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:
Sep. 01, 2026
Filed:
Sep. 05, 2023
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Junya Ichimura, Tochigi, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 13/00 (2006.01); G02B 1/04 (2006.01); G02B 15/14 (2006.01);
U.S. Cl.
CPC ...
G02B 13/006 (2013.01); G02B 1/041 (2013.01); G02B 13/0045 (2013.01); G02B 15/144107 (2019.08); G02B 15/144511 (2019.08); G02B 15/145121 (2019.08); G02B 15/1461 (2019.08); G02B 15/1465 (2019.08);
Abstract
A composite optical element includes a glass lens and a resin lens that are joined together. The resin lens has an aspheric shape. When Nd is a refractive index of the resin lens, νd is an Abbe number of the resin lens, and θgF is a partial dispersion ratio of the resin lens, Nd, νd, and θgF are appropriately set.