US 12,013,092 B2
Automotive lamp optical element and automotive headlamp
He Zhu, Shanghai (CN); Dapan Zhang, Shanghai (CN); Zhiping Qiu, Shanghai (CN); and Wenhui Sang, Shanghai (CN)
Assigned to HASCO VISION TECHNOLOGY CO., LTD., Shanghai (CN)
Appl. No. 17/596,007
Filed by HASCO VISION TECHNOLOGY CO., LTD., Shanghai (CN)
PCT Filed Jan. 8, 2020, PCT No. PCT/CN2020/070935
§ 371(c)(1), (2) Date Dec. 2, 2021,
PCT Pub. No. WO2020/244229, PCT Pub. Date Dec. 10, 2020.
Claims priority of application No. 201910488336.X (CN), filed on Jun. 5, 2019; application No. 201920859938.7 (CN), filed on Jun. 5, 2019; application No. 201910730411.9 (CN), filed on Aug. 8, 2019; and application No. 201921372161.8 (CN), filed on Aug. 22, 2019.
Prior Publication US 2022/0316676 A1, Oct. 6, 2022
Int. Cl. F21S 41/37 (2018.01); B60Q 1/04 (2006.01); B60Q 1/068 (2006.01); B60Q 1/14 (2006.01); F21S 41/143 (2018.01); F21S 41/153 (2018.01); F21S 41/19 (2018.01); F21S 41/20 (2018.01); F21S 41/24 (2018.01); F21S 41/29 (2018.01); F21S 41/43 (2018.01); F21S 45/47 (2018.01); F21W 102/20 (2018.01); F21W 107/10 (2018.01)
CPC F21S 41/192 (2018.01) [B60Q 1/0408 (2013.01); B60Q 1/0686 (2013.01); B60Q 1/1423 (2013.01); F21S 41/143 (2018.01); F21S 41/153 (2018.01); F21S 41/20 (2018.01); F21S 41/24 (2018.01); F21S 41/295 (2018.01); F21S 41/37 (2018.01); F21S 41/43 (2018.01); F21S 45/47 (2018.01); F21W 2102/20 (2018.01); F21W 2107/10 (2018.01)] 15 Claims
OG exemplary drawing
 
1. An automotive lamp optical element, comprising:
a light-incident portion;
a light-passing portion; and
a light-emitting portion,
wherein the light-incident portion, the light-passing portion and the light-emitting portion are sequentially connected and integrally formed, the light-incident portion is configured to focus and emit light from a light source into the light-passing portion, an area of a longitudinal section of the light-passing portion gradually increases in an optical axis direction, and the light-emitting portion protrudes in a direction facing away from the light-incident portion and is configured to refract light emitted through the light-passing portion, wherein the longitudinal section of the light-passing portion is a section formed by a plane perpendicular to an optical axis cutting through the light-passing portion,
wherein the light-emitting portion includes a first light-emitting portion and a second light-emitting portion, the first light-emitting portion and the second light-emitting portion are sequentially connected and integrally formed, the first light-emitting portion is connected to the light-passing portion, and an end surface of the second light-emitting portion facing away from the first light-emitting portion serves as a light-emitting surface and is a curved surface;
wherein four side surfaces of the first light-emitting portion each are an inclined surface, a longitudinal section of the first light-emitting portion perpendicular to the optical axis has a rectangular shape, and an area of the longitudinal section of the first light-emitting portion gradually decreases in the optical axis direction, and wherein the longitudinal section of the first light-emitting portion is a section formed by a plane perpendicular to the optical axis cutting through the first light-emitting portion.