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. 07, 1992
Filed:
Jul. 30, 1990
Applicant:
Inventor:
Yoshinobu Kudo, Osaka, JP;
Assignee:
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
3541951 ; 354219 ;
Abstract
A camera includes a photographic lens, a viewfinder having an objective lens for focusing a subject image on a focal plane, and the eye-piece lens for magnifying the subject image on the focal plane, driving device for driving the objective lens according to focal length of the photographic lens, and generating device for generating pseudo focal length according to position of the eye-piece lens. This camera provides an increased magnification in a small size and with ease, and enlarges a limited pseudo telephoto print area to the entire finder field so that the photographer can confirm the pseudo telephoto print view.