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.

Date of Patent:
Dec. 23, 2014

Filed:

Apr. 21, 2011
Applicants:

Sun-il Kim, Seoul, KR;

Jun-hee Choi, Seongnam-si, KR;

Jong-min Kim, Yongin-si, KR;

Inventors:

Sun-il Kim, Seoul, KR;

Jun-hee Choi, Seongnam-si, KR;

Jong-min Kim, Yongin-si, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 26/06 (2006.01); G02F 1/29 (2006.01); G02F 1/01 (2006.01);
U.S. Cl.
CPC ...
G02F 1/0147 (2013.01); G02F 2202/32 (2013.01); G02F 2201/305 (2013.01); G02F 1/292 (2013.01);
Abstract

An active optical device is provided. The active optical device includes an optically variable layer having a refractive index which changes according to temperature; and a temperature control unit that controls a temperature of one or more regions of the optically variable layer.


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