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:
Aug. 11, 1992
Filed:
Oct. 02, 1991
Mita Industrial Co., Ltd., Osaka, JP;
Abstract
In a magnification adjusting mechanism, preparatory movement position calculating means utilizes a current position where an optical system is positioned at present, and a target position for the optical system which corresponds to an aimed magnification inputted by a magnification inputting means, to calculate a preparatory movement position between the current position and said target position, and optical system drive control means controls optical system driving means in such a manner that, when a magnification is inputted by the magnification inputting means, the optical system is moved to a preparatory movement position calculated by the preparatory movement position calculating means, and that, when a final magnification is determined, the optical system is moved to the target position, whereby even when a magnification is set again because it is unacceptable, the optical system is quickly moved to the destination.