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:
Dec. 16, 1980
Filed:
Sep. 07, 1979
Yoshiaki Ohtsubo, Kawasaki, JP;
Shigeo Akasaka, Kodaira, JP;
Sakuji Watanabe, Warabi, JP;
Mikio Takemae, Yokohama, JP;
Ryuzo Motoori, Kawasaki, JP;
Yasunori Kitamura, Tokyo, JP;
Nippon Kogaku K.K., Tokyo, JP;
Abstract
An alarm device control system in a camera having a metering device for measuring the brightness of an object and generating an output corresponding to a proper exposure value, and an alarm device for receiving the output of the metering device as input and giving an alarm when the proper exposure value does not satisfy predetermined photographing conditions. The system comprises switch means adapted to become operative in response to operation of a shutter release member, and a preparatory power source device for maintaining the metering device operative for a predetermined time after the switch means has become inoperative.