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:
Dec. 13, 2022
Filed:
Jul. 09, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Katsuhiro Inoue, Utsunomiya, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A lens apparatus includes a cam barrel having a cam groove and rotatable around an optical axis, a cam follower engaged with the cam groove, a movable member movable in an optical axis direction via the cam follower as the cam barrel rotates, a straight guide member configured to guide the movable member in the optical axis direction and restrict a movement of the cam barrel in a first direction parallel to the optical axis, a first biasing member configured to bias the movable member in a second direction opposite to the first direction so that the cam follower contacts a first cam groove surface of the cam groove in the optical axis direction, and a second biasing member configured to bias the cam barrel in the first direction.