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:
May. 31, 2022
Filed:
Oct. 13, 2017
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventor:
Sang Choll Han, Seoul, KR;
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/28 (2006.01); G02B 5/30 (2006.01); G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
G02B 27/283 (2013.01); G02B 5/3016 (2013.01); G02F 1/133536 (2013.01); G02F 1/13355 (2021.01);
Abstract
The present application relates to an optical isolation device. The present application provides an optical isolation device having an excellent isolation ratio which can be formed simply and at low cost. Such an optical isolation device can be applied to various applications such as the field of optical communication or laser optics, the field of security or privacy protection, brightness enhancement of displays, or a use for hiding and covering.