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1. WO2022004287 - VEHICLE LAMP FITTING

Publication Number WO/2022/004287
Publication Date 06.01.2022
International Application No. PCT/JP2021/021606
International Filing Date 07.06.2021
IPC
F21Y 115/10 2016.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V124
115Light-generating elements of semiconductor light sources
10Light-emitting diodes
F21S 2/00 2016.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
2Systems of lighting devices, not provided for in main groups F21S4/-F21S10/113
F21S 43/239 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
239plate-shaped
F21W 103/20 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
20Direction indicator lights
CPC
F21S 2/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
2Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
F21S 43/239
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
239plate-shaped
F21W 2103/20
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
20Direction indicator lights
F21Y 2115/10
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
2115Light-generating elements of semiconductor light sources
10Light-emitting diodes [LED]
Applicants
  • 株式会社小糸製作所 KOITO MANUFACTURING CO.,LTD. [JP]/[JP]
Inventors
  • 鈴木 健太 SUZUKI, Kenta
  • 寺尾 和真 TERAO, Kazuma
Agents
  • 岩田 雅信 IWATA, Masanobu
  • 中川 裕人 NAKAGAWA, Hiroto
Priority Data
2020-11209129.06.2020JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) VEHICLE LAMP FITTING
(FR) FIXATION DE PHARE DE VÉHICULE
(JA) 車輌用灯具
Abstract
(EN) This vehicle lamp fitting is provided with a light source which emits light, and an inner lens upon which the light emitted from the light source is incident, and which emits the incident light, wherein: a space which is asymmetrically shaped in the left-right direction is formed inside the inner lens; the surface that forms the space in the inner lens is formed as a space-forming surface; and at least a portion of the light emitted from the light source is internally reflected at the space-forming surface. As a result, since at least a portion of the light emitted from the light source is internally reflected at the space-forming surface forming the space that is asymmetrically shaped in the left-right direction, a uniform light illumination state can be ensured regardless of the shape and dimensions of the vehicle lamp fitting.
(FR) Cette fixation de phare de véhicule est pourvue d'une source de lumière qui émet de la lumière, et d'une lentille interne sur laquelle la lumière émise par la source de lumière est incidente, et qui émet la lumière incidente : un espace qui est formé de manière asymétrique dans la direction gauche-droite est formé à l'intérieur de la lentille interne ; la surface qui forme l'espace dans la lentille interne est formée en tant que surface de formation d'espace ; et au moins une partie de la lumière émise par la source de lumière est réfléchie à l'intérieur au niveau de la surface de formation d'espace. Il en résulte, étant donné qu'au moins une partie de la lumière émise par la source de lumière est réfléchie à l'intérieur au niveau de la surface de formation d'espace formant l'espace qui est formé de manière asymétrique dans la direction gauche-droite, qu'un état d'éclairage de lumière uniforme peut être assuré indépendamment de la forme et des dimensions de la fixation de phare de véhicule.
(JA) 光を出射する光源と、光源から出射される光が入射され入射された光を出射するインナーレンズとを備え、インナーレンズの内部には左右方向において非対称の形状の空間が形成され、インナーレンズにおける空間を形成する面が空間形成面として形成され、光源から出射される光の少なくとも一部が空間形成面で内面反射される。これにより、左右方向において非対称の形状の空間を形成する空間形成面で光源から出射される光の少なくとも一部が内面反射されるため、車輌用灯具の形状や寸法に拘わらず光の均一な照射状態を確保することができる。
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