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:
May. 06, 2025
Filed:
Feb. 10, 2023
Canon Kabushiki Kaisha, Tokyo, JP;
Shuichi Kurokawa, Saitama, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
The zoom lens includes, in order from an object side to an image side, a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, a middle group including two or more lens units, and a rear group including one or more lens units and having a positive refractive power. The first lens unit does not move for zooming. During zooming, the second lens unit moves and a distance between each adjacent lens units changes. In all lens units of the zoom lens, during zooming the second lens unit moves by a largest moving amount and has a largest zooming ratio between a wide-angle end and a telephoto end. Predetermined conditions are satisfied.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile