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. 27, 2025
Filed:
Dec. 29, 2021
Fujifilm Corporation, Tokyo, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
Provided is a lens barrel capable of improving stop accuracy. A roller support shaft () is attached to an outer peripheral portion of a cam cylinder (). A torque applying roller () is rotatably supported by the roller support shaft (). A biasing ring () is fitted to an outer peripheral portion of a second fixed cylinder (B) and is held to be movable in an axial direction. The biasing ring () is biased by a biasing spring () and pressed to abut against the torque applying roller (). In a case where the cam cylinder () is rotated, the torque applying roller () rolls along the biasing ring (). A load torque is applied to the rotation of the cam cylinder () by frictional force generated between the torque applying roller () and the roller support shaft () due to the rotation of the torque applying roller ().