Photometric device for camera

Details Photometric device for camera Photometric device for camera

1990-03-22

1991-01-15

Perkey, W. B.

354478, G03B 199, G03B 720

Patent

active

049857266

ABSTRACT:
A photometric device for a camera arranged to measure light by dividing a photographing field into a plurality of areas and to permit use of an interchangeable lens. The device computes a measured light value using information obtained from the interchangeable lens on its exit pupil position or on a correction value required for correcting its intrinsic drop of image plane light quantity along with information on each of the luminance values of the plurality of areas.

REFERENCES:
patent: 4306787 (1981-12-01), Fukuhara et al.
patent: 4529288 (1985-07-01), Nakai et al.
patent: 4534639 (1985-08-01), Konishi et al.
patent: 4571050 (1986-02-01), Momiyama
patent: 4636054 (1987-01-01), Saegusa
patent: 4690536 (1987-09-01), Nakai et al.

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