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:
Apr. 04, 2023
Filed:
Aug. 16, 2019
Applicant:
Arkray, Inc., Kyoto, JP;
Inventor:
Hirohisa Uchida, Kyoto, JP;
Assignee:
ARKRAY, Inc., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 1/111 (2015.01); C30B 29/54 (2006.01); G02F 1/35 (2006.01); G02F 1/355 (2006.01);
U.S. Cl.
CPC ...
G02B 1/111 (2013.01); C30B 29/54 (2013.01); G02F 1/3505 (2021.01); G02F 1/3551 (2013.01);
Abstract
An optical element includes an optical crystal and an antireflection film coating the surface of the optical crystal. The antireflection film contains an organic compound that includes, as a structural unit, at least one of a compound containing a cyclic structure to which a fluorine atom is bound and a compound containing a cyclic olefin structure.