Exchange mount with data transmitting electrical contacts

Details Exchange mount with data transmitting electrical contacts Exchange mount with data transmitting electrical contacts

1982-04-28

1983-12-13

Mathews, A. A.

354455, 350257, G03B 1700

Patent

active

044202393

ABSTRACT:
A lens exchange mount for a camera mount of a camera body has a contact pin supported in a lens mount to transmit lens data to a camera circuit during an automatic exposure camera operation. An "auto" and "manual" switching lever is connected to a fixing ring, and a switching contact is connected to the switching lever. When the switching lever is set to "auto", the switching contact electrically connects a first electrical contact, supported in the lens exchange mount, and the contact pin so that the latter is electrically connected to a camera circuit so that lens data are transmitted to the camera.

REFERENCES:
patent: 4104649 (1978-08-01), Tanaka et al.
patent: 4230403 (1980-10-01), Hashimoto et al.
patent: 4357089 (1982-11-01), Okura et al.

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