Motor-driven shutter mechanism

Details Motor-driven shutter mechanism Motor-driven shutter mechanism

1976-09-23

1979-04-17

Hix, L. T.

354234, 354237, 354 29, G03B 708, G03B 940

Patent

active

041497945

ABSTRACT:
A motor-driven shutter mechanism comprising two shutter members adapted to open and close an exposure aperture for the passage of the incoming light therethrough. These shutter members are operatively coupled to each other and to the drive shafts of two motors through a motion translator for translating a rotary motion into a linear movement. Electric drive circuits for operating the motors are also disclosed.

REFERENCES:
patent: 3348462 (1967-10-01), Fahlenberg
patent: 3468228 (1969-09-01), Rogers
patent: 3750543 (1973-08-01), Eloranta et al.
patent: 3882522 (1975-05-01), Erlichman
patent: 3942183 (1976-03-01), Whiteside
patent: 3987473 (1976-10-01), Kondo
patent: 4009866 (1977-03-01), Iwata et al.
patent: 4016574 (1977-04-01), Iwata et al.

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