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. 03, 2002
Filed:
Mar. 28, 2001
Yukio Noguchi, Omiya, JP;
Fuji Photo Optical Co., Ltd., Saitama, JP;
Abstract
A lens barrel includes first and second cylinders, a base, a single motor, a feed screw, a rotation mechanism, a helicoid mechanism, and a drive gear for transmitting a drive force of the motor to the feed screw and the rotation mechanism. The drive gear includes a cylindrical gear and a shaft gear having a shaft inserted in the cylindrical gear. The cylindrical gear and the shaft gear rotate about a common rotation axis. The cylindrical gear is interposed between the rotation mechanism and the motor, and the shaft gear is interposed between the feed screw and the motor. Accordingly, zooming and focusing can be driven by one motor, increasing integration and providing excellent space efficiency.