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:
Feb. 15, 1994
Filed:
Mar. 11, 1992
Applicant:
Inventors:
Yoshiharu Shiokama, Chiba, JP;
Shozo Yamano, Tokyo, JP;
Assignee:
Nikon Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354286 ;
Abstract
A camera system in which by the mounting of a removably mountable lens, a plurality of electrical contacts between a camera body and the lens are brought into contact with one another and the transmission of information is effected between the camera body and the lens includes a camera body, a lens having no power source, a mechanical switch member provided in the lens, and power source actuating means for switching on the circuit power source of the camera body through the electrical contacts when the switch member is operated in a state in which the circuit power source is OFF.