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:
Aug. 07, 2020
Canon Kabushiki Kaisha, Tokyo, JP;
Kazuya Shimomura, Saitama, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
Provided is a zoom lens including, in order from an object side: a positive first unit not moving for zooming; one or two moving units move for zooming and including a negative unit; a negative unit moving for zooming; a positive unit including a stop and moving for zooming; and a positive final unit not moving for zooming. The distances on the optical axis, from surface, closest to the object side, of the first unit to a surface, closest to an image side, of the first unit, from the surface, closest to the object side, of the first unit to the stop at the wide angle end, from the surface, closest to the image side, of the first unit to the stop at the wide angle end, and the maximum distance from the surface, closest to the image side, of the first unit to the stop are appropriately set.