Patent · US Active

Lighting apparatus for vehicles

US10955104B2 · kind B2 · utility

0Cited by

9References

10Claims

0Family size

Assignee

Hella GmbH & Co. KGaA · DE

Inventors

Edwin N. Kamau · Bonn, DE
Daniela Karthaus · Lippstadt, DE
Alfons Michaelis · Borchen, DE
Martin Muegge · Geseke, DE

Key dates

Filing date	Mar 26, 2020
Grant date	Mar 23, 2021
Priority date	—
Expiry date	Mar 26, 2040

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF21S43/26
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A lighting apparatus for vehicles with a housing sealed by a transparent covering panel, containing a light source unit and an optical unit for producing a predetermined light function, wherein the optical unit has a hologram element and/or diffractive element in which diffraction information for producing the light function is contained, wherein optics are disposed downstream of the hologram element and/or the diffractive element in the light beam path, so that light of different orders of diffraction emerging from the hologram element and/or the diffractive element produce different light functions.

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