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. 20, 2016
Filed:
Oct. 08, 2013
Karen Asatryan, Quebec, CA;
Tigran Galstian, Quebec, CA;
Aram Bagramyan, Quebec, CA;
Vladimir Presniakov, Quebec, CA;
Amir Tork, Quebec, CA;
Armen Zohrabyan, Quebec, CA;
Peter P. Clark, Boxborough, MA (US);
Karen Asatryan, Quebec, CA;
Tigran Galstian, Quebec, CA;
Aram Bagramyan, Quebec, CA;
Vladimir Presniakov, Quebec, CA;
Amir Tork, Quebec, CA;
Armen Zohrabyan, Quebec, CA;
Peter P. Clark, Boxborough, MA (US);
LENSVECTOR, INC., Sunnyvale, CA (US);
Abstract
A liquid crystal optical device has a layered structure with split liquid crystal layers having alignment surfaces that define in a liquid crystal material pre-tilt angles of opposite signs. Four liquid crystal layers can provide two directions of linear polarization. In the case of a lens, the device can be a gradient index lens, and the alignment surfaces can have a spatially uniform pre-tilt.