Bayonet mount structure for interchangeable photographing lens t

Details Bayonet mount structure for interchangeable photographing lens t Bayonet mount structure for interchangeable photographing lens t

1987-01-27

1988-08-23

Gellner, Michael L.

G03B 300

Patent

active

047664533

ABSTRACT:
A bayonet mount structure for an interchangeable photographic lens unit comprises cooperable lens unit and camera mounts with an optimum arrangement of bayonet pawls, a lock slot and pin for determining rotational position, coupling shafts through which a driving force for auto-focusing is transmitted to the lens unit, electrical contacts for transmitting electrical signals between the lens unit and the camera body, and a mechanical signal surface and signal detector for transmitting optical performance information, such as minimum F-number of the lens unit, to the camera body.

REFERENCES:
patent: 4536071 (1985-08-01), Malkawa et al.
patent: 4564265 (1986-01-01), Miki

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