Exposure control device in a camera

Details Exposure control device in a camera Exposure control device in a camera

1975-10-01

1976-12-07

Peters, Jr., Joseph F.

354 53, 354 56, 354 60L, 354219, G03B 712, G03B 1720

Patent

active

039965937

ABSTRACT:
A method and apparatus for automatic iris control of cameras having an exposure value indicator located within the camera's viewfinder. The indicator emits light such that a photosensor when moving over the indicator face, senses the light and through associated circuitry and mechanisms stops the movement of an adjusting iris.

REFERENCES:
patent: 3812503 (1974-05-01), Engelsmann et al.
patent: 3818495 (1974-06-01), Sagara et al.

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