Abstract: A light source unit for a vehicle headlight includes a circuit board on which four light emitting devices are disposed at each of four directions with respect to a center thereof, and a reflector provided on the circuit board so as to surround the four light emitting devices, wherein the circuit board includes four side areas in which the four light emitting devices are disposed, one center area disposed at a center of the four side areas and four corner areas disposed at corner sections next to the four side areas, and the reflector includes eight first reflective surfaces provided to divide spaces between each of the side areas and the corner areas, and four second reflective surfaces provided to divide sides of each of side areas opposite to the center area.
Abstract: In a lighting tool for a vehicle, a first incident section has a first condensing incident surface disposed at a center of a portion facing a first light source and into which a part of light emitted from the first light source enters, and a protrusion protruding from a position surrounding the first condensing incident surface toward the first light source, a second incident section has a second condensing incident surface disposed at a portion facing a second light source and into which light emitted from the second light source enters, and the second condensing incident surface is provided adjacent to the protrusion.
Abstract: Provided is a vehicle lamp which enables work for connecting an organic EL panel and a power feeding section to be omitted. A vehicle lamp 10 includes: a lamp unit 20; a mounting section 70 to which the lamp unit 20 is detachably mounted; and first fixing means (a first fixing section) which fixes the lamp unit 20 detachably mounted to the mounting section 70, and the mounting section 70, wherein the lamp unit 20 includes: an organic EL panel 40 including a front surface 40a with a light-emitting surface 40a1, and a rear surface 40b on an opposite side to the front surface 40a; a first electrode 54 electrically connected to the organic EL panel 40; and a first bracket 30 which holds the organic EL panel 40 and the first electrode 54, and the mounting section 70 includes a second electrode 82 to which the first electrode 54 of the lamp unit 20 fixed by the first fixing means (first fixing section) is to be electrically connected.
August 21, 2018
Date of Patent:
May 26, 2020
STANLEY ELECTRIC CO., LTD.
Koichiro Ano, Hiroyuki Chikama, Kai Ikeda
Abstract: A vertical ultraviolet light-emitting diode has, on an aluminum polar plane of an n-type AlN single crystal substrate, a layer represented by n-type AlXGa1-XN (wherein X is a rational number satisfying 0.5?X?1.0), an active layer, a layer represented by p-type AlYGa1-YN (wherein Y is a rational number satisfying 0.5?Y?1.0) and a p-type GaN layer in this order and which is equipped with a p-electrode formed on the p-type GaN layer and an n-electrode partially provided on a plane on the opposite side to the aluminum polar plane of the n-type AlN single crystal substrate, preferably an n-electrode formed by providing at least one opening functioning as a light extraction window, wherein the shortest distance between the n-electrode and an arbitrary point in a portion where the n-electrode is not provided, is not more than 400 ?m.
Abstract: A lighting control device configured to control a radiation state of light from a headlamp for a vehicle includes a vehicle model information acquisition section configured to acquire vehicle model information of a vehicle located in front in front of a host vehicle, a distance detection section configured to detect a distance between the vehicle located in front and the host vehicle, and a light distribution controller configured to control a light distribution with respect to a side in front of the host vehicle by the headlamp for a vehicle on the basis of the vehicle model information and the distance.
Abstract: To improve the appearance of a light distribution pattern. A liquid crystal element having a first substrate, a second substrate, and a liquid crystal layer, where the first substrate has a counter electrode, where the second substrate includes inter-pixel electrodes, wiring parts, an insulating layer provided above the inter-pixel electrodes and the wiring parts, and pixel electrodes provided above the insulating layer, where the pixel electrodes are arranged along a first direction and a second direction, where the inter-pixel electrodes are arranged to at least overlap with a gap between the two pixel electrodes adjacent to each other in the first direction among the pixel electrodes and are connected to one of the two pixel electrodes through a through hole provided in the insulating layer, and where the wiring parts are connected to one of the inter-pixel electrodes and are arranged on the lower layer side of the pixel electrodes.
December 26, 2018
Date of Patent:
May 12, 2020
STANLEY ELECTRIC CO., LTD.
Yasuo Toko, Tomohide Mano, Keisuke Kato
Abstract: To improve the appearance of a light distribution pattern. A liquid crystal element including: a first substrate; a second substrate; a liquid crystal layer; and columnar bodies; where the first substrate has a counter electrode provided on its one surface side; where the second substrate is configured to include wiring parts provided on its one surface side, an insulating layer provided on the upper side of the wiring parts, and pixel electrodes provided on the upper side of the insulating layer; where the pixel electrodes are arranged along a first direction; where each wiring part is connected to one of the pixel electrodes, arranged on the lower layer side of the pixel electrodes, and has a connection region that passes through a gap between the pixel electrodes adjacent to each other in the first direction; and where the columnar bodies is provided at a position overlapping the connection region.
Abstract: A display device includes a light guide plate that includes a plurality of reflecting dots; and a light source, wherein light emitted from the light source enters inside of the light guide plate from the end surface of the light guide plate and the light is guided inside of the light guiding plate, a display pattern formed by the plurality of reflecting dots is displayed by emitting the light reflected by the plurality of reflecting dots to an outside from a front surface side of the light guide plate, and each of the reflecting dots are formed such that a reflecting direction of the light, that is reflected by the reflecting dots, with respect to an incidence direction of the light, that enters the reflecting dots, is adjusted so that the light reflected by the plurality of reflecting dots is emitted toward a specific eye point of a viewer.
Abstract: Provided is a group III nitride stacked body having an n-type AlXGa1-XN (0.5?X<1) layer formed on an AlN single crystal substrate while being lattice-matched to the AlN single crystal substrate wherein the n-type AlXGa1-XN (0.5?X<1) layer has at least a stacked structure in which a first n-type AlX1Ga1-X1N (0.5?X1<1) layer, a second n-type AlX2Ga1-X2N (0.5?X2<1) layer, and a third n-type AlX3Ga1-X3N (0.5?X3<1) layer are stacked in this order from the AlN single crystal substrate side, and X1, X2, and X3 indicating the Al compositions of the respective layers satisfy 0<|X1?X2|?0.1, and satisfy 0<|X2?X3|?0.1.
Abstract: Provided is a lighting tool for a vehicle including a first power supply, and a lamp for a vehicle operated with electric power supplied from the first power supply, a detection unit that detects a waveform of first electric power, a generation unit that generates a first control signal that is a signal controlling the lamp for a vehicle according to the waveform of the detected first electric power, an output control unit that superimposes the first control signal on the first electric power and wirelessly transmit the signal obtained by the superimposition from a power transmission section, a conversion unit that acquires a second control signal based on the signal received by a power receiving section that receives the signal wirelessly transmitted from the power transmission section, and a lamp control unit that controls the lamp for a vehicle according to the second control signal.
Abstract: Provided is a vehicular lamp capable of achieving cost reduction by improving assembling workability and reducing the number of parts. The vehicular lamp includes a housing and an outer lens that covers the front opening of the housing to define a light chamber; and an LED, a light guide inner lens that guides light emitted from the LED, a light source substrate on which the LED is mounted, an extension arranged around the light guide inner lens, and a power supply unit fixed to the housing, which are accommodated in the light chamber. The light guide inner lens is composed of first and second divided pieces that are arranged in an axial direction of the light guide inner lens, and the first divided piece is fixed to the housing together with the light source substrate and the second divided piece is fixed to the extension.
Abstract: A control device for a vehicle headlight includes a motion information acquisition part that acquires information of a motion of at least a part of a driver in the vehicle, an attribute decision part that determines attribute of the driver based on the information acquired by the motion information acquisition part, and a light distribution controller that controls a light distribution of the vehicle headlight based on the attribute determined by the attribute decision part.
Abstract: A vehicle lamp includes a light source, and a light guide body, wherein the light guide body has a first light guide section disposed to have one surface facing the light source, and a second light guide section formed to protrude from a second end surface and a third end surface of the first light guide section, the first light guide section includes an incidence section, a first reflective section provided on a surface facing the incidence section, a second reflective section and a third reflective section provided on an end surface that constitutes a profile of the first light guide section.
Abstract: To improve the accuracy of fully controlling the direction of advancing light. The liquid crystal element includes a first substrate and a second substrate, a liquid crystal layer provided between one surface side of the first substrate and one surface side of the second substrate, a pair of electrodes provided on one surface side of the first substrate with a gap therebetween in a planer view, a high-resistance film provided on one surface side of the first substrate and disposed between the pair of electrodes in a planer view and connected thereto, a first alignment film provided on one surface side of the first substrate covering the pair of electrodes and the high-resistance film, a second alignment film provided on one surface side of the second substrate, wherein sheet resistance of the high-resistance film is greater than sheet resistance of the pair of electrodes.
Abstract: A display device for a vehicle includes a light source, an image generating section configured to modulate light emitted from the light source using an image according to an inter-vehicle distance between a host vehicle and a preceding vehicle and generate an image according to the inter-vehicle distance, a condensing optical system configured to condense light having information representing the image according to the inter-vehicle distance generated by the image generating section, and a reflecting section configured to reflect the light condensed by the condensing optical system and project the light to a road surface, wherein the reflecting section has a reflecting surface with a curvature that gradually increases from a rear side in a projecting direction toward a front side in the projecting direction.
Abstract: In a lighting tool for a vehicle, a part of light emitted from a light source which is either one of a first light source and a second light source enters from an incident section which is one of a first incident section and a second incident section, passes through the light guide body at a side closer to a light guide section than an abutting section, and is emitted from another incident section toward another light source and then reflected by the another light source, and a part of light reflected by the another light source enters from the another incident section and then is reflected toward the light guide section by an inclined surface.
Abstract: Provided is a vehicular headlight that is capable of generating a clear light distribution pattern using a monolithic array light source of surface emitting lasers. The vehicular headlight 1a includes a VCSEL array 5, an image generation unit including a lens array 6 which outputs incident light from the VCSEL array 5 as collimated light so that an image of a light distribution pattern as an illuminance distribution is generated on an output side, a light distribution pattern forming unit 7 having an image forming surface on which the image is formed by the incident light from the image generation unit, and a projection unit 8 outputting the incident light from the light distribution pattern forming unit to an irradiation region in front of the vehicle.
Abstract: A vehicle lamp emits red light from a second light emitting area by lighting a tail/accessory lamp while emitting red light from a first light emitting area during a lighting of a tail lamp. Meanwhile, the vehicle lamp lights out the tail/accessory lamp while emitting orange light from the second light emitting area during a lighting (flickering) of a turn lamp.
Abstract: An optical source unit includes a first optical source for emitting a P-polarized light beam, a first detector for detecting whether the first optical source is normal or abnormal, a second optical source for emitting an S-polarized light beam, a second detector for detecting whether the second optical source is normal or abnormal, and a light beam combining section including a polarization beam splitter for transmitting the P-polarized light beam and reflecting the S-polarized light beam to combine the P-polarized light beam and the S-polarized light beam into an output light beam of the optical source unit.
Abstract: An automotive headlight includes: a light source for emitting light; a polarization beam splitter for receiving a light flux from the light source, and dividing the light flux into a first polarization and a second polarization; a liquid crystal element disposed to receive the first polarization and the second polarization, divided by the polarization beam splitter; a phase shifter disposed on optical axis of one of the first polarization and the second polarization, and aligning polarization axis directions of the first polarization and the second polarization; and an output side polarizer disposed on output side of the liquid crystal element, wherein illumination regions corresponding to respective control electrodes in the liquid crystal element can be controlled to shield light.