Photometric device for a camera

Details Photometric device for a camera Photometric device for a camera

1991-04-08

1992-10-06

Perkey, W. B.

G03B 7091

Patent

active

051536315

ABSTRACT:
A camera photometric device includes a light receiving element operated by incident light for outputting photometric data. A storage arrangement stores a plurality of photometric data correction tables. An A/D converting circuit has a digital output for addressing the data correction tables stored in the storage arrangement. A variable resistor provides a variable analog voltage that is applied to the A/D converting circuit. A correction data indexing arrangement indexes the photometric data correction tables addressed by the voltage output from the variable resistor as a function of the luminance of incident light.

REFERENCES:
patent: 4423934 (1984-01-01), Lambeth
patent: 4887105 (1989-12-01), Ishikawa et al.
patent: 4945365 (1990-07-01), Fujino

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