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. 24, 2020
Filed:
Mar. 23, 2018
Applicant:
Google Llc, Mountain View, CA (US);
Inventors:
Assignee:
GOOGLE LLC, Mountain View, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/02 (2006.01); G02B 5/30 (2006.01); G02B 27/48 (2006.01); G02B 26/10 (2006.01); G02B 27/28 (2006.01); G03B 21/20 (2006.01); G02B 27/60 (2006.01); G02B 3/00 (2006.01);
U.S. Cl.
CPC ...
G02B 5/0294 (2013.01); G02B 5/3058 (2013.01); G02B 5/3083 (2013.01); G02B 26/105 (2013.01); G02B 27/286 (2013.01); G02B 27/48 (2013.01); G03B 21/208 (2013.01); G03B 21/2073 (2013.01); G02B 3/0056 (2013.01); G02B 27/60 (2013.01);
Abstract
Disclosed herein are devices and techniques related to optical diffusers and particularly, diffusers to reduce moiré patterns in a projected image. The device may comprise an array of micro-focal elements or reflectors and a light polarization grid. The light polarization grid configured to change a polarization between portions of a light beam and the micro-focal elements of reflectors to diffuse the light beam such that portions of the light beam having a difference in polarization may meet at a point.