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. 05, 2024
Filed:
Jun. 28, 2021
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 3/04 (2006.01); B32B 7/023 (2019.01); B32B 17/10 (2006.01); C03C 27/10 (2006.01); C08J 3/24 (2006.01); C09J 5/00 (2006.01); H04N 23/51 (2023.01);
U.S. Cl.
CPC ...
G02B 3/04 (2013.01); B32B 7/023 (2019.01); B32B 17/10 (2013.01); C03C 27/10 (2013.01); C08J 3/24 (2013.01); C09J 5/00 (2013.01); C08J 2333/08 (2013.01); H04N 23/51 (2023.01);
Abstract
A method of manufacturing an optical element includes preparing a first transparent base having a d-line refractive index of 1.80 or more and a second transparent base having a d-line refractive index of 1.80 or more, coating an adhesive on the first transparent base and/or the second transparent base, the adhesive containing a photo-curable resin and a photopolymerization initiator having an absorption edge wavelength of 410 nm or more, and bonding the first transparent base and the second transparent base by irradiating the adhesive with light with a wavelength of 400 nm or more through the second transparent base to cure the adhesive.