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:
May. 07, 1996
Filed:
Apr. 14, 1994
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
In a camera of the present invention, an extension amount of a focusing lens is determined from a plural kind of table data for determining the extension amount of the lens from information on the distance to an object and information on the set focal distance. The camera has a storage unit for storing the zooming direction of an optical system during zooming, a selection unit for selecting data from the plural kind of table data on the basis of the contents stored in the storage unit, and an arithmetic unit for computing an extension amount of a focusing lens on the basis of the data selected by the selection unit. The camera also provides correction or backlash due to external forces by driving the photographic optical system for a given interval.