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:
Nov. 13, 2018
Filed:
Feb. 04, 2016
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 5/00 (2006.01); G02B 27/00 (2006.01); G02B 1/111 (2015.01); G02B 5/00 (2006.01); C09D 163/00 (2006.01); C09D 7/40 (2018.01); C08K 3/36 (2006.01); C08K 3/013 (2018.01);
U.S. Cl.
CPC ...
G02B 27/0018 (2013.01); C09D 5/006 (2013.01); C09D 7/67 (2018.01); C09D 7/68 (2018.01); C09D 163/00 (2013.01); G02B 1/111 (2013.01); G02B 5/003 (2013.01); C08K 3/013 (2018.01); C08K 3/36 (2013.01);
Abstract
An optical element includes a substrate and a light-shielding film on a part of the periphery of the substrate. The light-shielding film contains a compound having an epoxy group, a coloring agent, inorganic particles having a refractive index of 2.2 or more, and silica particles. The average concentration of the inorganic particles in an interface region having a thickness of 15 nm from the interface between the substrate and the light-shielding film is 1.1 to 1.5 times as high as the average concentration of the inorganic particles in the light-shielding film.