US 12,331,904 B2
Lighting device for vehicles
Nils Barner, Lippstadt (DE); Hubert Flottmeyer, Wünnenberg (DE); and Marcus Gattwinkel, Lippstadt (DE)
Assigned to Hella GmbH & Co. KGaA, Lippstadt (DE)
Filed by Hella GmbH & Co. KGaA, Lippstadt (DE)
Filed on Jun. 18, 2024, as Appl. No. 18/746,257.
Claims priority of application No. 102023116195.4 (DE), filed on Jun. 21, 2023.
Prior Publication US 2024/0426452 A1, Dec. 26, 2024
Int. Cl. F21S 43/241 (2018.01); B60Q 3/62 (2017.01); B60Q 3/64 (2017.01); F21S 43/247 (2018.01); F21V 8/00 (2006.01)
CPC F21S 43/241 (2018.01) [B60Q 3/62 (2017.02); B60Q 3/64 (2017.02); F21S 43/247 (2018.01); G02B 6/0001 (2013.01); B60Q 2400/30 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A lighting device for vehicles, the lighting device comprising:
a light source; and
an optical waveguide including:
a first optical waveguide segment that has a light entry surface for light from the light source,
a second optical waveguide segment that has a light emission surface for the light, wherein the emission surface has an optical structure, and
a reflection segment between the first optical waveguide segment and second optical waveguide segment, the reflection segment having a reflective surface that reflects the light entering the optical waveguide toward the second optical waveguide segment;
wherein the light emission surface of the optical waveguide has an edge without an optical structure,
wherein the reflection surface of the reflection segment has diffusion elements at a region where part of the light entering the optical waveguide is deflected toward the second optical waveguide segment, and is emitted at the edge of the light emission surface in the second optical waveguide segment.