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:
Sep. 12, 1989
Filed:
Sep. 09, 1988
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A control device for driving a zoom lens of a camera, comprising; a moving mirror cylinder movable on an optical axis of the camera between a first position corresponding to the shortest focal length of the zoom lens and a second position corresponding to the longest focal length of the zoom lens, a motor for moving the moving mirror cylinder in a predetermined direction, a detector for detecting a position of the moving mirror cylinder on the optical axis, a presetter for presetting a predetermined position between the first position and the second position, the predetermined position at which the moving mirror cylinder to stop, a controller for controlling the motor such that the moving mirror cylinder at a high speed, a starter for starting an actuation of the controller, a stopper for stopping an actuation of the controller in a case where the moving mirror cylinder arrives at the first position, the second position or the predetermined position.