Electrical contact arrangement in photographic camera for...

Details Electrical contact arrangement in photographic camera for... Electrical contact arrangement in photographic camera for...

G - Physics

03

B

95/54

G03B 1/00 (2006.01) G03B 17/16 (2006.01)

Patent

CA 1198306

ABSTRACT OF THE DISCLOSURE The present invention provides an electrical contact arrangement in an interchangeable lens camera to transmit specific diaphragm values and switching information of indivi- dual interchangeable lenses, said contact arrangement compris- ing electrical contacts arranged on mount surfaces of each lens and a camera body, respectively, wherein electrical contacts for transmission of the switching information are so arranged that, on the camera body, they are fixed against a projection from the associated mount surface or in the form of a recess while, on the lens, they are normally biased to extend from the associated mount surface; and operation of a switching member causes an electrical circuit to be closed or opened through these electrical contacts.

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