Title:
OPTICAL DEVICE FOR VEHICLE LAMP, VEHICLE LIGHTING DEVICE, AND VEHICLE
Document Type and Number:
WIPO Patent Application WO/2022/100057
Kind Code:
A1
Abstract:
An optical device for a vehicle lamp, comprising a light guide part integrally formed by a first light guide element (1) and a second light guide element (2). The first light guide element (1) and the second light guide element (2) in the light guide part are arranged in parallel. A material dividing surface (3) is formed between the first light guide element (1) and the second light guide element (2). A cut-off line structure (24) is provided in the second light guide element (2). The refractive index of the first light guide element (1) is greater than the refractive index of the second light guide element (2), such that when light rays transmitted in the first light guide element (1) is irradiated onto the material dividing surface (3), a total reflection is formed at the material dividing surface (3), and when light rays transmitted in the second light guide element (2) is irradiated onto the material dividing surface (3), the light rays can pass through the material dividing surface (3) to enter the first light guide element (1). The present optical device for a vehicle lamp is compact in structure, and the direction of light rays in different light channels can be controlled. A vehicle lighting device and a vehicle are also disclosed.
Inventors:
ZHU HE (CN)
QIU ZHIPING (CN)
SANG WENHUI (CN)
QIU ZHIPING (CN)
SANG WENHUI (CN)
Application Number:
PCT/CN2021/095811
Publication Date:
May 19, 2022
Filing Date:
May 25, 2021
Export Citation:
Assignee:
HASCO VISION TECH CO LTD (CN)
International Classes:
F21S41/24; F21W102/135; F21W107/10
Foreign References:
| CN213777579U | 2021-07-23 | |||
| CN112944276A | 2021-06-11 | |||
| CN109642715A | 2019-04-16 | |||
| DE102007052696A1 | 2008-07-17 | |||
| CN210197182U | 2020-03-27 | |||
| CN108758547A | 2018-11-06 |
Attorney, Agent or Firm:
RUNPING & PARTNERS (CN)
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