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:
Jan. 12, 2021
Filed:
Jun. 11, 2019
Facebook Technologies, Llc, Menlo Park, CA (US);
Yun-Han Lee, Menlo Park, CA (US);
Mengfei Wang, Menlo Park, CA (US);
Junren Wang, Menlo Park, CA (US);
Lu Lu, Menlo Park, CA (US);
Robin Sharma, Menlo Park, CA (US);
Gregory Olegovic Andreev, Menlo Park, CA (US);
Garam Young, Menlo Park, CA (US);
Andrew John Ouderkirk, Menlo Park, CA (US);
Babak Amirsolaimani, Menlo Park, CA (US);
Fenglin Peng, Menlo Park, PA (US);
Barry David Silverstein, Menlo Park, CA (US);
FACEBOOK TECHNOLOGIES, LLC, Menlo Park, CA (US);
Abstract
An optical system includes a grating including at least one substrate and a grating structure coupled to the at least one substrate. The grating structure is configured to diffract a first light having an incidence angle within a predetermined range. The optical system also includes a polarizer configured to transmit the first light diffracted by the grating structure and block a second light reflected by a surface of the at least one substrate.