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. 14, 2021
Filed:
Oct. 09, 2019
Facebook Technologies, Llc, Menlo Park, CA (US);
Weichuan Gao, Redmoond, WA (US);
Brian Wheelwright, Sammamish, WA (US);
Maxwell Parsons, Berkley, CA (US);
Daniel Guenther Greif, Redmond, WA (US);
Scott Charles McEldowney, Redmond, WA (US);
FACEBOOK TECHNOLOGIES, LLC, Menlo Park, CA (US);
Abstract
A scanning projector for a display apparatus includes a first scanning reflector configured to steer a light beam in a first plane, a second scanning reflector configured to steer the light beam received from the first scanning reflector in a second plane, and beam relay optics configured to relay a first pupil defined at the first scanning reflector to a second pupil defined at the second scanning reflector, and to relay the second pupil to an output pupil of the scanning projector. The beam relay optics may include a concave reflector and a polarization beam splitter coupled to a scanning reflector in a triple pass configuration.