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:
Jul. 16, 2024
Filed:
Jan. 04, 2022
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Makoto Takahashi, Tochigi, JP;
Shuichi Kurokawa, Saitama, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 13/00 (2006.01); B60W 30/08 (2012.01); G02B 5/00 (2006.01); G06T 7/55 (2017.01); H04N 23/55 (2023.01);
U.S. Cl.
CPC ...
G02B 13/0045 (2013.01); B60W 30/08 (2013.01); G02B 5/005 (2013.01); G06T 7/55 (2017.01); H04N 23/55 (2023.01); B60W 2420/403 (2013.01); B60W 2554/80 (2020.02); G06T 2207/30261 (2013.01);
Abstract
An optical system includes a first lens disposed closest to an enlargement conjugate position, a second lens adjacent to the first lens, a diaphragm disposed closer to a reduction conjugate position than the second lens, and a final lens disposed closest to a reduction conjugate position. Each of the first lens, the second lens, and the final lens has an aspherical surface. The aspherical surface of each of the first and second lenses has an inflection point. An imaging magnification is different between a first area of the optical system and a second area on a periphery side of the first area.