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:
Apr. 12, 2022
Filed:
Aug. 06, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Takehiko Sato, Utsunomiya, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A lens apparatus includes a base member including a rectilinear guide groove portion, a cam barrel including a cam groove portion, a lens holding member provided with a roller member inserted into the rectilinear guide groove portion and the cam groove portion and configured to support a lens unit, a first light amount adjustment unit, a biasing member configured to bias the roller member to the cam groove portion, and a pressing member provided between the first light amount adjustment unit and the lens holding member and configured to press the biasing member, wherein the first light amount adjustment unit includes a rotation regulating portion configured to regulate rotation of the pressing member around an optical axis of the lens unit.