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:
Jun. 21, 2022
Filed:
Sep. 21, 2018
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Dong Ho Ko, Daejeon, KR;
Kyung Ki Hong, Daejeon, KR;
Young Min Lee, Daejeon, KR;
Doo Young Huh, Daejeon, KR;
So Ra Yoon, Daejeon, KR;
Sun Kug Kim, Daejeon, KR;
Ji Won Kim, Daejeon, KR;
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/30 (2006.01); G02B 5/22 (2006.01); G02B 27/01 (2006.01); G02B 27/42 (2006.01); G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
G02B 5/3083 (2013.01); G02B 5/223 (2013.01); G02B 5/3016 (2013.01); G02B 27/0101 (2013.01); G02B 27/4205 (2013.01); G02F 1/133514 (2013.01); G02B 2027/0118 (2013.01);
Abstract
The present application relates to an optical film, an optical element and an imaging device. The optical film of the present application does not only exhibit broadband polarization conversion characteristics in the visible light region, but also has absorption bands in the visible light region. Such an optical film can be applied to an imaging device such as an augmented reality apparatus as an optical element such as a diffractive light guide plate laminate to suppress crosstalk.