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. 06, 2022
Filed:
Jan. 31, 2020
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Kohei Kimura, Saitama, JP;
Takahiro Hatada, Utsunomiya, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 15/14 (2006.01); G02B 13/18 (2006.01); G03B 5/04 (2021.01); G02B 27/64 (2006.01); G02B 15/20 (2006.01);
U.S. Cl.
CPC ...
G02B 15/144113 (2019.08); G02B 13/18 (2013.01); G02B 15/1461 (2019.08); G02B 15/20 (2013.01); G02B 27/646 (2013.01); G03B 5/04 (2013.01); G03B 2205/0015 (2013.01); G03B 2205/0046 (2013.01);
Abstract
A zoom lens comprising, in order from an object side to an image side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit having a positive refractive power, and a fourth lens unit having a positive refractive power an interval between adjacent lens units changing and the first to fourth lens units moving during zooming. An image blur is corrected by moving a sub-unit having a negative refractive power as a whole in the third lens unit orthogonally to an optical axis. A predetermined conditions are satisfied.