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:
Nov. 24, 1981
Filed:
Feb. 15, 1980
Nippon Kogaku K.K., Tokyo, JP;
Abstract
In a photographic camera comprising an exposure time control circuit for controlling the shutter speed in response to the brightness of the object and a film frame number indicating device capable of indicating a usable range for frames allowing photographing operation and a non-usable range for frames not allowing photographing operation, wherein the shutter being controlled to a shutter speed independent from the shutter speed determined by said exposure time control circuit when said indicating device indicates said non-usable range, an improvement comprises a second exposure time control circuit for controlling the shutter with a shutter speed suitable for flash photographing and switch means for selecting the shutter speed control by the aforementioned exposure time control circuit or by said second exposure time control circuit in response to the indication of said indicating device in such a manner that the shutter is controlled by the shutter speed determined by said second exposure time control circuit when said indicating device indicates said non-usable range.