Photography – Camera detail – Lens mount
Patent
1995-11-27
1997-03-18
Gray, David M.
Photography
Camera detail
Lens mount
G03B 1700
Patent
active
056131712
ABSTRACT:
An optical accessory comprises a bayonet type mount which can be freely mounted by rotation to a camera body having a camera mount of a bayonet type, a switch related to a power source and an operating member for actuating the switch. The optical accessory mount has a mounting claw arranged for pushing the operating member, the length of said mounting claw being so set that the mounting claw pushes the operating member for actuating the switch when the mounting by rotation of the optical accessory to the camera body is almost completed.
REFERENCES:
patent: 4464034 (1984-08-01), Tomino
patent: 4922283 (1990-05-01), Fukui
Aihara Yoshihiko
Fujino Masahisa
Yamamichi Masayoshi
Canon Kabushiki Kaisha
Gray David M.
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