US 11,927,318 B2
Headlamp optical element with III-region light shape forming structure
He Zhu, Shanghai (CN); Zhiping Qiu, Shanghai (CN); and Wenhui Sang, Shanghai (CN)
Assigned to HASCO VISION TECHNOLOGY CO., LTD., Shanghai (CN)
Appl. No. 17/791,950
Filed by HASCO VISION TECHNOLOGY CO., LTD., Shanghai (CN)
PCT Filed Jan. 13, 2021, PCT No. PCT/CN2021/071508
§ 371(c)(1), (2) Date Jul. 11, 2022,
PCT Pub. No. WO2021/147731, PCT Pub. Date Jul. 29, 2021.
Claims priority of application No. 202010067744.0 (CN), filed on Jan. 20, 2020.
Prior Publication US 2023/0043186 A1, Feb. 9, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. F21S 41/20 (2018.01); F21S 41/37 (2018.01); F21W 102/13 (2018.01)
CPC F21S 41/20 (2018.01) [F21S 41/37 (2018.01); F21W 2102/13 (2018.01)] 22 Claims
OG exemplary drawing
 
1. A headlamp optical element, comprising a light collecting portion, a first light emitting portion and a reflecting portion which are sequentially and integrally connected along the light emitting direction and the light collecting portion is able to converge incident light and emit the light via the first light emitting portion, wherein
the rear end of the reflecting portion is connected with the lower portion of the first light emitting portion, and the front end of the reflecting portion is provided with a lower beam cut-off line structure used for forming a lower beam bright-dark cut-off line;
a light-emitting surface of the first light-emitting portion is formed of multiple step surfaces with segment differences; and
the lower portion of the light collecting portion is provided with a III-region light shape forming structure, and the III-region light shape forming structure is able to form a lower beam III-region light shape.