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. 10, 2020
Filed:
Feb. 07, 2019
Applicant:
Leia Inc., Menlo Park, CA (US);
Inventors:
David A. Fattal, Mountain View, CA (US);
Zhen Peng, Foster City, CA (US);
Charles M. Santori, Palo Alto, CA (US);
Assignee:
LEIA INC., Menlo Park, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 30/27 (2020.01); F21V 8/00 (2006.01); G02F 1/13357 (2006.01); G02B 5/18 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0038 (2013.01); G02B 6/005 (2013.01); G02B 6/0036 (2013.01); G02B 30/27 (2020.01); G02F 1/133615 (2013.01); G02B 5/1861 (2013.01); G02B 5/1866 (2013.01);
Abstract
Multibeam diffraction grating-based backlighting includes a light guide and a multibeam diffraction grating at a surface of the light guide. The light guide is configured to guide light from a light source. The multibeam diffraction grating is configured to couple out a portion of the guided light using diffractive coupling and to direct the diffractively coupled out portion away from the light guide as a plurality of light beams with different principal angular directions having directions corresponding to view directions of a multiview display.