Mount arrangement and interchangeable lens unit for photographic

Details Mount arrangement and interchangeable lens unit for photographic Mount arrangement and interchangeable lens unit for photographic

1988-04-20

1989-09-05

Adams, Russell E.

354455, G03B 1700

Patent

active

048643416

ABSTRACT:
A mount arrangement for a photographic camera which is capable of automatic diaphragm control and automatic focusing includes electrical contacts for transmission of electrical signals between a camera body and an interchangeable lens unit, and mechanical transmission members for the automatic diaphragm control and the automatic focusing and positioning member and recess on and at inner periphery of mount members of the camera body and the lens unit so as not to interfere with each other during the start and the course of the mounting of the lens unit onto the camera body through a bayonet mount device.

REFERENCES:
patent: 4104649 (1978-08-01), Tanaka et al.
patent: 4457609 (1984-07-01), Tomino et al.
patent: 4464034 (1984-08-01), Tomino
patent: 4536071 (1985-08-01), Maekawa et al.
patent: 4620780 (1986-11-01), Maekawa et al.
patent: 4748467 (1988-05-01), Maekawa et al.

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