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1. WO2022004599 - VEHICLE LIGHT GUIDE AND VEHICLE LAMP

Publication Number WO/2022/004599
Publication Date 06.01.2022
International Application No. PCT/JP2021/024170
International Filing Date 25.06.2021
IPC
F21S 43/14 2018.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
43Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
10characterised by the light source
13characterised by the type of light source
14Light emitting diodes
F21S 43/237 2018.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
43Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
20characterised by refractors, transparent cover plates, light guides or filters
235Light guides
236characterised by the shape of the light guide
237rod-shaped
F21S 43/241 2018.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
43Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
20characterised by refractors, transparent cover plates, light guides or filters
235Light guides
236characterised by the shape of the light guide
241of complex shape
F21S 43/249 2018.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
43Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
20characterised by refractors, transparent cover plates, light guides or filters
235Light guides
249with two or more light sources being coupled into the light guide
F21W 103/10 2018.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V124
103Exterior vehicle lighting devices for signalling purposes
10Position lights
CPC
F21S 43/14
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
43Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
10characterised by the light source
13characterised by the type of light source
14Light emitting diodes [LED]
F21S 43/237
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
43Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
20characterised by refractors, transparent cover plates, light guides or filters
235Light guides
236characterised by the shape of the light guide
237rod-shaped
F21S 43/241
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
43Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
20characterised by refractors, transparent cover plates, light guides or filters
235Light guides
236characterised by the shape of the light guide
241of complex shape
F21S 43/249
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
43Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
20characterised by refractors, transparent cover plates, light guides or filters
235Light guides
249with two or more light sources being coupled into the light guide
F21W 2103/10
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
2103Exterior vehicle lighting devices for signalling purposes
10Position lights
Applicants
  • 市光工業株式会社 ICHIKOH INDUSTRIES, LTD. [JP]/[JP]
Inventors
  • 奥 裕章 OKU Hiroaki
Agents
  • 特許業務法人サカモト・アンド・パートナーズ SAKAMOTO & PARTNERS
Priority Data
2020-11320730.06.2020JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) VEHICLE LIGHT GUIDE AND VEHICLE LAMP
(FR) GUIDE DE LUMIÈRE DE VÉHICULE ET LAMPE DE VÉHICULE
(JA) 車両用導光体及び車両用灯具
Abstract
(EN) To radiate light with uniform color and illuminance in a longitudinal direction. This vehicle light guide is rod-shaped and is disposed at a front portion of a vehicle in a state of being installed in the vehicle. The vehicle light guide includes a base portion that has a curved portion curved rearward from a front face of the vehicle toward a side face at an outer side of the vehicle and that guides light from a light source so as to be emitted from an emission face at a front face side facing forward and sideways of the vehicle, a plurality of prism portions that are arrayed in a longitudinal direction along a back face side as to the emission face of the base portion and that reflect light toward the front face side, and a diffusing portion that is provided positioned in a range including at least the curved portion in the longitudinal direction of the base portion in a strip form following the prism portions on a bottom face side of the prism portions, and that diffuses light.
(FR) L’invention vise à rayonner de la lumière de couleur et d’éclairement uniformes dans une direction longitudinale. Le guide de lumière de véhicule selon la présente invention est en forme de baguette et est disposé au niveau d’une partie avant d’un véhicule dans un état où il est installé dans le véhicule. Le guide de lumière de véhicule inclut une partie de base qui a une partie courbée qui est courbée vers l’arrière depuis une face avant du véhicule vers une face latérale d’un côté extérieur du véhicule et qui guide la lumière émise par une source de lumière de sorte qu’elle soit émise par une face d’émission au niveau d’un côté de face avant tourné vers l’avant et latéralement par rapport au véhicule, une pluralité de parties de prisme qui sont alignées dans une direction longitudinale le long d’un côté de face arrière par rapport à la face d’émission de la partie de base et qui réfléchit la lumière vers le côté de face avant, et une partie de diffusion qui est positionnée dans une étendue incluant au moins la partie incurvée dans la direction longitudinale de la partie de base sous la forme d’un ruban suivant les parties de prisme sur un côté de face inférieure des parties de prisme, et qui diffuse la lumière.
(JA) 長手方向において色及び照度が均一な光を照射する。 車両用導光体は、棒状であり、車両搭載状態における車両の前部に配置され、車両の前面から車両の外側の側面にかけて後方に湾曲した湾曲部を有し、光源からの光を導光して車両の前方及び側方に面した正面側の出射面から出射する基部と、基部のうち出射面に対して背面側に長手方向に沿って配置され、光を正面側に反射する複数のプリズム部と、基部のうち長手方向の少なくとも湾曲部を含む範囲に配置され、プリズム部の底面側に当該プリズム部に沿って帯状に設けられ、光を拡散する拡散部とを備える。
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