US 12,467,601 B2
Surface light guide for a lamp of a motor vehicle and lamp for a motor vehicle
Martin Muegge, Geseke (DE); Alfons Michaelis, Borchen (DE); Christian Smarslik, Muenster (DE); Dietmar Haut, Lippstadt (DE); and Stefan Brueckner, Renningen (DE)
Assigned to HELLA GMBH & CO. KGAA, Lippstadt (DE)
Appl. No. 18/294,165
Filed by HELLA GMBH & CO. KGAA, Lippstadt (DE)
PCT Filed Aug. 2, 2022, PCT No. PCT/EP2022/071686
§ 371(c)(1), (2) Date Feb. 1, 2024,
PCT Pub. No. WO2023/012158, PCT Pub. Date Feb. 9, 2023.
Claims priority of application No. 10 2021 120 001.6 (DE), filed on Aug. 2, 2021.
Prior Publication US 2025/0093009 A1, Mar. 20, 2025
Int. Cl. F21S 43/245 (2018.01); F21S 43/241 (2018.01)
CPC F21S 43/245 (2018.01) [F21S 43/241 (2018.01)] 18 Claims
OG exemplary drawing
 
1. A surface light guide for a light of a motor vehicle, the surface light guide comprising:
a light decoupling section which comprises,
a first flat side,
a second flat side which is arranged opposite to the first flat side,
a light decoupling surface which is arranged on the first flat side, and
a decoupling structure which is arranged on the first flat side or on the second flat side, the decoupling structure comprising a plurality of individual and spaced-apart light decoupling elements, the decoupling structure being configured so that light rays which are coupled in by an illuminant are deflected in the light decoupling section so that deflected light rays are emitted through the light decoupling surface;
a light coupling section which is configured to couple in light rays from the illuminant and to mix the coupled-in light rays; and
a deflection section,
wherein,
the light coupling section is directly or indirectly connected to the light decoupling section,
the light decoupling section is arranged at an angle to the light coupling section, and
the deflection section is arranged between the light decoupling section and the light coupling section.