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. 09, 1985
Filed:
May. 03, 1983
Nippon Kogaku K.K., Tokyo, JP;
Abstract
A camera in which light-sensing means is exposed to the light from an object to be photographed passed through stop means includes means for setting the aperture value of the stop means, means for driving the stop means in a direction in which the aperture value of the stop means is coincident with the aperture value by the setting means, prior to the exposure of the light-sensing means, metering means including a light-receiving element adapted to receive the light from the object passed through the stop means and produce an output corresponding to the intensity of the received light, the metering means producing a metering output corresponding to the brightness of the object on the basis of the output of the light-receiving element, means for controlling the exposure time of the light-sensing means in order that the light-sensing means may obtain a proper exposure, on the basis of the metering output after the stop means has been driven by the driving means, and discriminating means for discriminating, prior to the driving of the stop means, that the intensity of the light received by the light-receiving element after the termination of the driving of the stop means is lower than a predetermined value, on the basis of the metering output before the stop means is driven by the driving means, and putting out a discrimination signal.