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:
Jul. 01, 2025
Filed:
Mar. 22, 2022
GM Global Technology Operations Llc, Detroit, MI (US);
Kai-Han Chang, Madison Heights, MI (US);
Thomas A. Seder, Fraser, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
A glare mitigation module for a head-up display system is configured to transmit display light emitted from an illumination device therethrough. The glare mitigation module comprises an input surface through which the display light from the illumination device enters the glare mitigation module and an output surface through which the display light from the illumination device exits the glare mitigation module in a display direction. The glare mitigation module further comprises a diffractive optical element comprising a plurality of layers stacked successively between the input and output surfaces, with the plurality of layers arranged to transmit the display light of the illumination device therethrough and to diffract an external light that enters the glare mitigation module through the output surface. The diffractive optical element is arranged to diffract the external light in a diffracted direction away from eyes of an occupant.