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. 09, 2025
Filed:
Dec. 14, 2023
Applicant:
Université Laval, Québec, CA;
Inventor:
Tigran Galstian, Québec, CA;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1335 (2006.01); G02B 3/08 (2006.01); G02F 1/1343 (2006.01); G02F 1/29 (2006.01);
U.S. Cl.
CPC ...
G02F 1/133526 (2013.01); G02B 3/08 (2013.01); G02F 1/134309 (2013.01); G02F 1/13439 (2013.01); G02F 1/294 (2021.01);
Abstract
A liquid crystal gradient index device has two opposed substrates containing liquid crystal, a plurality of linear serpentine electrode sections forming a first arrangement on a first one of the substrates, and an opposed electrode on a second one of the substrates. The first arrangement comprises contact points for each serpentine electrode section each operable to receive a driving signal for imparting an electric field profile to form a portion of a linear Fresnel lenslet within the liquid crystal. An improved gradient index Fresnel lens is provided.