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:
Oct. 08, 2024
Filed:
Sep. 22, 2021
Applicant:
GM Global Technology Operations Llc, Detroit, MI (US);
Inventors:
Thomas A. Seder, Fraser, MI (US);
Kai-Han Chang, Madison Heights, MI (US);
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/01 (2006.01); G02B 5/30 (2006.01); G03H 1/00 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0172 (2013.01); G02B 5/3083 (2013.01); G03H 1/0005 (2013.01); G02B 2027/0174 (2013.01); G03H 2001/0088 (2013.01);
Abstract
A head-up display system includes a hologram projector adapted to project a holographic image, a waveguide positioned in front of the hologram projector, wherein the holographic image projected by the hologram projector passes through the waveguide, a glare control prism positioned in front of the waveguide assembly, and a waveplate positioned between the waveguide and the glare control prism, the waveplate adapted to adjust the polarization of the holographic image.