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:
May. 24, 2022
Filed:
Jun. 27, 2019
Applicant:
Carl Zeiss Jena Gmbh, Jena, DE;
Inventor:
Petr Vojtisek, Jena, DE;
Assignee:
Carl Zeiss Jena GmbH, Jena, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/32 (2006.01); F21S 43/20 (2018.01); F21S 43/235 (2018.01); G02B 5/18 (2006.01); F21V 8/00 (2006.01); G02B 27/42 (2006.01);
U.S. Cl.
CPC ...
F21S 43/26 (2018.01); F21S 43/235 (2018.01); G02B 5/18 (2013.01); G02B 5/32 (2013.01); G02B 6/005 (2013.01); G02B 6/0026 (2013.01); G02B 27/4272 (2013.01);
Abstract
The invention relates to a lighting device for motor vehicles. Said lighting device comprises a primary hologram for providing a lighting function when the primary hologram is illuminated with illumination light. The illumination light is directed towards the primary hologram via a secondary hologram system which comprises a coupling-in hologram, a waveguide substrate and a coupling-out hologram.