Electromagnetically driven shutter

Details Electromagnetically driven shutter Electromagnetically driven shutter

1981-07-06

1983-03-29

Gonzales, John

354246, G03B 940

Patent

active

043781500

ABSTRACT:
In an electromagnetically driven focal plane shutter of the type having a trailing screen which moves irrespective as to whether a leading screen is moving, there are provided a detecting member arranged to detect movement of the leading screen and an inhibiting means which inhibits the trailing screen from moving when movement of the leading screen is not detected.

REFERENCES:
patent: 4034390 (1977-07-01), Urano et al.
patent: 4225221 (1980-09-01), Saito et al.
patent: 4236796 (1980-12-01), Hayashi et al.

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