US 12,276,393 B2
Lighting device for a motor vehicle
Bernd Fischer, Altenbeken (DE); Carsten Hohmann, Warstein (DE); Marc Kaup, Paderborn (DE); and Martin Mügge, Geseke (DE)
Assigned to Hella GmbH & Co. KGaA, Lippstadt (DE)
Filed by Hella GmbH & Co. KGaA, Lippstadt (DE)
Filed on May 21, 2024, as Appl. No. 18/669,863.
Claims priority of application No. 102023113254.7 (DE), filed on May 22, 2023.
Prior Publication US 2024/0392943 A1, Nov. 28, 2024
Int. Cl. F21S 43/20 (2018.01); F21S 41/143 (2018.01); F21S 41/151 (2018.01); F21S 41/27 (2018.01); F21S 43/14 (2018.01)
CPC F21S 43/26231 (2024.05) [F21S 41/143 (2018.01); F21S 41/151 (2018.01); F21S 41/27 (2018.01); F21S 43/14 (2018.01)] 18 Claims
OG exemplary drawing
 
1. A lighting device for a motor vehicle, the lighting device comprising:
a plurality of light sources that emit light when the lighting device is on;
a collimator that has a plurality of collimator lenses, each of which has an entry surface and an exit surface through which the light from the light sources passes successively;
projection optics that includes:
a first transparent substrate with an entry surface and an exit surface, and
a second transparent substrate with an entry surface and an exit surface,
wherein there is at least one array of cylindrical lenses on the entry surface and/or exit surface of the first substrate,
wherein there is at least one array of cylindrical lenses on the entry surface and/or exit surface of the second substrate,
wherein light exiting the collimator first passes through the at least one array of cylindrical lenses on the first substrate and then through the at least one array of cylindrical lenses on the second substrate; and
wherein the projection optics include a first array of cylindrical lenses on the first substrate, a cylinder axes of which extends in a first direction (X-axis), which is horizontal when the lighting device is installed in a vehicle.