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. 27, 2022
Filed:
Oct. 27, 2020
Facebook Technologies, Llc, Menlo Park, CA (US);
Babak Amirsolaimani, Redmond, WA (US);
Brian Wheelwright, Sammamish, WA (US);
Daniel Guenther Greif, Redmond, WA (US);
Weichuan Gao, Redmond, WA (US);
Miaomiao Xu, Redmond, WA (US);
Jacques Gollier, Bellevue, WA (US);
Meta Platforms Technologies LLC, Menlo Park, CA (US);
Abstract
A display device includes a relay waveguide and a scanner. The scanner is configured to angularly scan image light for coupling into the waveguide, and includes a scanning reflector and a second reflector disposed between the scanning reflector and an input coupler of the waveguide. The scanning reflector has an aperture for the image light to propagate therethrough toward the second reflector. The second reflector is configured to reflect at least a portion of the image light received through the aperture back toward the scanning reflector and to transmit at least a portion of the image light reflected from the scanning reflector toward the input coupler. The arrangement enables a compact design of the display.