US Pat. No. 9,163,801

LAMP CONTROL SYSTEM AND CONTROL DEVICE

KOITO MANUFACTURING CO., ...

1. A lamp control system comprising:
a lamp configured to form a light distribution pattern ahead of a vehicle using a non-illumination forming unit, wherein the
light distribution pattern comprises an illumination region and a non-illumination region, and the illumination region comprises
at least one longitudinal cutoff line at a boundary between the illumination region and the non-illumination region;

a detector configured to detect a front vehicle in front of the vehicle;
an information acquiring unit configured to acquire a displacement direction and a displacement speed of the front vehicle;
and

a light distribution controller configured to control the light distribution pattern using the non-illumination region forming
unit such that the front vehicle detected by the detector is positioned in the non-illumination region with a predetermined
interval between the longitudinal cutoff line and the front vehicle,

wherein when the front vehicle is approaching the longitudinal cutoff line, the light distribution controller is configured
to control the light distribution pattern based on the displacement direction and the displacement speed so as to increase
the predetermined interval between the longitudinal cutoff line and the front vehicle by a first predetermined value, and

wherein when the front vehicle is moving away from the longitudinal cutoff line, the light distribution controller is configured
to control the light distribution pattern based on the displacement direction and the displacement speed so as to decrease
the predetermined interval between the longitudinal cutoff line and the front vehicle by a second predetermined value.

US Pat. No. 9,166,112

LIGHT EMITTING MODULE, METHOD OF MANUFACTURING THE LIGHT EMITTING MODULE, AND LAMP UNIT

KOITO MANUFACTURING CO., ...

1. A light emitting module comprising:
a light emitting element configured to emit a light having a main wavelength within a certain range;
a light wavelength conversion member configured to convert the wavelength of the light emitted by the light emitting element
then emit the light; and

an optical filter configured to transmit a light with the main wavelength emitted by the light emitting element and reflect
a light with a main wavelength which has been converted by the light wavelength conversion member, wherein

the light wavelength conversion member is formed into a plate shape, wherein
the optical filter is provided on the surface of the light wavelength conversion member and between the light wavelength conversion
member and the light emitting element, and wherein

the optical filter has a higher transmittance than a reflectance with respect to the light having a wavelength within a predetermined
overlapping wavelength range where the wavelength range of the light emitted by the light emitting element and that of the
light converted by the light wavelength conversion member are overlapped with each other, and the maximum incident angle for
transmission is 45 degrees or more and less than 90 degrees.

US Pat. No. 9,468,072

VEHICLE LAMP SYSTEM

KOITO MANUFACTURING CO., ...

1. A vehicle lamp system comprising:
a plurality of light source units provided in a headlamp unit; and
a controller configure to control the plurality of light sources units,
wherein the controller sequentially turns on the plurality of light source units in response to first control signals for
operating a vehicle being input, the first control signals comprising at least one of a first signal indicating a state where
ignition switch for the vehicle is turned on and a second signal indicating a state where a lamp switch for the headlamp unit
is turned on during stopping of the vehicle.

US Pat. No. 9,187,026

LIGHTING CONTROL SYSTEM FOR VEHICLE LAMP

Koito Manufacturing Co., ...

1. A lighting control system for a vehicle lamp, the system comprising:
a plurality of lamps comprising:
a main lamp; and
a separate lamp which is separated from the main lamp;
a lighting controller configured to control lighting of the plurality of lamps; and
a relay switch coupled to each of the plurality of lamps, wherein the relay switch is configured to provide power to the plurality
of lamps based on a relay signal output from the lighting controller,

wherein the main lamp comprises:
a first lamp lighting circuit configured to perform a lighting operation of the main lamp; and
a control circuit configured to output a lighting signal based on a lighting control signal output from the lighting controller,
wherein the separate lamp comprises:
a second lamp lighting circuit configured to perform a lighting operation of the separate lamp, and
wherein the first lamp lighting circuit and the second lamp lighting circuit are configured to perform the lighting operations
based on the lighting signal output from the control circuit.

US Pat. No. 9,267,655

VEHICLE LAMP

KOITO MANUFACTURING CO., ...

1. A vehicle lamp comprising:
a light emitting diode (LED) mount on which an LED is placed;
an attachment that fixes the LED to the LED mount;
a power supply that supplies power to the LED;
a first optical member that controls light emitted from the LED; and
a second optical member that controls light emitted from the first optical member,
wherein the power supply and the first optical member are provided at the attachment, and
the attachment includes a pushing member that pushes the LED against the LED mount.

US Pat. No. 9,099,615

LIGHT EMITTING DEVICE THAT INCLUDES WAVELENGTH CONVERSION LAYER HAVING OUTER PERIPHERAL PORTION HAVING CONVEX PROJECTING PART WITH LIGHT REFLECTION LAYER FORMED THEREON

Koito Manufacturing Co., ...

1. A light emitting device comprising:
a semiconductor light emitting element including an emitting surface; and
a wavelength conversion layer including:
an input surface which is positioned to face the emitting surface of the semiconductor light emitting element and to which
light emitted from the emitting surface of the semiconductor light emitting element is incident;

an output surface from which the light that is incident to the input surface is emitted to an outside; and
an outer peripheral portion positioned between the input surface and the output surface,
wherein at least a part of the outer peripheral portion of the wavelength conversion layer includes a projecting portion that
is convex to an outer side,

wherein the projecting portion has a first inclined part continued from the input surface and a second inclined part continued
from the output surface,

wherein a light reflection layer is provided on the outer peripheral portion of the wavelength conversion layer to reflect
the light incident through the input surface, and

wherein a first reflection surface that is in contact with the first inclined part and a second reflection surface that is
in contact with the second inclined part are formed on the light reflection layer.

US Pat. No. 9,097,402

VEHICLE LAMP WITH ELONGATED COVER AND A LIGHT DIFFUSIVE PORTION

KOITO MANUFACTURING CO., ...

1. A vehicle lamp comprising:
a light emitting portion having an elongated shape;
a lamp body configured to accommodate therein the light emitting portion; and
a transparent cover configured to cover an opening portion in the lamp body,
wherein the transparent cover comprises:
a main light exit surface portion positioned in front of the light emitting portion,
an auxiliary light exit surface portion inclined with respect to the main light exit surface portion, the auxiliary light
exit surface having a fixing portion configured to fix the transparent cover and the lamp body together, and

a light diffusive portion formed on at least the periphery of a portion of the auxiliary light exit surface portion where
the fixing portion is provided,

wherein the light diffusive portion has a plurality of steps that are formed on an inner surface of the auxiliary light exit
surface portion and extend in a front-rear direction of the lamp, and

wherein the respective steps are aligned along an extending direction of the lamp that is perpendicular to the front-rear
direction.

US Pat. No. 9,133,998

VEHICULAR ILLUMINATION LAMP

KOITO MANUFACTURING CO., ...

1. A vehicular illumination lamp comprising: a light source; a reflector that reflects light from the light source forward;
a translucent cover provided in front of the reflector; and a shade that blocks light traveling downward from the light source,
said vehicular illumination lamp being configured to form a light distribution pattern having a cut-off line at its upper
end, wherein:
the translucent cover is, in an upper area thereof, formed to be inclined rearward, and
the reflector has, in a lower reflection area thereof, a light non-incident area on which light from the light source is not
incident since blocked by the shade, and said light non-incident area is formed with an additional reflection portion for
reflecting light, which is from the light source and reflected by an upper reflection area of the reflector and then reflected
by the upper area of the translucent cover, in a direction below the cut-off line.

US Pat. No. 9,175,823

VEHICULAR HEADLAMP

KOITO MANUFACTURING CO., ...

1. A vehicular headlamp, comprising:
a basic lamp unit configured to form a main light distribution pattern that is controlled in light distribution so as to satisfy
illuminance requirements at a plurality of predetermined sites in a low beam light distribution pattern which is projected
on a vertical virtual screen positioned in front of a vehicle; and

a plurality of additional lamp units controlled in light distribution so as to irradiate light to any one of left and right
diffusion regions adjacent to the main light distribution pattern,

wherein the vehicular headlamp is formed to match a slanted shape of the vehicle's front portion by shifting the positions
of the basic lamp unit and the plurality of the additional lamp units relative to the vehicular depth direction, and

wherein the low beam light distribution pattern is formed on the vertical virtual screen by combining the basic lamp unit
and the plurality of additional lamp units.

US Pat. No. 9,140,424

VEHICLE HEADLAMP

KOITO MANUFACTURING CO., ...

1. A vehicle headlamp comprising:
a first lamp unit configured to form at least a cutoff line of a light distribution pattern for a low beam; and
a second lamp unit having a resolution that is lower than that of an illumination region which can be provided by the first
lamp unit, wherein

the vehicle headlamp is configured to combine illumination by the first lamp unit and illumination by the second lamp unit
so as to provide a high beam light distribution function and a low beam light distribution function.

US Pat. No. 9,133,997

METHOD OF CONTROLLING VEHICLE LAMP AND VEHICLE LAMP

KOITO MANUFACTURING CO., ...

1. A method of controlling a vehicle lamp,
the vehicle lamp comprising
a projection lens,
a two-dimensional image forming device that is disposed near a rear focal point of the projection lens and that includes a
projection plane formed of a plurality of optical elements arranged in a matrix manner, and

a light source that illuminates with light the projection plane of the two-dimensional image forming device,
the method comprising:
forming a light distribution pattern by projecting an illumination pattern, which is formed on the projection plane by driving
the optical elements individually, ahead of the vehicle lamp by the projection lens,

wherein the light source illuminates a first region inside the projection plane and a second region outside the projection
plane,

wherein both end portions, in a lateral direction, of the light distribution pattern are substantially parallel to each other,
wherein light is output toward the projection lens from each optical element at an output rate per unit time of each optical
element, and

wherein the output rates per unit time of the optical elements disposed at an end portion of the projection plane are set
to be lower than those of the optical elements other than the optical elements disposed at the end portion of the projection
plane.

US Pat. No. 9,121,576

LIGHT WAVELENGTH CONVERSION UNIT

KOITO MANUFACTURING CO., ...

1. A light wavelength conversion unit comprising:
a light wavelength conversion member configured to convert a wavelength of light that has entered from an incident surface
and configured to emit the wavelength-converted light from an emission surface; and

a light reflection layer configured to reflect light inside the light wavelength conversion member, the light reflection layer
being provided on a predetermined surface in a surface of the light wavelength conversion member, wherein the predetermined
surface excludes the incident surface and the emission surface,

wherein the light wavelength conversion member is such that an average roughness Ra of the predetermined surface is greater
than or equal to 0.5 ?m.

US Pat. No. 9,052,080

VEHICULAR PROJECTOR HEADLAMP

KOITO MANUFACTURING CO., ...

1. A vehicular projector headlamp comprising:
a projection lens;
a first LED element and a second LED element that are light sources and that are arranged on opposite sides of an optical
axis of the projection lens so as to substantially face each other;

a first reflector that has a curved first reflective surface having a first focal point located at the first LED element and
a second focal point located in proximity to a rear focal point of the projection lens; and

a second reflector that has a curved second reflective surface having a first focal point located at the second LED element
and a second focal point located in proximity to the rear focal point of the projection lens, wherein the second reflective
surface faces the first reflective surface;

wherein
a cross section of at least one of the first reflective surface and the second reflective surface, including the optical axis
of the projection lens, has part of an elliptic curve;

the first reflective surface and the first LED element are arranged on opposite sides of the optical axis of the projection
lens such that light emitted from the first LED element is reflected by the first reflective surface, and

the second reflective surface and the second LED element are arranged on opposite sides of the optical axis of the projection
lens such that light emitted from the second LED element is reflected by the second reflective surface.

US Pat. No. 9,327,977

APATITE CRYSTAL

KOITO MANUFACTURING CO., ...

1. An apatite crystal, wherein the apatite crystal is a single crystal expressed by a general formula (M2)5(PO4)3X where M2 indicates at least one type of element selected from the group consisting of bivalent alkaline-earth metals and Eu, and X
indicates at least one type of element or molecule selected from the group consisting of halogen elements, and wherein the
single crystal is of a tubular shape.

US Pat. No. 9,054,280

LIGHT EMITTING MODULE

KOITO MANUFACTURING CO., ...

1. A light emitting module comprising:
a first phosphor layer; and
a second phosphor layer, whose wavelength after a conversion of wavelength is longer than that of the first phosphor layer,
wherein the first phosphor layer is formed in an illumination area of light emitted from a light emitting element, and the
first phosphor layer converts a wavelength of the light from the light emitting element and emits the wavelength-converted
light from an emission surface,

at least part of the second phosphor layer is formed in a predetermined area where no light is illuminated from said light
emitting element and where light is illuminated from the first phosphor layer,

the at least part of the second phosphor layer formed in said predetermined area converts the wavelength of the light from
the first phosphor layer and emits the wavelength-converted light from the emission surface through the first phosphor layer,

at least part of the second phosphor layer is formed in between a plane including a light emitting surface of the light emitting
element and a mounting surface of a substrate on which the light emitting element is mounted,

the first phosphor layer is formed nearer to a light emitting direction side of the light emitting surface than the second
phosphor layer,

the second phosphor layer is formed starting from the mounting surface and further toward the light emitting direction side
of the light emitting surface beyond the plane, in such a manner as to cover the light emitting surface, and

concentration of phosphors in a region of the second phosphor layer away from the emission surface is higher than concentration
of phosphors in a region directly above the emission surface.

US Pat. No. 9,080,738

VEHICULAR LAMP

KOITO MANUFACTURING CO., ...

1. A vehicular headlamp comprising:
a lamp body including an opening at one side;
a light-emitting diode that is used as a light source and that emits visible light;
a light transmitting member that is arranged in a path of the emitted light and through which the light is passed, and
a projection lens, wherein
the light transmitting member contains an infrared ray absorbent which absorbs infrared rays, and
at least one of constituent elements of the vehicular headlamp is arranged at or near a rear focal point of the projection
lens,

the light transmitting member is an outer cover that is attached to the lamp body to close the opening,
the lamp body and the outer cover constitute a lamp casing, and
the light-emitting diode and the projection lens are arranged inside the lamp casing;
wherein the projection lens is interposed between the outer cover and the light-emitting diode such that the visible light
emitted by the light-emitting diode first passes through the projection lens and then passes through the outer cover.

US Pat. No. 9,470,390

VEHICULAR LAMP

KOITO MANUFACTURING CO., ...

1. A vehicular lamp comprising:
a light source; and
a light guide that guides light emitted by the light source and emits the light forward, wherein:
the light guide includes a sub-light guiding part and a main light guiding part that are arranged adjacent to each other in
a first direction that intersects with a lamp front-rear direction;

the sub-light guiding part extends in a second direction that intersects with both of the lamp front-rear direction and the
first direction;

the sub-light guiding part is configured such that the light that enters the sub-light guiding part from the light source
is guided in the second direction and is emitted to the main light guiding part;

the main light guiding part extends in the lamp front-rear direction and the second direction; and
the main light guiding part is configured such that the light that is emitted by the light source and enters the main light
guiding part through the sub-light guiding part is internally reflected at a rear end face of the main light guiding part,
and is emitted forward through a front end face of the main light guiding part.

US Pat. No. 9,200,773

INCLINATION SENSOR DEVICE AND VEHICLE LAMP SYSTEM USING THE SAME

KOITO MANUFACTURING CO., ...

1. An inclination sensor device comprising:
a substrate which mounts an inclination sensor configured to calculate an inclination angle of a vehicle;
a case which accommodates the substrate;
a first positioning mechanism which positions the substrate relative to the case in a first direction that is substantially
parallel to a first main surface of the substrate; and

a second positioning mechanism which positions the substrate relative to the case in a second direction that is substantially
perpendicular to the first main surface of the substrate;

wherein at least one of the first positioning mechanism and the second positioning mechanism comprises:
a protrusion provided on one of the substrate and the case, the protrusion extending in the first direction; and
a protrusion receiving portion provided in the other of the substrate and the case, and
wherein the substrate is positioned relative to the case by press-fitting the protrusion to the protrusion receiving portion.

US Pat. No. 9,327,639

VEHICLE HEADLAMP

KOITO MANUFACTURING CO., ...

1. A vehicle headlamp comprising:
a first lamp unit having a first irradiation range, the first lamp unit being configured such that the first irradiation range
is adjustable in a horizontal direction above a horizontal cutoff line of a low beam light distribution pattern; and

a second lamp unit having a second irradiation range, the second lamp unit being configured such that the second irradiation
range is adjustable in a vertical direction,

wherein a resolution of the second lamp unit with respect to the second irradiation range in the vertical direction is higher
than a resolution of the first lamp unit with respect to the first irradiation range in the horizontal direction above the
horizontal cutoff line.

US Pat. No. 9,261,253

VEHICLE HEADLAMP AND PROJECTION LENS MOUNTING METHOD

KOITO MANUFACTURING CO., ...

1. A projection lens mounting method for a vehicle headlamp, the vehicle headlamp comprising:
a light source configured to emit light;
a reflector configured to reflect the light;
a projection lens through which the light is projected; and a lens holder holding the projection lens,
wherein the projection lens comprises a positioning portion, and
wherein the lens holder is formed with a jig insertion hole at a location corresponding to the positioning portion in a direction
around an optical axis of the projection lens,

the projection lens mounting method comprising:
mounting the projection lens to the lens holder such that a surface of the positioning portion is visible through the jig
insertion hole;

inserting a positioning jig through the jig insertion hole;
engaging the positioning jig with the positioning portion; and
positioning the projection lens in the direction around the optical axis of the projection lens, and
removing the positioning jig out of the jig insertion hole,
wherein the lens holder comprises a securing wall and a securing tongue, and
wherein the projection lens mounting method further comprises:
bending the securing tongue to press the projection lens toward the securing wall to hold the projection lens with the securing
wall therebetween.

US Pat. No. 9,265,109

LIGHT SOURCE CONTROL DEVICE

KOITO MANUFACTURING CO., ...

1. A light source control device comprising:
a driver circuit that generates a drive current flowing through a plurality of semiconductor light sources connected in series
and that performs control such that an amount of the drive current is brought close to a target value; and

a bypass/limiter circuit connected in parallel with at least part of the plurality of semiconductor light sources,
wherein the bypass/limiter circuit includes:
a bypass switch including an N-channel MOSFET having a gate, a source and a drain, wherein ON/OFF state of the bypass switch
is controlled according to a drive signal applied across the gate and the source of the N-channel MOSFET; and

a clamp circuit provided between the gate and the drain of the N-channel MOSFET, wherein the clamp circuit clamps the gate-drain
voltage of the N-channel MOSFET below a predetermined voltage level VCL, and wherein

in a condition where a low voltage VL is applied across the gate and the source of the N-channel MOSFET such that the bypass
switch is in off-state, a voltage across the at least part of the plurality of semiconductor light sources is clamped below
an upper limit given by VL+VCL.

US Pat. No. 9,249,941

VEHICLE LAMP

KOITO MANUFACTURING CO., ...

1. A vehicle lamp comprising:
a semiconductor light emitting device;
a thermally conductive portion which is in contact with the semiconductor light emitting device;
a heatsink configured to dissipate a heat generated by the semiconductor light emitting device; and
a housing in which the semiconductor light emitting device, the thermally conductive portion and the heatsink are accommodated,
wherein the heatsink comprises:
a base which is in contact with the thermally conductive portion; and
a plurality of plate fins which are arranged at intervals to protrude from the base, each of the plate fins comprising a plate
surface which faces the plate surface of an adjacent one of the plate fins and which upwardly extends in a direction along
the base, the plate fins being accommodated within the housing,

wherein the housing comprises an inner surface which is arranged directly above the plurality of plate fins and which is oblique
with respect to a vertical direction; whereby air flowing between the plate fins is directed toward the inner surface,

wherein the base comprises:
a front surface to which the thermally conductive portion is fixed; and
a rear surface from which the plurality of plate fins rearwardly protrudes,
wherein the rear surface of the base is downwardly oblique with respect to the vertical direction.

US Pat. No. 9,162,607

VEHICULAR LAMP

KOITO MANUFACTURING CO., ...

1. A vehicular lamp, comprising:
a light-emitting portion connected in series to an input terminal to which a power supply voltage based on an on-board battery
is configured to be applied, and comprising a plurality of light-emitting elements connected in series;

a series connection circuit comprising a first current limiting resistor and a second current limiting resistor, which is
inserted in series between the input terminal and the light-emitting portion;

a resistor switching switch connected in parallel to one of the first current limiting resistor and the second current limiting
resistor;

bypass switches, each of which is connected in parallel to a required one of the light-emitting elements in the light-emitting
portion; and

a control circuit that turns off the resistor switching switch when at least one of the bypass switches is turned on.

US Pat. No. 9,157,596

VEHICLE LAMP

KOITO MANUFACTURING CO. L...

1. A vehicle lamp comprising:
an optical member;
a first member fixed to the optical member;
a lamp body having an opening; and
a second member fixed to the lamp body to be engageable with the first member,
wherein the first member and the second member are engaged with each other to constitute at least one supporting unit of an
aiming mechanism, and the optical member is tiltably supported by the aiming mechanism, and

the second member has a cylindrical shape having a front side opening inserted into the opening of the lamp body so as to
be fixed to the lamp body and a rear side opening covered by a cover.

US Pat. No. 9,050,927

CONTROL DEVICE FOR VEHICLE LAMP AND VEHICLE LAMP SYSTEM

KOITO MANUFACTURING CO., ...

1. A control device for controlling a vehicle lamp mounted in a vehicle, the device comprising:
a receiver configured to receive an output value from an inclination sensor mounted in the vehicle; and
a controller configured to control an optical axis of the vehicle lamp based on a vehicle attitude angle that is an inclination
angle of the vehicle with respect to a road surface, which is obtained from the output value,

wherein the controller is configured to control the optical axis in a first optical axis control mode or a second optical
axis mode, wherein an optical axis angle of the optical axis is adjusted in accordance with the obtained vehicle attitude
angle in the first optical axis mode, and the second optical axis control mode is different from the first optical axis control
mode,

wherein the controller controls the optical axis in the second optical axis control mode, when the obtained vehicle attitude
angle or the optical axis angle corresponding to the obtained vehicle attitude angle is not included in a predetermined range
or when a difference between the obtained vehicle attitude angle and a previous vehicle attitude angle used in previous optical
axis control or a difference between a position of the optical axis corresponding to the obtained vehicle attitude angle and
a current position of the optical axis is larger than a predetermined threshold value,

wherein a total angle that is an inclination angle of the vehicle with respect to a horizontal plane is obtained from the
output value of the inclination sensor,

wherein the total angle comprises: a road surface angle that is an inclination angle of the road surface with respect to the
horizontal plane; and the vehicle attitude angle, and

wherein the controller is configured to calculate the vehicle attitude angle from the total angle and control the optical
axis based on the obtained vehicle attitude angle.

US Pat. No. 9,337,399

PHOSPHOR AND LIGHT-EMITTING DEVICE

KOITO MANUFACTURING CO., ...

1. A light-emitting device, comprising:
a light-emitting element which emits ultraviolet light or short-wavelength visible light;
a first phosphor which is excited by the ultraviolet light or the short-wavelength visible light to emit visible light; and
a second phosphor which is excited by the ultraviolet light or the short-wavelength visible light to emit visible light of
a color different from that of the visible light emitted from the first phosphor,

the light-emitting device being configured to produce a mixed color by mixing light beams from the respective phosphors and
configured to emit light with a color temperature of 3,200 K or less, wherein

the first phosphor has the general formula (M2x,M3y,M4z)mM1O3X(2/n), wherein M1 represents at least one element including at least Si and selected from the group consisting of Si, Ge, Ti, Zr, and Sn, M2 represents at least one element including at least Ca and selected from the group consisting of Ca, Mg, Cd, Co, and Zn, M3 represents at least one element including at least Sr and selected from the group consisting of Sr, Ra, Ba, and Pb, X represents
at least one halogen element, M4 represents at least one element including at least Eu2+ and selected from the group consisting of rare-earth elements and Mn, m is in the range 1?m?4/3, n is in the range 5?n?7,
and x, y, and z are each in such a range as to satisfy x+y+z=1, 0.45?x?0.8, 0.05?y?0.45, and 0.03?z?0.35.

US Pat. No. 9,426,864

LIGHT EMISSION DEVICE AND LAMP UNIT

KOITO MANUFACTURING CO., ...

1. A light emission device comprising:
an organic EL panel in which an organic EL light emission portion is formed on a substrate, the organic EL panel being flexible;
and

a molding resin that shapes the organic EL panel so that the organic EL panel is in a curved state,
wherein the organic EL panel is molded together with the molding resin into the curved state.

US Pat. No. 9,301,385

ELECTRONIC UNIT

KOITO MANUFACTURING CO., ...

1. An electronic unit comprising:
an electronic body on which a heat generating component is mounted;
a resin casing in which the electronic body is housed; and
a heat diffusion sheet interposed between the casing and a region of the electronic body where the heat generating component
is mounted;

wherein:
the electronic body includes a circuit board in which the heat generating component is mounted on a first surface;
the circuit board includes a heat transfer structure for transferring heat generated by the heat generating component toward
a second surface that is on an opposite side of the circuit board from the first surface;

the heat diffusion sheet is arranged between the second surface of the circuit board and an inside surface of the casing,
in a state closely contacting the second surface of the circuit board and the inside surface of the casing; and

the heat transfer structure is formed by a heat transfer pad that is formed by a portion of a conductive film on the first
surface of the circuit board, and on which the heat generating component is mounted; a heat dissipating pad that is formed
by a portion of a conductive film on the second surface of the circuit board; and a through-hole that passes through the circuit
board in a thickness direction of the circuit board, for electrically connecting the heat transfer pad and the heat dissipating
pad together.

US Pat. No. 9,381,849

VEHICLE HEADLAMP

KOITO MANUFACTURING CO., ...

1. A vehicle headlamp comprising:
a lamp body including a lamp housing having an opening and a cover covering the opening in the lamp housing; and
a lamp unit disposed in the lamp body and including,
a light source unit having an LED light source configured to emit light, and a heat sink,
a structural unit having a reflector that reflects light from the LED light source, a projection lens configured to project
the light emitted from the LED light source and reflected by the reflector, a lens holder configured to hold the projection
lens, and a light quantity control mechanism that varies an amount of light passing therethrough,

an irradiating direction changing mechanism, including a drive source, configured to change an irradiating direction of the
light emitted from the LED light source and projected by the projection lens,

a bracket, including a frame-shaped base portion, configured to being operated by a driving force of the irradiating direction
changing mechanism and to change an orientation of an optical axis of the projection lens, and

a support base that supports the bracket,
wherein the structural unit and the light source unit are each directly mounted on the bracket,
wherein the light quantity control mechanism comprises a movable shade that rotates between a first position and a second
position, and

wherein a supported portion of the bracket is supported by the support base via a spherical bearing portion as a fulcrum upon
operation of the drive source.

US Pat. No. 9,222,638

VEHICULAR HEADLAMP

Koito Manufacturing Co., ...

1. A vehicular headlamp for a vehicle comprising:
a light source;
a projection lens having an optical axis in a longitudinal direction of the vehicle;
a reflector configured to reflect light generated from the light source to the vicinity of the optical axis toward a front
side of the vehicle;

a beam shaper including a cut-off line forming part provided in the vicinity of a rear focus of the projection lens and configured
to form a cut-off line of a light distribution pattern which is reflected from the reflector and projected through the projection
lens;

a first shaper portion protruded from a reflective surface of the beam shaper between the light source and the cut-off line
forming portion and configured to shield a portion of the light reflected from the reflector to form a dark portion in a portion
of the light distribution pattern, the reflective surface of the beam shaper being provided above the rear focus positioned
on the optical axis of the projection lens; and

a second shaper portion obliquely protruded upwardly from a side wall of the beam shaper toward a front side of the vehicle
between the cut-off line forming portion and the projection lens and configured to shield a portion of the light incident
to the lower side of the optical axis of the projection lens.

US Pat. No. 9,320,107

VEHICULAR LAMP

KOITO MANUFACTURING CO., ...

1. A vehicular lamp comprising:
a plurality of light emitting devices connected in series;
a light source power supply configured to supply an emission driving current to the plurality of light emitting devices;
one or more bypass units connected in parallel to at least some of the light emitting devices to form a bypass route of the
emission driving current so as to cause the light emitting devices to be in a turn-OFF state or to cut off the bypass route
of the emission driving current so as to cause the light emitting devices to be in a turn-ON state according to a bypass control
signal;

an abnormality detecting unit configured to generate a state signal indicating whether the one or more bypass units are in
a normal state or in an abnormal state as well as whether the light emitting device side is in a normal state or in an abnormal
state; and

a control unit configured to control the bypass route based on the state signal generated in the abnormal detecting unit such
that the light emitting devices are either in the turn-OFF state or in the turn-ON state,

wherein when a signal indicating that the one or more bypass units are abnormal is generated as the state signal, supply of
the emission driving current from the light source power supply is reduced or stopped.

US Pat. No. 9,283,886

VEHICULAR HEADLAMP

KOITO MANUFACTURING CO., ...

1. A vehicular headlamp comprising:
a lamp unit that includes a unit main body including a light source and a connecting portion arranged at least partially at
an outer circumferential side of the unit main body;

a leveling actuator that is connected to the connecting portion and that moves the lamp unit to adjust an irradiation direction
of light emitted from the light source; and

an aiming mechanism that includes a pair of aiming shafts connected to the connecting portion and that moves, through an operation
of the aiming shafts, the lamp unit to adjust an irradiation direction of light emitted from the light source, wherein:

the connecting portion has a leveling operation portion to which the leveling actuator is connected and a pair of aiming operation
portions to which the respective the aiming shafts are connected;

the pair of the aiming operation portions are arranged spaced from each other in a lateral direction of the vehicular headlamp;
and

the leveling operation portion is arranged between the pair of the aiming operation portions, on an opposite side of the unit
main body from the pair of the aiming shafts.

US Pat. No. 9,243,772

VEHICLE LAMP INCLUDING LIGHT EMITTING ELEMENT WITH TILTED MOUNTING FACE

KOITO MANUFACTURING CO., ...

1. A vehicle lamp comprising:
an element installation portion including a mounting face for a light emitting element;
at least one light emitting element which is mounted on the mounting face and which includes a rectangular shaped light emitting
face extending parallel to the mounting face; and

a reflector configured to reflect light of the light emitting element, wherein
the mounting face tilted with respect to a horizontal plane such that opposite ends of the mounting face in a direction along
the horizontal plane are at different distances from the horizontal plane, and

the at least one light emitting element is mounted on the mounting face such that, with respect to the horizontal plane where
two sides of the light emitting face are parallel to a lamp front-rear axis and the other two sides of the light emitting
face are perpendicular to the lamp front-rear axis, the light emitting face is positioned at a position rotated about an axis
passing through the light emitting face which is orthogonal to the light emitting face.

US Pat. No. 9,079,527

VEHICLE HEADLAMP

KOITO MANUFACTURING CO., ...

1. A vehicle headlamp comprising;
at least three lamp units, each of the at least three lamp units having a semiconductor light emitting device as a light source;
and

a controller configured to turn on at least one of the at least three lamp units to form a fog lamp light distribution pattern,
and to turn on the at least one of the at least three lamp units and one or more of the at least three lamp units other than
the at least one of the at least three lamp units to form a cornering lamp light distribution pattern.

US Pat. No. 9,302,611

VEHICLE LAMP CONTROL DEVICE

KOITO MANUFACTURING CO., ...

1. A vehicle lamp control device comprising:
a receiver configured to receive an output value of an inclination sensor, an output value of a vehicle speed sensor and a
signal indicating turn-on/off of a switch of a power supply configured to supply power to the control device,

wherein the inclination sensor is configured to derive a total angle including a road surface angle and a vehicle posture
angle, and the total angle is an inclination angle of a vehicle to a horizontal plane, the road surface angle is an inclination
angle of a road surface to the horizontal plane and the vehicle posture angle is an inclination angle of the vehicle to the
road surface;

a control unit configured to control an optical axis of a vehicle lamp; and
a storage unit configured to store a road surface angle reference value and a vehicle posture angle reference value in a non-volatile
manner,

wherein the control unit is configured to:
a) hold the road surface angle reference value and the vehicle posture angle reference value in a volatile manner,
b) generate an optical axis adjusting signal using the vehicle posture angle, which is obtained from the total angle and the
held road surface angle reference value and hold the obtained vehicle posture angle as a new reference value, in response
to variation in the total angle during the stop of the vehicle;

c) avoid generating or outputting the optical axis adjusting signal or output an optical axis holding signal, and hold the
road surface angle, which is obtained from the total angle and the held vehicle posture angle reference value, as a new reference
value, in response to variation in the total angle during travelling of the vehicle; and

d) in response to receiving the turn-off signal of the switch,
d-1) when the output value of the vehicle speed sensor received before the turn-off of the switch is a value indicating the
stop of the vehicle, write at least the road surface angle reference value of the held road surface angle reference value
and the held vehicle posture angle reference value in the storage unit, and

d-2) when the received output value of the vehicle speed sensor is a value indicating the travel of the vehicle or a value
indicating abnormality of the vehicle speed sensor or when the output value of the vehicle speed sensor is not received at
least within a predetermined time before receiving the turn-off signal, continue to execute the step (c) while delaying the
step (d-1).

US Pat. No. 9,188,303

AUTOMOTIVE HEADLAMP

Mabuchi Motor Co., Ltd., ...

1. An automotive headlamp comprising:
a light source;
a shade configured to be movable between a first position shielding a first volume of light emitted from the light source
and a second position shielding a second volume of light different from the first volume;

a motor configured to generate a driving force to move the shade from the first position to the second position;
a fixing part configured to fix the shade, which is moved from the first position to the second position; wherein the motor
has rotor poles, a motor shaft and a commutator, the commutator is fixed to the motor shaft, a rectification phase of the
motor is lag, and an electric current is applied to the motor when the shade is fixed at the second position.

US Pat. No. 9,096,169

DC-DC CONVERTER AND VEHICULAR LAMP

KOITO MANUFACTURING CO., ...

1. A vehicular lamp comprising:
a plurality of light source portions; and
a lighting circuit including a DC-DC converter configured to drive the plurality of light source portions, wherein:
the DC-DC converter includes a plurality of converter portions, each of which includes a switching circuit portion and a control
circuit portion, the switching circuit portion being configured to obtain an output voltage by stepping up or stepping down
an input voltage with a switching converter circuit including a switch element, a wound element, and a rectifier element,
and the control circuit portion being configured to control the output voltage by controlling the switch element of the switching
circuit portion;

the plurality of converter portions are arranged on a single circuit board such that the switching circuit portion of each
of the converter portions is not adjacent to the control circuit portion of each of a rest of the converter portions; and

in each of the converter portions, (i) the switching circuit portion is arranged at an end portion of the circuit board, and
(ii) the switching circuit portion is arranged outward of the control circuit portion in the circuit board.

US Pat. No. 9,242,594

VEHICULAR LAMP

Koito Manufacturing Co., ...

1. A vehicular lamp, comprising:
a light source; and
a light guide body disposed to cause light emitted from the light source to be incident thereto and then emitted toward a
front of the vehicular lamp,

wherein the light guide body includes a first rod shaped light guiding portion and a second rod shaped light guiding portion
disposed at positions spaced apart from each other, and a planar light guiding portion disposed to connect a circumferential
surface portion of the first rod shaped light guiding portion with that of the second rod shaped light guiding portion,

the light source includes a first light source disposed to cause light to be incident onto the first rod shaped light guiding
portion from an end portion surface of the first rod shaped light guiding portion and a second light source disposed to cause
light to be incident onto the second rod shaped light guiding portion from an end portion surface of the second rod shaped
light guiding portion,

a plurality of reflective elements are formed in a rear surface of the planar light guiding portion and a rear surface of
the circumferential surface of each of the first and second rod shaped light guiding portions, thereby the light being emitted
toward the front of the vehicular lamp by the plurality of reflective elements from the planar light guiding portion and the
first and second light guiding portions, and

each of the first light source and the second light source is configured to emit a different color light with each other.

US Pat. No. 9,273,844

VEHICULAR LAMP

KOITO MANUFACTURING CO., ...

1. A vehicular lamp comprising:
a projection lens;
a light source arranged to a rear of a rear side focal point of the projection lens;
a reflector that reflects light from the light source toward the projection lens;
a cut-off forming member arranged between the light source and the projection lens;
a first sub-reflector that is arranged in front of the reflector and reflects the light from the light source rearward; and
a second sub-reflector that is arranged to the rear of the rear side focal point and reflects reflected light from the first
sub-reflector toward and through the projection lens.

US Pat. No. 9,067,533

VEHICLE LAMP CONTROL DEVICE AND VEHICLE LAMP SYSTEM

KOITO MANUFACTURING CO., ...

1. A control device of a vehicle lamp, the device comprising:
a receiving section which receives an acceleration value detected by an acceleration sensor, the acceleration value usable
to derive a tilt angle of a vehicle with respect to a horizontal plane, wherein when the tilt angle of the vehicle with respect
to the horizontal plane is represented as a total angle, the total angle includes a road surface angle which is a tilt angle
of a road surface with respect to the horizontal plane and a vehicle posture angle which is a tilt angle of the vehicle with
respect to the road surface; and

a control section which controls an optical axis adjustment of the vehicle lamp,
wherein the control section derives a first provisional vehicle posture angle from the total angle based on a first calculation
method, and a second provisional vehicle posture angle based on a second calculation method, corrects one of the first provisional
vehicle posture angle and the second provisional vehicle posture angle so that a difference between the first provisional
vehicle posture angle and the second provisional vehicle posture angle, after correction, is smaller than before the correction,
sets the corrected provisional vehicle posture angle to the vehicle posture angle, and outputs a control signal for instructing
the optical axis adjustment of the vehicle lamp according to the vehicle posture angle, and

wherein the second calculation method calculates the second provisional vehicle posture angle independently of the first provisional
vehicle posture angle calculated by the first calculation method, and the first calculation method calculates the first provisional
vehicle posture angle independently of the second provisional vehicle posture angle calculated by the second calculation method.

US Pat. No. 9,404,631

LIGHT EMITTING APPARATUS AND AUTOMOTIVE LAMP

KOITO MANUFACTURING CO., ...

1. A light emitting apparatus comprising:
a mounting part that mounts a light emitting device thereon; and
a light condenser that condenses light emitted from the light emitting device, the light condenser including:
an incident part through which the light emitted from the light emitting device enters;
a reflector that reflects light entering from the incident part; and
an emission part that emits light reflected by the reflector,
wherein a phosphor layer, which converts a wavelength of the light emitted from the light emitting device and emits the wavelength-converted
light, is formed in the incident part,

wherein the light condenser is arranged such that the phosphor layer is located on a light emission surface of the light emitting
device,

wherein the light condenser includes a molded body made of transparent material having a first surface part, a second surface
part disposed counter to the first surface part, and a side surface part disposed in between the first surface part and the
second surface part,

wherein the first surface part functions as the incident part, the second surface part functions as the emission part, and
the reflector is formed such that a metallic film is formed on an outer surface of the side surface part,

wherein the phosphor layer is formed by embedding a part of plate-shaped phosphor in the first surface part,
wherein the mounting part is arranged such that a plurality of light emitting devices are able to be mounted side by side,
wherein the molded body made of transparent material is arranged for each of the plurality of light emitting devices,
wherein, in each molded body made of transparent material, an adjacent surface facing the adjacent molded body made of transparent
material is formed into flat surface, and

wherein, in each molded body made of transparent material, a metallic film is formed on the adjacent surface facing the adjacent
molded body made of transparent material as well as the outer surface of the side surface part.

US Pat. No. 9,226,349

SEMICONDUCTOR LIGHT SOURCE LIGHTING CIRCUIT

KOITO MANUFACTURING CO., ...

1. A semiconductor light source lighting circuit comprising:
a switching regulator that generates a drive current of a semiconductor light source using a switching element; and
a control circuit that controls ON/OFF of the switching element so that the drive current approximates to a target value,
wherein the control circuit comprises:
a comparator that compares the drive current and the target value;
an up/down counter that counts a digital value in a count direction determined by a comparison result of the comparator;
a digital-analog converter that converts the digital value counted by the up/down counter into an analog signal; and
a drive circuit that controls the ON/OFF of the switching element based on the analog signal which is obtained as a result
of the conversion by the digital-analog converter, and

wherein the up/down counter counts said digital value at a speed determined by an ON/OFF cycle of the switching element,
wherein the drive circuit controls the ON/OFF of the switching element based on a signal outputted from a first oscillator,
wherein the up/down counter performs a counting operation based on a signal outputted from a second oscillator different from
the first oscillator when the difference between said drive current and the target value is greater than a current threshold,
and

wherein, when the difference between the drive current and the target value is greater than the current threshold, the up/down
counter counts the digital value faster than a case when the difference between the drive current and the target value is
smaller than the current threshold.

US Pat. No. 9,120,418

VEHICLE LAMP WITH VIBRATOR

KOITO MANUFACTURING CO., ...

1. A vehicle lamp comprising:
a light source;
a front cover made of a transparent material to transmit the light emitted by the light source;
a lamp body forming a lamp housing together with the front cover; and
a vibrator directly contacted with the front cover to generate a vibration sound,
wherein the vibrator is supported by the lamp housing such that the vibrator contacts the front cover at a location where,
when the vehicle lamp is mounted on a vehicle, the vibrator is not visible from an outside of the vehicle lamp,

wherein the front cover comprises a flat extended portion, and the vibrator is provided on the extended portion, and
wherein the front cover, including the extended portion, is formed as a one-piece structure.

US Pat. No. 9,096,163

LIGHT SOURCE UNIT HAVING A METALLIC SUBSTRATE WITH A HEAT DISSIPATION PART, AND VEHICULAR LAMP HAVING THE LIGHT SOURCE UNIT

KOITO MANUFACTURING CO., ...

1. A light source unit comprising:
a housing;
a metallic substrate accommodated in the housing; and
a plurality of light-emitting devices mounted on the metallic substrate;
wherein the metallic substrate includes:
a mounting part on which the plurality of light-emitting devices are mounted; and
a heat dissipation part extending from an outer edge of the mounting part in a direction opposite to a light emitting direction
of the light-emitting devices, wherein heat from the light-emitting devices are dissipated from the heat dissipation part,
and

wherein the housing includes:
a bottom part on which the mounting part is held; and
a peripheral groove part extending in the direction opposite to the light emitting direction along an outer edge of the bottom
part, wherein the heat dissipation part is accommodated in the peripheral groove part.

US Pat. No. 9,329,374

PROJECTION LENS AND OPTICAL SURFACE DETERMINATION METHOD

KOITO MANUFACTURING CO., ...

1. An optical surface determination method for a projection lens that receives light entering through a rear face of the projection
lens, internally reflects the light twice, and then emits the light from a front face of the projection lens, the optical
surface determination method comprising:
setting an incoming wavefront of light that is emitted from a light source and enters the projection lens;
setting an outgoing wavefront of light that is emitted from the projection lens and forms a predetermined light distribution
pattern;

setting a shape of the front face of the projection lens;
setting a shape of an incidence region in the rear face of the projection lens, through which the incoming wavefront emitted
from the light source enters the projection lens;

calculating a first intermediate wavefront generated by an internal reflection by a first reflection region of the front face
of the projection lens, based on a shape of the first reflection region;

calculating a second intermediate wavefront before refracted by a refraction region of the front face of the projection lens,
based on a shape of the refraction region; and

determining, as an optical surface, a shape of a second reflection region in the rear face of the projection lens, which reflects
the first intermediate wavefront and outputs the second intermediate wavefront, based on the calculated first intermediate
wavefront and the calculated second intermediate wavefront.

US Pat. No. 9,238,431

CONTROL APPARATUS FOR VEHICLE LAMP AND VEHICLE LAMP SYSTEM

Koito Manufacturing Co., ...

1. A control apparatus for a vehicle lamp, the control apparatus comprising:
a receiver to receive an acceleration signal indicative of an acceleration detected by an acceleration sensor;
a memory; and
a controller to derive an inclination angle of a vehicle relative to a horizontal plane from the acceleration signal,
wherein, while the vehicle is stopped and if a change in the acceleration exceeds a threshold, the threshold corresponding
to a change in the acceleration due to a vibration of the vehicle, the controller outputs an adjustment signal indicative
of an instruction to adjust an optical axis of the vehicle lamp in accordance with a difference in the inclination angle before
and after the change in the acceleration,

wherein the inclination angle of the vehicle with respect to the horizontal plane includes a sum of a first angle and a second
angle, the first angle being an inclination angle of a road surface relative to the horizontal plane, and the second angle
being an inclination angle of the vehicle relative to the road surface,

wherein a reference value of the second angle is stored in the memory, and
wherein, when the change in the acceleration exceeds the threshold while the vehicle is stopped, the controller updates the
reference value of the second angle by using the difference in the inclination angle before and after the change as a difference
in the second angle to change the reference value of the second angle by an angle corresponding to the difference, and generates
the adjustment signal by using the updated reference value of the second angle.

US Pat. No. 9,406,657

SEMICONDUCTOR LIGHT-EMITTING DEVICE

KOITO MANUFACTURING CO., ...

1. A semiconductor light-emitting device comprising:
a substrate;
one or more semiconductor light-emitting elements provided on the substrate, and that emit light having a peak wavelength
in a 380 nm to 480 nm wavelength region; and

a molded member covering the semiconductor light-emitting element, and containing a phosphor that emits visible light by being
excited by the emitted light from the semiconductor light-emitting element,

wherein the molded member is formed so that index A=H/(s/n) satisfies 0.3?A?6, where H is the height [mm] of the molded member
from the substrate, s is the square root [mm] of the contact area between the substrate and the molded member, and n is the
number of the semiconductor light-emitting elements covered with the molded member,

wherein a plurality of the semiconductor light-emitting elements are disposed in a plurality of lines on the substrate,
wherein a plurality of the molded members are disposed, each of which respectively covers each of the plurality of lines,
and

wherein each of the plurality of the molded members respectively is formed in a column shape that extends in a direction along
the plurality of lines.

US Pat. No. 9,353,925

VEHICULAR LAMP WITH OPTICAL MEMBER HAVING THERMAL STRESS ABSORPTION FEATURES

KOITO MANUFACTURING CO., ...

1. An optical member formed of resin, comprising
a fixation portion, via which the optical member is fixed to a supporting member on which a light emitting element is supported;
a reflective surface having a reflective region configured to reflect light from the light emitting element; and
a thermal deformation absorbing portion configured to absorb thermal deformation of the optical member,
wherein the thermal deformation absorbing portion is provided between the reflective region and the fixation portion,
wherein the thermal deformation absorbing portion is a gap portion formed between the reflective surface and the fixation
portion,

wherein the optical member further comprises:
a reflector body including the reflective surface, and
an arm part formed to extend from the reflector body,
wherein the fixation portion and the thermal deformation absorbing portion are provided in the arm part,
wherein the reflector body is thermally deformed toward the fixation portion for the supporting member by narrowing clearance
of the gap portion when the reflector body receives heat of the light emitting element from the supporting member and therefore
is thermally deformed, and

wherein the gap portion is formed along a boundary of the reflector body and the arm part from one end of the arm part.

US Pat. No. 9,373,687

LIGHT EMITTING CERAMIC SUBSTRATE INCLUDING GROUP-III NITRIDE

KOITO MANUFACTURING CO., ...

1. A method for fabricating a semiconductor device, the method comprising:
forming a buffer layer containing a group-III-V compound, on a light emitting ceramic substrate formed of Y3Al5O12 having a plurality of surface orientations; and

forming a group-III nitride semiconductor layer on the buffer layer, wherein
the forming the buffer layer includes:
a first step of feeding a first gas containing Al as a group-III element to the substrate in pulses and forming a nucleation
layer made of Al in at least a part on the substrate;

a second step of stopping a supply of the first gas and feeding a second gas containing a group-V element to the substrate;
and

a third step of resuming the supply of the first gas while continuing to feed the second gas.

US Pat. No. 9,278,646

DRIVING SUPPORT APPARATUS FOR VEHICLE

Koito Manufacturing Co., ...

1. A driving support apparatus comprising:
a projecting unit configured to project a predetermined support pattern on a road surface ahead of an own vehicle or a front
window of the own vehicle; and

a driving support control unit configured to control a projection state of the support pattern,
wherein the driving support control unit includes: a road information detecting unit configured to detect information of a
road on which the own vehicle is travelling; a travelling state detecting unit configured to detect a traveling state of the
own vehicle, the traveling state including at least one of a vehicle speed and a steering direction; a proper state determining
unit configured to determine a proper vehicle speed and proper steering of the own vehicle based on the information of the
road and the traveling state; and a projection control unit configured to project the support pattern as a moving image based
on determination by the proper state determining unit.

US Pat. No. 9,188,297

AUTOMOTIVE HEADLAMP FORMING MULTIPLE LIGHT DISTRIBUTION PATTERNS WITH A SINGLE LAMP

KOITO MANUFACTURING CO., ...

1. An automotive headlamp comprising:
a reflector composed of a first reflector portion and a second reflector portion;
a light source composed of a first light source and a second light source that are located at or near the focal point of the
reflector; and

a light-shielding part installed between the first light source and the second light source, wherein the light-shielding part
is arranged to prevent the light emitted from the first light source from being incident on the second reflector portion and
not to prevent the light emitted from the second light source from being incident on the first and second reflector portions,

wherein the first light source and the second light source are arranged such that: the light emitted from the first light
source is reflected by the first reflector portion to form a first light distribution pattern; a first portion of the light
emitted from the second light source forms a first partial light distribution pattern by being reflected by the first reflector
portion and not by the second reflector portion; a second portion of the light emitted from the second light source forms
a second partial light distribution pattern which is different from the first partial light distribution pattern by being
reflected by the second reflector portion and not by the first reflector portion, and a second light distribution pattern,
which is different from the first light distribution pattern, is formed by combining the first and second partial light distribution
patterns, and

wherein the first light source and the second light source can be turned on individually, and the first light distribution
pattern is formed while the first light source is being turned on and the second light distribution pattern is formed while
the second light source is being turned on.

US Pat. No. 9,074,744

VEHICULAR LAMP

KOITO MANUFACTURING CO., ...

1. A vehicular lamp comprising:
a transparent planar light emitting body including a first light emitting surface and a second light emitting surface which
face each other, the transparent planar light emitting body configured to emit light from the first light emitting surface
and the second light emitting surface;

a first reflector configured to reflect light from the first light emitting surface to a front; and
a second reflector configured to reflect light from the second light emitting surface to the front,
wherein the transparent planar light emitting body has a plurality of areas of the first light emitting surface and the second
light emitting surface which are illuminated selectively so as to emit light therefrom.

US Pat. No. 9,453,629

LIGHT DISTRIBUTION CONTROL SYSTEM

Koito Manufacturing Co., ...

1. A system configured to control a light distribution of a lighting device mounted in a vehicle, the system comprising:
a light source;
a projection lens through which at least a part of light emitted from the light source passes;
a rotary shade disposed at a rear side of the projection lens to block a part of the light emitted from the light source and
having a rotary axis;

a first driving mechanism configured to change a direction of an optical axis of the projection lens; and
a second driving mechanism configured to rotate the rotary shade on the rotary axis,
wherein the rotary shade includes: a first edge projected to a front area of the projection lens, as a periphery of a first
light distribution pattern, when the second driving mechanism rotates the rotary shade to a first angle position; a second
edge projected to the front area of the projection lens, as a first periphery of a second light distribution pattern, when
the second driving mechanism rotates the rotary shade to a second angle position, the second light distribution pattern having
an illumination area larger than an illumination area of the first light distribution pattern; and a twist end surface extending
around the rotary axis to intersect the first edge at a first position with respect to a direction of the rotary axis, and
to intersect the second edge at a second position with respect to a direction of the rotary axis,

the twist end surface includes an edge projected to the front area of the projection lens, as a second periphery of the second
light distribution pattern, and the system further comprises: a first information acquisition unit configured to acquire first
information on a rudder angle of the vehicle; a second information acquisition unit configured to acquire second information
on a front area of the vehicle; a first control unit configured to control the first driving mechanism to determine the direction
of the optical axis based on the first information; and a second control unit configured to control the second driving mechanism
to determine a position of the second periphery based on the second information.

US Pat. No. 9,453,631

WELDING STRUCTURE AND WELDING APPARATUS

Koito Manufacturing Co., ...

1. A welding structure comprising:
a first member; and
a light transmissive second member including a surface having an indented area,
wherein the first and second members are welded to each other at closely contacted surfaces thereof by projecting a spot light
from the second member side in a state where the second member is in close contact with the first member, and a curvature
radius of the indented area existing on the surface of the second member, to which the spot light is projected, is at least
two times a width of a welding portion.

US Pat. No. 9,423,095

VEHICULAR LAMP

KOITO MANUFACTURING CO., ...

1. A vehicular lamp comprising:
a light source;
a cooling fan configured to cool the light source;
a light source power supply module configured to drive the light source for emission of light; and
a control module configured to execute an abnormal rotation detection of the cooling fan and to control the light source power
supply module so that the quantity of light emitted from the light source is reduced in response to a detection of abnormal
rotation,

wherein when detecting an abnormal rotation of the cooling fan, the control module controls the light source power supply
module so that the quantity of light emitted from the light source module is reduced in accordance with a rotation speed of
the cooling fan,

the control module changes a determination threshold which is used to detect an abnormal rotation of the cooling fan in accordance
with information on a driving current which is supplied to the light source by the light source power supply module, and

when the driving current is low, the determination threshold is set to a lower value.

US Pat. No. 9,279,563

LAMP

Koito Manufacturing Co., ...

1. A lamp comprising:
a plurality of light emitting units each including a semiconductor light emitting element and a reflector having a reflecting
surface that reflects light from a corresponding semiconductor light emitting element,

wherein the reflecting surface of the reflector is formed to have a parabolic shape in a cross-section perpendicular to an
optical axis of the semiconductor light emitting element and to have a condensing-diffusing shape in a cross-section parallel
to a plane including the optical axis of the semiconductor light emitting element and a symmetry axis of the parabolic shape
so as to condense and diffuse reflected light beams in a forward direction.

US Pat. No. 9,255,680

TRANSPORTATION DEVICE LAMP FIXTURE

KOITO MANUFACTURING CO., ...

1. A transportation device lamp fixture comprising:
a semiconductor light-emitting device;
a circuit board to which the semiconductor light-emitting device is mounted;
a lamp body; and
a front cover that covers an opening of the lamp body,
wherein the semiconductor light-emitting device and the circuit board are housed inside of a lamp chamber formed by the lamp
body and the front cover; and

the circuit board is directly attached to an inside surface of an uppermost wall of the front cover that delimits the extent
of the lamp chamber or an inside surface of an uppermost wall of the lamp body that delimits the extent of the lamp chamber.

US Pat. No. 9,365,152

VEHICLE LAMP CONTROL APPARATUS

KOITO MANUFACTURING CO., ...

1. A vehicle lamp control apparatus comprising:
a receiver configured to receive an output value of an inclination sensor and a signal output from at least one of a foot
brake sensor, a parking brake sensor and a shift position sensor, wherein a total angle which is an inclination angle of a
vehicle with respect to a horizontal plane is derivable from the output value of the inclination sensor, and the total angle
includes a road surface angle which is an inclination angle of a road surface with respect to the horizontal plane and a vehicle
posture angle which is an inclination angle of the vehicle with respect to the road surface; and

a controller configured to adjust an optical axis angle of a vehicle lamp using the output value of the inclination sensor,
wherein the controller is configured to output an adjustment signal to adjust the optical axis angle of the vehicle lamp in
response to change in the total amount when the vehicle is static, except for non-static load change caused by changeover
in at least one of a foot brake, a parking brake and a shift position, and

wherein the controller is configured to avoid outputting the adjustment signal or output a maintaining signal to maintain
the optical axis angle in response to the non-static load change when the vehicle is static and change in the total angle
when the vehicle is running.

US Pat. No. 9,285,094

VEHICLE LAMP UNIT

KOITO MANUFACTURING CO., ...

1. A lamp unit which is to be installed in a vehicle, the lamp unit comprising:
a light source;
a projector lens having an optical axis, wherein at least a portion of light emitted from the light source passes through
the projector lens;

a rotary shade that is disposed behind the projector lens so as to block a portion of the light emitted from the light source
and that has a rotation axis; and

a drive mechanism that rotates the rotary shade about the rotation axis,
wherein the rotary shade comprises:
a first end edge for forming a cutoff line of a first light distribution pattern projected in front of the projector lens,
when the drive mechanism rotates the rotary shade to a first angle position;

a second end edge for forming a first cutoff line of a second light distribution pattern projected in front of the projector
lens, when the drive mechanism rotates the rotary shade to a second angle position different from the first angle position,
wherein an illumination region of the second light distribution pattern is larger than that of the first light distribution
pattern;

a twisted end edge that extends around the rotation axis so as to intersect with the first end edge and the second end edge,
wherein a position of a first intersect point of the twisted end edge and the first end edge is different from that of a second
intersect point of the twisted end edge and the second end edge in a direction parallel to the rotation axis, the twisted
end edge for forming a second cutoff line of the second light distribution pattern, wherein the second cutoff line is shifted
in accordance with the rotation of the rotary shade,

wherein a first inclination angle is formed between the rotation axis and a first imaginary plane that is orthogonal to an
optical axis of the projector lens.

US Pat. No. 9,302,612

VEHICULAR LAMP SYSTEM

Koito Manufacturing Co., ...

1. A vehicular lamp system comprising:
a lamp unit;
a vehicle storage unit configured to store first identification information;
a communication unit configured to communicate with an external storage unit which stores second identification information
corresponding to the first identification information, and function information associated with the second identification
information and related to a user's selected function of the lamp unit; and

a control unit configured to control an operation of the lamp unit,
wherein the communication unit acquires the function information associated with the second identification information corresponding
to the first identification information from the external storage unit, and

the control unit operates the lamp unit based on the function information to execute a specific function, and
wherein the external storage unit includes an information terminal which is owned by a user independently of a vehicle, and
a data server provided outside the vehicle,

the information terminal is configured to store the specific second identification information,
the data server is configured to store a plurality of second identification information, and a plurality of function information
associated with the plurality of second identification information, respectively,

the communication unit acquires the second identification information from the information terminal, and
the communication unit transmits the specific second identification information corresponding to the first identification
information to the data server to acquire the function information associated with the specific second identification information
from the data server.

US Pat. No. 9,429,304

LIGHT EMITTING MODULE AND VEHICLE LAMP

KOITO MANUFACTURING CO., ...

1. A light emitting module comprising:
a board comprising a mounting portion, the mounting portion being configured such that a plurality of light emitting devices,
each of the light emitting devices having an anode side and a cathode side, are mounted on the mounting portion in an array
form;

a first interconnecting section mounted on a common surface of the board and comprising a plurality of first interconnections,
the first interconnections being configured such that one end of each of the first interconnections is connected to one of
the anode side and the cathode side of an associated one of the light emitting devices;

a second interconnecting section mounted on the common surface of the board and comprising a plurality of second interconnections,
the second interconnections being configured such that one end of each of the second interconnections is connected to the
other of the anode side and the cathode side of an associated one of the light emitting devices; and

a power supply portion that is a single terminal mounted on the common surface of the board and provided along one side of
the common surface of the board and configured to receive an external power,

wherein the second interconnecting section further comprises at least one, but less than the number of the second interconnections,
collectively interconnecting portion to which another end of each of the second interconnections is connected,

wherein the first interconnecting section and the second interconnecting section are configured such that another end of each
of the first interconnections and an end portion of the collectively interconnecting portion are connected to the power supply
portion, and such that the light emitting devices are divided into a plurality of groups that are independently controllable
to be turned on and off, and

wherein one end of the second interconnecting section is connected to the power supply portion through the first interconnecting
section and the light emitting devices, while the other end of the second interconnecting section is connected directly to
the power supply portion.

US Pat. No. 9,134,003

AUTOMOTIVE HEADLAMP, HEAT RADIATING MECHANISM, LIGHT-EMITTING APPARATUS AND LIGHT SOURCE FIXING MEMBER

KOITO MANUFACTURING CO., ...

1. An automotive headlamp comprising:
a light-emitting module configured such that a light source and a control circuit unit for controlling the lighting of the
light source are structured integrally with each other; and

a reflector having a reflecting surface for reflecting light emitted from the light source and collecting the reflected light,
wherein the control circuit unit is disposed in a position anterior to the light source in a lamp unit.

US Pat. No. 9,333,905

LIGHT EMITTING MODULE

Koito Manufacturing Co., ...

1. A light emitting module comprising:
a plurality of light emitting elements;
a fluorescent substance resin layer containing a fluorescent substance which is excited by light emitted from the plurality
of light emitting elements to emit visible light;

a reflective surface configured to reflect light emitted from the plurality of light emitting elements and the fluorescent
substance resin layer;

a light guiding body layer provided between the reflective surface and the fluorescent substance resin layer, and configured
to guide light emitted from the plurality of light emitting elements or the fluorescent substance; and

a scattering processing unit provided on at least one of the reflective surface and an interface between the fluorescent substance
resin layer and the light guiding body layer, the scattering processing unit being configured to scatter a part of the light
emitted from the plurality of light emitting elements and stepped in at least one of a hemispherical shape, an uneven shape,
a trapezoidal shape, and a cone shape,

wherein the fluorescent substance of the fluorescent substance resin layer includes a yellow fluorescent substance and a blue
fluorescent substance.

US Pat. No. 9,327,638

VEHICLE HEADLAMP

KOITO MANUFACTURING CO., ...

1. A vehicle headlamp comprising:
a lamp body including a lamp housing having an opening and a cover covering the opening in the lamp housing; and
a lamp unit disposed in the lamp body and including,
a light source unit having an LED light source configured to emit light, and a heat sink,
a structural unit having a reflector that reflects light from the LED light source, a projection lens configured to project
the light emitted from the LED light source and reflected by the reflector, a lens holder configured to hold the projection
lens, and a light quantity control mechanism that varies an amount of light passing therethrough,

an irradiating direction changing mechanism, including a drive source, configured to change an irradiating direction of the
light emitted from the LED light source and projected by the projection lens,

a bracket, including a frame-shaped base portion, configured to being operated by a driving force of the irradiating direction
changing mechanism and to change an orientation of an optical axis of the projection lens, and

a support base that supports the bracket,
wherein the structural unit and the light source unit are each directly mounted on the bracket,
wherein the light quantity control mechanism comprises a movable shade that rotates between a first position and a second
position, and

wherein a supported portion of the bracket is supported by the support base via a spherical bearing portion as a fulcrum upon
operation of the drive source.

US Pat. No. 9,291,323

VEHICLE LAMP HAVING A NOVEL REFLECTIVE DISTRIBUTION PATTERN

KOITO MANUFACTURING CO., ...

1. A vehicle lamp comprising:
a 2D image forming device configured to form a brightness image using light emitted from a light source;
an optical projection system configured to project the brightness image forward; and
a light blocking member disposed on a path of light emitted from the light source through the 2D image forming device and
onward toward the optical projection system, and configured to block at least a portion of the light,

wherein the 2D image forming device and light blocking member are separate members.

US Pat. No. 9,221,389

VEHICLE LAMP

KOITO MANUFACTURING CO., ...

1. A vehicle lamp comprising:
a light source that lights up when a current flows therethrough;
a solenoid-type actuator that controls a light distribution of light that is illuminated from the light source; and
a lamp control device that controls lighting-up of the light source and driving of the actuator, wherein
the lamp control device includes:
a current control device that outputs a constant current, and
an actuator control device that connects the actuator to the light source in series when the actuator is activated by a predetermined
signal so that the constant current, which is output from the current control device, flows through the light source and the
actuator.

US Pat. No. 9,062,844

VEHICULAR LAMP

KOITO MANUFACTURING CO., ...

1. A vehicular lamp comprising:
a light source mounting portion on which a light source is mounted;
a light guide for allowing light from the light source to enter from an end face of the light guide and emitting the light
forward from an emitting surface thereof while guiding the light in an interior thereof, the emitting surface extending along
a direction in which the light guide extends, wherein the light guide is formed with:

steps that reflect light traveling through the light guide toward the emitting surface; and
a light-emitting surface formed at a position different from a position of the emitting surface, the light-emitting surface
emitting the light traveling through the light guide to an outside of the light guide; and

a first reflecting portion for reflecting at least a part of the light, which is emitted from the light-emitting surface of
the light guide, toward the light guide.

US Pat. No. 9,349,926

LIGHT EMITTING MODULE

KOITO MANUFACTURING CO., ...

1. A light emitting module comprising:
a semiconductor light emitting element which has a light emitting surface from which light is emitted;
a circuit board on which the semiconductor light emitting element is mounted;
a luminescent material layer which is disposed so as to cover the emitting surface of the semiconductor light emitting element
and which changes a wavelength of at least part of light emitted from the semiconductor light emitting element; and

a light shielding wall which is provided on the circuit board and which surrounds the semiconductor light emitting element
and the luminescent material layer from the circumference thereof, and

wherein the luminescent material layer is bonded to the semiconductor light emitting element and the light shielding wall
with a bonding resin having a light transmittivity,

wherein a distal end portion of the light shielding wall is caused to project further forwards than the luminescent material
layer, and

wherein a transparent resin having a light transmittivity is applied so as to cover at least an exposed surface of the distal
end portion of the light shielding wall, wherein the transparent resin is applied only to an outer circumferential portion
of an opening portion which is formed by the distal end portion of the light shielding wall which is caused to project further
forward than the luminescent material layer;

wherein the transparent resin is made of the same material as that of the bonding resin.

US Pat. No. 9,212,800

VEHICULAR LAMP

KOITO MANUFACTURING CO., ...

1. A vehicular lamp comprising:
a movable reflector that has a reflecting surface and changes a direction of reflected light from the reflecting surface,
according to an operating position thereof;

a first light-emitting unit that emits light toward the reflecting surface;
a second light-emitting unit that emits light toward the reflecting surface, from a position different from that of the first
light-emitting unit; and

a light control member that collects and projects the reflected light;
wherein the first light-emitting unit is a light-emitting unit for high beams, and the second light-emitting unit is a light-emitting
unit for drawing an image;

the second light-emitting unit includes a plurality of semiconductor light-emitting devices, and an image is drawn by the
second light-emitting unit by controlling turning on and off of the respective semiconductor light emitting devices in a specified
timing.

US Pat. No. 9,096,171

VEHICLE LAMP CONTROLLER, VEHICLE LAMP SYSTEM, AND VEHICLE LAMP CONTROL METHOD

KOITO MANUFACTURING CO., ...

1. A vehicle lamp controller comprising:
a receiver configured to receive information on a detected vector from an output of an acceleration sensor;
a memory in which a plurality of reference vectors are stored, wherein the plurality of reference vectors corresponds to different
pitch angles of a vehicle; and wherein at least one of the plurality of reference vectors is an orientation in three-dimensional
space which corresponds to a pitch angle of the vehicle inclined with respect to a horizontal reference state of the vehicle,
the at least one of the plurality of reference vectors including numerical values of respective axis components of a gravity
acceleration vector in three axis directions;

a control unit configured to obtain a determined pitch angle of the vehicle from the detected vector and one of the reference
vectors, and to generate a control signal for adjusting an optical axis of a vehicle lamp based on the determined pitch angle
of the vehicle; and

a transmitter configured to transmit the control signal to an optical axis adjustment portion of the vehicle lamp;
wherein the control unit is configured to
calculate a difference angle between the detected vector and each of the reference vectors,
select the one of the reference vectors having a smallest angle of the difference angles,
derive, as the determined pitch angle of the vehicle, a sum of the smallest angle and a pitch angle of the vehicle corresponding
to the selected reference vector.

US Pat. No. 9,328,892

VEHICULAR LAMP

KOITO MANUFACTURING CO., ...

1. A vehicular lamp comprising:
an optical member having a reflective surface that reflects light from a light source;
a heat radiating member configured to radiate heat generated by the light source; and
a blowing mechanism configured to blow air at the reflective surface, and
a fan configured to blow air to the heat radiating member,
wherein the blowing mechanism is configured to lead air blown from the fan to the reflective surface of the optical member;
the heat radiating member has a mounting surface to which the light source is mounted;
the fan is provided on a fan side of the heat radiating member, the fan side of the heat radiating member being an opposite
side of the heat radiating member from the mounting surface; and

the blowing mechanism includes a vent that extends through the heat radiating member from the fan side of the heat radiating
member to a mounting surface side of the heat radiating member.

US Pat. No. 9,366,408

VEHICLE LAMP HAVING PLANT FIBER

LION IDEMITSU COMPOSITES ...

1. A vehicle lamp including a lamp body which is opened at a front thereof, and a front cover which is attached to the lamp
body to close a front opening portion of the lamp body,
wherein
the lamp body is formed from a resin composition containing a thermoplastic resin, a plant fiber, and an acid scavenger,
the acid scavenger is calcium oxide, and
the content of the acid scavenger in the lamp body is 0.1 to 5 mass %.

US Pat. No. 9,206,954

LIGHT SOURCE UNIT AND VEHICULAR LAMP

KOITO MANUFACTURING CO., ...

1. A light source unit comprising:
a semiconductor light emitting element that is a light source;
a plurality of conductive members formed into a predetermined three-dimensional shape by press working a conductive metal
material, wherein at least one of the plurality of conductive members comprises:

an element mounting portion to which the semiconductor light emitting element is mounted and joined by welding,
a heat dissipating portion that dissipates heat generated when the semiconductor light emitting element emits light, and
a planar connecting portion that is plane-shaped to which a connector that supplies power to the semiconductor light emitting
element is connected; and

a housing formed of an insulating material,
wherein the at least one of the plurality of conductive members is formed from a planar portion that is positioned on the
same plane as the element mounting portion, and the connecting portion folded ninety degrees with respect to the planar portion,

wherein the housing holds the plurality of conductive members in a spaced apart state,
wherein the planar connecting portion projects rearward from the element mounting portion, and
wherein the connector is connected to a power supply circuit.

US Pat. No. 9,359,539

VEHICLE LAMP

KOITO MANUFACTURING CO., ...

1. A vehicle lamp comprising:
a lamp body having a front opening; and
a front cover which is attached to block the front opening,
wherein the lamp body is formed using a resin composition containing a base resin and plant fibre, and
wherein in a bonding part between the lamp body and the front cover, the bonding is performed using a moisture curing adhesive.

US Pat. No. 9,061,468

WELDING METHOD AND WELDING APPARATUS

KOITO MANUFACTURING CO., ...

1. A welding method comprising the steps of:
contacting a light transmissive second member to a first member, and
radiating, from a second member side, light, controlled for deflection by a light deflecting device, to contacting surfaces
of said first and second members thus welding said first and second members together; wherein

during said step of radiating the light, an incidence angle of the light when entering an outer surface of said second member
is made smaller by a reflectance reducing means which is disposed on a light receiving surface side of said second member,
and

the reflectance reducing means is an incident angle adjusting step that reduces an incident angle of the light radiated to
the contacting surfaces.

US Pat. No. 9,303,837

VEHICULAR LAMP HAVING A TRANSLUCENT MEMBER HAVING A CENTER REGION THAT SERVERS AS A LENS-LIKE DIRECT LIGHT CONTROL PORTION

KOITO MANUFACTURING CO., ...

1. A vehicular lamp comprising:
a light-emitting element facing a forward direction of the lamp, and
a translucent member that covers the light-emitting element from a front side,
wherein the translucent member has a center region located forward of the light-emitting element that serves as a lens-like
direct light control portion,

wherein the translucent member has a peripheral region surrounding the center region that serves as a reflecting light control
portion in which light emitted from the light-emitting element and incident on the translucent member is internally reflected
forward by a rear surface of the translucent member and emitted forward from a front surface of the translucent member,

wherein the direct light control portion is configured such that light emitted from the direct light control portion has a
light intensity distribution in which light intensity is highest in a direction at a first required angle from the forward
direction of the lamp, and

wherein the reflecting light control portion is configured such that light emitted from the reflecting light control portion
has a light intensity distribution in which light intensity is highest in a direction at a second required angle that is smaller
than the first required angle.

US Pat. No. 9,310,042

VEHICLE HEADLAMP

KOITO MANUFACTURING CO., ...

1. A vehicle headlamp comprising:
a lamp outer case including
a lamp housing formed with an opening on at least one side thereof, and
a cover that covers the opening of the lamp housing;
a holding plate that is pivotable in at least one of an up-down direction and a right-left direction;
a lamp unit that is attached to the holding plate and includes a light source; and
an optical axis adjustment mechanism that is disposed below the lamp unit and adjusts an optical axis direction of the lamp
unit; wherein

the holding plate is pivotable in one of the up-down direction and the right-left direction,
the optical axis adjustment mechanism includes a support plate that supports the holding plate so as to be pivotable in the
one of the up-down direction and the right-left direction and that is pivotable in the other of the up-down direction and
the right-left direction with respect to the lamp housing,

when the holding plate is pivoted in the one of the up-down direction and the right-left direction, the optical axis direction
is adjusted in the up-down direction or the right-left direction by the optical axis adjustment mechanism,

when the support plate and the holding plate are integrally pivoted in the other of the up-down direction and the right-left
direction, the optical axis direction is adjusted in the up-down direction or the right-left direction by the optical axis
adjustment mechanism; and

the light source is disposed above any part of the support plate.

US Pat. No. 9,297,508

VEHICULAR LAMP

KOITO MANUFACTURING CO., ...

1. A vehicular lamp comprising:
a light source; and
a lens disposed at a front side of the light source and configured to form a predetermined lamp light distribution pattern
by controlling a deflection of light emitted from the light source,

wherein a front surface of the lens comprises a plurality of front surface areas defined by ridge lines,
wherein a rear surface of the lens comprises a plurality of rear surface areas defined by trough lines, and wherein a number
of the plurality of rear surface areas equals to a number of the plurality of front surface areas,

wherein the front surface comprises:
a first plurality of front surface areas defined by a first set of ridge lines and provided at a center portion of the front
surface; and

a second plurality of front surface areas defined by a second set of ridge lines and provided at a radial outer portion with
respect to the first plurality of front surface areas, and

wherein the first plurality of front surface areas and the second plurality of front surface areas are concentric.

US Pat. No. 9,435,503

AUTOMOTIVE LAMP

KOITO MANUFACTURING CO., ...

1. An automotive lamp comprising:
a first light source that emits a red laser light;
a second light source that emits a green laser light;
a third light source that emits a blue laser light;
a light condensing unit that collects at least the red laser light, the green laser light and the blue laser light so as to
generate a white laser light;

a light distribution unit that distributes the white laser light so as to form a predetermined light distribution pattern;
a monitoring unit that monitors the emission of laser light from the first light source, the second light source, and the
third light source; and

an abnormality determining unit that determines whether or not any abnormality occurs in the emission of laser light at the
first light source, the second light source, and the third light source, based on a result of monitoring by the monitoring
unit.

US Pat. No. 9,227,554

VEHICULAR LAMP

Koito Manufacturing Co., ...

1. A vehicular lamp comprising:
a lamp body having an opening formed at a front side of the lamp;
a cover configured to cover the opening;
an irradiation unit mounted inside a lamp chamber formed by the lamp body and the cover, and configured to irradiate light
emitted from a light source to the front side of the lamp;

a rotation mechanism provided with a shaft portion installed on one of the irradiation unit and the lamp body and longitudinally
extending in a horizontal direction perpendicular to the light irradiated from the light source to the front side of the lamp,
and a bearing portion installed on the other of the irradiation unit and the lamp body and configured to support the shaft
portion, the rotation mechanism being configured to enable the irradiation unit to rotate with respect to a horizontal axis
of the shaft portion; and

a positioning mechanism configured to position the irradiation unit at a predetermined position within a range of possible
rotation about the horizontal axis,

wherein one of the shaft portion and the bearing portion of the rotation mechanism is installed on a bracket mounted on the
lamp body.

US Pat. No. 10,111,291

LIGHTING CIRCUIT AND VEHICULAR LAMP

Koito Manufacturing Co., ...

1. A lighting circuit that operates a light source, the lighting circuit comprising:a drive circuit configured to supply a drive current to the light source; and
a dummy load circuit connected to a control line into which a lighting control signal, which instructs the light source to be turned on and off, is input, and configured to sink a dummy load current which decreases as a temperature increases.

US Pat. No. 9,967,981

LIGHT SOURCE UNIT

Koito Manufacturing Co., ...

1. A light source unit comprising:a base unit including, on a front surface thereof, a first circuit pattern that is formed by irradiating laser light to a resin molded article; and
a light emitting element mounted on the base unit and electrically connected to the first circuit pattern,
wherein the base unit includes:
a mounting surface portion oriented in a predetermined direction, the light emitting element being mounted on the mounting surface portion,
a plurality of sidewall surface portions positioned below the mounting surface portion to be supported and connected to the mounting surface portion through a plurality of sides that forms the mounting surface portion in a plane intersection state, respectively, and
the plurality of sidewall surface portions are slanted away from the mounting surface portion from the plurality of sides of the mounting surface portion, respectively, thereby forming an inclined surface that intersects with the mounting surface portion at an obtuse angle, respectively.

US Pat. No. 9,541,703

LAMP

KABUSHIKI KAISHA TOYOTA J...

1. A lamp comprising:
a transparent light guide having an entrance surface for receiving light from a light source, an exit surface for emitting
the light entering from the entrance surface, and a light-guiding part for guiding the light entering from the entrance surface
to the exit surface; and

a pair of subject members for attaching the light guide thereto, the subject members having a front side and a rear side,
wherein the front side of the subject members are visible from outside the lamp, wherein the rear side of the subject members
are covered by an opaque color part;

wherein the opaque color part further covers a portion of the light-guiding part of the light guide and is in contact with
the portion of the light-guiding part;

wherein the light source is positioned within an interior of the lamp at a position opposing the entrance surface of the light
guide and posterior to the rear side of the subject members such that the light source is covered by the color part and thereby
not visible from outside the lamp;

wherein the light guide is arranged such that the exit surface of the light guide is adjacent to the front side of each subject
member such that the exit surface is exposed relative to the front side of the subject members and thereby visible from outside
the lamp, wherein the entrance surface of the light guide is arranged within the interior of the lamp posterior to the rear
side of the subject members such that the entrance surface is covered by the color part and thereby not visible from outside
the lamp such that the light guide is operable to guide light from a position not visible from outside the lamp to a position
visible from outside the lamp; and

wherein the subject members are transparent.

US Pat. No. 9,435,505

TILT SENSOR HOUSING CASE AND VEHICLE LAMP SYSTEM

KOITO MANUFACTURING CO., ...

1. A tilt sensor housing case comprising:
a main body part comprising a housing space for a substrate on which a tilt sensor is mounted and an opening portion for inserting
the substrate in the housing space; and

a lid part configured to close the opening portion,
wherein the lid part has a first engaging portion extending along an outer surface of the main body part in a state where
the lid part is mounted to the main body part,

the main body part has a second engaging portion on the outer surface corresponding to the first engaging portion,
the lid part is mounted to the main body part by a snap-fit coupling using the elasticity of the lid part and locked to the
main body part by the engagement of the first engaging portion and the second engaging portion, and

the main body part has a first protrusion and a second protrusion that are positioned to sandwich the first engaging portion
between them in a state where the lid part is mounted to the main body part, and each of the first and second protrusions
protrudes at least up to the same height as the first engaging portion in a direction in which the outer surface and the first
engaging portion are overlapped.

US Pat. No. 9,476,561

VEHICLE LAMP INCLUDING IMAGE FORMING DEVICE AND METHOD FOR CONTROLLING THE SAME

KOITO MANUFACTURING CO., ...

1. A vehicle lamp comprising:
a projection lens;
a two-dimensional image forming device including a projection surface positioned near a rear focal point of the projection
lens; and

a light source configured to irradiate the two-dimensional image forming device with light, wherein:
the projection surface comprising a plurality of optical elements arranged into a matrix on a single substrate, the plurality
of optical elements being driven independently from one another,

in the projection surface, a first illumination pattern and a second illumination pattern formed simultaneously and individually
on a first projection area and a second projection area, respectively, the first projection area and the second projection
area arranged along a first direction, and

the first and the second illumination patterns are projected to the front of the lamp by the projection lens so as to be re-arranged
along a second direction different from the first direction, and

wherein the first and the second illumination patterns are projected so as to partially overlap each other by the projection
lens to form the single light distribution pattern.

US Pat. No. 9,169,984

VEHICULAR LAMP WITH PILLAR SHAPED LIGHT GUIDE AND LENS WITH THICK WALLED PROJECTING PORTION

KOITO MANUFACTURING CO., ...

1. A vehicular lamp comprising:
a light source;
a pillar-shaped light guide comprising a plurality of light controlling portions formed on a side surface thereof; and
a lens disposed in front of the light guide,
wherein light emitted from the light source enters the light guide from one end surface of the light guide,
wherein the light guide guides the light inside the light guide,
wherein the light guide emits the guided light forward of the vehicular lamp via the plurality of light controlling portions,
wherein the lens has a thick-walled projecting portion,
wherein the projecting portion is formed to have a rectangular vertical cross-section, and
wherein the projecting portion guides the light emitted from the light guide and emits the light forward of the vehicular
lamp.

US Pat. No. 9,045,080

OBSTACLE DETECTING DEVICE

KOITO MANUFACTURING CO., ...

1. An obstacle detecting device comprising:
a light source including both a first light emitting element for emitting visible light and a second light emitting element
for emitting infrared light; and

a rotating reflector configured to be rotated in one direction around a rotational shaft while reflecting the visible light
and the infrared light emitted from the light source, wherein

the rotating reflector is configured, by its rotating movement: to emit the visible light from the first light emitting element
as an irradiation beam such that a first light distribution pattern is formed by scanning with the irradiation beam; and to
emit the infrared light from the second light emitting element as an irradiation beam such that a second light distribution
pattern is formed by scanning with the irradiation beam, and wherein

the rotational shaft is provided to be approximately parallel to a scanning plane formed by continuously connecting the trajectories
of the light of the irradiation beam that scans in the horizontal direction by the rotation of the rotating reflector.

US Pat. No. 9,429,291

OPTICAL UNIT

KOITO MANUFACTURING CO., ...

1. An optical unit including:
a lens through which light emitted from a light source enters from behind and the light emits frontward as an irradiation
beam; and

a light source,
wherein the lens moves periodically and a front area of the lens is scanned with the irradiation beam so as to form a predetermined
irradiated region,

wherein the light source is configured such that luminous intensity is varied in a partial phase range of a cycle of a lens
movement, and

wherein the lens is configured such that the lens rotates about a rotation axis connected to a drive part and such that a
direction of light, which has emitted from the light source and is refracted when the light passes through the lens, varies
periodically.

US Pat. No. 9,573,514

ACTUATOR AND VEHICLE LIGHTING DEVICE

KOITO MANUFACTURING CO., ...

1. An actuator comprising:
a case having an opening;
a shaft accommodated inside the case and having a tip protruding towards an outside of the case through the opening;
a motor accommodated inside the case and configured to displace the shaft in an axis direction thereof; and
a circuit board accommodated inside the case and having a mounting surface on which at least a part of a circuit configured
to drive the motor is mounted,

wherein an end edge of the circuit board is formed with a notch,
wherein a protrusion is formed inside the case, and
wherein the protrusion is fitted into the notch to independently support the circuit board inside the case.

US Pat. No. 9,316,373

VEHICULAR LAMP

KOITO MANUFACTURING CO., ...

1. A vehicular lamp comprising:
a first light source within a lamp chamber defined by a lamp body and a front cover;
a columnar light guide disposed so as to slant from front to back; and
a reflector disposed adjacent to at least a rear side of the columnar light guide,
wherein the columnar light guide comprises:
a first incident portion disposed on an end side thereof near the first light source,
a stepped portion disposed on a rear surface side thereof in an axial direction and wholly reflects a portion of guided light,
and

a radiating portion disposed on a front surface side thereof in the axial direction that radiates the wholly reflected light
forward,

wherein the columnar light guide is disposed so as to guide light from the first light source that is incident through the
first incident portion from front to back within the light guide, and

wherein the stepped portion is a plurality of generally triangular prisms formed continuous in an extension direction,
wherein the stepped portion has, in a cross section that follows an extension axis of the columnar light guide and is parallel
to a lamp optical axis, a long first projection surface that extends in the extension direction and a short second projection
surface that forms an apex angle with the first projection surface,

wherein a portion of light from the first light source that is guided from front to back in the columnar light guide is radiated
from the second projection surface and reflected by the reflector, and then incident to another first projection surface and
wholly reflected by the second projection surface adjacent to the first projection surface, and subsequently radiated forward
from the radiating portion,

wherein the columnar light guide comprises a second incident portion disposed on another end side thereof,
the vehicular lamp further comprising a second light source provided near the second incident portion,
wherein light from the second light source is guided from back to front within the light guide through the second incident
portion, and

wherein a portion of the guided light from the second incident portion is wholly reflected by the first projection surface
and radiated forward from the radiating portion,

wherein the first projection surface is constituted from two flat surfaces, and
wherein among the two flat surfaces in the cross section that follows the extension axis of the columnar light guide, where
L2 is a side length of the forward flat surface and L1 is a side length of the rearward flat surface, a ratio L2/L1 of the side lengths is set so as to increase from the first incident portion toward the second incident portion.

US Pat. No. 10,165,652

LIGHTING CIRCUIT AND VEHICLE LAMP EMPLOYING SAME

KOITO MANUFACTURING CO., ...

1. A lighting circuit comprising:a converter which has an output inductor, supplies a drive current to a light source via the output inductor, and is feedback-controlled so that the drive current comes close to a target current; and
a protection circuit which suspends a switching operation of the converter for a suspension time upon detecting a recovery from an open-circuit state to a normal state at an output terminal of the converter,
wherein the protection circuit judges that the recovery from the open-circuit state to the normal state has occurred when an output voltage of the converter has dropped rapidly.

US Pat. No. 9,723,686

LIGHT EMISSION DEVICE AND LAMP UNIT

KOITO MANUFACTURING CO., ...

1. A light emission device comprising:
an organic EL panel in which an organic EL light emission portion is formed on a substrate, the organic EL panel being flexible;
and

a molding resin that shapes the organic EL panel so that the organic EL panel is in a curved state,
wherein the organic EL panel is molded together with the molding resin into the curved state.

US Pat. No. 9,458,978

VEHICLE LAMP

KOITO MANUFACTURING CO., ...

1. A vehicle lamp comprising:
a light source; and
a toroidal lens which extends into an arc shape along a horizontal plane which extends along an optical axis of the light
source so as to surround the light source from a front side thereof, the toroidal lens comprising:

a rear surface through which light from the light source enters the toroidal lens; and
a front surface through which the light from the light source exits the toroidal lens,
wherein in a vertical plan view on the horizontal plane, the front surface of the toroidal lens comprises:
a recess provided at a center portion of the toroidal lens and recessed toward the light source; and
surrounding portions provided at lateral ends of the toroidal lens, each of surrounding portions provided at each end of the
recess;

wherein a radius of curvature of a front surface of the recess along the horizontal plane is equal to a radius of curvature
of each surrounding portion along the horizontal plane.

US Pat. No. 9,371,231

APATITE CRYSTAL

KOITO MANUFACTURING CO., ...

1. An apatite crystal, wherein the apatite crystal is a single crystal expressed by a general formula (M2)5(PO4)3X where M2 indicates at least one type of element selected from the group consisting of bivalent alkaline-earth metals and Eu, and X
indicates at least one type of element or molecule selected from the group consisting of halogen elements, and wherein the
single crystal is of a tubular shape.

US Pat. No. 9,473,854

ELECTRODYNAMIC EXCITER AND VEHICLE LAMP EMPLOYING THE SAME

KOITO MANUFACTURING CO., ...

1. An electrodynamic exciter adapted to be mounted to a vibration panel comprising:
a coil;
a magnetic circuit unit having a magnetic gap for receiving a lower end of the coil;
a coil support member arranged on an upper side of the magnetic circuit unit to fixedly support the coil; and
a suspension vertically displaceably supporting the magnetic circuit unit with respect to the coil support member,
wherein the exciter is mounted to the vibration panel in an upper surface of the coil support member thereof,
the suspension is provided with a plurality of flexible arms connecting the magnetic circuit unit and the coil support member
at a plurality of positions,

the plurality of flexible arms are formed extending in the same circumferential direction, each extending from a base end
thereof on the side of the magnetic circuit unit toward a distal end thereof on the side of the coil support member in a planar
view,

a plurality of arm insertion slots, each having almost the same vertical width as each of the flexible arms, are formed at
a plurality of circumferential positions of the coil support member,

the distal end of each of the flexible arms is inserted into each of the arm insertion slots in the same circumferential direction
in which the flexible arms are extended, and

a separation prevention structure for preventing the distal end of each of the flexible arms from being separated from each
of the arm insertion slots is provided between at least one of the flexible arms and the arm insertion slot into which the
flexible arm is inserted.

US Pat. No. 9,428,102

ACTUATOR

KOITO MANUFACTURING CO., ...

1. An actuator configured to adjust a direction of radiation of light emitted from a light source of a lamp unit disposed
in a lamp case including a lamp housing having an opening at least at one side and a cover that blocks the opening of the
lamp housing, comprising:
a case body having an internal space serving as an installation space;
a drive motor disposed in the installation space; and
a driven body having a driving force transmitting portion to which driving force generated by the drive motor is transmitted,
and an output shaft that is coupled to the lamp unit and that outputs the driving force transmitted to the driving force transmitting
portion to the lamp unit, the driven body being supported by the case body so as to be movable in a front-rear direction of
the lamp unit,

the driving force transmitting portion and the output shaft being integral with each other,
wherein the case body has a guide portion that guides the driven body in the front-rear direction, the guide portion being
integral with the case body.

US Pat. No. 9,423,087

VEHICULAR LAMP

KOITO MANUFACTURING CO., ...

1. A vehicular lamp comprising:
a light source attachment flat surface that faces downward, and that comprises having a plurality of light source attachment
portions;

a plurality of light sources attached to the plurality of light source attachment portions; and
a plurality of parabolic reflectors,
wherein each of the plurality of parabolic reflectors reflects light from a corresponding one of the light sources in a predetermined
optical axis direction, and

wherein the light source attachment flat surface is tilted with respect to an optical axis of the plurality of reflectors
so as to be higher on a front side of the lamp than on a rear side of the lamp.

US Pat. No. 9,198,247

VEHICLE LAMP, DRIVING DEVICE THEREOF, AND CONTROL METHOD THEREOF

KOITO MANUFACTURING CO., ...

1. A driving device that is used together with a light source and configures a vehicle lamp, the device comprising:
a DC/DC converter that receives an input voltage and supplies a drive voltage to the light source; and
a controller that controls the DC/DC converter,
wherein the DC/DC converter includes:
an input terminal, an output terminal, and a ground line;
a switching transistor and an input inductor that are provided in series between the input terminal and the ground line; and
an output inductor, and
wherein the controller includes:
a current controller that compares a first coil current which flows in the output inductor with a first upper threshold value
and a first lower threshold value;

a current limiter that compares a second coil current which flows in the input inductor with a second upper threshold value
and a second lower threshold value; and

a duty controller that, (i) in a cycle where the first coil current exceeds the first upper threshold value before the second
coil current exceeds the second upper threshold value, (i-a) turns OFF the switching transistor triggered by the fact that
the first coil current exceeds the first upper threshold value, and (i-b) turns ON the switching transistor triggered by the
fact that the first coil current comes below the first lower threshold value, and (ii) in a cycle where the second coil current
exceeds the second upper threshold value before the first coil current exceeds the first upper threshold value, (ii-a) turns
OFF the switching transistor triggered by the fact that the second coil current exceeds the second upper threshold value,
and (ii-b) turns ON the switching transistor triggered by the fact that the second coil current comes below the second lower
threshold value.

US Pat. No. 9,482,401

VEHICULAR ILLUMINATION LAMP

KOITO MANUFACTURING CO., ...

1. A vehicular illumination lamp comprising:
a projection lens configured to output forward, as light that is parallel with an axial line extending in a lamp front-rear
direction, light emitted from a prescribed point on the axial line; and

a light source disposed in the rear of the projection lens, wherein
a front surface of the projection lens is a convex free surface and a perimeter of the front surface extends approximately
along a plane that is perpendicular to the axial line; and

a rear surface of the projection lens is a curved surface which is formed so that light emitted from the prescribed point
and incident on the projection lens is output from the projection lens as light that is parallel with the axial line,

wherein the perimeter of the front surface of the projection lens forms a non-circular shape having a plurality of straight
portions and one or more front corner portions located between the straight portions, and

a perimeter of the rear surface is formed having portions corresponding to the respective straight portions which are deviated
in a direction away from the perimeter of the front surface, and rear corner portions corresponding to the front corner portions
which are deviated in a direction toward the perimeter of the front surface.

US Pat. No. 9,649,976

VEHICLE LAMP

Koito Manufacturing Co., ...

1. A vehicle lamp comprising:
a first light emission unit;
a second light emission unit including an organic EL element as a light source; and
a controller including a light reduction unit and configured to control the first light emission unit and the second light
emission unit such that the second light emission unit is turned ON at a time when a tail lamp is turned ON, and both the
first light emission unit and the second light emission unit are turned ON at a time when a stop lamp is turned ON,

wherein
the light reduction unit is configured to control the first light emission unit and the second light emission unit such that
light intensity of the second light emission unit at the time when the stop lamp is turned ON becomes lower than that at the
time when the tail lamp is turned ON.

US Pat. No. 9,587,796

VEHICLE LAMP

KOITO MANUFACTURING CO., ...

1. A vehicle lamp comprising:
a light source; and
an optical member that reflects light from the light source,
wherein the light source comprises:
a base extending in a front-rear direction of the vehicle lamp, and
a plurality of surface light-emitting devices, each of which is provided on side surfaces of the base so as to continuously
surround the base in a circumferential direction of the base,

wherein the base comprises a light-emitting portion covered by the surface light-emitting devices and a non-light-emitting
portion not covered by the surface light-emitting devices, and

wherein each of the surface light-emitting devices is an organic electro-luminescence device,
wherein the light-emitting portion and the non-light-emitting portion are structured to project a pattern on the optical member,
and

wherein the surface light-emitting devices are arranged side by side in a longitudinal direction of the base in which the
base extends, with a gap provided between adjacent surface light-emitting devices.

US Pat. No. 9,441,803

VEHICULAR HEADLAMP

Koito Manufacturing Co., ...

1. A direct irradiation type vehicular headlamp, comprising:
a lamp unit outer case constituted by an outer cover and a lamp housing;
a circuit substrate mounted with a light emitting diode of a yellow color serving as a light source and having a connection
terminal for supplying power to the light emitting diode;

a placement member configured to place the circuit substrate;
a projection lens configured to receive light emitted from a main optical axis of the light emitting diode directly without
using a reflector and project the received light forwardly; and

a cover member including a colored part and an attached part, and being inwardly extended to surround the light emitting diode
from a front surface of the placement member such that the cover member blocks a portion of the light diffused to a peripheral
side of the projection lens but does not block the main optical axis of the light emitting diode, and absorbs the portion
of the light diffused to the peripheral side of the projection lens,

wherein a rear surface of the colored part is substantially the same position as a front surface of the light emitting diode
in a forward-backward direction,

an inner peripheral surface of the colored part is formed as an incident surface on which the portion of the light diffused
to a peripheral side of the projection lens is incident,

one end of the attached part is coupled to an outer peripheral surface of the colored part and the other end is attached to
the surface of the placement member,

a predetermined color other than the yellow color of the light emitting diode is given to the incident surface of the colored
part of the cover member,

the cover member is disposed such that at least an outer periphery of the circuit substrate is blocked by the cover member
when viewed from a front side of the vehicular headlamp, and

the attached part includes a base portion formed in a box shape opened toward upwardly, a placement groove that is opened
inwardly and rearwardly and extended in a circumferential direction thereof is formed on a rear side surface of the base portion,
and the outer periphery of the circuit substrate is inserted into the placement groove.

US Pat. No. 9,395,073

COOLING UNIT AND ILLUMINATING APPARATUS

Koito Manufacturing Co., ...

1. A cooling unit comprising:
a blowing device having a frame configured to rotatably support a blower including plurality of blades; and
a heat sink having a central recess portion configured to accommodate the plurality of blades of the blower within the central
recess portion and a plurality of heat radiation plates provided to surround the central recess portion,

wherein the frame of the blowing device is pivotably supported by an engaging element of the heat sink provided outside the
central recess portion such that the plurality of blades of the blower of the blowing device are pivotably displaceable between
a first position at which the plurality of blades of the blower are disposed outside the central recess portion and a second
position at which the plurality of blades of the blower are accommodated within the central recess portion.

US Pat. No. 9,358,918

VEHICLE HEADLAMP

KOITO MANUFACTURING CO., ...

1. A vehicle headlamp comprising:
a first lamp unit having a first irradiation range, the first lamp unit being configured such that the first irradiation range
is adjustable in a horizontal direction above a horizontal cutoff line of a low beam light distribution pattern; and

a second lamp unit having a second irradiation range, the second lamp unit being configured such that the second irradiation
range is adjustable in a vertical direction,

wherein a resolution of the second lamp unit with respect to the second irradiation range in the vertical direction is higher
than a resolution of the first lamp unit with respect to the first irradiation range in the horizontal direction above the
horizontal cutoff line.

US Pat. No. 9,341,336

VEHICLE HEADLAMP

KOITO MANUFACTURING CO., ...

1. A vehicle headlamp comprising:
a first light source disposed on a first optical axis that extends in a front-to-rear direction of a vehicle;
a first lens that projects light emitted from the first light source to a front of the vehicle;
a second lens having a rear focal point on a second optical axis that is parallel to the first optical axis and disposed adjacent
to the first lens;

a second light source disposed on the second optical axis rearwards of the first light source;
a reflector that reflects light emitted from the second light source towards the rear focal point of the second lens; and
a sub-reflector disposed such that the sub-reflector does not interfere with an optical path which extends from the reflector
to the second lens and that causes part of light emitted from the first light source to be incident on the second lens.

US Pat. No. 10,165,653

VEHICLE REAR LAMP

KOITO MANUFACTURING CO., ...

1. A vehicle rear lamp which is disposed at a rear of a vehicle, the vehicle rear lamp comprising:a sub-lamp which is detectable by a following vehicle when turned on; and
a main lamp,
wherein the vehicle rear lamp has a normal-driving lighting mode and a self-driving lighting mode, and
wherein the sub-lamp is configured to be turned on and off concurrently with the main lamp in the self-driving lighting mode, and the sub-lamp is configured to be not turned on with the main lamp in the normal-driving lighting mode.

US Pat. No. 9,482,402

AUTOMOTIVE LAMP

KOITO MANUFACTURING CO., ...

1. An automotive lamp comprising:
a light source mounting part configured to mount a light source thereon; and
a projection lens having an incident surface, which receives light emitted from the light source, and an emission surface
that emits the light toward a front area of the lamp,

wherein a fine asperity structure is formed on at least one of the incident surface and the emission surface of the projection
lens, and

wherein the fine asperity structure includes a plurality of randomly distributed adjacent recesses or raised portions formed
such that a pitch between the adjacent recesses or between the adjacent raised portions is less than or equal to a visible
light wavelength so as to increase transmitted light emitted from the emission surface by reducing reflected light reflected
from the incident surface and/or the emission surface.

US Pat. No. 9,470,387

VEHICULAR HEADLAMP

Koito Manufacturing Co., ...

1. A vehicular headlamp comprising:
a lamp casing configured by a lamp housing having an opening at least at one side thereof and a cover that covers the opening
of the lamp housing; and

a lamp unit disposed within the casing,
wherein the lamp unit includes:
a light source unit which has a light source;
a movable shade configured to be rotatable and change a shielding quantity of light emitted from the light source;
a solenoid having an output shaft moving in a left and right direction and configured to rotate the movable shade;
a rotation shaft configured to function as a rotation fulcrum of the movable shade, an axial direction of the rotation shaft
corresponding to the left and right direction; and

an orthogonal transformation mechanism configured to convert a movement action of the output shaft to a rotation action of
the movable shade,

at least a portion of the rotation shaft for the movable shade is positioned at an upper side of the solenoid,
wherein the orthogonal transformation mechanism includes:
a rotation link which is rotated according to a movement of the output shaft;
a first connecting pin configured to connect the output shaft and the rotation link; and
a second connecting pin configured to connect the movable shade and the rotation link,
wherein the first connecting pin is inserted into the output shaft and the rotation link so that the output shaft and the
rotation link are connected with each other, and

the second connecting pin is inserted into the movable shade and the rotation link so that the movable shade and the rotation
link are connected with each other.

US Pat. No. 9,907,151

LIGHTING CIRCUIT AND VEHICLE LAMP HAVING THE SAME

KOITO MANUFACTURING CO., ...

1. A lighting circuit for a light source, the lighting circuit comprising:
a drive circuit that receives power having a first voltage from a source and supplies an output power having a second voltage
to the light source while controlling the output power based on a lamp current flowing into the light source;

an overcurrent protection circuit that is inserted between an output of the drive circuit and the light source and that restricts
the lamp current flowing into the light source so that the lamp current does not exceed an overcurrent threshold value,

wherein the overcurrent protection circuit comprises
a transistor,
an inductor,
a rectifier,
a current sensor that generates a current detection signal according to the lamp current, and
an overcurrent protection controller that controls ON/OFF of the transistor based on the current detection signal and the
overcurrent threshold value, and

wherein the transistor, the inductor and the rectifier are disposed in a T-shape; and
an abnormality detector that optically monitors the light source and that asserts an abnormality detection signal when an
intensity of the light source exceeds a permitted level in a second luminance mode in which the light source is lit at an
intensity that is lower than an intensity of a first luminance mode,

wherein the transistor is switched OFF when the abnormality detection signal is asserted, and
wherein the permitted level of the intensity of the light source changes based on a mode signal transmitted to the abnormality
detector from a control unit.

US Pat. No. 9,644,810

LAMP UNIT

KOITO MANUFACTURING CO., ...

1. A lamp unit comprising:
a first light source;
a second light source which is illuminated when the first light source is turned off; and
a projection lens comprising:
a first entering surface which is associated with a first focal point, and
a second entering surface that is inclined with respect to the first entering surface, and that is associated with a second
focal point,

wherein light emitted from the first light source is incident on the first entering surface and passes through the projection
lens,

wherein the second light source is disposed between the first light source and the projection lens in a position through which
light emitted from the first light source to reach the first entering surface does not pass, and

wherein light emitted from the second light source is incident on the second entering surface and passes through the projection
lens.

US Pat. No. 9,593,819

VEHICLE LAMP WITH SUNLIGHT RESTRICTING MEMBER

KOITO MANUFACTURING CO., ...

5. A vehicle lamp comprising:
a light emitting element;
a lens disposed on a front side of the light emitting element, wherein light from the light emitting element is deflected
by the lens to form a predetermined light distribution pattern; and

a sunlight restricting member that is disposed between the light emitting element and the lens, the sunlight restricting member
configured (i) to allow the direct light from the light emitting element to be incident on the lens and (ii) to restrict sunlight
from reaching, through the lens, at least one of the light emitting element and a light source support member that supports
the light emitting element,

wherein the predetermined light distribution pattern includes a light distribution pattern having a cut-off line on an upper
end portion thereof, and

wherein the sunlight restricting member is formed with a reflection surface configured to reflect a portion of the direct
light from the light emitting element upward so as to emit the reflected light, through the lens, toward an upper side of
the cut-off line.

US Pat. No. 9,528,675

AUTOMOTIVE LAMP

KOITO MANUFACTURING CO., ...

1. An automotive lamp comprising:
a first lamp unit that has a first projection lens;
a second lamp unit that has a second projection lens and that lines up with the first lamp unit in a substantially horizontal
direction and is arranged such that the second projection lens is located further to the back of the lamp than the first projection
lens; and

a reflex reflector that is provided in a region between the first projection lens and the second projection lens on a side
surface of the first lamp unit on the side of the second lamp unit and that reflects light that enters from the outside of
the lamp.

US Pat. No. 9,528,676

VEHICULAR LAMP

Koito Manufacturing Co., ...

1. A lamp mounted in a vehicle, comprising:
a light source,
a projection lens through which at least some of light emitted from the light source passes, and
an optical axis adjustment mechanism configured to adjust a reference position of an optical axis of the projection lens,
wherein the optical axis adjustment mechanism includes
an actuator having an electrically driven output shaft which pivots the optical axis in a second direction intersecting with
a first direction about a pivot axis extending in the first direction,

a slider disposed to be slidable along the pivot axis, and
an aiming screw configured to slide the slider according to rotation of the aiming screw so as to translate the optical axis
in the first direction, and

wherein the pivot axis on which the actuator acts is used in common as a sliding movement axis on which the aiming screw acts.

US Pat. No. 9,974,128

LIGHT SOURCE LIGHTING CIRCUIT AND TURN SIGNAL LAMP

KOITO MANUFACTURING CO., ...

1. A light source lighting circuit comprising:a first lighting circuit having a first light emission driving circuit configured to receive current from an electric power supply line and to supply drive current to a first light source, and
a second lighting circuit having a second light emission driving circuit configured to receive current from the electric power supply line and to supply drive current to a second light source,
wherein the first lighting circuit is configured to generate a first state signal corresponding to a state of the drive current flowing to the first light source and to output a second notification signal corresponding to the first state signal to the second lighting circuit,
wherein the second lighting circuit is configured to generate a second state signal corresponding to a state of the drive current flowing to the second light source and to output a first notification signal corresponding to the second state signal to the first lighting circuit,
wherein when the first state signal indicates an abnormality or when the first notification signal indicates an abnormality, the first lighting circuit stops operation thereof, and
wherein when the second state signal indicates an abnormality or when the second notification signal indicates an abnormality, the second lighting circuit stops operation thereof.

US Pat. No. 9,862,301

VEHICULAR REAR PANEL

Koito Manufacturing Co., ...

1. A vehicular backdoor comprising:
a light incident unit formed with an incident surface configured to refract light from a light source provided externally
from the vehicular backdoor in a peripheral end of an opening of a rear vehicular body part to face a rear side of a vehicle;

a light guiding unit configured to reflect the light incident via the light incident unit thereby guiding the light along
an extending direction of the vehicular backdoor; and

a light emitting unit configured to reflect the light guided by the light guiding unit thereby emitting the light toward the
rear side of the vehicle,

wherein the vehicular backdoor is made of a resin material, configured to be opened/closed, and integrally formed with the
light incident unit, the light guiding unit and light emitting unit each made of the resin material.

US Pat. No. 9,637,048

ILLUMINATION CONTROL SYSTEM

KOITO MANUFACTURING CO., ...

1. An illumination control system for controlling illumination by a lamp mounted on a vehicle, comprising:
a light source;
a scanning control unit for changing periodically positions of areas which are illuminated by light emitted from the light
source; and

an illumination control unit for controlling at least one of the light source and the scanning control unit so that in the
event that a predetermined illuminance is obtained by illuminating a certain area with light of a first light quantity, the
area is illuminated with a second quantity of light which is larger than the first quantity in a first period, and in a second
period which follows the first period the area is illuminated with light of a third light quantity which is smaller than the
first light quantity, wherein

the durations of the first period and the second period are of such a time that it appears to human occupants of the vehicle
that the area is illuminated with a quantity of light that is at least equal to the quantity of light of the first light quantity
during both the first period and the second period.

US Pat. No. 9,506,620

VEHICLE LIGHTING DEVICE

KOITO MANUFACTURING CO., ...

1. A lighting device configured to be mounted on a vehicle, the lighting device comprising:
a housing forming a lamp chamber, the housing comprising a wall having an opening therethrough;
a light source which is disposed in the lamp chamber;
a heat sink, wherein the light source is fixed to the heat sink; and
a fixation portion, the housing comprising the fixation portion,
wherein
the heat sink is fixed to the housing via the fixation portion,
a first portion of the heat sink is provided inside the housing and faces an inner surface of the wall, the first portion
being substantially parallel to the inner surface of the wall,

a second portion of the heat sink is exposed to an outside of the wall through the opening,
the fixation portion is provided on the outside of the wall to face the opening,
the housing comprises an arm extending from the wall,
the fixation portion extends from the arm, and
the fixation portion extending substantially parallel to the inner surface of the wall.

US Pat. No. 9,494,289

ACTUATOR AND VEHICLE HEADLAMP

KOITO MANUFACTURING CO., ...

1. An actuator comprising:
a coupling member comprising an output shaft to be coupled to a lamp unit and a first driven portion, the coupling member
being rotatable in a first direction about a shaft center of the output shaft;

a driven member comprising a second driven portion arranged on a first side of a rotation center aligned with the shaft center
and a follower portion arranged on a second side of the rotation center opposite to the first side, the driven member being
rotatable relative to the coupling member about the rotation center;

an acting portion engaged with the follower portion;
a first driving unit engaged with the first driven portion to rotate the coupling member relative to the driven member about
the shaft center; and

a second driving unit engaged with the second driven portion to rotate the driven member relative to the coupling member,
wherein, when the second driving unit rotates the driven member, the acting portion engaged with the follower portion causes
the rotation center to linearly move in a second direction and the coupling member is moved together with the driven member
in the second direction.

US Pat. No. 9,347,638

VEHICULAR LAMP

KOITO MANUFACTURING CO., ...

1. A vehicular lamp comprising:
a lamp body having an opening portion;
an outer cover that closes the opening portion and that, together with the lamp body, forms a lamp chamber between the outer
cover and the lamp body;

a light emission portion disposed within the lamp chamber;
a vapor deposition sheet that is disposed within the lamp chamber and that covers the lamp body with at least a portion of
the light emission portion exposed; and

an engaging portion that at least one of the outer cover and the lamp body has and that is adapted to engage with the vapor
deposition sheet and hold the vapor deposition sheet in a curved shape that substantially conforms to the outer cover or the
lamp body, wherein

the vapor deposition sheet includes an engaged portion that engages with the engaging portion;
the at least one of the outer cover and the lamp body has a curved shape, and
the vapor deposition sheet is a flexible sheet that is held in a curved shape that substantially conforms to the curved shape
of the at least one of the outer cover and the lamp body.

US Pat. No. 9,656,596

VEHICLE LAMP SYSTEM

Koito Manufacturing Co., ...

1. A vehicle lamp system, comprising:
a lamp unit that combines light beams from a plurality of light-emitting elements to illuminate with a predetermined beam;
a control unit that controls a change in luminance of the plurality of light-emitting elements in accordance with at least
one of an instruction from a vehicle and information indicating a driving condition; and

a storage unit that stores information indicating a priority of an event that causes the luminance of the plurality of light-emitting
elements to be changed,

wherein, in a case in which a second event occurs while the luminance of the plurality of light-emitting elements is being
gradually changed to reach first luminance in a first period corresponding to a first event, the control unit: (i) gradually
changes the luminance of the plurality of light-emitting elements to reach second luminance in a second period corresponding
to the second event if priority of the second event is higher than priority of the first event; and (ii) gradually changes
the luminance of the plurality of light-emitting elements to reach the second luminance irrespective of the second period
if the priority of the second event is lower than the priority of the first event.

US Pat. No. 9,531,157

LIGHTING CIRCUIT AND LAMP SYSTEM

KOITO MANUFACTURING CO., ...

1. A lighting circuit for turning on or off a semiconductor light source in accordance with a turning-on/off instruction signal
from a processor, the lighting circuit comprising:
a pulse input determining circuit that:
receives, from the processor, the turning-on/off instruction signal which is in pulse form in commanding turning-on and which
is at a constant level in commanding turning-off,

determines as to whether or not the turning-on/off instruction signal is in a turn-on state in which the turning-on/off instruction
signal is in pulse form, and

generates a determination signal which is asserted if the turning-on/off instruction signal is in pulse form; and
a drive circuit that:
supplies the semiconductor light source with a drive current if the determination signal is asserted, and
does not supply the semiconductor light source with the drive current if the determination signal is negated.

US Pat. No. 9,387,793

TRANSLATABLE VEHICLE LAMP

Koito Manufacturing Co., ...

1. A vehicle lamp comprising:
a lamp unit provided with a light source; and
a driving mechanism configured to translate the lamp unit,
wherein the driving mechanism includes a plurality of holders configured to hold a plurality of lamp units, respectively,
a rail configured to slidably support the respective holders, a flexible member extending along the rail, and a first actuator
configured to drive the respective holders through the flexible member.

US Pat. No. 9,340,147

VEHICLE LAMP

KOITO MANUFACTURING CO., ...

1. A vehicle lamp comprising:
a light emitting element disposed to be directed to a front side of the lamp; and
a light transmissive member disposed closer to the front side of the lamp than the light emitting element, the light transmissive
member comprising a front surface formed into a flat plane or a paraboloidal plane having a concavely curved surface portion
in a center thereof and a rear surface having a light entering area where light from the light emitting element is caused
to enter and an annular area situated on an outer circumferential side of the light entering area, the annular area having
a plurality of curved surfaces and having a reflecting film formed thereon,

wherein the light emitting element and the light transmissive member are configured and arranged so that light which is emitted
from the light emitting element and enters the light transmissive member is internally reflected on the front surface of the
light transmissive member and is then internally reflected again on the rear surface of the light transmissive member for
emission from the front surface of the light transmissive member to thereby form a first light distribution pattern having
a cut-off line at an upper end portion thereof, and

wherein the light transmissive member has a lens portion provided on one of the front surface or the rear surface of the light
transmissive member and configured to cause part of the light which is emitted from the light emitting element and enters
the light transmissive member to be emitted towards the front side of the lamp as direct emitted light that is upwardly oriented
so as to form a second light distribution pattern in a position that is spaced upwardly away from the cut-off line.

US Pat. No. 9,648,679

VEHICLE LAMP AND LIGHTING CIRCUIT THEREOF

KOITO MANUFACTURING CO., ...

1. A lighting circuit for using together with a semiconductor light source and making up a vehicle lamp, comprising:
a switching converter which supplies power to the semiconductor light source; and
a converter controller which controls the switching converter, wherein the converter controller comprises:
a current detection circuit configured to detect a current which is supplied from the switching converter to the semiconductor
light source;

a hysteresis comparator configured to compare a detected current value with an upper threshold voltage and lower threshold
voltage to generate a control pulse according to the result of the comparison;

a driver configured to switch a switching element of the switching converter according to the control pulse; and
a threshold voltage generating circuit configured to receive a variable control voltage which indicates a target current amount
to generate an upper threshold voltage and a lower threshold voltage according to the control voltage received.

US Pat. No. 9,627,362

ILLUMINATION DEVICE

KOITO MANUFACTURING CO., ...

1. An illumination device comprising:
a light-emitting device having (i) a plurality of light-emitting elements that emit ultraviolet ray or short-wavelength visible
light having a peak wavelength in a wavelength region of 380 to 420 nm, (ii) a substrate on which the plurality of light-emitting
elements are mounted, wherein all of the light-emitting elements on the substrate are arranged in a single row, (iii) a first
phosphor that is excited by the ultraviolet ray or short-wavelength visible light and emits visible light having a peak wavelength
in a wavelength region of 560 to 600 nm, (iv) a second phosphor that is excited by the ultraviolet ray or short-wavelength
visible light and emits visible light in complementary color relationship with the visible light emitted by the first phosphor,
and (v) a light-transmitting member that covers the plurality of light-emitting elements and contains the first phosphor and
the second phosphor dispersed therein, so as to obtain white color by mixing the light from each of the first and second phosphors;
and

a diffusion member that has a diffusivity of 10% or more and diffuses at least a part of the light emitted from the light
emitting device, said diffusion member having a plate shape and including (i) an incident surface which opposes the light-emitting
surface of the light emitting device and on which light emitting from the light emitting device is incident, and (ii) a light-exiting
surface from which light transmitted through the diffusion member exits and which is opposite to the incident surface,

wherein a volume concentration of the whole phosphors contained in the light-transmitting member is 0.01 vol % or more and
10 vol % or less,

wherein the light-transmitting member (i) has a shape having a thickness in a direction perpendicular to a light-exiting surface
of the light-emitting elements of 0.4 mm or more and 20 mm or less and (ii) integrally seals the upper surface of the substrate
on which the plurality of light-emitting elements are mounted,

wherein a relationship of Ia<0.5×Imax is satisfied, where Imax is the maximum intensity of the excitation spectrum of the
first phosphor, and Ia is the intensity of the excitation spectrum of the first phosphor at the peak wavelength of the light
emission spectrum of the second phosphor,

wherein the light-emitting elements are disposed so that an interval thereof to adjacent light-emitting elements is within
a range of 0.4 mm to 20 mm, and

wherein the diffusion member is disposed such that a distance thereof to the light-transmitting member is at least 3 mm.

US Pat. No. 9,598,000

VEHICLE LAMP SYSTEM

KOITO MANUFACTURING CO., ...

1. A vehicle lamp system comprising:
a camera configured to take an image of a region in front of a vehicle to generate image information;
a controller configured to generate a light distribution command for instructing a light distribution pattern to be formed
in the region in front of the vehicle based on the image information from the camera;

a headlight configured to irradiate the region in front of the vehicle such that the instructed light distribution pattern
is obtained, based on the light distribution command; and

a position calibrator configured to detect a positional deviation between the camera and the headlight,
wherein the position calibrator is configured to execute:
detecting a reference object on a road based on the image information and measuring a luminance of the reference object; and
when there is a certain difference between a luminance of the reference object obtained from one light distribution pattern
and a luminance of the reference object obtained from another light distribution pattern in which a light quantity of only
a part of the another light distribution pattern is different from the one light distribution pattern, detecting the positional
deviation using a position of the part.

US Pat. No. 9,593,818

VEHICULAR MARKER LAMP

KOITO MANUFACTURING CO., ...

1. An automobile headlamp comprising:
a plurality of projection light source units disposed on a single bracket in a lamp chamber,
wherein the plurality of projection light source units comprises a first projection light source unit and a second projection
light source unit,

wherein each of the plurality of projection light source units comprises:
a projection lens,
a cut-off line forming shade,
a first light-emitting element disposed above the shade and a second light-emitting element disposed below the shade as a
light source, and

a first reflector disposed above the shade which reflects light emitted from the first light-emitting element to be guided
to the projection lens, and a second reflector disposed below the shade which reflects light emitted from the second light-emitting
element to be guided to the projection lens,

wherein light distribution patterns formed by the plurality of projection light source units respectively are synthesized
to form a light distribution pattern of the headlamp,

wherein, in each of the projection light source units, the shade extends approximately horizontally and forward such that
an extending tip section thereof is located in a vicinity of a rearward focal point of the projection lens,

wherein a low-beam distribution pattern having a predetermined cut-off line is formed by a light source unit section on an
upper side comprising the projection lens, the shade, the first light-emitting element, and the first reflector,

wherein an additional high-beam distribution pattern having a lower end cut-off line which approximately coincides with the
predetermined cut-off line is formed by a light source unit section on a lower side comprising the projection lens, the shade,
the second light-emitting element, and the second reflector,

wherein each of the first projection light source unit and the second projection light source unit forms a dark zone between
the predetermined cut-off line and the lower end cut-off line, and

wherein an optical axis of the first projection light source unit is set to be parallel to an optical axis of the headlamp,
and an optical axis of the second projection light source unit is slightly tilted forward and downward with respect to the
optical axis of the headlamp, such that the low-beam distribution pattern of the first projection light source unit illuminates
the dark zone formed by the second projection light source unit, and the additional high-beam distribution pattern of the
second projection light source unit illuminates the dark zone formed by the first projection light source unit.

US Pat. No. 9,493,110

VEHICULAR HEADLAMP

KOITO MANUFACTURING CO., ...

1. A vehicular headlamp, comprising:
a light source portion that provides a low beam lighting mode, a high beam lighting mode, and a dimming lighting mode;
a light source power supply portion that supplies to the light source portion a lighting current having a current value according
to lighting mode;

a light distribution mechanism portion that switches light distribution of illumination light by the light source portion
according to the lighting mode; and

a control portion that, at least in the dimming lighting mode, causes the light source power supply portion to supply lighting
current having a second current value lower than a first current value for the low beam lighting mode,

wherein, if a passing command is sent during the dimming lighting mode, the control portion causes the light source power
supply portion to supply lighting current having a current value higher than the second current value and causes the light
distribution mechanism portion to implement light distribution of the high beam lighting mode, and

wherein the light distribution mechanism portion is operable to implement a low beam distribution state and a high beam distribution
state.

US Pat. No. 9,472,775

ORGANIC ELECTROLUMINESCENT PANEL AND VEHICLE LAMP

KOITO MANUFACTURING CO., ...

1. An organic electroluminescent panel comprising:
a substrate made of glass or transparent resin;
a light emitting portion provided along a peripheral edge of the substrate; and
a metal electrode,
wherein the light emitting portion comprises:
a cathode layer;
a transparent conductive film having an extension portion, the extension portion extending toward an outer peripheral portion
of the substrate so as to extend farther outwards than an outer edge of the cathode layer, and contacting the metal electrode;
and

an organic light emitting layer provided between the cathode layer and the transparent conductive film,
wherein the metal electrode is provided on the outer peripheral portion of the substrate to serve as an anode.

US Pat. No. 9,441,806

LAMP UNIT

KOITO MANUFACTURING CO., ...

1. A lamp unit comprising:
a light source;
a projection lens through which at least part of light emitted from the light source passes;
a rotary shade which is disposed behind the projection lens so as to block part of light emitted from the light source and
which has a turning axis; and

a driving mechanism which turns the rotary shade around the turning axis, wherein
the rotary shade comprises:
a first end edge which is projected to the front of the projection lens as a circumferential edge portion of a first light
distribution pattern when the driving mechanism turns the rotary shade to a first angular position;

a second end edge which is projected to the front of the projection lens as a first circumferential edge portion of a second
light distribution pattern which has a wider illumination area than that of the first light distribution pattern when the
driving mechanism turns the rotary shade to a second angular position;

a third end edge which is projected to the front of the projection lens as a first circumferential edge portion of a third
light distribution pattern which has a wider illumination area than that of the second light distribution pattern when the
driving mechanism turns the rotary shade to a third angular position; and

a first twisted end face which extends around the turning axis so as to intersect the second end edge and the third end edge
in different positions in relation to the direction of the turning axis, wherein

the second angular position is positioned between the first angular position and the third angular position, wherein
part of the first twisted end face is projected to the front of the projection lens as a second circumferential portion of
the second light distribution pattern and a second circumferential edge portion of the third light distribution pattern, wherein

the first twisted end face is disposed so as to approach an optical axis of the projection lens as it approaches the projection
lens, and wherein

the first twisted end face moves from the front to the rear of a rear focal point of the projection lens when the driving
mechanism turns the rotary shade from the first angular position to the third angular position.

US Pat. No. 9,688,184

VEHICLE LAMP SYSTEM

KOITO MANUFACTURING CO., ...

1. A vehicle lamp system comprising:
a lamp unit having a plurality of semiconductor light emitting devices which are arranged into an array-like configuration
and configured to form a light distribution pattern which is made up of a plurality of partial areas which correspond individually
to the plurality of semiconductor light emitting devices ahead of a vehicle; and

a control unit configured to control the plurality of semiconductor light emitting devices so as to change their luminous
intensities based on information obtained on forward situations or information obtained on a driving condition of the subject
vehicle to thereby realize a plurality of light distribution patterns, wherein

in a midst of switching the plurality of light distribution patterns from a first light distribution pattern to a second light
distribution pattern which are both included in the plurality of light distribution patterns, in the event that a situation
is detected in which the first light distribution pattern needs to be switched to a third light distribution pattern which
differs from the second light distribution pattern, and

in switching from the second light distribution pattern to the third light distribution pattern, in the event that in the
plurality of partial areas which make up the third light distribution pattern, there exist a plurality of switching partial
areas where an upward trend in illuminance changes to a downward trend,

the control unit controls the drive of the semiconductor light emitting devices which illuminate the plurality of switching
partial areas so that the switching to the third light distribution pattern can be executed within a predetermined length
of time (T1).

US Pat. No. 9,631,786

VEHICLE LAMP WITH PREDETERMINED POSITIONING OF SHADE AND PROJECTION LENS FOCAL POINT

KOITO MANUFACTURING CO., ...

1. A vehicle lamp comprising:
a projection lens which is disposed on an optical axis which extends in a longitudinal direction of a vehicle;
a first light source which emits light which is directed towards a rear focal point of the projection lens;
a second light source which emits light which is directed towards the rear focal point of the projection lens; and
a shade which can not only form a first light distribution pattern having a first cut-off line by cutting off part of light
emitted from the first light source but also form a second light distribution pattern having a second cut-off line by cutting
off part of light emitted from the second light source, wherein

the shade is disposed so that a front end portion thereof is positioned further rearwards than the rear focal point, wherein
the shade is disposed so that the front end portion thereof faces a focal curve of the projection lens, and wherein
the shade is formed into a shape in which a distance between the front end portion and the focal curve in an area which lies
far away from the optical axis is larger than a distance between the front end portion and the focal curve in an area which
lies near the optical axis.

US Pat. No. 9,616,750

VEHICLE DISPLAY SYSTEM

KOITO MANUFACTURING CO., ...

1. A vehicle display system that displays information on a road surface, the vehicle display system comprising:
an other-entity detector that detects whether or not another entity approaches a vehicle mounted with the vehicle display
system;

an intersection detector that detects whether or not the vehicle approaches an intersection; and
a display device,
wherein, when the other-entity detector detects that the another entity approaches the vehicle or when the intersection detector
detects that the vehicle approaches the intersection, the display device displays a predetermined shape in a predetermined
region of a road surface ahead of the vehicle while moving the predetermined shape,

wherein the predetermined shape is a bar shaped mark extending in front and rear directions in the predetermined region, and
wherein the display device moves the predetermined shape in right and left directions in the predetermined region.

US Pat. No. 9,581,306

VEHICLE HEADLAMP

KOITO MANUFACTURING CO., ...

1. A vehicle headlamp comprising:
a light source;
a projection optical member that projects light, which is incident on the projection optical member, ahead;
a light deflector including a plurality of reflective optical devices that are arrayed, wherein
each of the plurality of optical devices are individually switchable between a first state and a second state by selectively
changing a reflection direction of light incident on the plurality of optical devices,

in the first state, the plurality of optical devices reflect light emitted from the light source to a direction other than
a direction towards the projection optical member,

in the second state, the plurality of optical devices reflect the emitted light towards the projection optical member; and
a tube shaped housing, wherein
the light deflector is disposed inside the housing,
the projection optical member is disposed in an opening portion of the housing,
a first portion of the housing, intersecting a path of a light beam incident on the light deflector, is transparent, and
the housing seals the light deflector in a space separate from the light source, wherein the light source is a heat generation
source.

US Pat. No. 9,488,328

VEHICLE LAMP

KOITO MANUFACTURING CO., ...

1. A vehicle lamp comprising:
a light source;
a lens disposed on a front side of the light source and having a front surface and a rear surface which is opposite to the
front surface and faces the light source, wherein the lens has a convex lens shape, and a curvature of the rear surface is
larger than that of the front surface; and

a reflector disposed on a rear side of the lens and reflects light emitted from the light source toward the lens as reflected
light, and

wherein at least one reflective surface of the reflector is formed from a plurality of offset reflective surfaces, each of
which reflects light from the light source towards the lens.

US Pat. No. 9,481,291

VEHICLE LAMP

KOITO MANUFACTURING CO., ...

1. A vehicle lamp comprising:
a light source;
a projection lens through which at least a portion of light emitted from the light source passes; and
an adjustment mechanism configured to adjust a reference position of an optical axis of the projection lens,
wherein the adjustment mechanism comprises:
a first member having a movement axis about which the first member rotates;
a second member holding the first member;
a first screw arranged to adjust the reference position in a first direction; and
a second screw arranged to adjust the reference position in a second direction intersecting the first direction,
wherein the first member is arranged such that the movement axis is positioned on a plane perpendicular to the optical axis
and including a focal point of the projection lens,

wherein an action by a rotation of the first screw and an action by a rotation of the second screw are applied to one of the
first member and the second member,

wherein the vehicle lamp further comprises a housing which defines an enclosed space in which the light source and the projection
lens are disposed,

wherein the first screw is disposed through the housing such that part of the first screw is exposed outside the housing,
and

wherein the second screw is disposed through the housing such that part of the second screw is exposed outside the housing.

US Pat. No. 9,423,611

LENS AND METHOD OF FORMING SHAPE OF LENS BASED ON CALCULATED NORMAL DIRECTION OF LIGHT INCIDENT POINTS ON VIRTUAL LIGHT INCIDENT SURFACE

KOITO MANUFACTURING CO., ...

1. A method for manufacturing a lens of a vehicular lighting apparatus, the method comprising:
defining a first light emitting point (S1) and a second light emitting point (S2) provided on a light emitting surface of a light source;

defining a virtual light incident surface corresponding to a first assumed surface generated by computerized model to be located
at a position where a light incident surface of the lens exists;

defining a virtual light outgoing surface corresponding to a second assumed surface generated by computerized model to be
located at a position where a light outgoing surface of the lens exists;

defining a first projection point (r1) and a second projection point (r2) provided on a projection image on a virtual screen generated by the vehicular lighting apparatus, the first projection point
(r1) corresponding to a calculated point based on a position where light emitted from the first light emitting point (S1) and through the virtual light incident surface intersects the virtual screen and the second projection point (r2) corresponding to a calculated point based on a position where light emitted from the second light emitting point (S2) and through the virtual light incident surface intersects the virtual screen;

respectively calculating normal directions (ni) of the virtual light incident surface at a plurality of light incident points
(Pi) provided on the virtual light incident surface, the plurality of light incident points (Pi) corresponding to calculated
points where the lights emitted from the first and second light emitting points (S1, S2) intersect the virtual light incident surface, in order that the lights emitted from the first light emitting point (S1) and incident on said respective light incident points (Pi) are projected onto said first projection point (r1) and that the lights emitted from the second light emitting point (S2) and incident on said virtual light incident points (Pi) are projected onto the second projection point (r2) provided on the projection image and spaced apart in a predetermined direction from the first projection point (r1);

defining a shape of the virtual light incident surface based on the normal directions (ni) calculated for the respective light
incident points (Pi); and

forming the light incident surface of the lens to have the defined shape of the virtual light incident surface, the forming
comprising manufacturing the lens of the vehicular lighting apparatus having the defined shape of the virtual light incident
surface wherein:

first normal directions (no1) of the virtual light outgoing surface are calculated in order that the emitted lights from a plurality of first light outgoing
points (Po1) are projected onto the first projection point (r1), the first normal directions (no1) correspondingly calculated at the plurality of first light outgoings (Po1) on the virtual light outgoing surface from which the lights emitted from the first light emitting point (S1) and incident on the respective light incident points (Pi) are emitted, and

the normal directions (ni) of the virtual light incident surface at the light incident points (Pi) are calculated based on
second normal directions (no2) of the virtual light outgoing surface at second light outgoing points (Po2) on the virtual light outgoing surface being respectively parallel to the first normal directions (no1) of the virtual light outgoing surface at corresponding first light outgoing points (Po1) of the virtual light outgoing surface having the same light incident points of the plurality of light incident points (Pi)
as the second light outgoing points (Po2) have,

the lights emitted from the second light emitting point (S2) are incident on the light incident points (Pi) and are then emitted to the second light outgoing points (Po2), and

wherein:
the first light emitting point (S1) and the second light emitting point (S2) are provided on the same edge of a plurality of edges of the light emitting surface of the light source; and

the first projection point (r1) and the second projection point (r2) are provided on a hot zone light distribution pattern and provided along a cutoff line which is inclined upwardly from a
horizontal direction.

US Pat. No. 9,386,646

VEHICLE LAMP AND VEHICLE LAMP DRIVING DEVICE

KOITO MANUFACTURING CO., ...

1. A driving device which is used together with a light source including a plurality of light emitting units connected in
series to configure a vehicle lamp, the driving device comprising:
a current source which is configured to supply a drive current to the light source; and
N bypass circuits which are associated with N light emitting units of the plurality of light emitting units and provided in
parallel to the N light emitting units, respectively, and which are configured to be independently switchable between an ON
state and an OFF state, where N is a natural number,

wherein each of the bypass circuits includes:
a bypass transistor which is provided in parallel to a corresponding light emitting unit;
a feedback capacitor which is provided between a gate and a drain of the bypass transistor or between a gate and a collector
of the bypass transistor; and

a gate drive circuit which is configured to supply a drive voltage between the gate and a source of the bypass transistor
or between the gate and an emitter of the bypass transistor, according to a control signal.

US Pat. No. 9,776,555

VEHICULAR LAMP WITH OLED HAVING REPEATED REFLECTIONS

KOITO MANUFACTURING CO., ...

1. A vehicular lamp comprising:
a planar light emitting member having one or more organic EL light emitting portions at part of an organic EL panel; and
a reflecting member and a partially-transparent mirror that are disposed so as to face each other so that light emitted from
the one or more organic EL light emitting portions is reflected repeatedly while allowing part of the light to be transmitted
to the front,

wherein the partially-transparent mirror is disposed at the front of the planar light emitting member,
wherein the partially-transparent mirror has such a size that whole or at least part of each of the one or more organic EL
light emitting portions does not overlap with any of the partially-transparent mirror when the vehicular lamp is observed
from a front thereof,

wherein the reflecting member is a cathode layer that is situated at a portion of the planar light emitting member other than
the one or more organic EL light emitting portions, and

wherein the cathode layer of the organic EL panel is a mirror surface.

US Pat. No. 9,669,754

TURN SIGNAL LAMP

Koito Manufacturing Co., ...

1. A turn signal lamp comprising:
a lamp body;
an outer cover that forms a lamp chamber with the lamp body;
a light source installed in the lamp chamber;
a light guide installed in the lamp chamber and configured to guide light emitted from the light source; and
a camera installed in the lamp chamber and provided with an image capture device,
wherein, when the turn signal lamp is attached to the vehicle surface, at least a portion of the light guide is formed in
an area that extends from the camera in a direction following a vehicle surface.

US Pat. No. 9,574,732

VEHICULAR LAMP

KOITO MANUFACTURING CO., ...

1. A vehicular lamp comprising:
a plurality of light-emitting elements arranged such that light-emitting surfaces of the light-emitting elements face toward
a front of the vehicular lamp; and

a projection lens having a plurality of projection regions that face the respective light-emitting elements, and project light
source images of the respective light-emitting elements facing the projection regions, to the front of the vehicular lamp,
wherein:

a lamp rear surface of the projection lens has protruding portions provided in the respective projection regions, the protruding
portions protruding toward the respective light-emitting elements facing the protruding portions; and

in each of the respective projection regions, a lamp front surface of the projection region is flatter than the lamp rear
surface of the projection region;

wherein each of the protruding portions includes a ridge portion.

US Pat. No. 9,550,448

LIGHT DISTRIBUTION CONTROL METHOD AND LIGHT DISTRIBUTION CONTROL DEVICE FOR A VEHICULAR HEADLAMP

KOITO MANUFACTURING CO., ...

1. A light distribution control method for a vehicular headlamp in which plural illumination regions are arranged in the left-right
direction and illuminated by a headlamp in a desired light distribution pattern, and vehicle positions of a vehicle ahead
are detected and selected ones of the plural illumination regions are reduced in light quantity according to the detected
vehicle positions, wherein:
corrected vehicle positions are set that are obtained by adding margins to the detected vehicle positions in the left and
right directions, respectively, illumination regions where the vehicle ahead exists are detected on the basis of the corrected
vehicle positions, and the detected illumination regions are reduced in light quantity.

US Pat. No. 9,512,974

VEHICULAR LAMP

KOITO MANUFACTURING CO., ...

1. A vehicular lamp comprising:
a lamp casing formed by a lamp housing having an opening on at least one side thereof and a cover attached to the lamp housing
and closing the opening; and

a light source unit disposed in the lamp casing and having
a wiring board having a first surface and a second surface which face different directions, and
a light source mounted on the first surface,
a holding protrusion that holds the light source is provided on the first surface of the wiring board, and
the holding protrusion is in surface contact with a side surface of the light source,
wherein the light source is connected to the wiring board via solders, and
wherein the solders are located so as to be separated from each other in a direction perpendicular to a direction along which
the light source and the holding protrusion are provided next to each other.

US Pat. No. 9,500,338

VEHICLE LAMP

KOITO MANUFACTURING CO., ...

1. A vehicle lamp comprising:
a plurality of lamp units each comprising a light source and a projection lens configured to emit light emitted from the light
source to the front,

wherein the plurality of lamp units form a light distribution pattern by combining irradiation regions formed by each lamp
unit,

at least one of the lamp units has a lens driving mechanism configured to tilt the projection lens in a vertical direction,
and

the lens driving mechanism has a sensor configured to detect the light emitted from the light source.

US Pat. No. 9,347,659

AUTOMOTIVE HEADLAMP, HEAT RADIATING MECHANISM, LIGHT-EMITTING APPARATUS AND LIGHT SOURCE FIXING MEMBER

KOITO MANUFACTURING CO., ...

1. A heat radiation mechanism comprising: a first heat radiation member configured to radiate heat of a light source; and
a second heat radiation member configured to radiate heat generated by a control circuit board for controlling the lighting
of the light source, the second heat radiation member being placed such that the second heat radiation member overlaps with
at least part of the first heat radiation member as viewed from a first direction parallel to the control circuit board, wherein
the first heat radiation member is placed such that the first heat radiation member overlaps with at least part of the control
circuit board as viewed from a second direction perpendicular to the control circuit board.

US Pat. No. 9,840,186

VEHICLE LAMP

KOITO MANUFACTURING CO., ...

1. A vehicle lamp comprising:
a light source;
a drive circuit configured to supply a driving current according to a dimming signal to the light source;
a processor configured to generate a turn on or off ordering signal that signals the light source to be turned on or off according
to an instruction from the vehicle and information indicating a driving situation;

a gradual varying controller configured to generate the dimming signal that varies with time in response to the turn on or
off ordering signal;

a switch provided on a power supply path from a battery to the drive circuit and controlled to be turned on or off by the
processor,

wherein the processor switches between a first mode in which the light source is turned off momentarily and a second mode
in which the light source is turned off gradually, and

wherein the processor switches off the switch (i) when the light source is turned off in the first mode and causes the light
source to be turned off gradually by the gradual varying controller with the turn on or off ordering signal shifted to a turn
off level (ii) when the light source is turned off in the second mode.

US Pat. No. 9,835,305

VEHICULAR LAMP

KOITO MANUFACTURING CO., ...

1. A vehicular lamp comprising:
a light source; and
a light guide disposed such that light emitted from the light source is incident on an end face of the light guide, the light
guide emitting light, guided into the light guide interior, heading vehicle-forward from an exit face of the light guide running
along the light guide's lengthwise extension; wherein

the light guide includes
reflection steps formed on a surface of the light guide on a side reverse from the exit face, for reflecting light guided
into the light-guide interior toward the exit face; and

a plurality of adjacently bordering diffusion flutes formed on said end face, each being arcuate in substantially horizontal
cross-section through said end face, and each being of constant form in extension substantially perpendicular to the horizontal
cross-section.

US Pat. No. 9,539,931

AUTOMOTIVE LAMP

KOITO MANUFACTURING CO., ...

1. An automotive lamp comprising:
a first lamp unit that has a first projection lens;
a second lamp unit that has a second projection lens; and
an inter-lens region illumination lens that is arranged such that the inter-lens region illumination lens covers a region
between the first projection lens and the second projection lens when viewed from the front of the lamp and such that the
inter-lens region illumination lens radiates, toward the front of the lamp, light that is emitted from at least one of the
first projection lens and the second projection lens and that enters the inter-lens region illumination lens,

wherein, when viewed from the front of the lamp, the inter-lens region illumination lens covers the first projection lens
and the second projection lens and has a shape that is the same as or similar to a shape formed by the first projection lens
and the second projection lens that are connected to each other.

US Pat. No. 9,517,717

AUTOMOTIVE LAMP

KOITO MANUFACTURING CO., ...

1. An automotive lamp system comprising:
a laser light source;
a scanning unit that scans laser light emitted from the laser light source and forms a visible light distribution pattern;
an obstacle detector that detects an obstacle in front of a driver's vehicle; and
a control unit that adjusts intensity of the laser light irradiated to a region where the obstacle detected by the obstacle
detector is existent, wherein the control unit performs control such that the intensity of the laser light irradiated to a
periphery of the visible light distribution pattern is less than the intensity thereof irradiated to a central part of the
visible light distribution pattern.

US Pat. No. 9,511,707

VEHICULAR LAMP

KOITO MANUFACTURING CO., ...

1. A lamp that is mounted on a vehicle, comprising:
a transparent substrate including a translucent conductive layer;
a light-emitting element supported by the transparent substrate and electrically connected to the conductive layer;
a connection portion electrically connected to the conductive layer at an end of the transparent substrate; and
a connector electrically connected to the connection portion.

US Pat. No. 9,494,288

AUTOMOTIVE HEADLAMP APPARATUS

KOITO MANUFACTURING CO., ...

1. An automotive headlamp apparatus comprising:
a light source in which a plurality of semiconductor light-emitting elements are arranged at intervals from each other; and
a projection lens configured to project light, emitted from the light source, toward a front area of a vehicle as a light
source image,

wherein the semiconductor light-emitting elements are located in front of a focal point of the projection lens.

US Pat. No. 10,072,808

VEHICLE LAMP

Koito Manufacturing Co., ...

1. A vehicle lamp comprising:a pair of lamp modules configured to form a pair of left and right light distribution patterns by irradiation light therefrom,
wherein each of the lamp modules includes a first lamp unit that uses a light emitting diode as a light source and a second lamp unit that uses a laser diode as a light source, and is configured to form a horizontally elongated first light distribution pattern by irradiation light from the first lamp unit and to form a second light distribution pattern, which is smaller and brighter than the first light distribution pattern, by irradiation light from the second lamp unit,
the first lamp units in the pair of lamp modules are configured to form a pair of the first light distribution patterns having a predetermined distance therebetween in a left-and-right direction,
the second lamp units in the pair of lamp modules are configured to form pair of the second light distribution patterns so as to partially overlap each other between the pair of first light distribution patterns and to partially overlap the pair of first light distribution patterns, and
the light emitting diode and the laser diode are configured to be selectively turned on.

US Pat. No. 9,625,117

VEHICLE LAMP

KOITO MANUFACTURING CO., ...

1. A vehicle lamp, characterized by comprising:
a plurality of semiconductor light emitting devices; and
a heat sink having a device mounting portion where the plurality of semiconductor light emitting devices are mounted, and
characterized in that

the heat sink is formed so as to define a first space which the semiconductor light emitting devices stand to face and a second
space which is different from the first space, and in that

the device mounting portion has a plurality of device disposing surfaces where the plurality of semiconductor light emitting
devices are individually disposed and a recess portion which defines a third space which is opened towards the second space.

US Pat. No. 9,528,677

VEHICLE LAMP UNIT AND VEHICLE HEADLAMP

KOITO MANUFACTURING CO., ...

1. A vehicle lamp unit that is mounted on a vehicle, the lamp unit comprising:
a light source;
a movable shade that is capable of being pivoted about a pivot shaft and switches a shielded amount of light emitted from
the light source in accordance with a pivot amount;

an actuator having an output shaft that can be axially moved;
a link member that is connected to the output shaft and displaced in conjunction with a movement of the output shaft;
a first sliding contact member provided on the movable shade; and
a second sliding contact member that is provided on the link member and abutted against the first sliding contact member,
wherein the movable shade is configured to be pivoted about the pivot shaft when the first sliding contact member slides on
the second sliding contact member in accordance with a displacement of the link member, and

a surface of one of the first sliding contact member and the second sliding contact member is formed as a curved surface.

US Pat. No. 9,851,064

VEHICLE LAMP ASSEMBLED WITH MOISTURE-CURING TYPE ADHESIVE

Koito Manufacturing Co., ...

1. A vehicle lamp comprising:
a lens component made of a resin;
an insertion portion formed on the lens component;
a lamp body made of a resin; and
a groove formed in the lamp body, and inner surface of the groove having an adhesive portion and a non-adhesive portion, the
insertion portion being inserted into the groove and the lens component being fixed to the lamp body by a moisture curing
type adhesive introduced into the groove,

wherein, at least a portion of the insertion portion received in the groove and directly touching at least a portion of the
non-adhesive portion, with the adhesive portion facing and spaced apart from the insertion portion by a gap with a constant
thickness ranging from 0.1 mm to 1.0 mm, and the moisture curing type adhesive being disposed within the gap.

US Pat. No. 9,739,438

VEHICLE LAMP

KOITO MANUFACTURING CO., ...

1. A vehicle lamp comprising:
a lamp outer case comprising:
a cover, and
a lamp housing;
a reflection first lamp unit comprising:
a first light source,
a reflector which reflects light emitted from the first light source, and
a shade which cuts off part of light emitted from the first light source and forming a collective optical system;
a direct emission second lamp unit having a second light source, which directly emits shining light,
wherein the second lamp unit is disposed on an external side, in a transverse direction of the vehicle, of the first lamp
unit and forms a diffuse optical system; and

a compound lens disposed along an inner surface of the cover,
wherein an outer surface of the compound lens facing the inner surface of the cover is formed as a light emitting surface
and is formed into a curved surface,

wherein a first control portion and a second control portion are provided on an inner surface of the compound lens,
wherein the inner surface of the compound lens faces the first lamp unit and the second lamp unit so that the first control
portion and the second control portion control light emitted from the first light source and light emitted from the second
light source, respectively, and

wherein the light emitting surface of the compound lens is formed into a shape which is displaced to the rear as the compound
lens extends outwards in the transverse direction of the vehicle.

US Pat. No. 9,752,759

LIGHT EMISSION DEVICE AND LAMP UNIT

KOITO MANUFACTURING CO., ...

1. A lamp unit comprising:
a light emission device comprising an organic EL panel in which an organic EL light emission portion is formed on a substrate,
the organic EL panel being flexible; and

a frame that fixes the light emission device so as to cover a light emission area of the organic EL panel,
wherein the frame comprises a window or a transparent portion at least in a part of a portion, overlapping the light emission
area, of the frame, and

wherein the frame is formed with U-shaped recess portions at both ends thereof that extend in a rear direction away from a
light emission direction of the light emission device, and that secure and house both end portions of the organic EL panel.

US Pat. No. 9,718,393

VEHICLE LAMP WITH A CONDUCTIVE REFLECTOR AND A GROUNDING CONNECTION TERMINAL

KOITO MANUFACTURING CO., ...

1. A vehicle lamp comprising:
a transparent surface cover;
light emitting diodes that emit light, the light emitting diodes being disposed on an inner side of the transparent surface
cover;

a conductive reflector that reflects the light emitted from the light emitting diodes toward the surface cover, the conductive
reflector being provided between the light emitting diodes and the surface cover, the reflector being disposed so as to be
in a state where the reflector is in proximity to the light emitting diodes;

a grounding connection terminal that is disposed on the reflector, the grounding connection terminal being connected to a
vehicle body;

a conductive base connected to the vehicle body; and
a resin circuit board disposed on the conductive base,
wherein the light emitting diodes and the reflector are mounted on the circuit board, and
wherein the grounding connection terminal of the reflector is attached to the conductive base by screwing a metal screw into
the grounding connection terminal, the circuit board, and the conductive base.

US Pat. No. 9,714,747

VEHICLE LAMP

KOITO MANUFACTURING CO., ...

1. A vehicle lamp configured so as to be capable of selectively performing low beam illumination and high beam illumination,
the vehicle lamp comprising:
a projection lens;
a first light source; and
a light emitting unit, the first light source and the light emitting unit disposed in rear of the projection lens,
wherein:
light emitted from the first light source is irradiated forward through the projection lens,
the light emitting unit is configured to cause light to be incident onto the projection lens to form a high beam supplementary
light distribution pattern to the low beam light distribution pattern,

the light emitting unit comprises:
a second light source; and
a transparent member comprising:
a front end surface; and
an emission window provided in an upper surface of the transparent member and in rear of a front edge of the upper surface,
the upper surface of the transparent member comprising a shade configured to block a part of the light emitted from the first
light source toward the projection lens to form a low beam light distribution pattern, the shade being configured by performing
surface treatment on the upper surface of the transparent member,

light emitted from the second light source is incident on the transparent member,
the transparent member is configured to emit the light emitted from the second light source from the front end surface,
the emission window is configured to emit the light, which is emitted from the second light source onto the transparent member,
toward the projection lens, and

wherein:
light emitted from the front end surface of the transparent member forms a basic shape of the high beam supplementary light
distribution pattern, and

the light emitted from the emission window of the transparent member forms the high beam supplementary light distribution
pattern so that the high beam supplementary light distribution pattern extends to a region below cut-off lines of the low
beam light distribution pattern.

US Pat. No. 9,644,809

LIGHT SOURCE UNIT

KOITO MANUFACTURING CO., ...

1. A light source unit comprising:
a socket that has a first thermal conductivity and includes a portion that defines a first side and a second side;
a heat dissipation member that has a second thermal conductivity being higher than the first thermal conductivity;
a board disposed on the first side;
a semiconductor light emitting element supported by the board; and
a conduction terminal that electrically connects to the semiconductor light emitting element, wherein
the socket is an injection-molded member, and
the heat dissipation member includes:
a first portion that is disposed on the first side, extends in a first direction, and supports the board, and
a second portion that includes a portion extending in a second direction intersecting with the first direction, as a result
of being subjected to bending processing,

a part of the second portion is disposed on the second side,
the socket includes a connector portion that houses a tip of the conduction terminal,
the connector portion is formed with an opening that is located on the second side, and
a tip of the second portion is more distant from the first portion in the second direction than the tip of the conduction
terminal is.

US Pat. No. 9,528,678

VEHICULAR LAMP

KOITO MANUFACTURING CO., ...

1. A vehicular lamp comprising:
a plurality of light emitting units, each of light emitting units including a substrate, an organic electro luminescence device
having an organic light emitting layer formed on the substrate, and a cap configured to seal the organic electro luminescence
device, wherein

at least two of the plurality of light emitting units have the organic light emitting layers which are different in shape
or size, the substrates which are same in shape and size, and the caps which are same in shape and size.

US Pat. No. 10,072,807

VEHICULAR HEADLAMP

Koito Manufacturing Co., ...

1. A vehicular headlamp comprising:an excitation light source;
a scanning mechanism configured to scan light emitted by the excitation light source toward a predetermined direction;
a projection lens; and
a phosphor provided between the scanning mechanism and the projection lens and configured to transmit light scanned by the scanning mechanism toward the projection lens,
wherein the phosphor is formed as a curved body that is curved in a direction opposite to a curved image plane of the projection lens.

US Pat. No. 9,981,596

VEHICLE LAMP AND VEHICLE LAMP SYSTEM

KOITO MANUFACTURING CO., ...

1. A vehicle lamp system comprising:a first lamp unit configured to irradiate light having a first correlated color temperature;
a second lamp unit configured to irradiate light having a second correlated color temperature lower than the first correlated color temperature of the first lamp unit and configured to form a combined light distribution pattern, together with the light irradiated from the first lamp unit, the combined light distribution pattern being formed by overlapping the light from the first lamp unit and the light from the second lamp unit; and
a controller configured to increase a light flux of the first lamp unit from a first light flux greater than zero to a second light flux greater than the first light flux, or increase a light flux of the second lamp unit from a third light flux greater than zero to a fourth light flux greater than the third light flux, in accordance with change in vehicle speed.

US Pat. No. 9,528,673

VEHICLE LAMP

Koito Manufacturing Co., ...

1. A vehicle lamp comprising:
a projection lens;
a light source disposed at a rear side of a rear focus of the projection lens;
a reflector configured to reflect light from the light source toward the projection lens; and
a mirror member which has an upward reflecting surface configured to upwardly reflect a part of the light reflected from the
reflector and is disposed such that a front edge of the upward reflecting surface passes through the rear focus or a vicinity
thereof,

wherein a central portion of the front edge of the upward reflecting surface is formed to extend along a meridional image
surface of the projection lens both at a left side and a right side of an optical axis,

each of a left end portion and a right end portion of the front edge is formed to be displaced forward or backward with respect
to the meridional image surface, and

a low-beam light distribution pattern is formed on a virtual vertical screen disposed at a predetermined distance ahead of
a vehicle by light irradiated forward from the vehicle lamp,

wherein the low-beam light distribution pattern includes:
a first cut-off line formed at an upper edge thereof in an opposite lane side of an own vehicle lane side; and
a second cut-off line formed at the upper edge thereof in the own vehicle lane side,
wherein the first cut-off line includes:
a first inner cut-off line extending horizontally in an angle range up to a predetermined degree at a right side from a vertical
line passing through a vanishing point in a front direction of the vehicle lamp; and

a first outer cut-off line displaced upward from the first inner cut-off line,
the second cut-off line includes:
a second inner cut-off line extending horizontally in an angle range up to a predetermined degree at a left side from the
vertical line; and

a second outer cut-off line displaced upward from the second inner cut-off line, and
wherein a forward or backward displacement amount of each of the left end portion and the right end portion of the front edge
from the meridional image surface is set such that the first outer cut-off line and the second outer cut-off line have a substantially
symmetric upward protrusion amount from a horizontal line passing through the vanishing point.

US Pat. No. 10,094,526

VEHICLE LAMP

KOITO MANUFACTURING CO., ...

1. A vehicle lamp, comprising:a light source;
a metal light-source stage including a light-source mounting portion; and
a lens member that emits light from the light source toward a front of the lamp,
wherein the light-source stage includes a support portion for the lens member,
wherein the lens member includes a leg projecting toward the light-source stage and having an end that is supported by the support portion,
wherein the support portion includes three projections that abut the leg in a state in which the leg is supported by the support portion and that position the lens member in a direction of an optical axis,
wherein the three projections are positioned relative to one another such that at least a portion of the light source lies in an extension range of a triangle with vertices given by the three projections, and
wherein the light-source stage diffuses heat emitted by the light source.

US Pat. No. 9,829,166

VEHICULAR LAMP

KOITO MANUFACTURING CO., ...

1. A vehicular lamp comprising:
a first laser light source emitting, along a first optical path, blue laser light having a peak wavelength in a wavelength
region of from 450 nm to 470 nm;

a second laser light source emitting, along a second optical path, green laser light having a peak wavelength in a wavelength
region of from 510 nm to 550 nm;

a third laser light source emitting, along a third optical path, red laser light having a peak wavelength in a wavelength
region of from 630 nm to 650 nm;

a phosphor disposed in either the first or the second optical path, such that by being excited by either the blue laser light
or the green laser light, the phosphor emits, along either the first or the second optical path, excitation light having a
peak wavelength in a wavelength region of from 580 nm to 600 nm; and

a light condensing unit for collecting, and emitting as generated white light, the blue laser light, the green laser light,
the red laser light, and the excitation light.

US Pat. No. 9,822,943

LAMP UNIT

KOITO MANUFACTURING CO., ...

1. A lamp unit comprising:
a projection optical system;
a light deflecting device having a reflective part, the light deflecting device being disposed on an optical axis of the projection
optical system and configured to selectively reflect an incident light to the projection optical system; and

an irradiation optical system configured to irradiate light to the reflective part of the light deflecting device,
wherein the light deflecting device has at least some region in the reflective part, a position of which is switchable between
a first reflection position where the light irradiated by the irradiation optical system is reflected toward the projection
optical system so as to be effectively used as a portion of a desired light distribution pattern, and a second reflection
position where the light irradiated by the irradiation optical system is reflected so as not to be effectively used,

wherein, in the first reflection position, a front face of the reflective part faces a direction towards one side of a vertical
plane including the optical axis of the projection optical system, and

wherein the irradiation optical system is disposed at a position such that a center line of the irradiation optical system
directed towards the light deflecting device forms an angle with the vertical plane, the angle being towards the one side
of the vertical plane.

US Pat. No. 9,739,437

VEHICULAR LAMP UNIT

KOITO MANUFACTURING CO., ...

1. A vehicular lamp unit, comprising:
a flat substrate;
a light source comprising a first light-emitting element and a second light-emitting element disposed on the substrate; and
an optical element having the light source attached thereto,
wherein the substrate is long in a first direction,
wherein the optical element radiates emitted light of the first and second light-emitting elements toward a front of the vehicular
lamp unit, with a desired light distribution,

wherein a reference portion serving as a positioning reference for the optical element is provided in a part of the substrate,
wherein the reference portion on the substrate engages with the optical element to position the substrate with respect to
the optical element,

wherein the first and second light-emitting elements are arranged in the first direction,
wherein the first light-emitting element illuminates an area having high light intensity of the light distribution,
wherein the second light-emitting element illuminates an area having low light intensity of the light distribution, and
wherein the first light-emitting element is mounted at a position closer to the reference portion in the first direction than
the second light-emitting element.

US Pat. No. 9,719,650

VEHICLE LAMP

KOITO MANUFACTURING CO., ...

1. A vehicle lamp configured to selectively perform low beam irradiation and high beam irradiation, comprising:
a light emitting element;
a reflector that reflects an emitted light beam from the light emitting element forward; and
a shade movable between a light blocking position at which a part of the emitted light beam traveling from the light emitting
element to the reflector is blocked and a light blocking release position at which the light blocking is released, wherein:

the light emitting element is disposed such that a light emitting surface of the light emitting element faces one side in
a lateral direction and an upper end edge of the light emitting surface extends in a front-rear direction;

a reflective surface of the reflector includes a first reflective area on which the emitted light beam from the light emitting
element is incident, and a second reflective area on which the emitted light beam from the light emitting element is not incident
when the shade is at the light blocking position; and

a low-beam light distribution pattern having a horizontal cut-off line and an oblique cut-off line is formed by a reflected
light beam from the first reflective area when the shade is at the light blocking position, and a high-beam light distribution
pattern is formed by the reflected light beam from the first reflective area and a reflected light beam from the second reflective
area when the shade is at the light blocking release position, wherein:

the first reflective area includes a first sub-reflective area disposed at a position that intersects a horizontal plane including
the upper end edge of the light emitting surface, and a second sub-reflective area disposed at a position that intersects
an inclined plane including the upper end edge of the light emitting surface and inclined downward relative to the horizontal
plane; and

the horizontal cut-off line is formed by a reflected light beam from the first sub-reflective area and the oblique cut-off
line is formed by a reflected light beam from the second sub-reflective area.

US Pat. No. 9,494,290

VEHICLE LAMP

KOITO MANUFACTURING CO., ...

1. A vehicle lamp comprising:
a semiconductor light source disposed on an optical axis of the vehicle lamp;
a reflector comprising a plurality of reflective surfaces radially divided about the optical axis and boundary portions formed
between two of the reflective surfaces adjacent to each other; and

a lens cap that covers the front side of the light source,
wherein the lens cap comprises a side lens portion that projects laterally emitted light from the light source toward the
reflector,

wherein the laterally emitted light makes an angle with the optical axis that is at least a predetermined angle, and
wherein the side lens portion is divided into at least two lens elements in a circumferential direction around the optical
axis, and refracts the laterally emitted light so that the laterally emitted light avoids the boundary portions.

US Pat. No. 9,345,075

VEHICULAR HEADLAMP

Koito Manufacturing Co., ...

1. A vehicular headlamp, comprising:
a lamp case provided with a lamp housing having a concave portion which is open to the front side and a cover which closes
an opening of the lamp housing;

a light source provided in the lamp case;
a power converting unit connected to the light source and configured to obtain an output current to light up the light source
based on an input voltage, such that an amount of luminescence of the light source is adjusted by a current value of the output
current;

a cooling fan configured to suppress a temperature rising in the lamp case; and
a control unit configured to control the light source and the cooling fan,
wherein, when a signal indicating a first light-up state is input, the control unit sets the current value of the output current
to a predetermined value such that the cooling fan is rotated at a predetermined rotation speed,

when a signal indicating a second light-up state is input, the control unit lowers the current value of the output current
to a value lower than the predetermined value such that the rotation speed of the cooling fan is lower than the predetermined
rotation speed, and

the control unit performs a temperature derating control for the output current and changes a characteristic of the temperature
derating control when the signal indicating the first light-up state is input or when the signal indicating the second light-up
state is input.

US Pat. No. 9,829,176

LAMP

Koito Manufacturing Co., ...

1. A lamp comprising:
a projection lens;
a light source disposed behind the projection lens;
a lens holder configured to hold the projection lens; and
a lamp body configured to be fixed to a vehicle and hold the lens holder while accommodating the light source,
wherein a front surface of the projection lens includes a central region which is configured by a convex curved surface and
a peripheral region around the central region which is configured by an annular concave curved surface,

the lens holder is formed in a cylindrical shape and an annular flange portion extending towards an inner peripheral side
is formed at a front end of the lens holder,

an annular step portion which is stepped down to a rear side is formed at an outer peripheral edge of the peripheral region
on the front surface of the projection lens, and

the projection lens is fixed to the annular flange portion of the lens holder only from the rear side at a step surface of
the annular step portion such that the projection lens can be held only by the lens holder when the lamp is used to irradiate
the front side in a state in which the lamp is attached to the vehicle,

wherein the projection lens is fixed to the lens holder by welding.

US Pat. No. 9,671,081

MARKER LAMP

Koito Manufacturing Co., ...

1. A marker lamp mounted on a vehicle, comprising:
a first optical system including a first light source and configured to emit a first illumination light;
a second optical system including a second light source and configured to emit a second illumination light; and
a controller configured to control turning-on/off of the first light source and the second light source,
wherein at least a part of an illumination range where a predetermined light intensity is obtained by the second illumination
light is positioned outside an illumination range where the predetermined light intensity is obtained by the first illumination
light,

the first optical system and the second optical system are configured such that a first illumination standard is satisfied
by the first illumination light and the second illumination light,

the first optical system is configured such that a second illumination standard is satisfied by the first illumination light,
and

the controller is configured to allow the turning-on of the first light source when the turning-on of the second light source
is disabled, and prohibit the turning-on of the second light source when the turning-on of the first light source is disabled.

US Pat. No. 9,664,350

VEHICLE LAMP

KOITO MANUFACTURING CO., ...

1. A vehicle lamp, comprising:
an optical unit comprising:
a light source,
an optical member, and
an attachment part comprising:
a first surface on which the light source is attached,
a second surface on which the optical member is attached, and
a third surface that faces an opposite direction to the first surface, and faces a different direction from the second surface;
and

a light source control circuit part,
wherein the light source control circuit part is attachable to the third surface of the attachment part,which faces the opposite
direction to the first surface,

wherein the optical member includes:
a lens disposed on a lamp front side of the light source, and
a reflector disposed so as to cover an upper portion of the light source,
wherein a heat sink is provided on an opposite side to the first surface of the attachment part on which the light source
is attached, and

wherein the light source control circuit part is disposed adjacent o the heat sink on a lamp front side of the heat sink.

US Pat. No. 9,689,558

ATTACHMENT AND LIGHTING APPARATUS

KOITO MANUFACTURING CO., ...

1. An attachment adapted to fix a semiconductor light source unit to a support member, the attachment comprising:
a frame having an opening periphery portion defining an opening to allow light emitted from the semiconductor light source
unit to pass through the opening when the semiconductor light source unit is fixed to the support member;

a first conductive terminal piece extending from the opening periphery portion; and
a second conductive terminal piece extending from the opening periphery portion,
wherein the first conductive terminal piece extends in one direction to contact a first power receiving portion of the semiconductor
light source unit when the semiconductor light source unit is fixed to the support member, and

wherein the second conductive terminal piece extends in said one direction to contact a second power receiving portion of
the semiconductor light source unit when the semiconductor light source unit is fixed to the support member,

wherein the frame comprises a holding portion configured to contact an upper surface of the semiconductor light source unit
when the semiconductor light source unit is fixed to the support member, the holding portion extending from the opening periphery
portion of the frame; and

wherein the holding portion is made of an electrically insulating material.