Title:
LIGHT GUIDE DEVICE AND LIGHT EMITTING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/115755
Kind Code:
A1
Abstract:
A light guide device, comprising: a light source (1) and a light guide plate (2). The bottom end of the light guide plate (2) facing the light source (1) is provided with a light homogenizing structure (3), and the light homogenizing structure (3) is fixedly connected to the light guide plate (2). The light guide plate (2) comprises a body (21), a first inclined portion (22) and a second inclined portion (23). The first inclined portion (22) and the second inclined portion (23) are respectively located on the left and right sides of the body (21), the first inclined portion (22) and the second inclined portion (23) are both fixedly connected to the body (21), and the first inclined portion (22) and the second inclined portion (23) are both higher than the top of the body (21). The light homogenizing structure (3) comprises a first light homogenizing portion (31), a second light homogenizing portion (32) and a third light homogenizing portion (33). The first light homogenizing portion (31) and the third light homogenizing portion (33) are respectively located on the left and right sides of the second light homogenizing portion (32), and the first light homogenizing portion (31) and the third light homogenizing portion (33) are both fixedly connected to the second light homogenizing portion (32). The first light homogenizing portion (31) is used for scattering light emitted by the light source (1) to the first inclined portion (22), the third light homogenizing portion (33) is used for scattering light emitted by the light source (1) to the second inclined portion (23), and the second light homogenizing portion (32) is used for scattering the light emitted by the light source (1) to the body (21). By using the light guide device, the light guide plate (2) can be uniformly lit.
Inventors:
WANG HUI (CN)
ZHU CAIPING (CN)
SHI HONGJIAN (CN)
WANG SIQING (CN)
ZHUO XIAOMIN (CN)
ZHU CAIPING (CN)
SHI HONGJIAN (CN)
WANG SIQING (CN)
ZHUO XIAOMIN (CN)
Application Number:
PCT/CN2022/085726
Publication Date:
June 29, 2023
Filing Date:
April 08, 2022
Export Citation:
Assignee:
CHANGZHOU XINGYU AUTOMOTIVE LIGHTING SYSTEMS CO LTD (CN)
International Classes:
F21S41/24; F21S2/00
Foreign References:
| JP2013165044A | 2013-08-22 | |||
| JPH10173870A | 1998-06-26 | |||
| JP2006301518A | 2006-11-02 | |||
| JP2014182939A | 2014-09-29 | |||
| CN103511911A | 2014-01-15 | |||
| JP2009152152A | 2009-07-09 | |||
| CN208107969U | 2018-11-16 | |||
| CN110319419A | 2019-10-11 |
Other References:
See also references of EP 4224056A4
Attorney, Agent or Firm:
NANJING DOYES INTELLECTUAL PROPERTY CO., LTD. (CN)
Download PDF: