Shutter mechanism for camera

Details Shutter mechanism for camera Shutter mechanism for camera

1983-08-23

1985-03-19

Hix, L. T.

3542341, G03B 908

Patent

active

045055688

ABSTRACT:
A shutter mechanism for a camera comprises at least one shutter blade, an electromagnet for holding the shutter blade in a blocking position where an exposure aperture is concealed and another electromagnet for returning the shutter blade to the initial and blocking position. The holding electromagnet is energized in association with the shutter actuating operation to permit the shutter blade to move, initiating exposure. The shutter blade in the course of movement to an unblocking position is forced to be returned to the initial and blocking position by the returning electromagnet when the latter is energized and the held therein by the holding electromagnet which has been deenergized, terminating exposure.

REFERENCES:
patent: 4338014 (1982-07-01), Yoshida et al.

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