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:
Dec. 07, 2021
Filed:
Jan. 03, 2020
Applicants:
Digilens Inc., Sunnyvale, CA (US);
Rockwell Collins Inc., Cedar Rapids, IA (US);
Inventors:
Jonathan David Waldern, Los Altos Hills, CA (US);
Alastair John Grant, San Jose, CA (US);
Milan Momcilo Popovich, Leicester, GB;
James H. Stanley, Cedar Rapids, IA (US);
Robert D. Brown, Cedar Rapids, IA (US);
Assignees:
DigiLens Inc., Sunnyvale, CA (US);
Rockwell Collins Inc., Cedar Rapids, IA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/34 (2006.01); G02B 5/18 (2006.01); G02B 27/42 (2006.01); G02B 27/01 (2006.01); G02F 1/1334 (2006.01); G02B 5/32 (2006.01); G02B 6/124 (2006.01); F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
G02B 6/34 (2013.01); G02B 5/1819 (2013.01); G02B 5/1823 (2013.01); G02B 5/32 (2013.01); G02B 6/0016 (2013.01); G02B 6/124 (2013.01); G02B 27/0172 (2013.01); G02B 27/4205 (2013.01); G02B 27/4261 (2013.01); G02F 1/13342 (2013.01); G02B 2027/0125 (2013.01);
Abstract
An optical waveguide comprises at least two TIR surface and contains a grating. Input TIR light with a first angular range along a first propagation direction undergoes at least two diffractions at the grating. Each diffraction directs light into a unique TIR angular range along a second propagation direction.