Exposure and focus system for a zoom camera

Details Exposure and focus system for a zoom camera Exposure and focus system for a zoom camera

1993-09-13

1994-08-02

Perkey, W. B.

354414, 354419, 354422, 354443, G03B 7091, G03B 1336, G03B 1503

Patent

active

053350413

ABSTRACT:
A light-sensitive, zone focus, passive automatic focus/automatic exposure system for a zoom camera receives light level data and selects flash status, lens focus distance, and exposure setting such that flash illumination is provided at a light level greater than necessary to prevent underexposure but sufficient to provide fill-flash based only on the detected light level. A no-flash mode is provided in which exposure times are increased rather than activating the flash.

REFERENCES:
patent: 4295715 (1981-10-01), Breen
patent: 4345825 (1982-08-01), Matteson et al.
patent: 4354748 (1982-10-01), Grimes et al.
patent: 4684995 (1987-08-01), Baumeister
patent: 4727389 (1988-02-01), Raschke
patent: 5017955 (1991-05-01), Kotani

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