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. 12, 1980
Filed:
Nov. 16, 1977
Keiji Yamazaki, Sakai, JP;
Takeshi Egawa, Sennan, JP;
Yasuo Yamazaki, Kawachinagano, JP;
Hiroshi Ueda, Nara, JP;
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Abstract
An indicating device for a camera, which includes a viewfinder and which is selectively settable to either an automatic diaphragm control mode or an automatic shutter speed control mode, enables selective observation of the f-number and the shutter speed scales in accordance with the selection of the exposure control modes. The f-number and shutter speed scales are provided on a common transparent scale plate which is interconnected with an exposure control mode selecting member by a scale shifting mechanism. The scale shifting mechanism shifts the scale plate to a first position wherein only the f-number scale is in the viewfinder optical path upon selection of the automatic diaphragm control mode, and to a second position wherein both the f-number scale and the shutter speed scale are in the viewfinder optical path. A scale shielding member is provided within the viewfinder optical path to shield the f-number scale when the scale plate is in the second position.