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:
Jan. 14, 1997
Filed:
May. 04, 1994
Katsuhiko Tsunefuji, Sagamihara, JP;
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
An enlargement photographing apparatus of this invention, arranged between photographing lenses and a camera body, comprises a distance changing unit extending and retracting in an optical-axis direction for changing a distance between the photographing lenses and the camera body, a feeding-quantity detecting unit for detecting a quantity of feeding with respect to a reference position of the distance changing unit, a computing unit for computing a photographing scale factor on the basis of output information of the feeding-quantity detecting unit. information regarding the photographing lenses and the camera body and information of a reference length of the distance changing unit which is arranged on the enlargement photographing apparatus, and a display unit for displaying the photographing scale factor on the basis of an output from the computing unit.