The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 07, 2021
Filed:
Dec. 18, 2015
Hella Kgaa Hueck & Co., Lippstadt, DE;
Covestro Deutschland Ag, Leverkusen, DE;
Martin Muegge, Geseke, DE;
Carsten Hohmann, Warstein, DE;
Rainer Hagen, Leverkusen, DE;
Guenther Walze, Cologne, DE;
Thomas Faecke, Leverkusen, DE;
Hella KGaA Hueck & Co., Lippstadt, DE;
Covestro Deutschland AG, Leverkusen, DE;
Abstract
A lighting device for vehicles, in particular a signal light, with a light source for emitting a light beam and an optical unit associated with the light source for producing a predetermined light function, the optical unit having a holographic element and a lens arranged in the main emission direction in front of the holographic element, the holographic element comprising such a diffraction structure that the light beam emitted from the light source onto the holographic element is varied according to a predetermined illumination pattern such that the holographic light beam lights an illumination surface of the lens to generate the light function.