Exposure calculating apparatus

Details Exposure calculating apparatus Exposure calculating apparatus

1994-11-16

1995-10-24

Perkey, W. B.

Television

Special applications

Simulator

348169, G03B 1700, H04N 5232

Patent

active

054614520

ABSTRACT:
An exposure calculating apparatus includes a light-metering device, consisting of a light-metering elements corresponding to elementary areas obtained by dividing a field of a focusing optical system, for measuring a light intensity distribution in the field, a position of object detecting means for detecting a position of object in the field, a classifying means for changing a divisional pattern of light-metering areas in correspondence with the position of object, and classifying the light-metering elements of the light-metering device into a plurality of groups according to the divisional pattern, and a calculating device for calculating an exposure value by weighting the outputs from the plurality of light-metering elements in correspondence with the groups to which the light-metering elements belong, and supplying the exposure value to exposure control.

REFERENCES:
patent: 5036347 (1991-07-01), Tsunekawa et al.
patent: 5204749 (1993-04-01), Toyama et al.

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