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:
Jul. 05, 2022
Filed:
Aug. 23, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Yuichi Kosaka, Utsunomiya, JP;
Shinsuke Yoshida, Tokyo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A lens apparatus includes an optical system including a front lens group having a positive refractive power and configured to move to an object side during focusing from infinity to a close-distance object, and a rear lens group arranged on an image side of the front lens group and configured to be immovable during focusing, a motor configured to move the front lens group, and a holding member including a flange portion, on the object side, extending in a direction orthogonal to an optical axis of the optical system and configured to hold at least part of the rear lens group, wherein the motor includes a coil, a casing housing the coil, and a shaft portion extending from the casing in an optical-axis direction of the optical system, and arranged at a position at which an end surface on the image side of the casing is on the object side with respect to the flange portion in the optical-axis direction.