Electronic camera with automatic exposure control

Details Electronic camera with automatic exposure control Electronic camera with automatic exposure control

1991-03-28

1993-06-29

Goldstein, Herbert

Facsimile and static presentation processing

Facsimile

Recording apparatus

358277, 358209, H04N 5238

Patent

active

052239357

ABSTRACT:
An electronic camera includes an optical device having a diaphragm for focusing an optical image of subject, an image sensor for sensing the focused optical image and for converting the sensed image into electric signals, a luminous energy level detector for detecting a level of luminous energy based on the electric signals, an exposure condition determining device for determining exposure-time data and diaphragm control data based on the level of luminous energy, an exposure-time control device for a time that the optical image is exposed to the image sensor based on the exposure-time data, a diaphragm controller for controlling the diaphragm based on the diaphragm control data, and a processor for processing the electric signals produced by the image sensor at proper exposure conditions so as to produce a video signal.

REFERENCES:
patent: 4598322 (1986-07-01), Atherton
patent: 4739409 (1988-04-01), Baumeister
patent: 4872058 (1989-10-01), Baba et al.
patent: 4969044 (1990-11-01), Hijikata et al.
patent: 4969045 (1990-11-01), Haruki et al.
patent: 4998162 (1991-03-01), Kondo et al.
patent: 5040072 (1991-08-01), Tsuji et al.
patent: 5043816 (1991-08-01), Nakano et al.
patent: 5049997 (1991-09-01), Arai
patent: 5065247 (1991-11-01), Haruki et al.

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