Compact camera with automatic focal length dependent exposure ad

Details Compact camera with automatic focal length dependent exposure ad Compact camera with automatic focal length dependent exposure ad

1993-11-30

1995-08-08

Adams, Russell E.

354414, 3541951, G03B 708

Patent

active

054403693

ABSTRACT:
A compact camera has a variable focal length photographing optical system, a multisegment photometric system that is separate from the photographing optical system, each segment outputting a brightness level, and a controller that determines an exposure value for exposing a film by using weighting coefficients to calculate a weighted average of the brightness levels outputted by the photometric system. The weighting coefficients vary according to the focal length of the photographing optical system.

REFERENCES:
patent: 4912495 (1990-03-01), Ishikawa et al.
patent: 5021818 (1991-06-01), Satoh et al.
patent: 5023649 (1991-06-01), Hayashi et al.
patent: 5289225 (1994-02-01), Hirai

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