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:
Jul. 10, 2018
Filed:
Dec. 03, 2013
Essilor International (Compagnie Generale D'optique), Charenton-le-Pont, FR;
Nikon Corporation, Tokyo, JP;
Mathieu Feuillade, Tokyo, JP;
Alain Goulet, Tokyo, JP;
ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE), Charenton-le-Pont, FR;
NIKON CORPORATION, Tokyo, JP;
Abstract
The invention concerns a transparent thin liquid crystal alignment film () including liquid crystals () within a polymerised liquid crystal composition, the film () comprising a first main surface (), a second main surface () and a bulk () comprised between said opposed two main surfaces (), for which: ⋅ in the vicinity of the first main surface (), the liquid crystals () are aligned along a main first direction, ⋅ in the vicinity of the second main surface (), the liquid crystals () are aligned along a main second direction, different from the first direction, and in between, the bulk () comprises liquid crystals () maintained in an isotropic orientation. The invention concerns also a process of manufacturing such a liquid crystal alignment film () and a polarization-independent spatial phase modulator including such a liquid crystal alignment film ().