Electronic still camera capable of compensating for variations i

Details Electronic still camera capable of compensating for variations i Electronic still camera capable of compensating for variations i

1991-09-05

1992-03-31

Groody, James J.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358209, 358909, H04N 314, H04N 5335, H04N 530

Patent

active

051012766

ABSTRACT:
An electronic still camera wherein exposures of different exposure times are accomplished at overlapped timings by controlling sweeping and reading operations of two fields to be exposed by the image pickup device, independently of each field so that the images thus exposed are recorded. Two images are recorded by exposing an object in conformity to one specific and another luminances if the luminance difference is large. When a plurality of images are to be continuously recorded by varying exposure conditions, signals of second and later images are recorded only at its region, in which signal levels are within a proper range, but are outside of the proper range in the preceding image. Luminance area detecting devices for detecting each area of a photographic frame, divided according to luminance level of image pickup signals detected by an image pickup device during photographing under a set condition are provided, and exposure control devices for controlling the exposure at the time of photographing so that a luminance region occupying a large area detected may take a proper signal level are provided.

REFERENCES:
patent: 4529301 (1985-07-01), Rountree
patent: 4614966 (1986-09-01), Yunoki et al.
patent: 4647975 (1987-03-01), Alston et al.
patent: 4707743 (1987-11-01), Tokumitsu et al.
patent: 4851915 (1989-07-01), Yang et al.
patent: 4951147 (1990-08-01), Aknar et al.

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