Camera with electromagnetically driven lens barrel

Details Camera with electromagnetically driven lens barrel Camera with electromagnetically driven lens barrel

1986-04-23

1987-06-09

Perkey, W. B.

3542341, G03B 310, G03B 908

Patent

active

046716394

ABSTRACT:
In a camera which is provided with an electromagnetically driven lens barrel and is arranged to control a shutter by driving a rotor with an electromagnetic force generated by energizing a coil printed on the rotor, power supply to the coil is effected in a pulse-like manner for drawing out a photo-taking lens and in a continuous manner for driving the shutter.

REFERENCES:
patent: 4504132 (1985-03-01), Martin et al.
patent: 4505567 (1985-03-01), Hirohata et al.
patent: 4508442 (1985-04-01), Hirohata
patent: 4540264 (1985-09-01), Daitoku et al.
patent: 4560266 (1985-12-01), Namai et al.

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