US 12,253,229 B2
Illumination device for vehicles
Michael Schöne, Lippstadt (DE)
Assigned to HELLA GMBH & CO. KGAA, Lippstadt (DE)
Filed by HELLA GMBH & CO. KGAA, Lippstadt (DE)
Filed on Feb. 23, 2024, as Appl. No. 18/585,287.
Application 18/585,287 is a continuation of application No. PCT/EP2022/072896, filed on Aug. 17, 2022.
Claims priority of application No. 102021122451.9 (DE), filed on Aug. 31, 2021.
Prior Publication US 2024/0230049 A1, Jul. 11, 2024
Int. Cl. F21S 41/20 (2018.01); F21S 41/141 (2018.01)
CPC F21S 41/285 (2018.01) [F21S 41/141 (2018.01)] 14 Claims
OG exemplary drawing
 
1. An illumination device for vehicles comprising a plurality of light sources with a lens arranged in front of the light sources in the main emission direction and with an optical element assembly arranged between the light sources and the lens, wherein:
the optical element assembly is configured as an intermediate lens, which comprises a plurality of prisms on a light entry side facing the light sources for collecting the light emitted by the light sources and which, on a light exit side facing away from the light sources, has a plurality of elevations for scattering the light emerging from the intermediate lens,
the lens is configured as a scattering lens, which has a scattering structure or a volume-scattering material on a light entry side facing the intermediate lens or on a light exit side facing away from the intermediate lens, and
the distance between tips of neighboring prisms is in the range from 0.8 mm to 1.5 mm, and the prisms have a depth in the range from 0.8 mm to 1.5 mm.