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, 1987
Filed:
Jan. 29, 1985
Applicant:
Inventor:
Shinji Nagaoka, Yotsukaido, JP;
Assignee:
Seiko Koki Kabushiki Kaisha, Chiba, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354 21 ;
Abstract
An automatic film sensitivity setting device uses part of electrical contacts provided on a film patrone of CAS system to produce from two-bit information a voltage signal indicating the film sensitivity index for the exposure control circuit of a camera. The device includes the circuit for setting the film sensitivity index manually.