Patent · US Active

Lighting device for a motor vehicle

US12276393B2 · kind B2 · utility

0Cited by

0References

18Claims

0Family size

Assignee

Hella GmbH & Co. KGaA · DE

Inventors

Bernd Fischer · Bräunlingen, DE
Carsten Hohmann · Warstein, DE
Marc Kaup · Paderborn, DE
Martin Mügge · Geseke, DE

Key dates

Filing date	May 21, 2024
Grant date	Apr 15, 2025
Priority date	—
Expiry date	May 21, 2044

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF21W2103/55
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A lighting device for a motor vehicle includes numerous light sources and a collimator with numerous collimator lenses. Each collimator lens has an entry surface and an exit surface through which light from the light sources passes successively. Projection optics include a first and second transparent substrates, each with an entry surface and an exit surface. At least one array of cylindrical lenses are on the entry and/or exit surface of the first and second substrates. 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. The projection optics include a first array of cylindrical lenses on the first substrate, the cylinder axes of which extend in a first direction, which is horizontal when the lighting device is installed in a vehicle.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.