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. 17, 2023
Filed:
Mar. 29, 2021
Applicant:
Meta Platforms Technologies, Llc, Menlo Park, CA (US);
Inventors:
Giuseppe Calafiore, Woodinville, WA (US);
Austin Lane, Bellevue, WA (US);
Matthew E. Colburn, Woodinville, WA (US);
Assignee:
META PLATFORMS TECHNOLOGIES, LLC, Menlo Park, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/18 (2006.01); G02B 6/34 (2006.01); G03F 7/00 (2006.01);
U.S. Cl.
CPC ...
G02B 5/1857 (2013.01); G02B 6/34 (2013.01); G03F 7/0005 (2013.01);
Abstract
An optical device with a variable index of refraction is formed by exposing a film to an energy gradient. The optical device has angular selectivity. The optical device can be used as an output coupler for a waveguide used in a virtual-reality and/or augmented-reality apparatus.