Title:
LIGHT GUIDE DEVICE, LIGHT SOURCE DEVICE, DISPLAY SYSTEM, AND TRANSPORTATION VEHICLE
Document Type and Number:
WIPO Patent Application WO/2023/025149
Kind Code:
A1
Abstract:
A light guide device, a light source device, a display system, and a transportation vehicle. The light guide device comprises a light guide structure (100) comprising an optical out-coupling portion (101), wherein the optical out-coupling portion (101) is configured to couple out light propagated in the light guide structure (100). The light guide structure (100) comprises a first light guide element (110) and a second light guide element (120), wherein light entering the light guide structure (100) is transmitted to the second light guide element (120) by means of the first light guide element (110), and at least part of the optical out-coupling portion (101) is located on the second light guide element (120). The first light guide element (110) comprises a medium (111) configured for propagating light, and first reflection structures (112) located on at least two sides of the medium (111), wherein the first reflection structure (112) is configured to reflect, at least once, light incident to the first light guide element (110) so as to propagate the light to the second light guide element (120); and/or the first light guide element (110) is configured to fully reflect and propagate the light incident to the first light guide element (110) so as to propagate the light to the second light guide element (120).
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Inventors:
WU HUIJUN (CN)
XU JUNFENG (CN)
FANG TAO (CN)
XU JUNFENG (CN)
FANG TAO (CN)
Application Number:
PCT/CN2022/114263
Publication Date:
March 02, 2023
Filing Date:
August 23, 2022
Export Citation:
Assignee:
FUTURUS TECH CO LTD (CN)
International Classes:
G02B6/04
Foreign References:
| CN216817084U | 2022-06-24 | |||
| CN216748171U | 2022-06-14 | |||
| CN107533255A | 2018-01-02 | |||
| CN110612470A | 2019-12-24 | |||
| CN103411160A | 2013-11-27 | |||
| CN104570483A | 2015-04-29 | |||
| US20070274095A1 | 2007-11-29 | |||
| CN206161958U | 2017-05-10 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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