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. 11, 2022
Filed:
Oct. 29, 2019
Meta Platforms Technologies, Llc, Menlo Park, CA (US);
Yun-Han Lee, Menlo Park, CA (US);
Lu Lu, Menlo Park, CA (US);
Mengfei Wang, Menlo Park, CA (US);
Fenglin Peng, Menlo Park, CA (US);
Junren Wang, Menlo Park, CA (US);
Oleg Yaroshchuk, Menlo Park, CA (US);
Yingfei Jiang, Menlo Park, CA (US);
Babak Amirsolaimani, Menlo Park, CA (US);
Scott Charles Mceldowney, Menlo Park, CA (US);
META PLATFORMS TECHNOLOGIES, LLC, Menlo Park, CA (US);
Abstract
An optical device includes a display configured to generate an image light; and a waveguide optically coupled with the display and configured to guide the image light to an exit pupil of the optical device. The waveguide includes an in-coupling element configured to couple the image light into the waveguide, and an out-coupling element configured to decouple the image light out of the waveguide. The out-coupling element includes a grating having a diffraction efficiency gradient along a predetermined direction at a plane of the grating.