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:
Sep. 03, 2019
Filed:
Nov. 21, 2016
Applicant:
Avegant Corp., Belmont, CA (US);
Inventors:
Allan Thomas Evans, San Francisco, CA (US);
Andrew John Gross, Redwood City, CA (US);
D. Scott Dewald, Dallas, TX (US);
Assignee:
Avegant Corp., San Mateo, CA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/03 (2006.01); G02F 1/07 (2006.01); G02B 27/28 (2006.01); G02F 1/01 (2006.01); G02B 5/30 (2006.01);
U.S. Cl.
CPC ...
G02B 27/283 (2013.01); G02B 5/3058 (2013.01); G02B 5/3083 (2013.01); G02B 27/286 (2013.01); G02F 1/0136 (2013.01); G02F 2201/17 (2013.01);
Abstract
A system to adjust light path length using a digital light path length modulator. The digital light path modulator includes an optical path length extender (OPLE) and a polarization modulator. The OPLE has two light paths having different path lengths, so light with a first polarization is directed through a first light path, and the light with a second polarization is directed through a second light path through the OPLE.