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:
Mar. 17, 2015
Filed:
Oct. 04, 2012
Olympus Imaging Corp., Shibuya-ku, Tokyo, JP;
Yutaka Arakawa, Tokyo, JP;
Kyoji Murayama, Tokyo, JP;
Olympus Imaging Corp., Tokyo, JP;
Abstract
A lens barrel includes a moving frame, a stepper motor that drives the moving frame, a screw member that rotates in accordance with rotation of the stepper motor, a screw gear that rotates in accordance with rotation of the screw member, a nut member that screws with the screw member, moves, by pressing, the moving frame, an external rotation operation ring, including a drive gear that rotates in response to external operation, that switches between a first state where the drive gear meshes with the screw gear, rotates the screw member, and drives the moving frame and a second state where the drive gear and the screw gear are not meshed, and control means that drive-controls the stepper motor in conjunction with rotation of the external rotation operation ring when the external rotation operation ring is in the second state.