US 12,296,748 B2
Light guide for the illumination of a passenger compartment of a motor vehicle
Pierre-Louis Tassy, Bobigny (FR)
Assigned to VALEO VISION, Bobigny (FR)
Appl. No. 18/685,101
Filed by VALEO VISION, Bobigny (FR)
PCT Filed Aug. 2, 2022, PCT No. PCT/EP2022/071606
§ 371(c)(1), (2) Date Feb. 20, 2024,
PCT Pub. No. WO2023/030800, PCT Pub. Date Mar. 9, 2023.
Claims priority of application No. 2109195 (FR), filed on Sep. 2, 2021.
Prior Publication US 2024/0359620 A1, Oct. 31, 2024
Int. Cl. B60Q 3/64 (2017.01); B60Q 3/74 (2017.01); F21V 8/00 (2006.01)
CPC B60Q 3/64 (2017.02) [B60Q 3/74 (2017.02); G02B 6/0038 (2013.01); G02B 6/0068 (2013.01); G02B 6/0073 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A light guide for lighting a motor vehicle passenger compartment, comprising a light entry portion and a light exit portion, the light entry portion comprising at least two light entry faces and the light exit portion comprising at least two light exit faces, this light guide being wherein the light entry portion has at least one slot positioned between two light entry faces, a groove separating two light exit faces extending in the continuation of this slot,
wherein the light guide further comprises a succession of strips, each strip being delimited by a light entry face and at least one light exit face, at least one strip widening from the light entry face toward the light exit face,
wherein the light guide further comprises a plurality of grooves, the grooves extending over at least one third of a thickness of the light exit portion from the light exit face, the thickness being measured between the light exit face and a reflection face of the light exit portion that is opposite to the light exit face, the light exit face being opposite to a reflection face, the reflection face having a decoupling structure, or
wherein the light guide further comprises a plurality of slots that are in a form of parabolic cavities, each parabolic cavity positioned between two light entry faces, or are substantially triangular, each triangular slot having a base positioned closer to the light entry faces than to the light exit faces and an apex facing toward the light exit faces.