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. 09, 2026
Filed:
Aug. 11, 2023
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Akira Yokoyama, Tochigi, JP;
Shotaro Watanabe, Tochigi, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 1/113 (2015.01); G02B 1/12 (2006.01); G02B 7/02 (2021.01); G02B 27/00 (2006.01);
U.S. Cl.
CPC ...
G02B 1/113 (2013.01); G02B 1/12 (2013.01); G02B 7/026 (2013.01); G02B 27/0018 (2013.01);
Abstract
The optical apparatus comprises an optical member and an aluminum alloy member facing the optical member. A black oxide coating is formed on a surface of the aluminum alloy member facing the optical member, and a plurality of holes each having a diameter of 5 μm or more and 100 μm or less are formed in the black oxide coating.
Quick Actions:
Yokoyama, Akira. (2026). Optical apparatus, image pickup apparatus, and projection apparatus (U.S. Patent No. 12650540). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12650540
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