Interchangeable lens barrel

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Details

354195, 354286, 350255, G03B 310, G02B 704

Patent

active

044165269

ABSTRACT:
An interchangeable lens barrel comprising a lens barrel having a mount which can be attached to a mount of a camera body, focussing lens means rotatably supported on the lens barrel and moving in directions of the optical axis when it rotates, a driving circuit having a driving motor, a driving mechanism connected to the driving motor for rotating the focussing lens means, actuation switch means in the driving circuit, and means on the mount of the lens barrel for receiving a driving signal of the driving motor from the camera body.

REFERENCES:
patent: 3465662 (1969-09-01), Kashiwase
patent: 3972056 (1976-07-01), Tsujimoto et al.
patent: 4288151 (1981-09-01), Matsumoto et al.
patent: 4323303 (1982-04-01), Enomoto

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