Shutter control device for camera and control method therefor

Details Shutter control device for camera and control method therefor Shutter control device for camera and control method therefor

1992-04-20

1993-10-19

Gellner, Michael L.

G03B 708

Patent

active

052550494

ABSTRACT:
A shutter control device for a camera includes a control arrangement for controlling the opening and closing of the shutter as a function of an exposure value and a diaphragm value. The control arrangement stores values corresponding to a predetermined diaphragm setting, and employs the parameters of the predetermined setting and the exposure value and diaphragm value in order to determine the opening time of the shutter. In another arrangement, the control arrangement determines the effective exposure time as a function of the brightness of the object, distance to the object and a diaphragm, and employs this effective exposure time and a stored correction factor to determine the actual exposure time.

REFERENCES:
patent: 5155521 (1992-10-01), Bell et al.

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