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. 20, 2023
Filed:
Aug. 31, 2020
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Masakazu Kodaira, Utsunomiya, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 15/177 (2006.01); G02B 15/167 (2006.01); G02B 13/18 (2006.01);
U.S. Cl.
CPC ...
G02B 15/177 (2013.01); G02B 13/18 (2013.01); G02B 15/167 (2013.01);
Abstract
A zoom lens includes, in order from an object side to an image side, a first lens unit having a negative refractive power and a second lens unit having a positive refractive power. A distance between the first lens unit and the second lens unit changes during zooming. The second lens unit includes an aperture stop and two or more negative lenses. The zoom lens satisfies specified conditional expressions.
Kodaira, Masakazu. (2023). Zoom lens, lens apparatus, and image pickup apparatus (U.S. Patent No. 11681129). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11681129
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile