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:
Nov. 23, 2021
Filed:
Sep. 09, 2019
Applicant:
Facebook Technologies, Llc, Menlo Park, CA (US);
Inventors:
Oleg Yaroshchuk, Menlo Park, CA (US);
Barry David Silverstein, Menlo Park, CA (US);
Alireza Moheghi, Menlo Park, CA (US);
Assignee:
FACEBOOK TECHNOLOGIES, LLC, Menlo Park, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 27/01 (2006.01); G02B 27/28 (2006.01); G06T 19/00 (2011.01); G02B 30/25 (2020.01);
U.S. Cl.
CPC ...
G02B 27/0172 (2013.01); G02B 27/0176 (2013.01); G02B 27/286 (2013.01); G02B 30/25 (2020.01); G06T 19/006 (2013.01); G02B 2027/0178 (2013.01);
Abstract
A method to suppress a rainbow effect and an optical device thereof are provided. The method includes receiving, by a dimming element, a light from a real world. The method further includes attenuating, by the dimming element, an intensity of the light with a degree of attenuation growing with an incidence angle. The dimming element includes a liquid crystal (LC) dimming element.