US Pat. No. 9,182,220

IMAGE PHOTOGRAPHING DEVICE AND METHOD FOR THREE-DIMENSIONAL MEASUREMENT

TOPCON CORPORATION, Toky...

1. An image photographing device for three-dimensional measurement for sequentially photographing a measuring object in an
overlapping manner with a single camera, the image photographing device comprising:
a photographing section configured to photograph the measuring object to which marks having self-other identifiable identification
codes are affixed in a predetermined condition;

a mark extraction section configured to extract the marks from a photographed image photographed by the photographing section;
a code identification section configured to identify the identification codes of the marks extracted by the mark extraction
section and correlating the identification codes with mark symbols provided to the marks;

a photographed area defining section configured to identify the mark symbols of the marks in the photographed image extracted
from positions in a screen with the identified identification codes and to define and divide an area of the measuring object
in the photographed image into photographed areas each of which is surrounded by at least three marks (each of the areas including
the at least 3 marks) with identified mark symbols, and each of divided photographed areas does not overlap each other;

an area photographing time number counting section configured to count a number of photographing times of each of the photographed
areas which are involved in different photographed images;

a photographed area grouping section configured to group the photographed areas divided into at least two groups in response
to the number of photographing times of each of the photographed areas by the photographed area defining section;

a mark data inputting section configured to input positions of the marks affixed to the measuring object in a coordinate space
of a photographing range image for expressing a photographing range of the measuring object in a two-dimension or three-dimension
space while correlating the positions of the marks with the mark symbols;

a photographing range image formation section configured to connect the positions of the marks input in the photographing
range image such that the mark symbols of the marks surrounding each of the photographed areas correspond to each other and
thereby matching the photographed areas into the photographing range image; and

a display section configured to display the photographed areas matched into the photographing range image such that the photographed
areas are grouped into the at least two groups,

wherein the area photographing time number counting section is configured to count the number of times of successful extractions
of all the marks surrounding the photographed area as the number of photographing times of the photographed area.

US Pat. No. 9,140,538

OPTICAL TOMOGRAPHIC IMAGING SYSTEM AND OPTICAL TOMOGRAPHIC IMAGING METHOD TO GENERATE TOMOGRAPHIC IMAGE AND SURFACE IMAGE OF A SUBJECT

TOPCON CORPORATION, Toky...

1. An optical tomographic imaging system configured to split light emitted from a wavelength sweep light source into measuring
light and reference light, configured to radiate the measuring light onto a measuring subject, configured to combine reflection
light from the measuring subject with the reference light, configured to detect interfered light obtained by combining the
reflection light with the reference light as an interference signal, and configured to Fourier-transform the interference
signal to acquire a tomographic image of the measuring subject, the optical tomographic imaging system comprising:
a tomographic data generating unit configured to generate tomographic data of the measuring subject based on the interference
signal;

a surface data generating unit configured to carry out processing in parallel with the tomographic data generating unit and
configured to generate surface data of the measuring subject based on the interference signal;

a tomographic image constructing unit configured to construct a tomographic image that is based on the tomographic data generated
by the tomographic data generating unit;

a surface image constructing unit configured to construct a surface image that is based on the surface data generated by the
surface data generating unit;

a display image generating unit configured to generate a display image from the tomographic image and the surface image; and
a frame thinning unit configured to carry out thinning processing on the interference signal on a frame-by-frame basis so
that the interference signal is outputted at a frame rate equal to or less than a frame rate of a monitor device on which
the tomographic image and the surface image are displayed,

wherein the interference signal subjected to the thinning processing by the frame thinning unit is inputted to the tomographic
data generating unit.

US Pat. No. 9,909,871

SURVEYING INSTRUMENT

TOPCON Corporation, Toky...

1. A surveying instrument comprising; a horizontal rotating unit and a measuring unit installed on said horizontal rotating
unit,
wherein said horizontal rotating unit comprises a driving unit for rotating said measuring unit, a horizontal angle detector
for measuring horizontal angle data, a first synchronization data generating unit, a first storage unit and a first control
unit, wherein said first synchronization data generating unit outputs first synchronization data which indicate a timing at
a time of acquisition of the horizontal angle data of said horizontal angle detector, said first control unit associates said
horizontal angle data with said first synchronization data and stores in said first storage unit,

wherein said measuring unit comprises a distance measuring unit for performing a distance measurement, a vertical angle detector
for detecting a vertical angle at a time of distance measurement, a second synchronization data generating unit, a second
storage unit and a second control unit, wherein said measuring unit acquires two-dimensional measurement data based on distance
measurement data by said distance measuring unit and vertical angle data by said vertical angle detector, said second synchronization
data generating unit outputs second synchronization data which indicate timings of a time of acquisition of said distance
measurement data and a time of acquisition of said vertical angle data, said second control unit associates said two-dimensional
measurement data with said second synchronization data and stores in said second storage unit, and said horizontal angle data
and said two-dimensional measurement data can be converted to three-dimensional data based on said first synchronization data
and said second synchronization data.

US Pat. No. 9,952,091

MANAGEMENT SYSTEM FOR ILLUMINATION FACILITY

TOPCON Corporation, Toky...

1. A management system for an illumination facility comprising: an illuminance measuring instrument for measuring an illuminance of said illumination facility provided on a general road, an express way or in a tunnel, wherein the illuminance measuring instrument comprises an illuminance measuring unit, a position detector for detecting a position of said traveling vehicle, and an arithmetic device, which are mounted on a traveling vehicle,wherein said arithmetic device is configured to save a map information, positional data of an illumination lamp which is included in said illumination facility, initial data including illuminance data of said illumination facility, and said illuminance data as acquired by said illuminance measuring instrument while driving said traveling vehicle,
and wherein said arithmetic device is configured to calculate daily management data of said illumination facility based on said positional data of said traveling vehicle as detected by said position detector, said map information, and said illuminance data, and
further wherein said arithmetic device is configured to calculate a change of said illumination facility including said illumination lamp based on said initial data and said daily management data.

US Pat. No. 10,034,607

OPHTHALMOLOGICAL DEVICE

Topcon Corporation, (JP)...

1. An ophthalmological device comprising:an optical system for inspection including a photographic optical system for photographing an eyeground of a subject's eye;
a display that displays an eyeground image of the subject's eye acquired by the photographic optical system;
a subject's eye position acquiring unit that acquires a three-dimensional position of the subject's eye; and
a control unit that acquires information on positional displacement of the optical system for inspection with respect to the subject's eye on the basis of the three-dimensional position to cause a screen of the display to display two alignment index images to be varied in position with respect to a reference position of alignment preset in the display in a pseudo manner, in accordance with the information on positional displacement.

US Pat. No. 9,746,683

AUTOMATIC SURVEY INSTRUMENT

TOPCON CORPORATION, Toky...

1. An automatic survey instrument comprising:
a dichroic prism through which reflected light from a target enters;
a first reflecting surface that is provided on the dichroic prism and divides collimation light from the reflected light;
and

a second reflecting surface that is provided on the dichroic prism and divides light reflected by the first reflecting surface
into range-finding light and tracking light, wherein

between two prisms defining the second reflecting surface, an optical absorption filter that absorbs a wavelength band of
visible light is inserted, and

the second reflecting surface is formed at a border between a rear surface of the optical absorption filter with respect to
a light propagation direction and a surface of the prism on the rear side of the optical absorption filter in the light propagation
direction.

US Pat. No. 9,888,847

OPHTHALMIC EXAMINATION SYSTEM

TOPCON CORPORATION, Itab...

1. An ophthalmic examination system, comprising:
a plurality of ophthalmic examination apparatuses; and
an examination instruction apparatus used by an examiner to send instructions for examination to one of the ophthalmic examination
apparatuses, wherein

the examination instruction apparatus includes
a user interface used to enter an instruction for examination, and
a first communication unit configured to send the instruction entered by using the user interface to one of the ophthalmic
examination apparatuses in real time, and

each of the ophthalmic examination apparatuses includes
an examination optical system including an optical element applied to an eye, and a projection system configured to project
an examination light beam for examining the eye onto the eye through the optical element,

an information presentation optical system including a display, and a light guide system configured to guide a display light
beam output from the display to the eye through the optical element,

a second communication unit configured to receive the instruction sent from the examination instruction apparatus, and
a controller configured to display the instruction received by the second communication unit on the display in real time.

US Pat. No. 9,719,850

SPATIAL LIGHT MEASURING METHOD AND SPATIAL LIGHT MEASURING SYSTEM

TOPCON Corporation, Toky...

1. A spatial light measuring method which determines a soundness of an illumination facility comprising; an initial value
measurement wherein the initial value measurement includes a step of,
acquiring initial data on the ground in a state where the illumination facility is new by an illuminance measuring instrument
in a running direction of a traveling vehicle at predetermined intervals, and

a daily management measurement wherein the daily management measurement includes steps of,
mounting said illuminance measuring instrument and an image pickup device on said traveling vehicle, measuring an illuminance
while running and acquiring an image,

specifying an illuminance measuring position and an image acquiring position based on a speed of said traveling vehicle, correcting
illuminance data acquired by the measurement while running into illuminance data on the ground based on a correction coefficient
due to a distance from the ground to an illuminance measuring instrument mounting position and a correction coefficient due
to the speed of said traveling vehicle,

comparing said illuminance data as corrected with said initial data and
confirming a deteriorated state of an illumination facility based on the image as acquired.

US Pat. No. 9,921,062

SURVEYING INSTRUMENT

TOPCON Corporation, Toky...

1. A surveying instrument comprising; a horizontal rotating unit, a measuring unit installed on the horizontal rotating unit,
a coupler for mechanically coupling said horizontal rotating unit with said measuring unit, and a connector for electrically
connecting said horizontal rotating unit with said measuring unit, wherein said coupler couples said horizontal rotating unit
with said measuring unit and can separate from each other, said connector can electrically connect said horizontal rotating
unit with said measuring unit and can separate from each other,
wherein said horizontal rotating unit comprises a driving unit for rotating said measuring unit, a horizontal angle detector
for detecting a horizontal angle, and a horizontal angle control unit for calculating horizontal angle data based on a signal
from said horizontal angle detector and for controlling said driving unit, wherein said measuring unit comprises a distance
measuring unit for performing a distance measurement, a vertical angle detector for detecting a vertical angle at a time of
distance measurement, a vertical angle control unit for calculating vertical angle data based on detection results from said
vertical angle detector, a coordinate calculating unit, and a main control unit,

wherein said horizontal angle control unit transmits the horizontal angle data at the time of distance measurement to said
coordinate calculating unit via said connector based on a control signal from said main control unit and distance measurement
data by said distance measuring unit and said vertical angle data from said vertical angle control unit are inputted to said
coordinate calculating unit, and said coordinate calculating unit is constituted so as to calculate three-dimensional data
based on said horizontal angle data, said distance measurement data and said vertical angle data.

US Pat. No. 10,088,332

FLIGHT PLAN PREPARING METHOD AND FLYING VEHICLE GUIDING SYSTEM

TOPCON Corporation, Toky...

1. A flying vehicle guiding system comprising: a flying vehicle system having a measuring device installed and capable of remotely controlling, a position measuring instrument capable of measuring distance, angle and of tracking, a ground base station for controlling a flight of a flying vehicle based on measurement result of said position measuring instrument and a control device installed on said flying vehicle or on said ground base station,wherein said flying vehicle has a retro-reflector,
said position measuring instrument has a non-prism measurement function for performing a distance measurement and an angle measurement in non-prism and a prism measurement function for performing the distance measurement and the angle measurement with respect to said retro-reflector,
said control device is adapted to have a flight range as set within a flat plane according to map information, drawing or image including an object to be measured, to prepare an approximate flight plan having a two-dimensional approximate flying route as set within said flight range, to measure said approximate flying route by the non-prism measurement, to calculate a three-dimensional detailed flying route based on the measurement results and said approximate flying route, to prepare a detailed flight plan including said detailed flying route and to control said flying vehicle so as to fly in maintaining a distance between said flying vehicle system and a surface of said object to be measured at a constant value based on said detailed flight plan and a result of the prism measurement.

US Pat. No. 9,897,436

MEASURING INSTRUMENT AND SURVEYING SYSTEM

TOPCON Corporation, Toky...

1. A measuring instrument comprising: an image pickup unit for acquiring an image of a range including an object to be measured,
a distance measuring unit for two-dimensionally scanning a predetermined range in synchronization with an image acquisition
and for measuring, an arithmetic control unit and an attitude detecting unit for detecting a tilt angle of said image pickup
unit with respect to a horizontality, wherein said arithmetic control unit associates a measurement result and a detection
result of said attitude detecting unit with each pixel on a scanning locus corresponding to an acquired image.

US Pat. No. 9,782,067

OPTOMETRIC APPARATUS

TOPCON CORPORATION, Itab...

1. An optometric apparatus, comprising:
a movement mechanism system suspended from an arm; and
left and right optometry units configured to be moved by the movement mechanism system,
wherein the left and right optometry units each include
an optical element applying part configured to selectively apply a plurality of optical elements to a subject's eye,
a target presenting part configured to selectively present a plurality of visual targets to the subject's eye, and
an objective measurement part configured for performing objective refraction measurement of the subject's eye.

US Pat. No. 10,088,570

LASER SCANNER SYSTEM

TOPCON Corporation, Toky...

1. A laser scanner system, comprising two or more laser scanners installed on a movable object and a main control device, wherein said laser scanner is arranged as a TOF type which performs distance measurement by rotary projection of a pulsed light, and wherein said main control device produces a selection signal which selects said laser scanners per each light emission of the pulsed light, said laser scanner, which is alternately selected based on said selection signal, performs distance measurement by emitting the pulsed light, wherein said laser scanner, which receives a reflected pulsed light from one projecting point and performs distance measurement at the same time, is a selected one,wherein said laser scanner has a distance measuring unit, and wherein said distance measuring unit has a light emitting source for emitting the pulsed light and a distance measuring light detector for receiving a reflection light from an object to be measured, and said distance measuring unit makes said light emitting source to emit based on said selection signal and said main control device is configured to restrict said distance measuring light detector so as to detect said reflection light from said selection signal until a next selection signal is issued.

US Pat. No. 10,145,735

ELECTROMAGNETIC WAVE MEASURING DEVICE, ELECTROMAGNETIC WAVE MEASURING METHOD, AND PROGRAMS THEREFOR

TOPCON CORPORATION, Itab...

1. An electromagnetic wave measuring device for measuring illuminance, comprising:a measurement data receiver configured to receive data of measurement values of electromagnetic waves as the illuminance that are measured at multiple positions;
processing circuitry configured to examine a measurement value selected from among the data to detect an abnormal value in the data by comparing the selected measurement value with an average value of the measurement values, a measurement value measured at a position that is spatially adjacent to a position at which the selected measurement value is measured, and a measurement value measured at a time different from that for the selected measurement value, and to cause a display to display a position at which the abnormal value is measured.

US Pat. No. 9,979,324

METHOD FOR CONTROLLING ULTRASONIC MOTOR AND SURVEYING INSTRUMENT FOR THE SAME

TOPCON CORPORATION, Toky...

1. A method for controlling an ultrasonic motor that drives a rotary shaft of a surveying instrument in response to a drive signal with a variable frequency, whereinin a low-speed rotation range, the low-speed rotation range being a speed range in which the ultrasonic motor cannot be continuously driven to rotate even if the drive signal is continuously applied,
the ultrasonic motor is controlled by a first drive signal in which a square wave is formed by applying and stopping the drive signal in control cycles, in a range of rotation speed of the rotary shaft from zero to a first rotation speed,
the ultrasonic motor is controlled by a second drive signal in which rises or falls of the square wave are sloped, in a range from the first rotation speed to a second rotation speed,
the ultrasonic motor is controlled by a third drive signal in which rises and falls of the square wave are sloped, in a range from the second rotation speed to a third rotation speed, and
in a range higher than the third rotation speed, the range being a speed range in which the ultrasonic motor comes out of the low-speed rotation range,
the ultrasonic motor is controlled by a fourth drive signal in which the drive signal is continuously applied.

US Pat. No. 9,869,347

SLIDE GUIDE UNIT AND SURVEYING INSTRUMENT

TOPCON Corporation, Toky...

1. A slide guide unit comprising; a guide base having V-grooves formed on both the side end faces in parallel, a slide block
having a facing surface facing one of said V-grooves on both the side ends, conical recesses formed at two positions on said
facing surface facing said one V-groove with a predetermined interval, first steel balls fitted in said conical recesses and
fitted in said one V-groove, a steel ball support plate with spring action as disposed on a side surface of said slide block
on said other V-groove side and a necessary number of second steel balls as fitted in a steel ball holding groove and said
other V-groove, wherein said steel ball support plate has said steel ball holding groove facing said other V-groove, wherein
said steel ball support plate presses said second steel balls to said other V-groove and said slide block is movable along
said one V-groove side and said other V-groove side via said first steel balls and said second steel balls.

US Pat. No. 9,823,354

ILLUMINANCE MEASURING SYSTEM

TOPCON Corporation, Toky...

1. An illuminance measuring system comprising; an illuminance measuring instrument which comprises a first communication unit
and is moved by a moving vehicle, a position measuring means which comprises a second communication unit and is capable of
measuring a three-dimensional position of said illuminance measuring instrument and a data collector which comprises a third
communication unit and a storage unit for storing positional information data of a predetermined measuring point, wherein
said data collector moves said moving vehicle to said measuring point based on a position of said illuminance measuring instrument
as measured by said position measuring means and said positional information data, an illuminance is measured by said illuminance
measuring instrument and a position of said illuminance measuring instrument at the time of illuminance measurement is measured
by said position measuring means, and wherein said data collector obtains an illuminance measurement result from said illuminance
measuring instrument via said first communication unit and said third communication unit, obtains a measuring position from
said position measuring means via said second communication unit and said third communication unit, and collects the illuminance
measurement result and the measuring position in association with each other, and wherein said position measuring means includes
a laser surveying instrument which comprises a tracking unit, a distance measuring unit, a horizontal angle measuring unit,
an elevation angle measuring unit and said second communication unit, and an omnidirectional prism provided at a known position
on said moving vehicle, wherein said illuminance measuring instrument is provided at a known position with respect to said
moving vehicle, and wherein said laser surveying instrument is adapted to track said omnidirectional prism, to perform a distance
measurement, a horizontal angle measurement and an elevation angle measurement, and to transmit the measurement results to
said data collector via said second communication unit.

US Pat. No. 10,182,721

FUNDUS IMAGING APPARATUS

TOPCON CORPORATION, Itab...

1. A fundus imaging apparatus, comprising:a light source;
an optical scanner configured to scan a fundus of a subject's eye with light from the light source;
an optical fiber including a plurality of optical waveguides;
a light guide system configured to guide the light returning from the fundus to an entrance end of the optical fiber; and
a photodetector configured to detect light output from each of at least three regions at an exit end of the optical fiber;
wherein a first image is formed based on a detection result of light output from a first region of the at least three regions, and a second image is formed based on detection results of light output from two or more regions of the at least three regions other than the first region, optical waveguides of the optical fiber in the two or more regions other than the first region being arranged at a position off of an optical axis of a light guide section, and
wherein an entrance end of at least one of the optical waveguides included in the first region is arranged on an optical axis of the light guide system,
wherein the first region is a detection area of light in a center area of a point image of a fundus conjugate position,
wherein the two or more regions other than the first region are a detection area of light around the center area of the point image of the fundus conjugate position,
wherein the first image is a confocal image and the second image is a non-confocal image.

US Pat. No. 10,094,076

SURVEYING INSTRUMENT, SURVEYING INSTRUMENT USAGE METHOD, AND CONSTRUCTION MACHINE CONTROL SYSTEM

TOPCON CORPORATION, Toky...

1. A surveying instrument at least having an angle measuring part measuring an angle relative to an object to be measured, comprising:an error detecting part detecting a mechanical error reflected in a measurement angle measured by the angle measuring part;
a correction processing part receiving a measurement angle measured by the angle measuring part and outputting as a measurement angle an angle acquired by cancelling the mechanical error detected by the error detecting part from the measurement angle;
a driving part freely changing and adjusting a measurement posture;
an initial posture instructing part instructing the driving part to sequentially take a normal posture form and a reverse posture form for acquiring installation position information on the condition that a start switch is activated;
an initial posture determining part determining the normal posture form and the reverse posture form taken based on the instruction from the initial posture instructing part, the initial posture determining part instructing the error detecting part to detect the mechanical error at the time of the normal posture form and at the time of the reverse posture form; and
an error calculating part calculating a representative mechanical error from a mechanical error at the time of the normal posture form and a mechanical error at the time of the reverse posture form detected by the error detecting part.

US Pat. No. 9,919,341

ULTRASONIC MOTOR AND SURVEYING INSTRUMENT

TOPCON Corporation, Toky...

1. An ultrasonic motor, which is an ultrasonic motor provided on a shaft end of a rotation shaft supported rotatably, wherein
an output shaft of said ultrasonic motor is connected to said rotation shaft, a stator is rotatably provided on said output
shaft, a rotor is fixed to said rotation shaft, a vibration generating component for generating an ultrasonic vibration is
provided on either one of said rotor or said stator, said rotor and said stator are constituted to make a relative rotation
by the ultrasonic vibration, a whirl-stop unit is provided between said stator and a fixed side for supporting said rotation
shaft,
wherein said whirl-stop unit has a joint holder provided on said fixed side and a connection element provided on said stator,
wherein said joint holder has a ball holder for pressing a metal ball to said connection element by a compression spring in
a circumferential direction and a connection pin holding said connection element between said ball holder and said connection
pin, spanning over said joint holder and capable of tilting and wherein said whirl-stop unit restricts a displacement of said
connection element in a rotating direction and absorbs a displacement in a radial direction between said joint holder and
said connection element by tilting of said connection pin.

US Pat. No. 9,932,719

CONTROL SYSTEM FOR CONSTRUCTION MACHINE

TOPCON Corporation, Toky...

1. A control system for a construction machine comprising: a construction machine for performing a civil engineering work and a measuring instrument for measuring a position and an attitude of said construction machine,wherein said construction machine comprises at least two targets installed at positions as required on said construction machine, a tilt detecting component for detecting a tilt in a front-back direction, a driving unit for driving said construction machine, a machine control unit for controlling said driving unit and a machine communication unit capable of communicating with said measuring instrument,
wherein said measuring instrument comprises a distance measuring unit for projecting a distance measuring light, receiving a reflected distance measuring light and performing a distance measurement, an optical axis deflecting unit provided in a common optical path of the distance measuring light and the reflected distance measuring light and for deflecting the optical axes of the distance measuring light and the reflected distance measuring light at the same deflecting angle in the same direction, a projecting direction detecting unit for detecting a deflection angle and a deflecting direction provided by said optical axis deflecting unit and a measurement control unit for determining a three-dimensional position of a measuring point based on a distance measurement result of said distance measuring unit and a detection result of said projecting direction detecting unit and transmitting a measurement result to said machine control unit, wherein said measurement control unit controls said optical axis deflecting unit, allows said distance measuring unit to alternately sight said targets and alternately measure said targets by time division and calculates a direction and front-back and left-right tilts of said construction machine based on three-dimensional positions of said targets and a detection result of said tilt detecting component, and said machine control unit controls said driving unit based on a calculation result of said measurement control unit.

US Pat. No. 10,211,387

METHOD FOR CONTROLLING ULTRASONIC MOTOR AND SURVEYING INSTRUMENT FOR THE SAME

TOPCON CORPORATION, Toky...

1. A method for controlling an ultrasonic motor that drives a rotary shaft of a surveying instrument in response to a drive signal generated by a digital processor-controlled drive circuit capable of generating control signals at variable frequencies, wherein in a low-speed rotation range of the ultrasonic motor the drive signal is not continuously applied to the ultrasonic motor, and the digital processor-controlled drive circuit controls a ratio of an acceleration period as a time of application of the drive signal in a control cycle, the digital processor-controlled drive circuit:equally divides each control cycle into eight sections including 0th to 7th sections, and regularly shifts a starting time of the acceleration period for subsequent control cycles by the following steps:
the acceleration period in the n-th control cycle (wherein n is a natural number) is started from the beginning of the 0th section, the acceleration period in the n+1-th cycle is started from the beginning of the fourth section, the acceleration period in the n+2-th cycle is started from the beginning of the fourth section, and the acceleration period in the n+3-th cycle is started from the beginning of the 0th section, and this process is repeated, the starting time of the acceleration period is shifted to the sections |0, 4, 4, 0|.

US Pat. No. 10,139,224

MEASURING DEVICE

TOPCON Corporation, Toky...

1. A measuring device comprising; a leveling unit, a measuring device main body provided on said leveling unit, a control unit, a first tilt angle measuring device for detecting a horizontality with high accuracy, and a second tilt angle measuring device for detecting a tilt angle in a wider range than a range of said first tilt angle measuring device and having a higher responsiveness than a responsiveness of said first tilt angle measuring device,wherein said control unit, said first tilt angle measuring device and said second tilt angle measuring device are provided in said measuring device main body and
wherein said control unit drives said leveling unit based on a detection result of said second tilt angle measuring device, performs a rough leveling until a tilt angle detected by said second tilt angle measuring device reaches within a range in which said first tilt angle measuring device is capable of detecting and levels said measuring device main body horizontally based on a detection result of said first tilt angle measuring device.

US Pat. No. 10,123,700

OPHTHALMIC APPARATUS AND ALIGNMENT METHOD FOR OPHTHALMIC APPARATUS

TOPCON CORPORATION, Itab...

1. An ophthalmic apparatus comprising:an apparatus main body including an infrared irradiation system configured to irradiate a subject's eye with infrared light and an infrared detection system configured to detect the infrared light from the subject's eye;
a support portion configured to support a position of the face of a subject from the subject's eye;
a driving unit configured to align an axis of the apparatus main body with the subject's eye and also perform distance adjustment of the apparatus main body to the subject's eye by relatively moving the apparatus main body and the support portion;
a visible light irradiation system placed coaxially with the apparatus main body and configured to irradiate the subject's eye with visible light;
not less than two photographing devices configured to substantially simultaneously photograph the subject's eye from different directions;
a first alignment detection unit configured to acquire Purkinje images of the subject's eye, originating from the infrared light, from not less than two photographed images of the subject's eye obtained by the two photographing devices and detect a position of the subject's eye from the Purkinje images;
a second alignment detection unit configured to acquire a scattered light image of a cornea of the subject's eye, originating from the visible light, obtained by at least one of the two photographing devices and detect a vertex of the cornea based on the scattered light image; and
a drive control unit configured to align the apparatus main body with the subject's eye by controlling the driving unit based on a detection result obtained by the first alignment detection unit and also perform distance adjustment or alignment and distance adjustment of the apparatus main body with respect to the subject's eye by controlling the driving unit based on a detection result obtained by the second alignment detection unit.

US Pat. No. 10,067,233

ILLUMINANCE MEASURING SYSTEM

TOPCON Corporation, Toky...

1. An illuminance measuring system comprising; an illuminance measuring instrument provided on a UAV (Unmanned Air Vehicle) with a first communication device, and is moved, a position measuring means capable of measuring a three-dimensional position of said illuminance measuring instrument and including a second communication device, and a data collector having a third communication device and a memory device for storing positional information data of a predetermined measuring point, wherein said data collector moves said UAV to said measuring point based on a position of said illuminance measuring instrument as measured by said position measuring means and said positional information data, an illuminance is measured by said illuminance measuring instrument and a position of said illuminance measuring instrument at the time of illuminance measurement is measured by said position measuring means, and wherein said data collector obtains an illuminance measurement result from said illuminance measuring instrument via said first communication device and said third communication device, obtains a measuring position from said position measuring means via said second communication device and said third communication device, and collects the illuminance measurement result and the measuring position in association with each other.

US Pat. No. 10,215,561

METHOD OF DESIGNING CONTAINER OF LIQUID REFLECTION INCLINATION SENSOR, INCLINATION SENSOR INCLUDING THE CONTAINER, AND METHOD OF PRODUCING INCLINATION SENSOR INCLUDING THE CONTAINER

TOPCON CORPORATION, Toky...

1. A method of designing a container of a liquid reflection inclination sensor, comprising:a liquid surface calculating step that calculates a shape of a liquid surface of a liquid in a horizontal direction “x” and a vertical direction “y” by utilizing the Young-Laplace formula and the hydrostatic pressure formula, the liquid surface formed on a plate extending vertically and infinitely with respect to a horizontal part of the liquid surface;
an optical simulation step that obtains a light receiving pattern by reflecting a dark field pattern irradiated from an imaginary light source on an imaginary mirror plane having the shape of the liquid surface; and
a container adjusting step that adjusts a shape of a cylindrical container for enclosing the liquid by judging whether image accuracy of the light receiving pattern satisfies demanded sensor accuracy.

US Pat. No. 10,146,230

CONTROL DEVICE, OPTICAL DEVICE, AND CONTROL METHOD FOR TRACKING UNMANNED AERIAL VEHICLE, AND SYSTEM AND PROGRAM THEREFOR

TOPCON CORPORATION, Itab...

1. A control device that controls tracking of an unmanned aerial vehicle,wherein, the unmanned aerial vehicle includes a mounted reflective prism, and the control device uses a total station configured to search for the reflective prism by using light for searching, and when failing to capture the reflective prism during searching for the reflective prism by using light for searching, the control device directs an optical axis of the total station to a position of the reflective prism where the reflective prism existed at a time as previously captured by the light used for searching.

US Pat. No. 10,324,183

UAV MEASURING APPARATUS AND UAV MEASURING SYSTEM

TOPCON Corporation, Toky...

1. An unmanned aerial vehicle (UAV) measuring apparatus comprising: a flying vehicle, a laser scanner mounted on said flying vehicle and for performing two-dimensional scanning with a reference optical axis extending in an approximately vertically downward direction as the center, an image pickup unit having an image pickup optical axis parallel to said reference optical axis and a control arithmetic component, wherein said control arithmetic component is configured to synchronize said two-dimensional scanning performed by said laser scanner with an image pickup performed by said image pickup unit, and to correspond a scanning locus obtained by said two-dimensional scanning with an acquired image, andwherein said control arithmetic component is configured to use a plurality of images with overlapping portions and said scanning loci, and to determine point where said scanning loci intersect with each other as a connecting point, and to connect said images with said scanning loci based on said connecting point.

US Pat. No. 10,151,665

LENS METER

TOPCON CORPORATION, Toky...

1. A lens meter comprising:a measurement optical system that projects measurement light to a test lens, and receives the measurement light which has passed through the test lens;
a control part that calculates an optical characteristic value of the test lens based on the received measurement light, and controls the measurement optical system;
a display part that displays the optical characteristic value by control of the control part; and
an imaging part that obtains a lens image of the test lens, wherein
the control part generates a mapping image showing distribution of the optical characteristic value of the test lens based on the optical characteristic value and position information of a measurement position of the optical characteristic value, generates a superimposed image in which the mapping image is superimposed onto the lens image, and displays the superimposed image on the display part.

US Pat. No. 10,080,496

OPHTHALMOLOGICAL DEVICE

Topcon Corporation, (JP)...

1. An ophthalmological device comprising:an optical system for inspection including a photographic optical system for photographing an eyeground of a subject's eye;
a display that displays an eyeground image of the subject's eye acquired by the photographic optical system;
a subject's eye position acquiring unit that acquires a three-dimensional position of the subject's eye; and
a control unit that acquires information on positional displacement of the optical system for inspection with respect to the subject's eye on the basis of the three-dimensional position to cause a screen of the display to display two alignment index images to be varied in position with respect to a reference position of alignment preset in the display in a pseudo manner, in accordance with the information on positional displacement.

US Pat. No. 10,330,788

MEASURING INSTRUMENT

TOPCON Corporation, Toky...

1. A measuring instrument comprising; a measuring instrument main unit and an installment base unit for rotatably supporting said measuring instrument main unit in an up-to-bottom direction and in a left-to-right direction, wherein said measuring instrument main unit has a measuring unit for projecting a distance measuring light toward an object to be measured and for performing a distance measurement by receiving a reflected light from the object to be measured, and an attitude detecting device integrally provided with said measuring unit, wherein said attitude detecting device has tilt sensors for detecting a horizontality and relative tilt angle detectors for tilting said tilt sensors so that the horizontality is detected by said tilt sensors and for detecting a relative tilt angle between said measuring unit and said tilt sensors under such condition that said tilt sensors detect the horizontality, and wherein said installment base unit has an up-to-bottom motor for rotating said measuring instrument main unit in the up-to-bottom direction, a left-to-right motor for rotating said measuring instrument main unit in the left-to-right direction and a left-to-right angle detector for detecting a rotation angle in the left-to-right direction, and wherein the distance measurement of the object to be measured is performed by said measuring instrument main unit, a vertical angle of a measuring point is determined based on the result of the tilt detection by the attitude detecting device, and a horizontal angle is measured based on the result of the detection by said left-to-right angle detector.

US Pat. No. 10,176,615

IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, AND IMAGE PROCESSING PROGRAM

TOPCON CORPORATION, Itab...

1. An image processing device comprising:an image data receiving unit configured to receive data of a first still image and a second still image, which are taken from different points of view and contain the same object;
a composited image generating unit configured to project the first still image and the second still image on a projection sphere and thereby generate a composited image;
a designation receiving unit configured to receive designation of a specific position in the composited image;
a selecting unit configured to select one of the first still image and the second still image, which contains the designated specific position;
a point cloud position data obtaining unit configured to obtain three-dimensional point cloud position data that is measured by a laser scanner;
an image and point cloud image superposing unit configured to generate a superposed image by superposing the composited image and a point cloud image, the point cloud image being obtained by projecting points of the three-dimensional point cloud position data on the projection sphere; and
a three-dimensional position obtaining unit configured to obtain a three-dimensional position of the specific position that is designated in the composited image, based on the superposed image.

US Pat. No. 10,302,483

MEASURING DEVICE, MEASURING METHOD, AND PROGRAMS THEREFOR

TOPCON CORPORATION, Toky...

1. A measuring device for measuring illuminance of light from a lighting facility in a field, the device comprising:circuitry configured to
obtain a position in the field of a reflective prism, which is measured by a position measuring device that measures a position of the reflective prism by using distance measuring light reflected back from the reflective prism;
obtain an illuminance of the light from the lighting facility, which is measured by an illuminometer of a device that has the reflective prism; and
store information of the obtained position in the field of the reflective prism, and information of the illuminance of the light from the lighting facility in association with each other.

US Pat. No. 10,275,916

DISPLAY METHOD OF ROAD PROPERTY AND DISPLAY DEVICE OF ROAD PROPERTY

TOPCON CORPORATION, Itab...

1. A display method of a road property comprising the steps of:acquiring, using a data acquiring device, measurement data on a spaced amount from a measurement reference plane at each point of a road surface measured for a predetermined road width along a measurement path of a road to be measured;
setting, using a display and a unit area setting means thereof, a unit area to become a unit of processing based on the measurement data;
setting, using the display and a model plane setting means thereof, a model plane in the unit area from the measurement data in the unit area, and generating point group data indicating a spaced amount from the model plane at each point of the unit area;
generating, using the display and a spaced amount display generating means thereof, spaced amount display data displaying shading or hue corresponding to a spaced amount specified with the point group data in a contour of the road; and
determining at least one repair state of the road by simultaneously displaying, on the display, a road image of the road together with a spaced amount image based on the spaced amount display data corresponding to a specified area of the road, the spaced amount image showing an uneven state of the road surface.

US Pat. No. 10,275,940

IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, AND IMAGE PROCESSING PROGRAM

TOPCON CORPORATION, Itab...

1. An image processing device comprising:a display controlling unit that:
displays an aerial photographic image and a wide area image at different positions on a display, the wide area image showing map information;
displays a mark on the wide area image, the mark indicating a photographing position of the aerial photographic image; and
highlights a part of an edge of the aerial photographic image and a part of the mark to determine a corresponding relationship between a direction of the aerial photographic image and a direction of the mark,
wherein each of the aerial photographic image and the mark has a quadrangular shape, one of the four edges of the aerial photographic image and one of the four sides of the mark are highlighted, and the highlighted edge shows a corresponding relationship between a direction of the aerial photographic image and a direction of the mark.

US Pat. No. 10,307,058

OPHTHALMOLOGIC APPARATUS

TOPCON CORPORATION, Itab...

1. An ophthalmologic apparatus comprising:a measurement optical system including a light source and an optical element for performing at least one of imaging an eye and measuring a property of the eye;
a support configured to support face of a subject;
a movement mechanism that moves the measurement optical system and the support relative to each other;
an alignment optical system including a light beam projector that projects an indicator for performing alignment of the measurement optical system with respect to the eye onto an anterior segment of the eye;
two or more imagers configured to photograph the anterior segment of the eye, onto which the indicator is being projected, substantially simultaneously from different directions;
a data processor including circuitry configured to operate as an analyzer that analyzes two or more photography images captured substantially simultaneously by the two or more imagers to specify position of the eye, the analyzer including
an indicator image detector that analyzes each of the two or more photography images to detect Purkinje images as images of the indicator, and
a position specifier that specifies a position of a corneal vertex as the position of the eye based on positions of the detected Purkinje images detected from the two or more photography images, and a corneal radius of curvature; and
a controller configured to control the movement mechanism based on the position specified by the analyzer.

US Pat. No. 10,281,271

SURVEYING INSTRUMENT

TOPCON Corporation, Toky...

1. A surveying instrument comprising: a frame unit provided capable of rotating horizontally via a horizontal rotation shaft, a telescope unit provided capable of rotating vertically via a vertical rotation shaft in a recessed portion formed in said frame unit, a vertical rotation driving unit in which a vertical output shaft is connected to said vertical rotation shaft, and a whirl-stop unit provided on an outer side of a side plate of said frame unit along said side plate and connecting a stator of said vertical rotation driving unit and said frame unit to each other, wherein said whirl-stop unit restricts a rotation of said stator.

US Pat. No. 10,258,234

OPHTHALMOLOGIC APPARATUS

TOPCON CORPORATION, Itab...

1. An ophthalmologic apparatus comprising:a measurement optical system including a light source and an optical element for performing at least one of imaging an eye and measuring a property of the eye;
a support configured to support face of a subject;
a movement mechanism that moves the measurement optical system and the support relative to each other;
an alignment optical system including a light beam projector that projects an indicator for performing alignment of the measurement optical system with respect to the eye onto an anterior segment of the eye;
two or more imagers configured to photograph the anterior segment of the eye, onto which the indicator is being projected, substantially simultaneously from different directions;
a data processor including circuitry configured to operate as an analyzer that analyzes two or more photography images captured substantially simultaneously by the two or more imagers to specify position of the eye, the analyzer including
an indicator image detector that analyzes each of the two or more photography images to detect Purkinje images as images of the indicator, and
a position specifier that specifies a position of a corneal vertex as the position of the eye based on positions of the detected Purkinje images detected from the two or more photography images, and a corneal radius of curvature; and
a controller configured to control the movement mechanism based on the position specified by the analyzer.

US Pat. No. 10,240,976

MEASURING DEVICE, MEASURING METHOD, AND PROGRAMS THEREFOR

TOPCON CORPORATION, Itab...

1. A device for measuring illuminance of illumination light, the device comprising:a measurement planned position data receiving unit that receives data of a three-dimensional position of a measurement planned position that is a candidate at which illuminance of the illumination light is measured by an illuminometer, which is fixed on a reflective prism;
a position data receiving unit that receives data of a three-dimensional position of the illuminometer that is obtained by measuring a position of the reflective prism by using laser light of a position measuring device; and
a graphical user interface controlling unit that displays a relationship between the three-dimensional position of the measurement planned position and the three-dimensional position of the illuminometer, on a display,
wherein the graphical user interface controlling unit displays distances in a horizontal direction and a vertical direction from the three-dimensional position of the illuminometer to the three-dimensional position of the measurement planned position, on the display, as a result of comparison between the three-dimensional position of the measurement planned position and the three-dimensional position of the illuminometer.

US Pat. No. 10,198,632

SURVEY DATA PROCESSING DEVICE, SURVEY DATA PROCESSING METHOD, AND SURVEY DATA PROCESSING PROGRAM

TOPCON CORPORATION, Toky...

1. A survey data processing method comprising:obtaining multiple first photographed images respectively containing at least one of multiple targets arranged on a ground, the multiple first photographed images being taken from the ground by a camera so that each of the multiple targets are photographed;
measuring a location of each of the multiple targets by a total station or a global navigation satellite system (GNSS);
generating a 3D reference point model by referring to the measured locations of the multiple targets;
obtaining multiple second photographed images respectively containing at least one of the multiple targets, by photographing the ground multiple times from a mobile vehicle that is traveling, so that each of the multiple targets are photographed;
detecting the image of each of the multiple targets from the multiple second photographed images;
extracting multiple feature points from the multiple second photographed images;
calculating a three-dimensional position of each of the extracted multiple feature points by an intersection method;
calculating a three-dimensional position of each of the multiple targets by referring to the three-dimensional position of each of the feature points corresponding to the multiple targets, to generate a 3D relative model by referring to the three-dimensional position of each of the multiple targets;
identifying a matching relationship between the 3D reference point model and the 3D relative model;
identifying a three-dimensional position of each of the multiple targets in the 3D relative model by referring to the matching relationship between the 3D reference point model and the 3D relative model;
calculating image coordinate values in a stereoscopic image of the multiple targets used for generating the 3D relative model, to obtain a position in the second photographed image of the target, the stereoscopic image being constituted of the multiple second photographed images used for generating the 3D relative model;
setting a search area in the second photographed image by using the position in the second photographed image of the target;
aligning the directions of the second photographed image and the image of the search area by using a projection conversion;
obtaining a matching relationship between the first photographed image and the second photographed image by identifying a matching relationship between the second photographed image and the image of the search area of which the directions are aligned with each other; and
calculating a location of the target in the second photographed image by referring to the matching relationship between the first photographed image and the second photographed image.

US Pat. No. 10,185,026

MEASURING INSTRUMENT

TOPCON Corporation, Toky...

1. A measuring instrument comprising; a light emitting element for emitting a distance measuring light, a distance measuring light projecting unit for projecting said distance measuring light, a light receiving unit for receiving a reflected distance measuring light, a light receiving element for receiving said reflected distance measuring light and for producing a light receiving signal, a distance measuring unit for performing a distance measurement based on the light receiving signal from said light receiving element, a first optical axis deflecting unit disposed on a projection optical axis of said distance measuring light and for deflecting an optical axis of said distance measuring light at a deflection angle as required and in a direction as required, a second optical axis deflecting unit disposed on a light receiving optical axis and for deflecting said reflected distance measuring light at the same deflection angle and in the same direction as said first optical axis deflecting unit, a projecting direction detecting unit for detecting a deflection angle and a deflecting direction as performed by said first optical axis deflecting unit, an image pickup unit which has an image pickup optical axis having a known relation with said projection optical axis and for acquiring image data including an object to be measured, a display unit for displaying an image acquired by said image pickup unit, a control unit for controlling the distance measurement by said distance measuring unit and for controlling deflections of optical axes of said distance measuring light and said reflected distance measuring light, and a measuring instrument main body adapted to accommodate said light emitting element, said distance measuring light projecting unit, said light receiving unit, said light receiving element, said distance measuring unit, said first optical axis deflecting unit, said second optical axis deflecting unit, said projecting direction detecting unit, said image pickup unit, said display unit, and said control unit, to be rotatably supported in an up-and-down direction and in a left-and-right direction by a supporting unit, and to be rotated in the up-and-down direction and in the left-and-right direction by a rotation driving unit, wherein said image pickup unit is configured so as to have a field angle larger than a deflection area of said distance measuring light deflected by said first optical axis deflecting unit, and said object to be measured is designated on said image, wherein said distance measuring light is projected through said first optical axis deflecting unit, said reflected distance measuring light is received by said light receiving element through said second optical axis deflecting unit, and wherein, by designating said object to be measured on said image, said control unit controls said projection optical axis to be directed toward said object to be measured by said first optical axis deflecting unit, or said control unit controls to scan said object to be measured or a measurement target area by said distance measuring light within a range of the field angle of said image pickup unit by said first optical axis deflecting unit, and further said control unit acquires three-dimensional data of said object to be measured or said measurement target area based on a result of the distance measurement of said distance measuring unit and on a detection result of said projecting direction detecting unit and displays said three-dimensional data as acquired on said image of said display unit.

US Pat. No. 10,048,063

MEASURING INSTRUMENT AND SURVEYING SYSTEM

TOPCON Corporation, Toky...

1. A measuring instrument comprising: an image pickup unit for acquiring an image of a range including an object to be measured, a distance measuring unit for projecting a pulsed light, for two-dimensionally scanning a predetermined range in synchronization with an image acquisition and for measuring for each pulsed light, an arithmetic control unit, an attitude detecting unit for detecting a tilt angle of said image pickup unit with respect to a horizontality and a GPS device, wherein said arithmetic control unit associates a measurement result and a detection result of said attitude detecting unit with each pixel on a scanning locus corresponding to an acquired image, and further wherein said arithmetic control unit is configured to associate a measurement result of said distance measuring unit for each pulsed light with position measurement results of said GPS device and to correct cumulative errors of the measurement result of said distance measuring unit.

US Pat. No. 10,345,489

ANTIREFLECTION FILM, OPTICAL ELEMENT AND OPHTHALMOLOGY APPARATUS

TOPCON CORPORATION, Toky...

13. An antireflection film provided on a substrate, the antireflection film comprising:as viewed from the substrate,
a first layer made of Nb2O5 of which a refractive index is 2.39526 and of which a physical film thickness is 16.07 nm,
a second layer made of SiO2 of which a refractive index is 1.45998 and of which a physical film thickness is 24.33 nm,
a third layer made of Nb2O5 of which a refractive index is 2.39526 and of which a physical film thickness is 41.6 nm,
a fourth layer made of SiO2 of which a refractive index is 1.45998 and of which a physical film thickness is 7.99 nm,
a fifth layer made of Nb2O5 of which a refractive index is 2.39526 and of which a physical film thickness is 83.31 nm,
a sixth layer made of SiO2 of which a refractive index is 1.45998 and of which a physical film thickness is 21.46 nm,
a seventh layer made of Nb2O5 of which a refractive index is 2.39526 and of which a physical film thickness is 24.55 nm,
an eighth layer made of SiO2 of which a refractive index is 1.45998 and of which a physical film thickness is 18.53 nm,
a ninth layer made of MgF2 of which a refractive index is 1.38531 and of which a physical film thickness is 78.51 nm,
a tenth layer made of SiO2 of which a refractive index is 1.45998 and of which a physical film thickness is 12.63 nm, and
an air layer, wherein the substrate is made of glass.

US Pat. No. 10,262,435

SURVEYING INSTRUMENT

TOPCON CORPORATION, Toky...

1. A surveying instrument comprising:a horizontal shaft for rotating a telescope of the surveying instrument vertically;
a vertical shaft for rotating the telescope horizontally;
a microcontroller having
a tracking section that includes an image sensor and an image processor, obtains a center of an image of a target by lit and unlit images of the image sensor, and obtains and outputs deviations between a center of a field of view of the telescope and the center of the target,
a tracking arithmetic section that makes the horizontal shaft and/or the vertical shaft rotate respectively to positions corresponding to the deviations from the tracking section until a position at which deviations between the center of the field of view of the telescope and the center of the target, fall within certain values, and
a motor control section that generates a control signal from an output of the tracking arithmetic section,
a virtual target position calculating section that creates a position of a virtual target, and
a virtual tracking section, when the virtual target is present in a virtual field of view set in advance of the telescope, calculates and outputs deviations from a center of the virtual field of view to a center of the virtual target;
motors that rotate the horizontal shaft and the vertical shaft in response to the control signal of the motor control section; and
encoders that detect rotation amounts of the horizontal shaft and the vertical shaft, and feed-back the amounts to the motor control section,
wherein the surveying instrument, for evaluating tracking performance, handles an output of the virtual tracking section the same as an output of the tracking section, and determines rotational movements of the horizontal shaft and the vertical shaft in the tracking arithmetic section.

US Pat. No. 10,261,186

THREE-DIMENSIONAL SURVEYING INSTRUMENT AND THREE-DIMENSIONAL SURVEYING METHOD

TOPCON Corporation, Toky...

1. A three-dimensional surveying instrument comprising; a light emitter for emitting a pulsed distance measuring light, a scanning unit for scanning a range as required including an object to be measured with said distance measuring light from said light emitter, a distance measuring unit for performing a distance measurement based on a reflected light from said object to be measured, at least one image pickup unit for acquiring an image of said object to be measured, a filter unit provided on an image pickup optical axis of said image pickup unit and a control arithmetic unit which enables changing a measurement mode, wherein said filter unit has at least a distance measuring light transmission filter for transmitting said distance measuring light, and said control arithmetic unit calculates a reflectance information of said object to be measured based on a distance measuring light image acquired by said image pickup unit through said distance measuring light transmission filter and selects a measurement mode based on said reflectance information of said object to be measured.

US Pat. No. 9,867,534

OPHTHALMOLOGIC APPARATUS AND OPHTHALMOLOGIC APPARATUS SYSTEM

TOPCON CORPORATION, Itab...

1. An ophthalmologic apparatus configured such that an operation unit is attached thereto, the ophthalmologic apparatus comprising:
a measuring head configured to perform optical measurement of a subject's eye;
a user interface configured for performing an operation in relation to the optical measurement of the subject's eye; and
a controller configured to detect whether an operation on the operation unit is enabled, and perform at least display control
for the user interface in different operation modes between an enabled state in which the operation on the operation unit
is enabled and a disabled state in which the operation on the operation unit is disabled.

US Pat. No. 10,277,006

LIGHT-EMITTING DEVICE AND DISTANCE MEASUREMENT DEVICE

TOPCON CORPORATION, Itab...

1. A light emitting device comprising:a semiconductor laser that emits light having relaxation oscillation immediately after being supplied with electric current;
a light source driving circuit that includes a differentiation circuit having a resistor and a capacitor in parallel connection and that includes a switching element for applying voltage in serial connection to the differentiation circuit, the voltage applied using a first voltage (Vcs) via a first electrode of the differentiation circuit that is proximal to the semiconductor laser and a second voltage (Vd) via a second electrode of the differentiation circuit that is proximal to the switching element, and the light source driving circuit being serially connected to the semiconductor laser;
a power supply that applies voltage to the serial circuit of the semiconductor laser and the light source driving circuit;
a light measuring part that measures the light emitted from the semiconductor laser; and
a voltage controlling part that controls the voltage to be applied to the semiconductor laser in response to a waveform of the light measured by the light measuring part,
wherein the emitted light having the relaxation oscillation has an initial pulse having a highest peak intensity value at an initial stage of the light emission and has subsequent pulses of which peak intensities gradually decrease at a subsequent stage of the light emission, and the initial pulse is generated immediately after application of a driving current is started,
a voltage that exceeds a light emission threshold voltage of the semiconductor laser is applied to the semiconductor laser in response to turning on the switching element, and
a resistance value of the resistor and a capacitance value of the capacitor of the differentiation circuit are set so that a voltage lower than the light emission threshold voltage of the semiconductor laser is applied to the semiconductor laser at a stage in which the semiconductor laser has performed the emission of the light having the highest peak intensity value of the relaxation oscillation.

US Pat. No. 10,337,863

SURVEY SYSTEM

TOPCON CORPORATION, Itab...

1. A survey system comprising:a photographing portion provided in a movable body and taking a plurality of images for photogrammetry;
a surveying portion tracking the photographing portion and continuously determining a position of the photographing portion;
a relative photographing position calculation portion calculating a relative photographing position of each image based on the plurality of images taken by the photographing portion;
a traveling path calculation portion calculating a traveling path of the movable body from a survey result obtained by the surveying portion; and
a photogrammetry analysis portion
associating
a point group of the relative photographing positions calculated by the relative photographing position calculation portion with
the traveling path calculated by the traveling path calculation portion and
generating data for photogrammetry.

US Pat. No. 10,310,059

LASER SCANNER

TOPCON Corporation, Toky...

1. A laser scanner comprising: a light source unit for emitting a pulsed laser as a distance measuring light, a light receiving unit for receiving a reflected distance measuring light, a distance measuring unit for performing a distance measurement based on a signal from said light receiving unit, an angle measuring unit for performing an angle measurement based on a detection result of a directional angle detector which detects an emitting direction of said distance measuring light, a telescope unit which includes said light source unit, said light receiving unit, and said distance measuring unit and is capable of rotating in a horizontal direction and a vertical direction, a rotation driving unit for rotating said telescope unit, said directional angle detector for detecting a directional angle of the pulsed laser, and a control arithmetic unit for rotatably irradiating the pulsed laser in a necessary range and for preparing three-dimensional point cloud data based on a distance measurement result and a detection result of the directional angle for each pulsed laser, wherein said light source unit is designed as an MOPA type laser light source and has an oscillator control circuit, a main oscillator, and an optical amplifier, wherein said oscillator control circuit has a repetition frequency setting component, a pulse peak output setting component, a pulse width setting component and an amplification factor calculating component and oscillates said main oscillator by a repetition frequency, a pulse peak output, and a pulse width corresponding to a distance to be measured, and wherein said amplification factor calculating component calculates an amplification factor based on the repetition frequency, the pulse peak output, and the pulse width and amplifies said optical amplifier based on a calculated amplification factor.

US Pat. No. 10,345,232

METHOD OF MEASURING STATE OF CONCRETE

TOPCON CORPORATION, Toky...

1. A method of measuring a state of concrete, the method comprising:emitting an irradiation light to concrete, the irradiation light including a wavelength range of near infrared light;
receiving a reflection light of the irradiation light reflected on the concrete;
determining at least five wavelengths different from each other by PLS regression analysis within a wavelength range of 900 nm to 2500 nm of absorption spectrum; and
estimating a degree of neutralization of the concrete caused by calcium hydroxide and a concentration of chloride ion,
wherein the degree of neutralization caused by the calcium hydroxide is estimated based on a pH value.

US Pat. No. 10,323,940

TILT ANGLE MEASURING DEVICE

TOPCON Corporation, Toky...

1. A tilt angle measuring device comprising; a discoid container for including a liquid forming a free liquid surface, a light emitting source for allowing a detection light to enter said free liquid surface, a photodetector for receiving the detection light reflected on said free liquid surface and a signal processing unit for detecting a tilt of said free liquid surface based on a detection signal from said photodetector, wherein said signal processing unit sets a detection light storage time of said photodetector so that an error incidence rate of the detection signal is a predetermined value.

US Pat. No. 10,281,580

SURVEYING SYSTEM

TOPCON Corporation, Toky...

1. A surveying system comprising: a surveying instrument, wherein said surveying instrument comprises a measuring unit for performing a distance measurement by projecting a distance measuring light toward an object to be measured and by receiving a reflected distance measuring light from said object to be measured, an image pickup unit having an image pickup optical axis running in parallel to a projection optical axis of said distance measuring light and for picking up an image including said object to be measured, an attitude detecting unit provided integrally with said measuring unit and for detecting a tilt angle with respect to the horizontal of said measuring unit, a coordinates acquiring unit for detecting a position of said surveying instrument and an arithmetic processing unit,wherein a first image of said object to be measured is acquired by said image pickup unit from a first position where coordinates of said first position are acquired by said coordinates acquiring unit, a second image of said object to be measured is acquired by said image pickup unit from a second position where coordinates of said second position are acquired by said coordinates acquiring unit,
wherein said measuring unit directs a distance measuring optical axis toward common measuring points as specified in said first image and said second image respectively, projects said distance measuring light, and carries out a first distance measurement from said first position and a second distance measurement from said second position, and
wherein said arithmetic processing unit calculates horizontal distances from said first position and said second position respectively based on the tilt angles detected by said attitude detecting unit at said first position and said second position, on said first distance measurement and on said second distance measurement, and
further said arithmetic processing unit is configured to calculate a base line length based on the coordinates of said first position and on the coordinates of said second position and to carry out a trilateration with respect to said measuring point based on said horizontal distance and on said base line length.

US Pat. No. 10,565,730

SURVEY DATA PROCESSING DEVICE, SURVEY DATA PROCESSING METHOD, AND SURVEY DATA PROCESSING PROGRAM

TOPCON CORPORATION, Itab...

1. A survey data processing device comprising:a positioning data receiving unit configured to receive positioning data, the positioning data being obtained through tracking and positioning a reflective prism of an aerial vehicle by a total station, the aerial vehicle mounted with the reflective prism and a camera in which positional relationship and attitude relationship therebetween are known;
a relative orientation unit configured to calculate relative exterior orientation parameters of the camera by relative orientation using photographed images taken by the camera;
an absolute orientation unit configured to obtain absolute values for the relative exterior orientation parameters by absolute orientation on a basis of the positioning data and the relative exterior orientation parameters;
an adjustment calculation executing unit configured to correct the absolute values for the relative exterior orientation parameters on a basis of a position relationship between the camera and the reflective prism, which is preliminarily obtained; and
a positioning data correcting unit configured to correct the positioning data of the reflective prism,
wherein displacement of a reflection point of the reflective prism occurs depending on an incident angle of each of measurement light and tracking light from the total station,
a relationship between the incident angle of each of the measurement light and the tracking light from the total station to the reflective prism and the displacement of the reflection point of each of the measurement light and the tracking light on the reflective prism is preliminarily obtained, and
the positioning data correcting unit corrects the positioning data on a basis of attitude in an absolute coordinate system of the reflection prism, which is obtained from the corrected absolute values for the relative exterior orientation parameters, the incident angle of each of the measurement light and the tracking light from the total station to the reflective prism, and the preliminarily obtained relationship between the incident angle to the reflective prism and the displacement of the reflection point.

US Pat. No. 10,386,485

LASER SCANNER

TOPCON Corporation, Toky...

1. A laser scanner comprising;a light projecting unit for pulse-emitting a distance measuring light and for irradiating the distance measuring light,
a light receiving unit for receiving a reflected distance measuring light and for producing a light receiving signal, a distance measuring unit for performing a distance measurement based on a light receiving signal from said light receiving unit,
a rotary deflecting unit for deflecting said distance measuring light in a horizontal direction and for being rotated in a horizontal direction and in a vertical direction at a constant speed and for performing a rotary irradiation of said distance measuring light,
encoders for detecting a rotation angle of said rotary deflecting unit, and an arithmetic control unit for controlling said distance measuring unit and said rotary deflecting unit, for scanning said distance measuring light and for calculating three-dimensional data of a measuring point based on a light receiving signal from said light receiving unit,
wherein said arithmetic control unit has a light receiving intensity judging component and a threshold value setting component, a peak value of a light receiving intensity, which is obtained by scanning said distance measuring light in a measurement range as set in advance, is inputted to said threshold value setting component from said light receiving intensity judging component, said threshold value setting component sets a threshold value for detecting light receiving as associated with said measurement range corresponding to the peak value of said light receiving intensity, and said arithmetic control unit acquires a light receiving signal based on said threshold value and performs a distance measurement.

US Pat. No. 10,634,582

LENS CHARACTERISTIC EVALUATION DEVICE AND METHOD OF OPERATING LENS CHARACTERISTIC EVALUATION DEVICE

TOPCON CORPORATION, Toky...

1. A lens characteristic evaluation device comprising:a scanning optical system including a scanner configured to scan a surface of a test lens with a linear luminous flux;
a Hartmann plate provided on a side opposite to the scanning optical system with respect to the test lens and having a plurality of two-dimensionally arranged pinholes, the Hartmann plate being configured to transmit the linear luminous flux which has passed through the test lens and radiated on the pinholes by the scanning performed by the scanning optical system;
a screen on which the linear luminous flux having passed through the Hartmann plate is projected; and
a photographing optical system including a camera provided on a side opposite to the Hartmann plate with respect to the screen and configured to photograph the screen while the scanning with the linear luminous flux is being performed by the scanning optical system.

US Pat. No. 10,371,801

MEASURING INSTRUMENT

TOPCON Corporation, Toky...

1. A measuring instrument, comprising a measuring unit for projecting a distance measuring light toward an object to be measured and for performing a distance measurement by receiving a reflected light from the object to be measured, and an attitude detecting device integrally provided with said measuring unit, wherein said attitude detecting device has tilt sensors for detecting a horizontality and relative tilt angle detectors for tilting said tilt sensors so that the horizontality is detected by said tilt sensors and for detecting a relative tilt angle between said measuring unit and said tilt sensors under such condition that said tilt sensors detects the horizontality, and wherein the distance measurement of the object to be measured is performed by said measuring unit, and a vertical angle of a measuring point is determined based on the result of the tilt detection by said attitude detecting device.

US Pat. No. 10,267,659

ANGLE DETECTING DEVICE AND SURVEYING INSTRUMENT

TOPCON Corporation, Toky...

1. An angle detecting device comprising; absolute encoders provided on a rotation member which rotates at a constant speed, a clock signal generating component, a counter circuit, an angle calculating component, and a trigger signal generating component, wherein an angle trigger signal is inputted to said absolute encoders and said counter circuit at a predetermined time interval, said absolute encoders input rotation angles for each angle trigger signal to said angle calculating component, said counter circuit outputs the number of clock counts to said angle calculating component from the moment when a rotation angle measuring trigger signal is inputted by inputting said rotation angle measuring trigger signal for detecting the rotation angle of said rotation member to said counter circuit, and wherein said angle calculating component detects the rotation angle of said rotation member based on the rotation angles from said absolute encoders and on the number of said clock counts.

US Pat. No. 10,247,831

NAVIGATION SIGNAL PROCESSING DEVICE, NAVIGATION SIGNAL PROCESSING METHOD, AND NAVIGATION SIGNAL PROCESSING PROGRAM

TOPCON CORPORATION, Itab...

1. A navigation signal processing device comprising:circuitry configured to
perform positioning of an antenna based on navigation signals received by the antenna from navigation satellites;
set an elevation angle mask that causes inhibition of utilization of the navigation signals that are received from a specific angle range as viewed from the antenna in the positioning of the antenna; and
obtain three-dimensional point cloud position data that includes data of multiple points of the surroundings as viewed from the antenna, the multiple points being obtained by a laser scanner or a stereoscopic camera and having determined three-dimensional coordinates,
wherein the circuitry is further configured to set the elevation angle mask that causes inhibition of utilization of the navigation signals that are received from a straight line direction connecting the antenna and each of the multiple points of the three-dimensional point cloud position data as viewed from the antenna.

US Pat. No. 10,697,771

SURVEY SYSTEM

TOPCON CORPORATION, Itab...

1. A survey system comprising:a movable photographing device including
a movable body,
a photographing portion taking a plurality of images for photogrammetry,
a first time stamping portion receiving a global positioning system (GPS) signal containing time information from a GPS satellite and stamping a GPS time based on the GPS signal as a first time relating to a photographing time on the plurality of images taken by the photographing portion, and
a photographing memory portion storing the plurality of images on which the first time is stamped;
a surveying device including
a surveying portion including an electro-optical distance meter, a horizontal angle detection portion, and a vertical angle detection portion, the surveying portion automatically tracking the movable photographing device, and determining a position of the movable photographing device,
a second time stamping portion receiving a GPS signal containing time information from a GPS satellite and stamping a GPS time based on the GPS signal as a second time relating to a surveying time on a survey result obtained by the surveying portion, the survey result including a slant distance, a horizontal angle, and a vertical angle with respect to the movable photographing device, and
a survey memory portion storing the survey result on which the second time is stamped; and
a photographing position analysis portion
associating, based on the first time and the second time, a photographing position of the movable photographing device calculated from the survey result with a photographing position of each of the plurality of images taken by the movable photographing device, and
generating data for photogrammetry.

US Pat. No. 10,667,684

OCT APPARATUS

TOPCON CORPORATION, Itab...

1. An optical coherence tomography (OCT) apparatus that splits light from a light source into measurement light and reference light, projects the measurement light on an object, and detects interference light generated from the reference light and the measurement light returning from the object, the OCT apparatus comprising:a dispersion unit configured to relatively change a dispersion characteristic of a measurement optical path which is an optical path of the measurement light and a dispersion characteristic of a reference optical path which is an optical path of the reference light, according to an operation mode corresponding to a depth range; and
an information generation unit configured to generate information on the object according to the operation mode, based on a detection result of the interference light.

US Pat. No. 10,578,433

INCLINATION SENSOR

TOPCON CORPORATION, Toky...

1. An inclination sensor comprising:a liquid that forms a liquid surface;
an illumination section;
a barcode pattern to be illuminated by the illumination section;
an optical system that projects the barcode pattern on the liquid surface;
a light receiving element that detects the barcode pattern reflected; a storage section that stores a detection image of the light receiving element when the liquid surface is removed from an optical path of the optical system; and
an arithmetic section that calculates an inclination angle by subtracting a detection image when the liquid surface is removed from a detection image of the light receiving element when the liquid surface is present on the optical path of the optical system,
wherein the inclination sensor includes an illumination control section that adjusts a light amount of the illumination section, the storage section stores an illumination control value of the illumination control section for a detection image when the liquid surface is removed, and the arithmetic section makes an illumination control value of the detection image when the liquid surface is removed and an illumination control value of the detection image when the liquid surface is present, equal to each other.

US Pat. No. 10,561,311

OPHTHALMIC IMAGING APPARATUS AND OPHTHALMIC INFORMATION PROCESSING APPARATUS

Topcon Corporation, Itab...

1. An ophthalmic imaging apparatus comprising:a three dimensional data generator that generates three dimensional data by scanning a three dimensional region of a fundus of a subject's eye using optical coherence tomography (OCT);
an analyzer that generates a plurality of analysis maps by analyzing a plurality of pieces of partial three dimensional data in the three dimensional data, the analyzer comprising:
a layer region specifier that specifies a layer region corresponding to a predetermined layer tissue of the fundus by analyzing at least one of the plurality of pieces of partial three dimensional data; and
a layer thickness calculator that calculates thicknesses of the layer region at a plurality of positions,
wherein the analyzer generates an analysis map based on the thicknesses of the layer region at the plurality of positions;
a display controller that displays the plurality of analysis maps over a front image of the subject's eye on a display device, wherein the front image is one of a fundus image acquired by a fundus camera, a fundus scan image acquired by a scanning laser ophthalmoscope, and an OCT front image generated from at least part of three dimensional data of the fundus acquired using OCT; and
a storage in which normal eye data that represents a distribution of allowable range of thickness of the predetermined layer tissue for a normal eye is stored in advance,
wherein the analyzer further comprises a comparator that compares the thicknesses of the layer region at the plurality of positions calculated by the layer thickness calculator with the normal eye data,
wherein the analyzer generates a layer thickness evaluation map as an analysis map based on a comparison result obtained by the comparator,
wherein the three dimensional data generator scans a three dimensional region including both an optic nerve head and a fovea centralis of the fundus to generate the three dimensional data,
wherein the analyzer at least executes an analysis of first partial three dimensional data corresponding to a partial three dimensional region including the optic nerve head to generate a first layer thickness evaluation map, and an analysis of second partial three dimensional data corresponding to a partial three dimensional region including the fovea centralis to generate a second layer thickness evaluation map,
wherein the display controller displays at least the first layer thickness evaluation map and the second layer thickness evaluation map over the front image, and
wherein in a case where the first partial three dimensional data and the second partial three dimensional data partially overlap each other, the display controller displays part of the first layer thickness evaluation map and part of the second layer thickness evaluation map overlapping each other.

US Pat. No. 10,551,188

THREE-DIMENSIONAL SURVEYING DEVICE AND THREE-DIMENSIONAL SURVEYING METHOD

TOPCON CORPORATION, Itab...

1. A three-dimensional surveying device configured to acquire three-dimensional data for a measurement target object, the three-dimensional surveying device comprising:a mobile body;
a measurement target installed at a known point separate from the mobile body;
a collimation distance measuring unit fixed to the mobile body and configured to radiate a first distance measuring light to the measurement target, measure a distance to the measurement target based on a first reflected distance measuring light resulting from the first distance measuring light being reflected by the measurement target and a first internal reference light, and detect a radiation direction of the first distance measuring light;
a scanner unit provided integrally with the collimation distance measuring unit and provided rotatably with respect to the collimation distance measuring unit, the scanner unit configured to radiate a second distance measuring light to the measurement target object, measure a distance to the measurement target object based on a second reflected distance measuring light resulting from the second distance measuring light being reflected by the measurement target object and a second internal reference light, and detect a radiation direction of the second distance measuring light; and
a control computation section provided in at least one of the collimation distance measuring unit or the scanner unit,
wherein the collimation distance measuring unit includes:
a telescope section configured to collimate the measurement target and radiate the first distance measuring light,
a first horizontal drive motor configured to horizontally rotate the telescope section about a vertical axial center,
a first horizontal angle detector configured to detect a first horizontal angle of the telescope section,
a first vertical drive motor configured to vertically rotate the telescope section about a horizontal axial center, and
a first vertical angle detector configured to detect a first vertical angle of the telescope section;
the scanner unit includes:
a scanning mirror configured to perform rotational radiation of the second distance measuring light within a plane intersecting a horizontal axial center,
a second horizontal drive motor configured to horizontally rotate the scanning mirror about a vertical axial center,
a second horizontal angle detector configured to detect a second horizontal angle of the scanning mirror,
a second vertical drive motor configured to vertically rotate the scanning mirror about a horizontal axial center, and
a second vertical angle detector configured to detect a second vertical angle of the scanning mirror,
the control computation section includes:
a first distance measurement section configured to measure a distance from the collimation distance measuring unit to the measurement target, and
a second distance measurement section configured to measure a distance from the scanner unit to the measurement target object; and
the control computation section is configured to:
calculate a coordinate value of a measurement center of the collimation distance measuring unit based on the distance measured by the first distance measurement section, the first horizontal angle detected by the first horizontal angle detector, and the first vertical angle detected by the first vertical angle detector, and
calculate a coordinate value of the measurement target object based on the coordinate value of the measurement center, an external orientation element of the scanner unit with respect to the collimation distance measuring unit, the distance measured by the second distance measurement section, the second horizontal angle detected by the second horizontal angle detector, and the second vertical angle detected by the second vertical angle detector.

US Pat. No. 10,469,754

POSITION GUIDING DEVICE, POSITION GUIDING METHOD, AND POSITION GUIDING PROGRAM

TOPCON CORPORATION, Toky...

1. A position guiding device comprising:a mobile terminal that includes an imaging part configured to obtain an image with a predetermined angle of view and a display configured to display the image obtained by the imaging part;
a pole that is fixed with the mobile terminal;
a position information acquiring part that is configured to acquire current coordinate information representing a current location of a pole tip of the pole and target coordinate information representing a target position;
a direction sensor that acquires information of a direction to which the imaging part turns; and
a controller that is configured to generate a target image based on the current coordinate information and target coordinate information, the target image showing the target position as viewed from the current location, wherein
the mobile terminal is attached to the pole so as to position the pole tip within the angle of view of the imaging part, and
the controller is configured:
to acquire, from the position information acquiring part, the current coordinate information representing a position indicated by the pole tip,
to define a horizontal surface including the position indicated by the pole tip as a measurement surface,
to generate corrected coordinate information by shifting a vertical position of the target coordinate information to a position on the measurement surface,
to generate the target image in which a target position marker is put at a position representing the corrected coordinate information in the image obtained by the imaging part based on the information of the direction, and
to display the target image on the display,
the position information acquiring part includes a target for detecting a position using a surveying instrument,
the target is attached to the pole so as to be positioned within the angle of view of the imaging part, and
the controller is configured to calculate a distance from the mobile terminal to the target based on the angle of view and a size of the target in the image obtained by the imaging part.

US Pat. No. 10,422,861

ELECTRO-OPTICAL DISTANCE MEASURING INSTRUMENT

TOPCON Corporation, Toky...

1. An electro-optical distance measuring instrument comprising; a light projecting optical system for projecting a distance measuring light as emitted from a distance measuring light source on a distance measuring optical axis, and a light receiving optical system for receiving a reflected distance measuring light from an object to be measured and for guiding to a light receiving element, wherein said light projecting optical system and said light receiving optical system are disposed so that a projection optical axis and a light receiving optical axis cross each other, an optical path splitting component for reflecting said distance measuring light to a crossing position of said projection optical axis and said light receiving optical axis and for passing through said reflected distance measuring light is provided, optical path length adjusting components for correcting an optical path length of said reflected distance measuring light are disposed on the optical path of said reflected distance measuring light, and said reflected distance measuring light is configured to pass through either said optical path splitting component or said optical path length adjusting components.

US Pat. No. 10,634,786

DISTANCE MEASURING DEVICE, DISTANCE MEASURING METHOD, AND PROGRAM THEREFOR

TOPCON CORPORATION, Toky...

1. A distance measuring device comprising:a distance measuring light emitting unit that emits measuring light to an object to be measured, the distance measuring light being modulated by multiple modulation frequencies;
a detecting unit that receives and detects light of the distance measuring light that is reflected from the object;
a separating unit that separates the detected reflected light into multiple frequency-modulated components;
a processor or circuit configured to perform as a selecting unit that selects at least two frequency-modulated components that have a received-light intensity exceeding a threshold value from among the separated multiple frequency-modulated components; and
the processor or circuit further configured to perform as a distance calculating unit that calculates a distance to the object based on the at least two selected frequency-modulated components,
wherein the calculating of the distance is performed with respect to each of multiple times of detected light corresponding to each of the at least two selected frequency-modulated components, and the frequency-modulated component resulting in the smallest variation of the distance calculated in the calculating of the distance for each of the multiple times of the detected light is selected as a result of the calculation.

US Pat. No. 10,591,290

SURVEY SYSTEM

TOPCON CORPORATION, Toky...

1. A survey system comprising:a surveying instrument having a tracking section that tracks a target by emitting tracking light and receiving the tracking light reflected on the target; and
a scanner that rotates horizontally and integrally with the surveying instrument and performs scanning around a single axis in a vertical direction,
wherein an optical axis of the scanner is on a horizontal rotary shaft of the surveying instrument, and is offset by a fixed angle ? in the horizontal direction from an optical axis of the tracking light.

US Pat. No. 10,578,485

SPECTROSCOPIC INSTRUMENT

TOPCON Corporation, Toky...

1. A spectroscopic instrument comprising: a projecting optical system for projecting a projecting light emitted from a light source toward an object to be measured, a photodetecting optical system for receiving a reflection light from said object to be measured and for guiding to a photodetection member, and a spectroscope for detecting a condition of said object to be measured based on said reflection light as received by said photodetection member, wherein said projecting optical system comprises a projecting system chromatic aberration decreasing component disposed between the light source and the object to be measured and said photodetecting optical system comprises a photodetecting system chromatic aberration decreasing component disposed between the object to be measured and the photodetection member, wherein the projecting system chromatic aberration decreasing component and the photodetecting system chromatic aberration decreasing component eliminate chromatic aberrations.

US Pat. No. 10,564,265

MEASUREMENT DEVICE AND MEASUREMENT METHOD

Topcon Corporation, Itab...

1. A measurement device comprising:a rangefinding light emitting section configured to emit rangefinding light;
a rangefinding unit configured to receive reflected rangefinding light reflected from a measurement target object and perform rangefinding;
an optical axis deflection section provided on an optical path common to the rangefinding light and the reflected rangefinding light, and configured to deflect optical axes of the rangefinding light and the reflected rangefinding light at the same deflection angle and the same direction as each other;
a motor configured to cause the optical axis deflection section to rotate about an emission optical axis of the rangefinding light;
an emission direction detection unit configured to detect a deflection angle and deflection direction resulting from the optical axis deflection section; and
a computation controller; wherein
a measurement target object surface is scanned in a circular shape with the rangefinding light by rotation of the optical axis deflection section; and
the computation controller measures an inclination of the measurement target object surface with respect to the emission optical axis on the basis of acquired coordinate data on the measurement target object surface.

US Pat. No. 10,488,196

LASER SCANNER SYSTEM AND REGISTRATION METHOD OF POINT CLOUD DATA

TOPCON Corporation, Toky...

1. A laser scanner system comprising: a laser scanner which includes a distance measuring light emitting unit for emitting a distance measuring light, a distance measuring unit for receiving a reflection light from an object to be measured and performing a distance measurement, a scanning unit for rotatably irradiating said distance measuring light, a frame unit on which said scanning unit is provided and capable of rotating horizontally, a leveling unit for leveling said frame unit, a directional angle detecting unit for detecting an irradiating direction of said distance measuring light, a GNSS device, and a control arithmetic unit, wherein said laser scanner is installed at two points, and said frame unit is leveled by said leveling unit, and wherein said control arithmetic unit obtains global coordinates of installation positions of said laser scanner from said GNSS device respectively, scans said distance measuring light over a total circumference at each of the installation positions, acquires point cloud data of the total circumference, relatively rotates two point cloud data around a vertical axis as a center, performs a shape matching of said two point cloud data and combines said two point cloud data.

US Pat. No. 10,416,291

THREE-DIMENSIONAL MEASUREMENT DEVICE

TOPCON CORPORATION, Itab...

1. A three-dimensional measurement device that irradiates a measurement target object with distance measurement light, measures a distance to the measurement target object based on reflected distance measurement light, which is the distance measurement light reflected by the measurement target object, and internal reference light, and acquires three-dimensional data on the measurement target object by detecting a light emitting direction of the distance measurement light, the three-dimensional measurement device comprising:a light source unit that emits the distance measurement light;
a projection light optical system that causes the distance measurement light, emitted by the light source unit, to be emitted along a distance measurement light axis;
a light receiving optical unit that receives the reflected distance measurement light;
a light receiving and splitting unit that splits the reflected distance measurement light that has transmitted through the light receiving optical unit into first reflected split light and second reflected split light, attenuates intensity of the second reflected split light to be lower than intensity of the first reflected split light, and converts the first reflected split light and the second reflected split light into electrical signals;
an angle detection unit that includes a horizontal angle detector and a vertical angle detector, and that detects the light emitting direction of the distance measurement light, the horizontal angle detector detecting a rotational angle of a horizontal rotation shaft, the vertical angle detector detecting a rotational angle of a vertical rotation shaft; and
a control calculation unit that calculates a coordinate value of the measurement target object, based on the distance to the measurement target object measured by a distance measurement unit having the light receiving and splitting unit, a vertical angle detected by the vertical angle detector, and a horizontal angle detected by the horizontal angle detector,
wherein the light receiving and splitting unit includes:
a beam splitter that splits the reflected distance measurement light into the first reflected split light and the second reflected split light;
an optical fiber that transmits the second reflected split light in such a manner that the second reflected split light is delayed relative to the first reflected split light;
an attenuator that is provided on an optical path of the second reflected split light and attenuates the intensity of the second reflected split light to be lower than the intensity of the first reflected split light; and
a photodetector that receives the first reflected split light and the second reflected split light with a time interval, and converts the first reflected split light and the second reflected split light into the electrical signals, the first reflected split light having transmitted through the beam splitter, the second reflected split light being reflected by the beam splitter, the second reflected split light having transmitted through the optical fiber, being delayed relative to the first reflected split light, and having the intensity attenuated to be lower than the intensity of the first reflected split light.

US Pat. No. 10,386,466

DISTANCE MEASURING DEVICE AND DISTANCE MEASURING METHOD

TOPCON CORPORATION, Toky...

1. A distance measuring device comprising:a first band pass filter that has a first center frequency and that receives a detection signal of reference pulsed light, which has propagated through a predetermined optical path, thereby generating a first signal;
a second band pass filter that has a second center frequency different from the first center frequency and that receives a detection signal of distance measuring pulsed light, which has been emitted to an object and has been reflected by the object, thereby generating a second signal;
a mixing circuit that mixes the first signal and the second signal and generates a mixed signal;
an A/D converter that receives the mixed signal;
a processor or circuit configured to perform as a separated-signal calculating unit that processes output from the A/D converter by FFT analysis after the A/D converter receives the mixed signal, thereby generating a first separated signal corresponding to the first signal and a second separated signal corresponding to the second signal;
the processor or circuit further configured to perform as a converting unit that converts a phase of at least one of the first separated signal and the second separated signal into a phase of a predetermined frequency so that the first separated signal and the second separated signal have the same frequency; and
the processor or circuit further configured to perform as a distance calculating unit that calculates a distance to the object by using a phase difference between the first separated signal and the second separated signal that have the same frequency.

US Pat. No. 10,353,072

LASER SCANNER CONTROLLING DEVICE, LASER SCANNER CONTROLLING METHOD, AND LASER SCANNER CONTROLLING PROGRAM

TOPCON CORPORATION, Toky...

1. A device for controlling a laser scanner by using a camera, the laser scanner and the camera respectively having exterior orientation parameters that are known in advance, the device comprising circuitry configured to perform as:a sun position calculator that calculates a position of the sun on the celestial sphere surface as viewed from the camera, from astronomical information that is known in advance;
a brightness calculator to measure brightness, at a position corresponding to the position of the sun on the celestial sphere surface, in an image that is obtained by the camera to contain a direction of the sun; and
a scan controller that sets a condition for restricting the laser scanner from emitting measurement laser light for laser scanning in the direction of the sun when the brightness is not less than a predetermined threshold value.

US Pat. No. 10,712,153

METHOD FOR CONTROLLING ULTRASONIC MOTOR AND SURVEYING INSTRUMENT FOR THE SAME

TOPCON CORPORATION, Toky...

1. A method for controlling an ultrasonic motor in a surveying instrument including a rotary shaft, an ultrasonic motor that drives the rotary shaft, a tracking unit that includes a light emitting unit and a light receiving unit and tracks a target, a clock signal oscillation unit that outputs a clock signal, and a control unit that outputs a drive signal to the ultrasonic motor and controls the timing of light emission of the tracking unit, whereinat the time of low-speed rotation of the ultrasonic motor,
the control unit performs intermittent driving, such that in the intermittent driving, an acceleration period in which the drive signal is applied and a deceleration period in which the drive signal is stopped are respectively provided once in a driving cycle of the drive signal, and
the control unit synchronizes the ultrasonic motor and the tracking unit based on the clock signal, sets a ratio of the acceleration period and the deceleration period in the drive cycle of the drive signal, and makes the light emitting unit of the tracking unit emit light and the light receiving unit receive the light only in the deceleration period after the termination of the drive signal toward the end of the drive cycle and images the target only in the deceleration period before outputting a subsequent drive signal and switching to a subsequent acceleration period in each of all of the drive cycles so as to avoid the occurrence of a blurring image.

US Pat. No. 10,712,430

OPTICAL SYSTEM OF LASER SCANNER AND SURVEYING INSTRUMENT

TOPCON Corporation, Toky...

1. An optical system of a laser scanner comprising: a light projecting system for projecting a distance measuring light, a scanning mirror for rotatably irradiating said distance measuring light from said light projecting system around a single axis and for making a reflected distance measuring light from an object to be measured enter a light receiving system, a transmission window for accommodating said scanning mirror and through which said distance measuring light and said reflected distance measuring light are transmitted, a correction optical component which is provided on an irradiating optical path of said distance measuring light and is provided at a position where an optical action of said transmission window is offset, and a reference mirror which is provided at a position not affecting an acquisition of point cloud data and confronts said scanning mirror,wherein said transmission window is formed by a cylindrical curved surface or a conical curved surface and has an optical action for diffusing a luminous flux in a circumferential direction of the curved surface,
and said correction optical component has an optical action for converging the luminous flux in said diffusing direction or for diffusing the luminous flux in a direction orthogonal to said diffusing direction,
and wherein said scanning mirror rotates over a total circumference around a horizontal axis and deflects said distance measuring light from said light projecting system at a right angle with respect to said horizontal axis,
and said scanning mirror makes said distance measuring light reflected by said reference mirror enter said light receiving system as an internal reference light.

US Pat. No. 10,699,544

COMMUNICATION MANAGEMENT SYSTEM OF SURVEYING INSTRUMENT

TOPCON CORPORATION, Toky...

1. A communication management system of a surveying instrument, comprising:a surveying instrument including a survey unit configured to survey a target, a system timer configured to acquire a current time, a control unit configured to control the survey unit and the system timer, and a communication unit configured to enable communication between the control unit and a communication network;
a management server capable of communicating with the surveying instrument through the communication network; and
a remote terminal capable of communicating with the management server,
wherein the remote terminal is configured to set a usable time of the surveying instrument, set a determination on an operating time of the surveying instrument and the usable time, and set an operation responsive to results of the determination, and make the management server store the usable time, the determination, and the operation,
wherein the surveying instrument is configured to transmit an operation start time when its own power supply is turned ON and an operation end time when the power supply is turned OFF to the management server, and
wherein the management server is configured to acquire the operation start time and the operation end time, and compare the usable time and the operating time of the surveying instrument and execute the determination, and based on the results of the determination, execute the operation.

US Pat. No. 10,690,499

ANALYSIS SYSTEM, ANALYSIS METHOD, AND STORAGE MEDIUM IN WHICH ANALYSIS PROGRAM IS STORED

TOPCON CORPORATION, Itab...

1. An analysis system for analyzing inclination of a structure, the analysis system comprising:a measuring device configured to receive and emit a measurement light beam from and to the structure horizontally all around the measuring device and in a certain range in a vertical direction, the measuring device configured to scan the measurement light beam and generate three-dimensional point cloud data of the structure;
a data acquisition unit configured to acquire the three-dimensional point cloud data of the structure;
a surface detector configured to detect a surface of the structure based on the three-dimensional point cloud data; and
an inclination analyzer configured to analyze inclination of the structure by calculating inclination of the surface detected by the surface detector.

US Pat. No. 10,670,731

POSITION AND AZIMUTH MEASUREMENT DEVICE AND SURVEYING DEVICE

TOPCON CORPORATION, Itab...

1. A position and azimuth measurement device comprising:a GNSS device, including a GNSS antenna, configured to obtain position information of the GNSS antenna on the basis of observation values from satellites;
a horizontal rotating section capable of rotating the GNSS antenna horizontally, wherein the GNSS antenna is provided at a known distance from a vertical axial center of the horizontal rotating section;
a leveling section capable of leveling the horizontal rotating section;
a horizontal angle detector configured to detect a horizontal angle of the horizontal rotating section; and
a control device,
wherein the control device causes the GNSS device to continuously obtain the position information while causing the horizontal rotating section leveled by the leveling section to make one full rotation, and is configured to compute geographical coordinates and an azimuth angle on the basis of the position information obtained throughout the full rotation,
wherein of the satellites from which the GNSS device obtains the observation values, the control device selects only satellites capable of outputting observation values throughout the full rotation, and
wherein the control device is configured to create a shape filter having a ring shape and a predetermined width with respect to a circle having a radius equivalent to a distance between the vertical axial center and the GNSS antenna, and match the shape filter to a position in which the number of pieces of the position information located within the shape filter is highest.

US Pat. No. 10,663,296

SURVEYING INSTRUMENT

TOPCON CORPORATION, Toky...

1. A surveying instrument comprising:a light emitting section for emitting distance measuring light having an intensity distribution in which the intensity is high at a center and it becomes lower as approaching a periphery;
a light receiving section for receiving the distance measuring light via a measurement object; and
a distance-measurement optical system for guiding the distance measuring light to the light receiving section via the measurement object,
wherein the surveying instrument performs a prism-mode measurement and a non-prism-mode measurement,
the distance-measurement optical system includes an aperture diaphragm,
the aperture diaphragm is arranged in a distance-measurement optical-path during the prism mode measurement,
an opening of the aperture diaphragm has
a horizontal width of greater than 0 and not greater than 0.5 times a full width at half maximum of the intensity distribution in a horizontal cross section of a non-prism measurement beam, and
a vertical width of greater than 0 and not greater than 0.5 times a full width at half maximum of the intensity distribution in a vertical cross section of the non-prism measurement beam.

US Pat. No. 10,634,767

ELECTRONIC DISTANCE MEASURING INSTRUMENT

TOPCON Corporation, Toky...

1. An electronic distance measuring instrument comprising; a light projecting optical system for emitting a distance measuring light projected from a distance measuring light source along a distance measuring optical axis and a light receiving optical system for receiving a reflected distance measuring light from an object to be measured and leading to a photodetector, wherein said light projecting optical system has a projection optical axis deflecting unit for deflecting said distance measuring light toward said object to be measured, said light receiving optical system has a condenser lens, a first light receiving optical axis deflecting unit, and a second light receiving optical axis deflecting unit which are positioned between said condenser lens and said photodetector and are arranged on a same plane, said first light receiving optical axis deflecting unit deflects a light receiving optical axis toward said second light receiving optical axis deflecting unit such that an angle between an incident optical axis and a reflection optical axis is between 60° and 80°, and said second light receiving optical axis deflecting unit deflects said light receiving optical axis toward said photodetector arranged on a plane different from said first light receiving optical axis deflecting unit and said second light receiving optical axis deflecting unit such that an angle between an incident optical axis and a reflection optical axis is between 30° and 60°, and a plane including the incident optical axis and the reflection optical axis regarding said second light receiving optical axis deflecting unit is perpendicular to a plane including the incident optical axis and the reflection optical axis regarding said first light receiving optical axis deflecting unit.

US Pat. No. 10,561,060

CROP GROWTH MEASUREMENT DEVICE

TOPCON CORPORATION, Itab...

1. A measurement device comprising:a light source section configured to couple a plurality of laser beams having different wavelengths and to emit measuring light;
an illuminating section configured to illuminate a measurement target with the measuring light at a predetermined illuminating angle;
a light receiving section configured to receive reflected measuring light from the measurement target; and
a controlling section configured to compute a reflectance at each of the different wavelengths, based on a light receiving result;
wherein the light source section includes:
a first light source configured to emit a laser beam having a first wavelength;
a second light source configured to emit a laser beam having a second wavelength different from a wavelength of the first light source; and
a dichroic mirror disposed in a position in which optical axes of laser beams having two wavelengths intersect, the dichroic mirror being configured to transmit one of the laser beams and reflect the other of the laser beams and to combine the laser beams having the two wavelengths,
the light receiving section includes:
a first light receiving unit configured to receive the reflected measuring light from a first distance;
a second light receiving unit configured to receive the reflected measuring light from a second distance, the second distance being greater than the first distance; and
a third light receiving unit configured to receive the reflected measuring light from a third distance, the third distance being greater than the first and second distances, and
the controlling section is configured to select which of light receiving results from the first light receiving unit, the second light receiving unit, and the third light receiving unit to use, based on a distance to the measurement target.

US Pat. No. 10,548,261

GROWTH INFORMATION MANAGEMENT DEVICE, METHOD FOR CONTROLLING GROWTH INFORMATION MANAGEMENT DEVICE, AND GROWTH INFORMATION MANAGEMENT PROGRAM

Topcon Corporation, Itab...

1. A growth information management device comprising:a processor;
a display unit; and
a memory, for storing computer program instructions, which when executed by the processor, cause the processor to perform operations comprising:
associating measured growth information, which is plant growth information on a farm field that has been measured, with a location on the farm field where the plant growth information is measured;
combining map information of the farm field with grid information;
combining the grid information with the measured growth information;
generating averaged information in each of a plurality of grid cells by averaging the measured growth information in each of the plurality of grid cells;
with respect to particular ones of the plurality grid cells not including the measured growth information, estimating growth information for the particular ones of the plurality grid cells on the basis of the measured growth information from one or more other ones of the plurality of grid cells that are closer to the particular ones of the plurality of grid cells not including the measured growth information;
determining a boundary of the farm field using an outer line of the plurality of grid cells including the measured growth information and the particular ones of the plurality of grid cells having the estimated growth information;
identifying particular grid cells in an area within the boundary as an independent farm field;
converting the measured growth information corresponding to the independent farm field into growth level information that is information indicating a level of growth of a plant; and
displaying the growth level information on the display unit.

US Pat. No. 10,534,075

THREE-DIMENSIONAL SURVEYING INSTRUMENT AND THREE-DIMENSIONAL SURVEYING METHOD

TOPCON Corporation, Toky...

1. A three-dimensional surveying instrument, comprising a light emitter for emitting a distance measuring light, a light projecting optical unit for irradiating a distance measuring light from said light emitter along a distance measuring optical axis, a light receiving optical unit for receiving a reflection light from an object to be measured, a photodetection element for converting said reflection light as focused at said light receiving optical unit to an electric signal, a scanning unit for scanning a distance measuring light with respect to said object to be measured provided on a frame unit, angle detecting units for detecting an irradiating direction of the distance measuring light as scanned by said scanning unit, a vibration detecting unit for detecting vibration amount of said frame unit, and a control arithmetic unit having a storage unit where a threshold value is stored, wherein said control arithmetic unit controls so that the number of rotations of said scanning unit is gradually increased from low rotation number to the maximum rotation number, stores in said storage unit by associating the number of rotations with vibration amount as detected, compares vibration amount corresponding to the number of rotations as calculated based on measurement conditions with said threshold value, and performs measurement on said object to be measured in a case where it is judged that vibration amount corresponding to said number of rotations as calculated is lower than said threshold value.

US Pat. No. 10,502,630

TEMPERATURE MEASUREMENT DEVICE AND TEMPERATURE MEASUREMENT METHOD

Topcon Corporation, Itab...

1. A temperature measurement device for measuring a body temperature of an animal in a non-contact manner apart from a body of the animal, the temperature measurement device comprising:a feed provider for providing the animal with feed;
a first temperature measurement portion for measuring a temperature distribution of a predetermined range in a non-contact manner;
a calibrator including a single heater able to generate heat to a preset temperature and including a heat conductor conducting heat from the single heater and having a temperature gradient such that a part of the heat conductor closer to the single heater has a highest temperature, and the temperature decreases away from the single heater;
second temperature measurement portions provided on installation points on the heat conductor, and measuring temperatures at the installation points; and
a controller for calibrating a first temperature measurement result obtained from a temperature distribution of a range covering an object measured by the first temperature measurement portion when the animal eats feed via the feed provider, by comparing
a second temperature measurement result obtained from a temperature distribution of a range covering the calibrator measured by the first temperature measurement portion with
temperatures of respective points of a third temperature measurement result obtained from a temperature distribution of the calibrator measured by the second temperature measurement portions.

US Pat. No. 10,488,519

POLYGON MIRROR, FAN BEAM OUTPUT DEVICE, AND SURVEY SYSTEM

TOPCON CORPORATION, Toky...

1. A fan beam output device comprising:a polygon mirror comprising: a plurality of reflection surfaces formed in a circumference surface of the polygon mirror at equal intervals, and a surface processed part that reflects incident laser light to form a fan beam spreading in a predetermined direction, and the surface processed part being provided in each of the reflection surfaces;
a laser light source that emits laser light toward the reflection surface of the polygon mirror;
a collimator lens that changes the laser light emitted from the laser light source into parallel light flux;
a rotation driver that rotates the polygon mirror;
a rotation position detector that detects a rotation position of the polygon mirror; and
a light sending controller that controls on / off of the laser light source based on the rotation position detected by the rotation position detector,
wherein:
the light sending controller generates the fan beam spreading in a right and left direction from the surface processed part of a predetermined reflection surface of the reflection surfaces of the polygon mirror by controlling the on / off of the laser light source based on the rotation position of the polygon mirror, and
the fan beam scans in an up and down direction by the rotation of the polygon mirror.

US Pat. No. 10,382,747

IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND IMAGE PROCESSING PROGRAM

Topcon Corporation, Itab...

1. An image processing apparatus comprising:a display controlling section configured to
display, in 3D, combination point cloud data which combines a plurality of items of point cloud data obtained from a plurality of viewpoints, and
allow display, in 3D, of one item out of the plurality of items of point cloud data obtained from the plurality of viewpoints,
wherein the combination point cloud data being displayed in 3D and the one item out of the plurality of items of point cloud data obtained from the plurality of viewpoints being displayed in 3D are displayed in a hierarchy.

US Pat. No. 10,371,803

DISTANCE MEASURING DEVICE AND METHOD FOR CALIBRATING THE SAME

TOPCON CORPORATION, Toky...

1. A distance measuring device comprising:a first band pass filter that has a first center frequency and that receives a detection signal of reference pulsed light, which has propagated through a predetermined optical path, thereby generating a first signal;
a second band pass filter that has a second center frequency different from the first center frequency and that receives a detection signal of distance measuring pulsed light, which has been emitted to an object and has been reflected by the object, thereby generating a second signal;
a mixing circuit that mixes the first signal and the second signal and generates a mixed signal;
an A/D converter that receives the mixed signal;
a separated-signal calculating unit that processes output from the A/D converter by FFT analysis after the A/D converter receives the mixed signal, thereby generating a first separated signal corresponding to the first signal and a second separated signal corresponding to the second signal;
a converting unit that converts a phase of at least one of the first separated signal and the second separated signal into a phase of a predetermined frequency so that the first separated signal and the second separated signal have the same frequency; and
a distance calculating unit that calculates a distance to the object by using a phase difference between the first separated signal and the second separated signal that have the same frequency and by also using a correction parameter,
wherein the correction parameter is obtained by
making the detection signal of the reference pulsed light pass through the first band pass filter and the second band pass filter, thereby obtaining a first calibration signal and a second calibration signal therefrom, respectively,
mixing the first calibration signal and the second calibration signal by the mixing circuit, thereby obtaining a calibration mixed signal,
inputting the calibration mixed signal to the A/D converter,
processing output from the A/D converter by FFT analysis by the separated-signal calculating unit, thereby obtaining a first calibration separated signal corresponding to the first calibration signal and a second calibration separated signal corresponding to the second calibration signal,
converting a phase of at least one of the first calibration separated signal and the second calibration separated signal into a phase of the predetermined frequency or another frequency so that the first calibration separated signal and the second calibration separated signal have the same frequency by the converting unit, and
calculating a phase difference between the first calibration separated signal and the second calibration separated signal that have the same frequency.

US Pat. No. 10,372,137

CONTROL SYSTEM FOR CONSTRUCTION MACHINE

TOPCON Corporation, Toky...

1. A control system for a construction machine comprising:a laser surveying instrument for projecting a laser beam in rotary irradiation at a constant speed,
a construction machine operating within a photodetection range of said laser beam and
a direction detecting unit for detecting a direction of said construction machine,wherein said construction machine has:a working mechanical unit for executing a construction,
a machine control device for controlling said working mechanical unit,
a machine communication unit,
two beam detectors and
at least one target provided at known positions with respect to a machine reference position of said construction machine, and
a tilt sensor for detecting a front-rear tilting of said construction machine,wherein said laser surveying instrument has:a laser rotary projecting device for projecting said laser beam in rotary irradiation constituted of a plurality of fan-shaped beams and at least one of the fan-shaped beams being tilted with respect to a horizontal plane,
an electronic distance measuring instrument having a function of tracking said target and for performing a distance measurement of said target, and
a surveying communication unit for performing a communication with said machine communication unit,wherein each of the beam detectors has at least one photodetection sensor in spot-like shape and transmits a photodetection result of said laser beam by said photodetection sensor to said laser surveying instrument or said machine control device,wherein said laser surveying instrument or said machine control device obtains an elevation angle of each of said two beam detectors based on said photodetection result and calculates a left-right tilting of said construction machine based on said elevation angle and a distance measurement result of said target, andwherein said machine control device controls an operation of said construction machine based on a detection result of said direction detecting unit, a front-rear tilting by said tilt sensor, a distance measurement result of said target and the left-right tilting.

US Pat. No. 10,702,145

OPHTHALMOLOGIC APPARATUS

TOPCON CORPORATION, Toky...

1. An ophthalmologic apparatus comprising:a data acquisition device that acquires data by scanning an anterior eye segment of a subject's eye using optical coherence tomography;
a distribution information generator that generates distribution information representing a distribution of a predetermined parameter in the anterior eye segment by analyzing the data;
a front image acquisition device that acquires a front image of the anterior eye segment at a time of the data being acquired;
a storage that stores first distribution information generated from first data acquired at a first time, a first front image at a time of the first data is being acquired, second distribution information generated from second data acquired at a second time, and a second front image at a time of the second data is being acquired;
a positional difference calculator that calculates a positional difference between the first front image and the second front image; and
a registration processor that applies registration to the first distribution information and the second distribution information based on the positional difference.

US Pat. No. 10,697,758

LASER REMOTE LENGTH MEASUREMENT INSTRUMENT

TOPCON CORPORATION, Itab...

1. A laser remote length measurement instrument comprising:a rangefinding unit configured to cause a light emitting element to emit visible rangefinding light and obtain a light reception signal;
an optical axis deflection section configured to scan to-and-fro between two directions with the rangefinding light, the optical axis deflection section including a pair of optical prisms that have a circular plate shape, are independently rotatable, and overlap with each other, each of the pair of optical prisms including
a rangefinding light axis deflection section formed at a central portion of each of the pair of optical prisms and configured to deflect the rangefinding light at a required deflection angle and in a required direction, and
a reflected rangefinding light axis deflection section formed at an outer circumferential portion of each of the pair of optical prisms and configured to deflect the reflected rangefinding light at a deflection angle and in a direction identical to those of the rangefinding light axis deflection section;
a rotation angle detector configured to detect a divergence angle between the two directions; and
a computation controller, the computation controller being configured to compute a distance between illuminated points in the two directions illuminated with the rangefinding light on the basis of rangefinding results for the illuminated points and the divergence angle between the two directions, wherein the computation controller independently rotates each of the pair of optical prisms.

US Pat. No. 10,687,462

FERTILIZATION AMOUNT INFORMATION MANAGEMENT DEVICE, METHOD FOR CONTROLLING FERTILIZATION AMOUNT INFORMATION MANAGEMENT DEVICE, AND FERTILIZATION AMOUNT INFORMATION MANAGEMENT PROGRAM

Topcon Corporation, Itab...

1. A fertilization amount information management device comprising a processor, a display unit, and a memory, for storing computer program instructions, which when executed by the processor, cause the processor to perform operations comprising:associating measured growth information, which is plant growth information on a farm field that has been measured, with a location on the farm field where the plant growth information is measured;
combining map information of the farm field with grid information;
combining the grid information with the measured growth information;
generating averaged information in each of a plurality of grid cells by averaging the measured growth information in each of the plurality of grid cells;
with respect to particular ones of the plurality of grid cells not including the measured growth information, estimating growth information for the particular ones of the plurality of grid cells on the basis of the measured growth information from one or more other ones of the plurality of grid cells that are closer to the particular ones of the plurality of grid cells not including the measured growth information;
generating fertilization amount plan information on each of farm field portions that are portions of the farm field based on the measured growth information;
displaying the generated fertilization amount plan information on the display unit; and
enabling input of corrected fertilization amount plan information indicating correction needed for each of the farm field portions based on the fertilization amount plan information for each farm field displayed on the display unit.

US Pat. No. 10,674,076

MEASURING APPARATUS AND SYSTEM FOR CONSTRUCTING THREE-DIMENSIONAL MODEL

TOPCON CORPORATION, Toky...

1. A measuring apparatus for constructing a three-dimensional model comprising:an inertia measuring unit including an accelerometer and a gyroscope that obtains an acceleration and angular speed of the measuring apparatus in three-dimensions;
an omnidirectional camera including an upper camera and at least one side camera that photographs scenery of an upward direction and a sideward direction, the omnidirectional camera including an image sensor and having a vertical axis; and
a scanner for scanning scenery over 360 degrees in a circumferential direction and having a rotational axis around which the scanner rotates;
wherein the inertia measuring unit, the omnidirectional camera, and the scanner are disposed in this order from the bottom of the measuring apparatus,
the rotational axis of the scanner is disposed in an inclined angle toward a backward direction relative to the vertical axis of the omnidirectional camera, and
the scanner is fixed on a rear end portion of a head portion of the omnidirectional camera above all of the cameras of the omnidirectional camera and performs rotary scanning around the rotational axis,
wherein the scanner is positioned in a gap between a viewing angle of the upper camera and a viewing angle of the at least one side camera.

US Pat. No. 10,650,583

IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, AND IMAGE PROCESSING PROGRAM

TOPCON CORPORATION, Itab...

1. An image processing device for generating an orthographic image on the basis of multiple aerial photographed images that are obtained by photographing an object from multiple different positions by a camera arranged on an aerial vehicle, the image processing device comprising a processor or circuitry configured to:receive image data of the multiple aerial photographed images;
generate point cloud data of the object on the basis of the received image data;
generate a triangulated irregular network (TIN) on the basis of the point cloud data;
generate a digital elevation model (DEM) on the basis of the TIN;
receive designation of a specific position of the object;
extract multiple aerial photographed images that are likely to contain the designated specific position, from among the multiple aerial photographed images;
select an image satisfying optimum condition, from among the extracted multiple aerial photographed images;
blend color information of pixels of the selected image and add the color information to the DEM; and
generate an orthographic image on the basis of the DEM in which the color information is added,
wherein, in a condition in which n=1.5 to 4, the designated specific position is represented as Pi, an elevation angle in a direction perpendicular to the position Pi is represented as ?1, an elevation angle in a vertical direction is 90 degrees,
a directional line 1 that extends in an elevation angle represented as (?1+90°)/n as viewed from the position Pi is calculated, a directional line 2 that connects the position Pi and the position of the camera at the time of photographing is calculated, an angle formed between the directional line 1 and the directional line 2 is calculated, and an image in which the angle formed between the directional line 1 and the directional line 2 is a threshold or less is selected.

US Pat. No. 10,634,496

SURVEYING SYSTEM

TOPCON Corporation, Toky...

1. A surveying system comprising a total station unit, a laser scanner unit and an arithmetic control unit, wherein said total station unit comprises a frame unit capable of horizontally rotating, a telescope unit provided capable of vertically rotating on said frame unit, an image pickup unit adapted to acquire an entire image of an object to be measured, a horizontal angle detector for detecting a horizontal angle of said frame unit, a vertical angle detector for detecting a vertical angle of said telescope unit, a total station distance measuring unit accommodated in said telescope unit and a total station arithmetic control unit, wherein said laser scanner unit is provided on an upper surface of said frame unit and is configured so as to acquire point cloud data by rotatably irradiating a laser beam in a vertical direction, and wherein said arithmetic control unit is configured to acquire said point cloud data of said entire object to be measured by a cooperation of a horizontal rotation of said frame unit and a rotary irradiation of the laser beam by said laser scanner unit, to superimpose said point cloud data on said entire image which said image pickup unit acquired, to set specific points from said entire image, to measure said specific points of said object to be measured by said total station unit, to compare a distance measurement result of said total station unit of said specific points with a distance measurement result of said specific points corresponding to said point cloud data, to obtain a deviation, to correct said point cloud data based on said deviation, and to superimpose said point cloud data as corrected on said entire image again.

US Pat. No. 10,634,497

SHAFT SUPPORT STRUCTURE, LASER BEAM PROJECTING UNIT AND SURVEYING INSTRUMENT

TOPCON Corporation, Toky...

1. A shaft support structure, wherein a rotation shaft is provided on a fixed portion via one bearing, a rotor of an axial gap-type motor is provided on one end portion of said rotation shaft, a stator of said axial gap-type motor is provided on said fixed portion so as to confront said rotor, and an attracting force between said rotor and said stator acts on said bearing as a pressurization.

US Pat. No. 10,634,795

ROVER AND ROVER MEASURING SYSTEM

TOPCON Corporation, Toky...

1. A rover comprising: a pole of which lower end indicates a point to be measured, a measurement auxiliary apparatus provided at a predetermined position of said pole, a direction detecting device integrally provided with said measurement auxiliary apparatus and for detecting a direction of said measurement auxiliary apparatus, and an object to be measured provided at a known distance from the lower end of said pole,wherein said measurement auxiliary apparatus comprises a horizontal detecting unit which is supported so as to be rotatable around two shafts orthogonal to each other and detects the tilts in two axial directions, motors provided so as to rotate said shafts, encoders provided respectively on said shafts, and an arithmetic processing component for controlling said motors in such a manner that said horizontal detecting unit becomes horizontal based on a detection result from said horizontal detecting unit, wherein said encoders are configured to detect a rotation amount of each shaft in a case where said horizontal detecting unit becomes horizontal, and said arithmetic processing component is configured to calculate the tilts in said two axial directions based on the detection results from said encoders and to calculate a deviation of said object to be measured in two horizontal directions with respect to said point to be measured and a deviation in a vertical direction with respect to said known distance based on a calculation result, said known distance, and a tilting direction obtained from a direction detecting device.

US Pat. No. 10,636,171

DEVICE, METHOD, AND SYSTEM FOR TRACKING UNMANNED AERIAL VEHICLE, AND PROGRAM THEREFOR

TOPCON CORPORATION, Toky...

1. An unmanned aerial vehicle tracking method for tracking an unmanned aerial vehicle by a total station, the unmanned aerial vehicle using a global navigation satellite system for location measurement, the method comprising:obtaining information of a location of the total station as a reference location;
starting flight of the unmanned aerial vehicle to make the unmanned aerial vehicle climb to an altitude that is specified in a flight plan;
making the unmanned aerial vehicle hover at the specified altitude;
measuring a location of the unmanned aerial vehicle that is hovering;
obtaining information of the measured location of the unmanned aerial vehicle that is hovering, by the total station;
calculating a direction of the unmanned aerial vehicle as seen from the reference location on a basis of the reference location and the obtained information of the measured location of the unmanned aerial vehicle that is hovering; and
capturing the unmanned aerial vehicle by the total station on a basis of the calculated direction of the unmanned aerial vehicle as seen from the reference location.

US Pat. No. 10,605,600

SURVEYING SYSTEM

TOPCON Corporation, Toky...

1. A surveying system which has a surveying instrument and a target installed at a measuring point, wherein said surveying instrument comprises a distance measuring module for emitting a distance measuring light, receiving a reflected distance measuring light and performing a distance measurement, a tracking module which has a light emitter for emitting a tracking light onto an optical axis of said distance measuring light and a tracking light photodetector for receiving a reflected tracking light and performing a tracking based on a photodetecting position of said tracking light photodetector, an optical axis deflector which is provided on a common optical axis of said distance measuring light and said reflected distance measuring light and deflects the optical axis of said distance measuring light and an optical axis of said reflected distance measuring light at the same deflection angle in the same direction, a projecting direction detecting module for detecting a deflection angle and a deflecting direction by said optical axis deflector and an arithmetic control module for controlling said distance measuring module and said tracking module, wherein said target comprises a pole of which a peripheral surface has a high reflectance and a prism which is provided on an axis of said pole and has a known distance from a lower end of said pole, and wherein said arithmetic control module is configured to scan said distance measuring light with an optical center of said prism as a center by a circular scanning in a state where said prism is tracked, to acquire point cloud data of two points at which said pole intersects with the circular scanning, to calculate said axis of said pole and a tilt angle of said axis of said pole based on said point cloud data of said two points, to calculate a straight line on said pole which is parallel to said axis of said pole and intersects with the circular scanning at two points, to calculate three-dimensional coordinates of two intersection points of said straight line and the circular scanning, to calculate three-dimensional coordinates of said optical center of said prism based on the obtained three-dimensional coordinates and an intersection point of said straight line and a direction vector of said prism from said surveying instrument, and to calculate three-dimensional coordinates of said measuring point based on the three-dimensional coordinates of said optical center of said prism, the tilt angle of said axis of said pole and a distance between the three-dimensional coordinates of said optical center of said prism and the lower end of said pole.

US Pat. No. 10,578,430

EVALUATION METHOD OF ROAD SURFACE PROPERTY, AND EVALUATION DEVICE OF ROAD SURFACE PROPERTY

TOPCON CORPORATION, Itab...

1. An evaluation method of a road surface property comprising the steps of:scanning a road surface to obtain measurement data based on reflected scan light;
acquiring the measurement data on a spaced amount from a measurement reference plane of each point of the road surface measured for a predetermined road width along a path of a road to be measured;
setting a unit area having a preset length dimension along the path in the predetermined road width along the path;
setting a model plane in the unit area based on the measurement data at each point in the unit area;
generating point group data on a spaced amount of each point from the model plane in the unit area including:
dividing the unit area into a plurality of sections and calculating a first Root Mean Square (RMS) statistic of the point group data in each section thereby obtaining a representative value representing each unit area as an evaluation value;
extracting a section having in which a second RMS statistic satisfies a predefined reference value; and
assuming a section selected based on a changing amount of the second RMS statistic of the extracted section and a third RMS statistic associated with a section adjacent to the extracted section as a deformed area candidate; and
evaluating the road surface property using the point group data generated and identifying at least one recess candidate associated with the road.

US Pat. No. 10,568,504

OPHTHALMOLOGIC APPARATUS

TOPCON CORPORATION, Toky...

1. An ophthalmologic apparatus comprising:an objective lens;
a data acquisition system configured to acquire data of a subject's eye optically via the objective lens; and
an anterior segment photographing system that includes a pair of optical systems for substantially simultaneously photographing an anterior segment of the subject's eye from different directions via the objective lens, each of the pair of optical systems including
a light flux limiting element that limits light flux incident through the objective lens,
a lens that guides the light flux passing through the light flux limiting element to a photographing apparatus, and
a relay optical system configured to form a point optically conjugate with the corresponding light flux limiting element between the objective lens and the corresponding light flux limiting element.

US Pat. No. 10,417,753

LOCATION IDENTIFYING DEVICE, LOCATION IDENTIFYING METHOD, AND PROGRAM THEREFOR

TOPCON CORPORATION, Itab...

1. A location identifying device comprising:an image data receiving part that receives data of a photographed image of a field taken from the air;
a location data receiving part that receives data of location of movement tracks left on a ground surface of the field by a tractor, the data of the location measured on the basis of navigation signals from a navigation satellite by a location measuring device while the tractor mounted with the location measuring device moves along a predetermined path set for the field;
a path detecting part that detects a shape of the predetermined path from the data of the photographed image by detecting the movement tracks left on the ground surface of the field by the tractor;
a correspondence relationship determining part that determines a correspondence relationship between the shape of the predetermined path detected by the path detecting part and the data of the location; and
a field location identifying part that identifies a location of the field contained in the photographed image by determining the shape of the predetermined path corresponding to the data of the location of the movement tracks, based on the determined correspondence relationship.

US Pat. No. 10,408,678

SENSOR DEVICE FOR PLANTS HAVING A SPECTROSCOPY VEGETATION INDEX AND HEIGHT OF THE TARGET PLANT DETERMINATION

TOPCON CORPORATION, Toky...

1. A plant sensor device comprising:a light emission part for emitting a measurement light to irradiate a target plant;
a light receiving part for receiving the measurement light reflected on the target plant as a reflected light; and
a control section for controlling the light emission part and the light receiving part, wherein
the control section is configured to determine a spectroscopy vegetation index of the target plant by determining a reflection rate of the target plant in accordance with the measurement light and the reflected light, and
the control section is configured to calculate a distance from the light emission part to the target plant based on the measurement light and the reflected light, and to determine a plant height of the target plant in accordance with the distance.

US Pat. No. 10,352,851

OPTICAL ANALYZER

TOPCON CORPORATION, Toky...

1. An optical analyzer comprising:an irradiating optical system having a light source, an elliptical mirror that concentrates light from the light source and that forms a secondary light source point, and a lens member that condenses the light from the secondary light source point to a measurement point of a measurement object as irradiating light;
a spectrometer that receives at least some of the light that has been reflected from the measurement object and that analyzes the material of the measurement object on the basis of the received light; and
a reflector that is arranged so as to be coaxial with the irradiating optical system and to be in light flux of the irradiating light, the reflector configured to reflect at least some of the light that has been reflected back from the measurement object to the lens member by returning on an optical axis of the irradiating optical system while passing through a path that is passed through by the irradiating light, and the reflector configured to reflect the at least some of the light in a direction different from the direction of the optical axis of the irradiating optical system between the lens member and the light source or between the lens member and the measurement object, thereby conducting the at least some of the light to the spectrometer,
wherein the at least some of the light to be reflected by the reflector after being reflected back from the measurement object has a light flux diameter at a position of the reflector, and the light flux diameter is smaller than a light flux diameter, at the position of the reflector, of the irradiating light that is emitted from the lens member to the measurement object.

US Pat. No. 10,708,572

PHOTOGRAMMETRIC SYSTEM AND PHOTOGRAMMETRIC METHOD

TOPCON CORPORATION, Itab...

1. A photogrammetric system comprising:a camera installed in a movable body, the camera including a shutter unit that unidirectionally moves an exposed portion on an imaging surface across a shutter frame from a long side to another long side, the camera being configured to capture an image by causing the shutter unit to expose the imaging surface from the long side to the other long side;
a first time provider having a function of providing first time relating to capture timings to the image captured by the camera;
a capture position measuring unit configured to measure a capture position at which the camera captures the image;
a second time provider having a function of providing second time relating to measurement timings to a measurement result in response to measurement by the capture position measuring unit; and
a photogrammetry data generator configured to associate the image captured by the camera and the capture position measured by the capture position measuring unit based on the first time and the second time, extract a feature point from the image, calculate an offset time that is a time period from when the camera starts capturing the image to when a portion of the feature point is exposed, from a relation between a position of the feature point in the image and the moving time where the exposed portion is moved by the shutter unit, and calculate a capture position corresponding to a feature point capture time as the feature point capture position, the feature point capture time being obtained by adding the offset time to the first time corresponding to image capture start time, and generate data for use in photogrammetry, the data including the feature point capture position.

US Pat. No. 10,634,791

LASER SCANNER SYSTEM AND REGISTRATION METHOD OF POINT CLOUD DATA

TOPCON Corporation, Toky...

1. A laser scanner system comprising:a laser scanner which includes a distance measuring unit for emitting a distance measuring light, receiving a reflected light from an object to be measured, and performing a distance measurement, a scanning unit for rotatably irradiating said distance measuring light, a directional angle detecting unit for detecting an irradiating direction of said distance measuring light, a GNSS device and a control arithmetic unit, a data processing device and a target which sets a back sight point, wherein said control arithmetic unit has a target scanning mode in which a target scanning range is set so as to include said target and said target scanning range is intensively scanned, and a point cloud data measurement mode in which said distance measuring light is scanned to a measurement range and point cloud data is acquired, and wherein said control arithmetic unit is configured to obtain global coordinate values of an installation position of said laser scanner from said GNSS device at a plurality of installation points of said laser scanner respectively, to acquire point cloud data by executing said point cloud data measurement mode at said plurality of installation points respectively, to determine a target central position by executing said target scanning mode at said plurality of installation points respectively,
to obtain a global coordinate value of a center of said target based on a measurement result obtained by said target scanning mode and said global coordinate values of said plurality of installation points,
and to combine said plurality of point cloud data with each other by a shape matching based on said global coordinate value of said center of said target as an initial value.

US Pat. No. 10,606,684

COMMUNICATION PROCESSING SYSTEM, TROUBLESHOOTING METHOD, AND MANAGEMENT SERVER FOR SURVEYING INSTRUMENT

TOPCON CORPORATION, Toky...

1. A communication processing system for a surveying instrument, comprising:a surveying instrument including a survey unit that performs a survey by receiving reflected light from a measuring target,
a communication unit that enables communication with a network,
a control unit that controls the survey unit and the communication unit,
a storage unit that records information acquired by the control unit,
a display unit that functions as an interface, and
an error detection unit that inspects an instrument internal status and instrument logs;
a management server including a server communication unit capable of communicating with the communication unit,
a server control unit that processes information received by the server communication unit from the surveying instrument, and
a server storage unit that records information processed by the server control unit; and
an external terminal capable of acquiring information on the surveying instrument from the management server,
wherein the server storage unit includes a question data table that functions when the error detection unit does not detect a prescribed error and guides narrowing-down of a user's inquiry contents, the server control unit includes a question management unit that reads out the question data table and transmits it to the surveying instrument when the error detection unit does not detect a prescribed error, and the control unit of the surveying instrument includes a question display unit that makes the display unit hierarchically display a question list according to the question data table received from the question management unit, and
wherein the server storage unit further includes an error search data table to narrow down inquiry contents set by the question list according to version information of the surveying instrument and classification information of the set inquiry contents and identify contents of an undetected error that the error detection unit did not detect, and the server control unit further includes an error search unit that requests information necessary for acquiring the version information and the classification information from the surveying instrument, and reads out the error search data table to identify contents of the undetected error.

US Pat. No. 10,557,791

OPTICAL ANALYZER

TOPCON CORPORATION, Toky...

1. An optical analyzer comprising:an irradiating optical system having a light source, an elliptical mirror that concentrates light from the light source and that forms a secondary light source point, and a lens member that condenses the light from the secondary light source point to a measurement point of a measurement object as irradiating light;
a spectrometer that receives at least some of the light that has been reflected from the measurement object and that analyzes the material of the measurement object on the basis of the received light; and
a reflector that is arranged so as to be coaxial with the irradiating optical system and to be in light flux of the irradiating light, the reflector configured to reflect at least some of the light that has been reflected back from the measurement object to the lens member by returning on an optical axis of the irradiating optical system while passing through a path that is passed through by the irradiating light, and the reflector configured to reflect the at least some of the light in a direction different from the direction of the optical axis of the irradiating optical system between the lens member and the light source or between the lens member and the measurement object, thereby conducting the at least some of the light to the spectrometer,
wherein the at least some of the light to be reflected by the reflector after being reflected back from the measurement object has a light flux diameter at a position of the reflector, and the light flux diameter is smaller than a light flux diameter, at the position of the reflector, of the irradiating light that is emitted from the lens member to the measurement object.

US Pat. No. 10,520,307

SURVEYING INSTRUMENT

TOPCON Corporation, Toky...

1. A surveying instrument comprising: a measuring unit for performing a distance measurement by projecting a distance measuring light toward an object to be measured and by receiving a reflected distance measuring light from said object to be measured, an image pickup unit having an image pickup optical axis running in parallel to a projection optical axis of said distance measuring light and for picking up an image including said object to be measured, an attitude detecting unit provided integrally with said image pickup unit, and an arithmetic processing unit, wherein said attitude detecting unit has tilt sensors for detecting a horizontal and a relative tilt angle detecting unit for tilting said tilt sensors so that said tilt sensors detect the horizontal and for detecting a tilt angle of said measuring unit with respect to the horizontal in a condition where said tilt sensors detect the horizontal, and wherein said arithmetic processing unit calculates a tilting of said image with respect to a vertical based on a detection result of said attitude detecting unit and displays vertical lines in said image acquired by said image pickup unit based on this calculation result.

US Pat. No. 10,522,735

SURVEYING INSTRUMENT

TOPCON Corporation, Toky...

1. A surveying instrument, wherein an output shaft of an ultrasonic motor is attachably and detachably connected by a bolt to a lower end of a horizontal shaft of a frame unit supported rotatably in a horizontal direction, a rotating plate is fixed to said output shaft, a vibration generating component is formed on an outer circumferential portion of said rotating plate, a stator in close contact with said vibration generating component via a predetermined friction torque T1 is rotatably provided on said output shaft, said stator is restricted on a rotation by a whirl-stop unit which absorbs an eccentricity, ultrasonic vibration is generated in said vibration generating component and said output shaft is rotated, andwherein said whirl-stop unit has a joint holder provided on a fixed side and a connection element provided on said stator, said joint holder has a ball holder for pressing a metal ball by a compression spring in a circumferential direction to said connection element and a connection pin holding said connection element by said ball holder and provided spanning over said joint holder and capable of tilting and wherein said whirl-stop unit restricts a displacement of said connection element in a rotating direction and absorbs a displacement in a radial direction between said joint holder and said connection element by tilting of said connection pin.

US Pat. No. 10,514,254

ROAD SURFACE PROPERTY ACQUIRING METHOD AND ROAD SURFACE PROPERTY ACQUIRING DEVICE

TOPCON CORPORATION, Itab...

1. A road surface property acquiring method of guiding a vehicle mounted with a road surface property acquiring device to a specified point on a road and carrying out measurement; the method comprising the steps of:acquiring past road surface data on a past road surface property;
acquiring a present position of the vehicle;
setting a model plane based on at least a first reference region and a second reference region that are spaced apart in a road width direction;
displaying a past road surface property image representing a feature amount of the road surface property in a range including the present position created based on the past road surface data, the past road surface property image comprising a spaced amount image in which measurement data obtained from the past road surface data are shading coded or hue coded in correspondence with a spaced amount of point group data representing a separation amount from the model plane; and
guiding the vehicle from the present position to a specified area while measuring a state of the road surface with the road surface property acquiring device.

US Pat. No. 10,478,060

OPHTHALMIC IMAGE PROCESSING APPARATUS AND OPHTHALMIC IMAGING APPARATUS

TOPCON CORPORATION, Itab...

1. An ophthalmic image processing apparatus comprising:a storage unit configured to store image data acquired through scanning a subject's eye using optical coherence tomography;
a first brightness profile generation unit configured to generate a first brightness profile along a first direction by integrating brightness values of the image data;
a second brightness profile generation unit configured to process the first brightness profile to generate a second brightness profile; and
a brightness correction unit configured to perform brightness correction of the image data based on the first brightness profile and the second brightness profile,
wherein the image data is front image data generated based on three-dimensional image data formed by arranging a plurality of B mode images in the first direction, each of the plurality of B mode images lying along a second direction orthogonal to the first direction, and
wherein the front image data corresponds to slice areas of the plurality of B mode images.

US Pat. No. 10,456,032

OPHTHALMIC IMAGING APPARATUS AND OPHTHALMIC IMAGE PROCESSING APPARATUS

TOPCON CORPORATION, Itab...

1. An ophthalmic imaging apparatus comprising:an optical coherence tomography (OCT) data acquisition unit configured to acquire a three dimensional data set of a fundus of a subject's eye; and
a processor comprising:
a blood vessel enhanced image forming unit configured to form a blood vessel enhanced image based on the three dimensional data set;
a blood vessel gradient distribution determination unit configured to determine a blood vessel gradient distribution that shows gradients of blood vessels at a plurality of locations in the fundus, based on the blood vessel enhanced image; and
a location determination unit configured to determine one or more locations in the fundus where gradients satisfy a predetermined condition, based on the blood vessel gradient distribution,
wherein
the predetermined condition includes chronological gradient variation information for making a diagnosis, and
the location determination unit determines the one or more locations based on two or more blood vessel gradient distributions of the fundus obtained on different dates and the chronological gradient variation information.

US Pat. No. 10,354,447

IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, AND IMAGE PROCESSING PROGRAM

TOPCON CORPORATION, Itab...

2. An image processing method comprising:displaying points of point cloud data on a screen, the point cloud data having known three-dimensional coordinates in an XYZ coordinate system, and the displayed points forming a 3-D image;
displaying a marker on the screen to specify a cut section of the 3-D image in response to designation of a position of the cut section by an operator;
extracting points of the point cloud data within a threshold range to the cut section in the XYZ coordinate system in response to specification of the cut section in the XYZ coordinate system by the displayed marker;
displaying the extracted points on the screen;
deriving a plane equation relating to a plane constituting an object from which the point cloud data is obtained and calculating a normal line of the plane on a basis of the plane equation; and
displaying a cut-area indication marker on the screen, the cut-area indication marker showing a flat part to be cut out from the point cloud data of the 3-D image,
wherein a direction of a normal line of the flat part coincides with a direction of the calculated normal line of the plane.

US Pat. No. 10,795,365

MOVABLE BODY PHOTOGRAMMETRY SURVEY SYSTEM

TOPCON CORPORATION, Toky...

1. A survey system, comprising:a photographing unit provided in a movable body and taking a plurality of images for photogrammetry, each image partially overlapping with another image adjacent thereto;
a surveying unit provided in a known position, having a known point coordinates, tracking the photographing unit, and determining a position of the photographing unit;
a photographing control unit controlling the movable body and the photographing unit to take at least one image containing the surveying unit in taking the plurality of images for photogrammetry;
a relative photographing position calculation unit obtaining image data stored in a photographing memory unit of the photographing unit and calculating a point group of relative photographing positions indicating relative positions of the images;
a travelling path calculation unit obtaining survey data stored in a survey memory unit of the surveying unit and calculating a traveling path of the movable body; and
a photogrammetry analysis unit associating the point group of relative photographing positions with the traveling path to associate a survey result obtained by the surveying unit with a photographing position of each image taken by the photographing unit, recognizing the surveying unit from the at least one image containing the surveying unit, correcting absolute coordinates of the photographing position based on the known point coordinates of the surveying unit, and generating data for photogrammetry.

US Pat. No. 10,765,316

OPHTHALMIC INFORMATION PROCESSING SYSTEM, OPHTHALMIC INFORMATION PROCESSING METHOD, AND RECORDING MEDIUM

TOPCON CORPORATION, Itab...

1. An ophthalmic information processing system comprising:a receiver that receives morphological data of an eye fundus of a subject and background data of the subject; and
a processor that executes optic nerve head shape classification, using an artificial intelligence-based classifier, based on the morphological data and the background data.

US Pat. No. 10,765,317

OPHTHALMOLOGICAL IMAGING DEVICE

TOPCON CORPORATION, Itab...

1. An ophthalmological imaging device comprising:an objective lens;
an interference optical system that divides light from a light source into measurement light and reference light, causes the measurement light to become incident on a subject's eye via the objective lens, and detects interference light between the reference light and return light of the measurement light that has exited from the subject's eye and passed through the objective lens;
an image forming unit that forms an image of the subject's eye based on a detection result of the interference light which are acquired by the interference optical system;
an optical member having a surface that includes an absorbing member for absorbing light, the optical member capable of being disposed in an optical path of the measurement light between the objective lens and the subject's eye, for absorbing the measurement light;
an analyzer that analyzes a first detection result of the interference light which are acquired by the interference optical system while the optical member is in a state of being disposed in the optical path, and a second detection result of the interference light which are acquired by the interference optical system while the optical member is in a state of having been removed from the optical path, to eliminate noise in the second detection result or in an image based on the second detection result, wherein the noise in the second detection result or in the image based on the second detection result includes noise components due to a setting state of the optical member on the optical path of the measurement light, the noise components including noise due to reflection from a lens surface of the objective lens; and
a driver that is capable of disposing and removing the optical member in the optical path of the measurement light between the objective lens and the subject's eye.

US Pat. No. 10,791,922

OPHTHALMOLOGICAL DEVICE AND OPHTHALMOLOGICAL INSPECTION SYSTEM

TOPCON CORPORATION, Itab...

1. An ophthalmological device comprising:an objective lens;
a subjective inspection optical system that includes an optical element capable of correcting aberration of a subject's eye and projects a visual target onto the subject's eye via the objective lens and the optical element; and
an interference optical system that splits light from a light source into reference light and measurement light, projects the measurement light onto the subject's eye via the objective lens and the optical element, generates interference light between returning light of the measurement light and the reference light, and detects the generated interference light, wherein
the interference optical system includes a first optical path coupling member that is disposed on upstream side of the optical element in an optical path of the subjective inspection optical system and couples an optical path of the interference optical system with the optical path of the subjective inspection optical system.

US Pat. No. 10,767,991

LASER SCANNER

TOPCON Corporation, Toky...

1. A laser scanner comprising: a distance measuring unit which has a light emitting element for emitting a distance measuring light, a distance measuring light projecting unit for projecting said distance measuring light, a light receiving unit for receiving a reflected distance measuring light and a photodetector for receiving said reflected distance measuring light and producing alight receiving signal, and which performs a distance measurement of an object to be measured based on said light receiving signal from said photodetector,an optical axis deflecting unit provided on a distance measuring optical axis and for deflecting said distance measuring optical axis, a projecting direction detecting unit for detecting a deflection angle of said distance measuring optical axis, and
a control component for controlling a deflecting operation of said optical axis deflecting unit and a distance measuring operation of said distance measuring unit,
wherein said optical axis deflecting unit comprises a pair of optical prisms capable of rotating with said distance measuring optical axis as a center and motors which individually and independently rotate said optical prisms,
and wherein said control component is configured to control a deflection by said optical axis deflecting unit by controlling rotating directions, rotating speeds, and a rotation ratio of said pair of optical prisms, scan said distance measuring light within a measurement range as set, and acquire scanning data under scanning conditions corresponding to said measurement range, and
wherein a local measurement range is set within the measurement range, said control component individually rotates said two optical prisms in predetermined deflection angle ranges, integrally rotates said two optical prisms at a predetermined angle, and performs a local scanning within said local measurement range.

US Pat. No. 10,771,563

REMOTE OPERATION SYSTEM FOR SURVEYING INSTRUMENTS

TOPCON CORPORATION, Toky...

1. A remote operation system for surveying instruments comprising:at least one master surveying instrument; a management server; and a remote terminal, configured to communicate with each other via a first communication network; and
at least one slave surveying instrument configured to communicate with the master surveying instrument via a second communication network, wherein
the management server transmits a first operation command to make the slave surveying instrument execute a first predetermined operation to the master surveying instrument,
the master surveying instrument transmits the operation command to the slave surveying instrument, and
the master surveying instrument transmits a second operation command to make the slave surveying instrument execute a second predetermined operation to the slave surveying instrument when communication with the management server fails.

US Pat. No. 10,755,671

DEVICE, METHOD, AND PROGRAM FOR CONTROLLING DISPLAYING OF SURVEY IMAGE

TOPCON CORPORATION, Itab...

1. A display controlling device for a survey image, comprising:a panoramic image generating unit that generates a panoramic image by stitching multiple still images having different points of view;
a superposing unit that superposes an image of a laser scanning point cloud on the panoramic image, and the image of the laser scanning point cloud having a specific color; and
a point-cloud-image transparency adjuster that adjusts a transparency of the image of the laser scanning point cloud to cause the laser scanning point cloud to be visually recognized while the panoramic image underlying the image of the laser scanning point cloud is visually recognized through the image of the laser scanning point cloud; and
a point-cloud-image density adjuster that adjusts display density of the laser scanning point cloud at a specific position in the panoramic image,
wherein, at a part in a front side in the panoramic image at which display density of scanning points of the laser scanning point cloud looks low compared to a distant part in the panoramic image, the point-cloud-image density adjuster interpolates a virtual scanning point between adjacent laser scanning points of the laser scanning point cloud, in such a manner that the display density of the scanning points of the part in the front side in the panoramic image has a specific value or greater.

US Pat. No. 10,732,267

ELECTRO-OPTICAL DISTANCE METER

TOPCON Corporation, Toky...

1. An electro-optical distance meter comprising: a light source for emitting a distance measuring light, a distance measuring optical system for projecting said distance measuring light to an object to be measured, for receiving a distance measuring light from said object to be measured and for leading to a photodetector, an internal reference optical system for leading a part of said distance measuring light as an internal reference light to said photodetector, and an arithmetic processing unit for performing a distance measurement based on a light receiving result of said distance measuring light and a light receiving result of said internal reference light, wherein said internal reference optical system comprises a condenser lens for condensing said internal reference light, a scattering plate for scattering said internal reference light condensed by said condenser lens and for forming a secondary light source, and an optical fiber for receiving said internal reference light emitted from said secondary light source and for leading to said photodetector and said internal reference optical system is constituted in such a manner that a light component of said internal reference light emitted from an arbitrary point within a whole surface of said secondary light source enters said optical fiber, wherein, assuming that a radius of said secondary light source formed on said scattering plate is rd, a radius of an incident end of said optical fiber is rf, and a smaller angle is ?, of a half angle ?d of a spread angle of a luminous flux scattered by said scattering plate and an optical fiber receiving angle ?f, an interval d between said secondary light source and said optical fiber is expressed as follows:d?(rd+rf)/tan ?.

US Pat. No. 10,816,338

SURVEYING DEVICE

TOPCON CORPORATION, Itab...

1. A surveying device comprising:a handle with a cantilever structure having a rod-like grip and a first support that supports an end of the grip; and
a main body with an upper part structure of a double headed structure having a first part and a second part that extend upwardly,
wherein a second support has a light receiving part for optical communication and has the rod-like grip that is attachably and detachably secured, the second support is secured to an upper part of the second part, the first support is attachably and detachably secured to an upper part of the first part, and the first support includes a first button that moves an engaging member engaging with the first part.

US Pat. No. 10,816,665

SURVEYING SYSTEM

TOPCON Corporation, Toky...

1. A surveying system comprising: a plurality of measuring units, each having an arithmetic control component, and a leveling unit common to said plurality of measuring units, said leveling unit has a recessed fitting portion on an upper surface, and said plurality of measuring units each has a projecting fitting portion which is engageable and disengageable with respect to said recessed fitting portion, wherein said recessed fitting portion comprises a cylindrical hole, wherein one portion of a peripheral edge of the fitting hole is notched to form a notched recessed portion, and said projecting fitting portion comprises a protruding cylindrical portion having a projecting portion protruding in a radial direction from an outer peripheral surface of the cylindrical portion, and wherein said plurality of measuring units are constituted to be attachable and detachable with respect to said leveling unit, and in a state where each of said measuring units is mounted on said leveling unit, a same object to be measured is measured respectively, an offset amount between each of said measuring units is measured, wherein said offset amount comprises an azimuth angle offset amount and/or a machine height offset amount, and based on said offset amount, a measurement value measured in each of said measuring units is corrected and coordinate-converted by the arithmetic control component.

US Pat. No. 10,809,379

THREE-DIMENSIONAL POSITION MEASURING SYSTEM, THREE-DIMENSIONAL POSITION MEASURING METHOD, AND MEASURING MODULE

TOPCON CORPORATION, Toky...

1. A three-dimensional position measuring system comprising:a measuring module that includes a target, an omnidirectional camera, a triaxial accelerometer, an arithmetic control section, and a communication section, and can grasp a positional relationship among the target, the omnidirectional camera, and a measurement point; and
a surveying instrument including a light output section that outputs light toward the target, a measurement section that performs distance measuring and angle measuring to measure a distance and an angle to the target, and a communication section that transmits measurement data of the measurement section, wherein the target and the omnidirectional camera are arranged on a straight line, and the measurement point is disposed in a known direction from the straight line by a distance meter or a pointing rod with a known length,
wherein the arithmetic control section executes:
(a) measuring a distance and an angle to the target by the measurement section, and calculating a surveying instrument-target vector,
(b) outputting light to the target from the light output section, and based on a position of output light projected on an image imaged by the omnidirectional camera, calculating a camera-surveying instrument directional vector,
(c) based on the camera-surveying instrument directional vector in (b) above and a vertical downward directional vector obtained from the triaxial accelerometer, calculating a target-measurement point directional vector,
(d) based on the positional relationship among the target, the omnidirectional camera, and the measurement point, and the target-measurement point directional vector in (c) above, calculating a target-measurement point vector, and
(e) by synthesizing the vectors in (a) and (d) above, measuring a three-dimensional position of the measurement point.

US Pat. No. 10,810,699

POINT CLOUD DATA PROCESSING DEVICE, POINT CLOUD DATA PROCESSING METHOD, AND POINT CLOUD DATA PROCESSING PROGRAM

TOPCON CORPORATION, Toky...

1. A point cloud data processing device comprising:a highlight controlling part that, in a condition in which a first point cloud containing multiple markers for position matching and a second point cloud containing multiple markers for position matching are displayed on a display, when one of the multiple markers of one of the first point cloud and the second point cloud is specified as a first marker, highlights a corresponding marker among the multiple markers of the other point cloud as a second marker
a corresponding marker calculating part that, when a marker is specified among the multiple markers of one of the first point cloud and the second point cloud, calculates a corresponding marker among the multiple markers of the other point cloud,
wherein the corresponding marker calculating part identifies the corresponding marker on the basis of a relative positional relationship between the specified marker and at least one of the multiple markers of the one of the first point cloud and the second point cloud.

US Pat. No. 10,810,889

OPERATING DEVICE, OPERATING METHOD, OPERATING SYSTEM, AND OPERATING PROGRAM

TOPCON CORPORATION, Toky...

1. An operating device configured to perform an arithmetic operation for searching for an unmanned aerial vehicle having mounted therein a location identifying device using a navigation signal from a navigation satellite, the operating device comprising:a measured location obtaining part that obtains information of a location of the unmanned aerial vehicle, which is measured by a surveying device;
a scheduled flight location obtaining part that obtains information of a scheduled flight location of the unmanned aerial vehicle from a flight plan of the unmanned aerial vehicle;
a search area setting part that sets an area for searching for the unmanned aerial vehicle by referring to a difference between the measured location and the scheduled flight location at a specific time; and
a comparing part,
wherein the measured location represents a measured altitude, and the scheduled flight location represents a scheduled altitude,
wherein a location of the surveying device is preliminarily determined by relative positioning,
wherein the comparing part determines whether a difference between a ?UAV and a ?TS is a predetermined threshold or less on a condition that a difference between the measured altitude and the scheduled altitude is represented as ?UAV and a difference in the altitude direction of the surveying device between the location that is preliminarily determined by relative positioning and a location that is determined by independent positioning at the preliminarily determined location is represented as ?TS, and
wherein the area for searching for the unmanned aerial vehicle is set on a basis of the ?TS in a case in which the difference between the ?UAV and the ?TS is determined as being the predetermined threshold or less.

US Pat. No. 10,809,360

LASER SCANNER

TOPCON Corporation, Toky...

1. A laser scanner comprising: a scanner main unit, a support unit for supporting said scanner main unit rotatably in an up-and-down direction and in a left-and-right direction, a rotation driving unit for rotating said scanner main unit in the up-and-down direction and in the left-and-right direction and an angle detector for detecting an up-and-down angle and a left-and-right angle of said scanner main unit,wherein said scanner main unit has a light emitting element for emitting a distance measuring light, a distance measuring light projecting component for projecting said distance measuring light, a light receiving component for receiving a reflected distance measuring light, a photodetector for receiving said reflected distance measuring light and producing a light receiving signal, a distance measuring component for performing a distance measurement of an object to be measured based on said light receiving signal from said photodetector, an optical axis deflecting unit provided on a distance measuring optical axis and for deflecting said distance measuring optical axis, a projecting direction detecting unit for detecting a deflection angle of said distance measuring optical axis, a storage component which stores three-dimensional design drawing data of said object to be measured and a control component for controlling an operation of said rotation driving unit, a deflecting operation of said optical axis deflecting unit and a distance measuring operation of said distance measuring component,
wherein said optical axis deflecting unit comprises a pair of optical prisms which enables to rotate with said distance measuring optical axis as a center and motors for individually and independently rotating said optical prisms, and
wherein said control component is configured to set a measurement range based on said design drawing data, to control said rotation driving unit and direct said scanner unit toward a ridge line or intersection point in said design drawing data, to acquire a scanning data by scanning said distance measuring light in said measuring range and to extract an actual ridge line or an actual intersection point of said object to be measured based on said scanning data acquirc a scanning data.

US Pat. No. 10,800,344

AERIAL PHOTOGRAMMETRIC DEVICE AND AERIAL PHOTOGRAMMETRIC METHOD

TOPCON Corporation, Toky...

1. An aerial photogrammetric device comprising: an aerial vehicle configured to fly autonomously or remotely controlled, an image pickup device provided on said aerial vehicle and having an optical axis extending in a vertical direction, a gyro unit, an attitude detecting device for detecting a tilt angle and a tilting direction with respect to a horizontality or a verticality of said optical axis, a position measuring device, and a control device for controlling a flight of said aerial vehicle, wherein said control device is configured to control an attitude and a flight condition of said aerial vehicle based on signals from said gyro unit, acquire images at two points by said image pickup device, acquire image acquiring positions at a time of image acquisition from said position measuring device, acquire a detection result of said attitude detecting device at the time of image acquisition, correct said images acquired at said two points into horizontal images based on said detection result, and perform a relative orientation of said obtained horizontal images.

US Pat. No. 10,802,145

MEASURING DEVICE, MEASURING METHOD, AND PROGRAMS THEREFOR

TOPCON CORPORATION, Toky...

1. A device for measuring illuminance of lighting equipment, comprising:processing circuitry configured to perform as a measurement planned position data receiver that receives two-dimensional position data of measurement planned positions at each of which illuminance of lighting equipment is to be measured by an illuminometer, the illuminometer including a reflective prism in an integrated manner;
the processing circuitry further configured to perform as a current position data receiver that receives two-dimensional position data of a current position of the illuminometer, which is obtained by measuring a position of the reflective prism by a position measuring device using laser light; and
the processing circuitry further configured to perform as a graphical user interface that displays a two-dimensional position relationship between the measurement planned position and the illuminometer, on a display,
wherein the graphical user interface displays a horizontal direction and a distance from the measured two-dimensional position of the illuminometer and the measurement planned position, on the display.

US Pat. No. 10,799,116

DEVICE AND METHOD OF MEASURING BLOOD FLOW

TOPCON CORPORATION, Itab...

1. A blood flow measurement device that generates blood flow information based on data collected by repeatedly scanning an interested cross section intersecting a blood vessel of an eye fundus using optical coherence tomography, the blood flow measurement device comprising:a data collector that collects data by scanning four or more cross sections intersecting the blood vessel using optical coherence tomography, wherein the four or more cross sections are different than the interested cross section;
a first calculator that determines a first gradient of the blood vessel by analyzing a first data group consisting of two or more pieces of data among four or more pieces of data corresponding to the four or more cross sections collected by the data collector and that determines a second gradient of the blood vessel by analyzing a second data group consisting of two or more pieces of data including one or more pieces of data that is not included in the first data group;
a second calculator that determines a gradient of the blood vessel at the interested cross section based on the first gradient and the second gradient determined by the first calculator; and
a blood flow information generator that generates the blood flow information based on the gradient determined by the second calculator and the data collected by repeatedly scanning the interested cross section.

US Pat. No. 10,802,471

DEVICE, METHOD, AND PROGRAM FOR CONTROLLING AGRICULTURAL MACHINE

TOPCON CORPORATION, Toky...

1. An agricultural machine control device that controls a mobile body, the mobile body configured to apply fertilizer to a crop while traveling in a field,the mobile body including a fertilizer distributing device that distributes the fertilizer onto the field,
the fertilizer distributing device being configured in such a manner that an amount of the fertilizer to be discharged per unit time by the fertilizer distributing device is not changed during distribution of the fertilizer,
the device comprising a speed signal generator that generates a speed signal to cause the mobile body to travel at a speed corresponding to a planned amount of the fertilizer to be applied,
wherein the amount of the fertilizer distributed onto the field is adjusted by adjusting the speed of the mobile body.

US Pat. No. 10,786,153

OPHTHALMOLOGIC IMAGING APPARATUS

TOPCON CORPORATION, Toky...

1. An ophthalmologic imaging apparatus comprising:a data acquisition device including an optical coherence tomography scanner that acquires data by scanning a subject's eye using optical coherence tomography;
an image sensor that photographs the subject's eye to obtain a front image;
a controller circuit configured that controls the data acquisition device to perform a series of scans along a preset path group; and
an error detector circuit that detects an error based on a series of data acquired by the series of scans and two or more front images that include one or more front images obtained by the image sensor corresponding to the series of scans, wherein
the path group includes a plurality of paths having mutually different positions,
the data acquisition device performs successive scans on the plurality of paths with a first rate,
the image sensor repetitively photographs the subject's eye to obtain two or more front images with a second rate that is slower than the first rate. and
the error detector circuit includes
a first error detector circuit that detects occurrence of a shift of the subject's eye based on a series of data acquired by the data acquisition device from the plurality of paths with the first rate, and
a second error detector circuit that detects an amount of the shift of the subject's eye based on the two or more front images acquired by the image sensor with the second rate.

US Pat. No. 10,772,498

OPHTHALMOLOGICAL IMAGING DEVICE

TOPCON CORPORATION, Itab...

1. An ophthalmological imaging device comprising:an objective lens;
an interference optical system that divides light from a light source into measurement light and reference light, causes the measurement light to become incident on a subject's eye via the objective lens, and detects interference light between the reference light and return light of the measurement light that has exited from the subject's eye and passed through the objective lens;
an optical scanner that deflects the measurement light;
a controller that controls the optical scanner such that a position away from an optical axis of the objective lens is set as a center to deflect the measurement light; and
an image forming part that forms an image of the subject's eye based on a detection result of the interference light by the interference optical system,
wherein the measurement light is deflected by displacing a control center of the optical scanner, and an amount of the displacement of the control center of the optical scanner with respect to the optical axis of the objective lens is set based on a size of an artifact in a direction of deflection of the measurement light by the optical scanner.

US Pat. No. 10,767,990

DEVICE, METHOD, AND SYSTEM FOR PROCESSING SURVEY DATA, AND PROGRAM THEREFOR

TOPCON CORPORATION, Itab...

1. A survey data processing system comprising a processor or circuitry configured to execute the following processing by using image data of aerial photographic images that are obtained from an aerial vehicle that is flying, the aerial vehicle mounted with an inertial navigation unit and a first GNSS location identifying unit for identifying location by using a GNSS,the processing comprising:
receiving image data of aerial photographic images obtained by photographing a vehicle from the aerial vehicle, the vehicle configured to travel on a ground and equipped with a second GNSS location identifying unit and an identification marker for distinguishing the vehicle, the second GNSS location identifying unit configured to identify location by using a GNSS;
receiving location data of the vehicle that is obtained by the second GNSS location identifying unit;
detecting the identification marker of the vehicle in the image data;
identifying the vehicle in the aerial photographic images by using the identification marker;
identifying a location of the identification marker on a basis of the location data of the vehicle and identification information obtained by identifying the vehicle;
acquiring two or more aerial photographic images from among the image data, the two or more aerial photographic images being obtained from the aerial vehicle that is flying, at different viewpoints, and containing the same area;
acquiring the identification marker from each of the acquired two or more aerial photographic images;
calculating location of the identification marker that is acquired from each of the acquired two or more aerial photographic images, by a method of intersection; and
comparing the calculated location of the identification marker with location of the identification marker that is identified by the second GNSS location identifying unit.

US Pat. No. 10,753,739

STRUCTURE FOR APPLYING PRE-LOAD TO ROLLING BEARING AND THREE-DIMENSIONAL SURVEY DEVICE HAVING THE SAME

TOPCON CORPORATION, Itab...

1. A structure for applying a pre-load to a rolling bearing of a rotational mirror driving unit,the rotational mirror driving unit including the rolling bearing, a mirror, and a rotational driving part, the rolling bearing having an outer ring and an inner ring to which a first rotating shaft is fixed, the mirror constituting an optical system and being attached to the first rotating shaft, and the rotational driving part configured to rotationally drive the first rotating shaft,
the structure comprising:
an engaging member that engages with the outer ring;
a plate spring that detachably engages with the engaging member and that has a fastening part to be fixed to a fixing member; and
a joining member that detachably joins the engaging member and the plate spring,
wherein in a condition in which the fastening part of the plate spring is fastened to the fixing member by a fastening member, the plate spring elastically deforms, and the elasticity of the plate spring applies a pre-load to the outer ring via the engaging member.

US Pat. No. 10,743,760

OPHTHALMOLOGICAL DEVICE AND OPHTHALMOLOGICAL INSPECTION SYSTEM

TOPCON CORPORATION, Itab...

1. An ophthalmological device comprising:an objective lens;
an objective measurement optical system that irradiates light onto a subject's eye via the objective lens and detects returning light from the subject's eye;
an interference optical system that splits light from a light source into reference light and measurement light, projects the measurement light onto the subject's eye via the objective lens, generates interference light between returning light of the measurement light and the reference light, and detects the generated interference light;
an image forming circuit that forms a tomographic image of the subject's eye based on a detection result of the interference light by the interference optical system;
an attention site specifying circuit that specifies an attention site of the subject's eye based on the returning light from the subject's eye detected by the objective measurement optical system; and
an ocular refractive power calculator that calculates a refractive power of the subject's eye based on the returning light from the subject's eye detected by the objective measurement optical system, wherein
the ocular refractive power calculator calculates the refractive power of the subject's eye based on a ring image obtained by deleting or interpolating a measurement result at the attention site acquired by the objective measurement optical system.

US Pat. No. 10,743,762

OPHTHALMOLOGIC APPARATUS

TOPCON CORPORATION, Toky...

1. An ophthalmologic apparatus comprising:an OCT optical system configured to acquire OCT data of a fundus of a subject's eye by projecting measurement light onto the fundus;
an alignment unit configured to perform alignment of the OCT optical system with reference to a predetermined site of the subject's eye;
an image forming unit configured to form a tomographic image of the fundus based on the OCT data acquired by the OCT optical system which has been aligned by the alignment unit;
a first calculator configured to calculate a first tilt angle of the tomographic image; and
a second calculator configured to calculate a second tilt angle of the fundus by correcting the first tilt angle based on alignment result of the OCT optical system with respect to the predetermined site by the alignment unit.

US Pat. No. 10,748,257

POINT CLOUD COLORIZATION WITH OCCLUSION DETECTION

TOPCON CORPORATION, Itab...

1. A method for colorizing a set of point cloud data points associated with a particular object using a plurality of candidate images comprising:for each respective data point in the set of point cloud data points:
selecting, from a subset of the plurality of candidate images that include an un-occluded point of the particular object corresponding to the respective data point, an image having a shortest subject distance to the un-occluded point of the particular object; and
colorizing the respective data point based on a color in the selected image of the un-occluded point of the particular object corresponding to the respective data point.

US Pat. No. 10,732,298

OPERATING DEVICE, OPERATING METHOD, OPERATING SYSTEM, AND OPERATING PROGRAM

Topcon Corporation, Itab...

1. An operating device configured to be used in a search for an unmanned aerial vehicle that flies along a predetermined flight path, the operating device comprising:an estimating part that estimates, on the basis of location data of a surveying device that surveys a location of the unmanned aerial vehicle by using laser light and on the basis of the predetermined flight path, a direction of the unmanned aerial vehicle as seen from the surveying device at a specific time;
a search controlling part that controls to allow the surveying device to search for the unmanned aerial vehicle, on the basis of the estimated direction; and
an apparent speed estimating part that estimates an apparent speed of the unmanned aerial vehicle as seen from the surveying device on the basis of the predetermined flight path, wherein the surveying device is configured to search for the unmanned aerial vehicle by using searching laser light, and the search controlling part controls to allow a movable part of the surveying device to move at a double speed in terms of the apparent speed of the unmanned aerial vehicle, which is estimated by the apparent speed estimating part, in the search for the unmanned aerial vehicle performed by the surveying device.

US Pat. No. 10,724,860

SURVEYING DEVICE AND SURVEY SYSTEM

Topcon Corporation, Itab...

1. A surveying system comprising:a photographing device provided in a movable body and taking an image during a predetermined photographing period; and
a surveying device determining a position of the photographing device, the surveying device comprising:
a photographing condition obtaining unit capable of obtaining photographing condition information including at least a photographing start time, the predetermined photographing period, and a number n of images by receiving a shutter signal from the photographing device while being connected with the photographing device through a synchro cable;
a survey time measurement unit performing time measurement depending on the photographing start time obtained by the photographing condition obtaining unit even while being not connected with the photographing device through the cable, the photographing device:
transmitting a photographing start signal while being connected to the photographing condition obtaining unit;
thereafter moving, and starting a photographing operation while being disconnected from the photographing condition obtaining unit; and
taking images during a predetermined photographing period;
a surveying unit tracking the photographing device and determining a position of the photographing device during a predetermined surveying period;
a survey control unit stamping a value of time count measured by the survey time measurement unit to a survey result measured by the surveying unit; and
a photographing position analysis unit:
calculating a photographing time based on the photographing condition information and the value of time count measured by the survey time measurement unit,
associating a survey result obtained by the surveying unit and matching the photographing time with a photographing position of each image taken by the photographing device and
generating data for photogrammetry.