US 12,442,506 B2
Light guide for a lighting device of a motor vehicle, lighting device and motor vehicle
Zebin Ni, Foshan (CN); Xingang-steven Shi, Foshan (CN); and Kunyi Lin, Foshan (CN)
Assigned to Valeo Vision, Bobigny (FR)
Appl. No. 18/725,173
Filed by VALEO VISION, Bobigny (FR)
PCT Filed Dec. 21, 2022, PCT No. PCT/EP2022/087257
§ 371(c)(1), (2) Date Jun. 28, 2024,
PCT Pub. No. WO2023/126276, PCT Pub. Date Jul. 6, 2023.
Claims priority of application No. 202123383993.X (CN), filed on Dec. 30, 2021.
Prior Publication US 2025/0109833 A1, Apr. 3, 2025
Int. Cl. F21S 43/20 (2018.01); F21S 43/14 (2018.01); F21S 43/31 (2018.01); F21S 43/40 (2018.01); F21Y 115/10 (2016.01)
CPC F21S 43/26231 (2024.05) [F21S 43/14 (2018.01); F21S 43/31 (2018.01); F21S 43/40 (2018.01); F21Y 2115/10 (2016.08)] 7 Claims
OG exemplary drawing
 
1. A collimator, comprising:
a light incident surface configured to allow a light ray from a light source to enter the collimator through the light incident surface;
a light emitting surface configured to emit a light ray that enters the collimator through the light incident surface and is collimated by the collimator; and
a light distribution portion
wherein the light distribution portion includes a first reflecting surface and a second reflecting surface, wherein the first reflecting surface is configured to reflect a light ray passing through the light incident surface into the collimator to the second reflecting surface, with the second reflecting surface including light modulation regions, the light modulation regions being configured to redistribute the emitting angle of a light ray entering the light modulation region and include a pillow-shaped optical surface with an angle of inclination relative to the main plane of the second reflecting surface.