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:
Mar. 18, 2025
Filed:
Mar. 20, 2023
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Takeo Mori, Tochigi, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 23/55 (2023.01); G02B 9/08 (2006.01);
U.S. Cl.
CPC ...
H04N 23/55 (2023.01); G02B 9/08 (2013.01);
Abstract
An optical system consists of, in order from an object side to an image side, a front unit, an aperture stop, and a rear unit having positive refractive power as a whole. The rear unit includes a final lens disposed closest to the image side and having positive refractive power. A number of inequalities relating to the spatial relationship between the lenses and their refractive powers are satisfied.