Exposure controlling apparatus of a camera having a plurality of

Details Exposure controlling apparatus of a camera having a plurality of Exposure controlling apparatus of a camera having a plurality of

1989-04-19

1991-06-11

Hix, L. T.

354476, G03B 708, G03B 7099

Patent

active

050236490

ABSTRACT:
Brightness of a central area in a scene to be photographed and brightness of a peripheral area around the central area are measured, and the brightnesses of respective areas are outputted as first and second values. When the second value is larger than the first value, the first value is corrected by a value which has no relation with the respective measured values. Consequently, a proper controlling brightness value is provided for controlling the exposure.

REFERENCES:
patent: 4306787 (1981-12-01), Fukuhara et al.
patent: 4455071 (1984-06-01), Kato et al.
patent: 4456354 (1984-06-01), Mizokami
patent: 4527881 (1985-07-01), Sugawara
patent: 4566775 (1986-01-01), Tsunekawa
patent: 4690536 (1987-09-01), Nakai et al.
patent: 4821074 (1989-04-01), Nakai et al.
"Olympus OM-PC: The Camera with ESP", Photographic, Nov. 1985.
"Olympus OM-PC: Multi-Pattern Exposure Correction in a Moderately Priced 35 MM SLR", Modern Photography, Apr. 1986.

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