Programmed shutter

Details Programmed shutter Programmed shutter

1978-11-17

1980-08-05

Griffin, Donald A.

G03B 714

Patent

active

042159237

ABSTRACT:
A camera shutter having a sector operating member for use in opening and closing a sector which is also used as an aperture vane and has a normally closed condition, a driving member which is moved by itself after a release operation, a sector opening member movable on said driving member and a control member the position of which may be changed in response to a brightness of the object to be photographed.
In the programmed shutter said control member controls the degree of engagement between said sector opening member and said sector operating member during a displacement of said driving member and the opening of the sector is controlled in response to a brightness of the object to be photographed.

REFERENCES:
patent: 3641903 (1972-02-01), Fukuda
patent: 3643562 (1972-02-01), Soichiro et al.
patent: 3677149 (1972-07-01), Taguchi
patent: 4109258 (1978-08-01), Arisaka et al.

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