Electromagnetic driving device for a camera

Details Electromagnetic driving device for a camera Electromagnetic driving device for a camera

1981-12-22

1983-08-02

Gonzales, John

354 25, 354230, 354234, G03B 310

Patent

active

043962670

ABSTRACT:
An electromagnetic driving device for a camera having a first state for performing a focus adjusting operation of the objective lens by detecting the object distance which is followed after the termination of this focus adjusting operation, by a second state for initiating an exposure operation. A driven member is movable from an initial position in either 1st or 2nd direction by controlling the direction of current flow to a coil positioned in a magnetic field of permanent magnets. Movement of this driven member in the 1st direction controls the focus adjusting operation, and movement in the 2nd direction controls the exposure operation.

REFERENCES:
patent: 4348094 (1982-09-01), Hirohata et al.

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