIATION DETECTOR UNIT AND METHOD OF MAKING THEREOF

REDLEN TECHNOLOGIES, INC....


1. A radiation detector unit, comprising:an interposer;
at least one radiation sensor bonded to a front side of an interposer;
an application-specific integrated chip (ASIC) bonded to a backside of the interposer by first solder balls;
a carrier board bonded to the backside of the interposer by second solder balls and located on a backside of the ASIC; and
at least one flex cable assembly attached to a respective side of the carrier board,
wherein the second solder balls have a reflow temperature that is lower than a reflow temperature of the first solder balls.

US Pat. No. 11,067,706

RADIATION IMAGE SENSING APPARATUS, RADIATION IMAGE SENSING SYSTEM, CONTROL METHOD FOR RADIATION IMAGE SENSING APPARATUS, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM

CANON KABUSHIKI KAISHA, ...


1. A radiation image sensing apparatus, comprising: an image sensing area configured to be used in image sensing operations of acquiring a radiation image corresponding to incidence of radiation, the image sensing area comprising a plurality of first pixels, each of the first pixels including a conversion element, and the sensing operations including a first image sensing operation and a second image sensing operation performed next to the first image sensing operation; a second pixel comprising a detection element and a switching element, configured to detect a radiation dose of radiation entering the image sensing area; a readout unit; and a control unit, wherein the control unit is configured to such that first charges in the detection element generated during incidence of radiation to the detection element in the first image sensing operation are reset by turning on the switching element after an end of the incidence of the radiation in the first image sensing operation, and the control unit is configured to correct a detection signal readout from the detection element via the switching element which is turned on by the readout unit during incidence of radiation in the second image sensing operation based on a correction amount acquired from a correction signal obtained from second charges that remain after resetting the first charges in the detection element, readout from the detection element by the readout unit, and detect a dose of incident radiation in the second image sensing operation based on the corrected detection signal.

US Pat. No. 11,067,705

CNN-BASED ABNORMALITY SCORE MAP FOR SPECT GAMMA CAMERA FLOOD ANALYSIS

Siemens Medical Solutions...


1. A method for determining an abnormality score map for Single-photon Emission Computed Tomography (SPECT) gamma camera flood analysis, the method comprising:extracting a plurality of image patches from an input flood image;
generating a feature vector for each image patch;
generating a per-patch abnormality score for each feature vector by comparing the feature vector against a normal flood feature dictionary comprising one or more normal flood feature vectors generated using a plurality of normal flood images;
generating an abnormality score map depicting the per-patch abnormality scores for the input flood image.

US Pat. No. 11,067,704

METHOD AND APPARATUS FOR INTELLIGENT ACQUISITION OF POSITION INFORMATION

IpVenture, Inc., San Jos...


1. A method for managing access to position data pertaining to a mobile device, the mobile device including at least a controller, a battery, battery monitoring circuitry, a position acquisition unit and a motion sensor, the mobile device capable of being battery-powered by the battery, and the position acquisition unit capable of acquiring position data pertaining to the mobile device, the method comprising:monitoring, via at least the battery monitoring circuitry, a battery level characteristic of the battery of the mobile device;
determining, at the mobile device, whether the monitored battery level characteristic is below a threshold level; and
automatically limiting, at the mobile device, usage of the position acquisition unit if the determining determines that the monitored battery level characteristic is below the threshold level, the limiting usage reduces how often the position acquisition unit is used to acquire position information though continues to acquire position information less often, thereby extending the useful life of the battery,
wherein the position acquisition unit comprises a GPS receiver, and the position acquisition unit acquires at least position data based on data received at least via the GPS receiver.

US Pat. No. 11,067,703

SHADOW RECOVERY OF A SINGLE SATELLITE SIGNAL IN A GNSS RECEIVER

Topcon Positioning Inc., ...


1. A GNSS receiver, comprising:an antenna receiving GNSS signals from a plurality of GNSS satellites;
a plurality of channels, each channel processing a single GNSS signal from a single GNSS satellite and producing phase synchronization between a reference signal and the single GNSS signal, and outputting a pseudo-phase of a signal carrier frequency of the single GNSS signal,
wherein all the channels are mutually independent of each other when receiving the GNSS signal;
a processor calculating position based on the pseudo-phases of multiple GNSS signals;
each channel detecting a shadowing of the corresponding GNSS signal;
each shadowed channel using a first group of guiding indications to detect an end of the shadowing when a measure of satellite signal power Z2Tw in the shadowed channel is above a predefined threshold, wherein the first group of guiding indications is based on pseudo-Doppler frequencies from channels that receive the GNSS signals; and
each channel including a circuit for recovering a tracking of a reappeared GNSS signal once the shadowing ends,
wherein, in each shadowed channel, the recovering includes generating a phase guiding indication based on phase local coordinates, wherein the phase guiding indication corresponds to an integer number of wavelengths to the GNSS satellite of that shadowed channel.

US Pat. No. 11,067,702

METHOD AND APPARATUS FOR SECOND ORDER INTERCEPT POINT (IP2) CALIBRATION

Samsung Electronics Co., ...


1. An electronic device comprising:a processor configured to:downconvert, by an input/output (I/O) mixer including a first mixer and a second mixer, a modulated radio frequency wave to an intermediate frequency, where the modulated radio frequency wave is input to first inputs of the first mixer and the second mixer, and where an in-phase signal, from a first digital to analog converter (DAC), and a quadrature phase signal, from a second DAC, are input to second inputs of the first mixer and the second mixer, respectively;
reduce a mixer imbalance between the first mixer and the second mixer using direct current (DC) bias voltages from the first DAC and the second DAC, the DC bias voltages being determined based on a first DAC code of the first DAC and a second DAC code of the second DAC;
filter the downconverted modulated radio frequency wave; and
convert the filtered downconverted modulated radio frequency wave to a digital signal.