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.:

US 8576485 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 05, 2013

Filed:

Sep. 28, 2010
Applicants:

Vladimir Markovich Kozenkov, Hong Kong, CN;

Wing Chiu Yip, Hong Kong, CN;

Vladimir Grigorievich Chigrinov, Hong Kong, CN;

Hoi Sing Kwok, Hong Kong, CN;

Inventors:

Vladimir Markovich Kozenkov, Hong Kong, CN;

Wing Chiu Yip, Hong Kong, CN;

Vladimir Grigorievich Chigrinov, Hong Kong, CN;

Hoi Sing Kwok, Hong Kong, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/28 (2006.01); G02B 5/30 (2006.01); G02B 5/23 (2006.01); G03F 1/00 (2012.01); G03F 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of forming a polarizing material is provided including exposing a layer of dichroic material to activating light illumination to provide an ordered structure with a distinguished absorption axis and thus photo-induce polarization, and fixing the induced polarization by polymerization of the dichroic layer. Novel polarizing materials formed thereby are also provided. By selectively exposing regions of the dichroic material to differing activating radiation, different regions with different polarization axes can be created. The polarizing material can also be provided with a coating or coatings to alter the spectral responses, and a stack formed of a plurality if dichroic layers can be provided.


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Kozenkov, Vladimir. (2013). Photo-induced dichroic polarizers and fabrication methods thereof (U.S. Patent No. 8576485). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8576485

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