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. 08, 2018
Filed:
Nov. 23, 2015
Canon Kabushiki Kaisha, Tokyo, JP;
Yosuke Eguchi, Saitama, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
Provided is a zoom lens, including, in order from an object side to an image side: a positive first lens unit; a negative second lens unit; a positive third lens unit; and a rear lens group including at least one lens unit, in which the first lens unit is not configured to move for zooming, and the second lens unit, the third lens unit, and at least one lens unit included in the rear lens group are configured to move during zooming so that intervals between adjacent lens units are changed during zooming. A lateral magnification of the second lens unit at a wide angle end, a lateral magnification of the second lens unit at a telephoto end, a movement amount of the third lens unit during zooming from the wide angle end to the telephoto end, and a total length of the zoom lens are appropriately set.