Patent · US Active

Lighting device for vehicles

US12338970B2 · kind B2 · utility

0Cited by

0References

20Claims

0Family size

Assignee

Hella GmbH & Co. KGaA · DE

Inventors

Lukas Hiller · Lippstadt, DE
Carsten Hohmann · Warstein, DE
Martin Mügge · Geseke, DE

Key dates

Filing date	Apr 16, 2024
Grant date	Jun 24, 2025
Priority date	—
Expiry date	Apr 16, 2044

Classification

Technology area (CPC G)Physics
CPC primaryG03H2250/42
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A lighting device for vehicles includes a light source unit containing numerous light sources, and includes a hologram unit containing numerous hologram segments for generating a predefined light distribution. The hologram segments form reflection hologram segments behind and/or next to the light source unit in the main beam direction (H) of the lighting device, such that light emitted from the light source strikes the reflection hologram segment at an acute angle φ). Holographic diffraction information is stored in the reflection hologram segments for generating a signal light distribution. The light source unit contains just one printed circuit board or one printed circuit board substrate.

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