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:
Mar. 21, 2017
Filed:
Sep. 11, 2015
Applicant:
Thorlabs, Inc., Newton, NJ (US);
Inventors:
Assignee:
Thorlabs, Inc., Newton, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/28 (2006.01); B05D 3/00 (2006.01); B05D 3/06 (2006.01); G02B 5/30 (2006.01); B05D 5/06 (2006.01);
U.S. Cl.
CPC ...
G02B 27/286 (2013.01); G02B 5/3016 (2013.01); G02B 5/3083 (2013.01);
Abstract
A depolarizer, including: a photoalignment layer deposited on the substrate; and a birefringent layer deposited on the photoalignment layer; wherein the photoalignment layer includes a plurality of segments, each segment with a different fast axis orientation and a different pretilt angle, such that each segment of the birefringent layer over the corresponding segment of the photoalignment layer has a different fast axis angle and a different birefringent value.