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:
Feb. 19, 2002
Filed:
May. 25, 2000
Applicant:
Inventors:
Yoshiharu Tanaka, Kawachinagano, JP;
Junichi Tanii, Izumi, JP;
Assignee:
Minolta Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 1/332 ;
U.S. Cl.
CPC ...
G03B 1/332 ;
Abstract
A lens drive device that is located inside a camera main body and can drive lenses that are interchangeably mounted to the camera main body, said lens drive device having a coupler that transmits the drive force to the lenses, a drive motor that rotates and drives the coupler, a clutch mechanism that connects and disconnects the coupler and the drive motor, and an encoder that detects the amount of rotation of the coupler while the coupler and the drive motor are disconnected by means of the clutch mechanism.