US 12,241,606 B2
Primary optical element, primary optical assembly, optical assembly, vehicle lamp lighting device and vehicle
Weigang Gong, Shanghai (CN); Zhiping Qiu, Shanghai (CN); He Zhu, Shanghai (CN); and Wenhui Sang, Shanghai (CN)
Assigned to HASCO VISION TECHNOLOGY CO., LTD., Shanghai (CN)
Appl. No. 18/260,147
Filed by HASCO VISION TECHNOLOGY CO., LTD., Shanghai (CN)
PCT Filed Feb. 5, 2021, PCT No. PCT/CN2021/075569
§ 371(c)(1), (2) Date Jun. 30, 2023,
PCT Pub. No. WO2022/165758, PCT Pub. Date Aug. 11, 2022.
Prior Publication US 2024/0068635 A1, Feb. 29, 2024
Int. Cl. F21S 41/24 (2018.01); F21V 14/00 (2018.01); F21V 17/10 (2006.01); F21W 102/13 (2018.01)
CPC F21S 41/24 (2018.01) [F21V 14/006 (2013.01); F21V 17/10 (2013.01); F21W 2102/13 (2018.01)] 20 Claims
OG exemplary drawing
 
1. A primary optical element, comprising a primary optical element main body, wherein the primary optical element main body comprises a light guiding portion and a fusion light-emitting portion which are provided from rear to front, a front end surface of the fusion light-emitting portion is provided as a light-emitting surface, the light guiding portion comprises a plurality of light guiding columns sequentially arranged in a left-right direction, a thickness of the fusion light-emitting portion in an up-down direction is greater than a thickness of the light guiding portion in the up-down direction, and the fusion light-emitting portion is able to fuse light transmitted by the plurality of light guiding columns to the fusion light-emitting portion, and then emit the light by means of the light-emitting surface, a cut-off line structure is formed at a bottom of the light-emitting surface.