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. 08, 2003
Filed:
Aug. 20, 2001
Hideyuki Kasahara, Kokubunji, JP;
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
In a camera to which the finder drive mechanism of the invention is applied, a lens barrel is driven by a drive motor through a zoom drive gear train and a lens frame drive gear train, and the finder variable power of a finder optical system is moved forward and backward in association with the lens barrel through the zoom drive gear train, finder drive gear train, a friction clutch mechanism and a finder cam mechanism. The finder cam assembly of the finder cam mechanism rotates an angle of a predetermined operation range of at least one rotation, thereby moving forward and backward the zoom finder lens system. According to the camera having the finder drive mechanism, a finder optical system having high variable power can be assembled thereto, and moreover the finder optical system can be moved forward and backward with a pinpoint accuracy by the finder drive mechanism.