Image sensing apparatus having exposure level and dynamic range

Details Image sensing apparatus having exposure level and dynamic range Image sensing apparatus having exposure level and dynamic range

1993-02-26

1994-08-02

Razavi, Michael T.

Television

Camera, system and detail

Solid-state image sensor

348364, H04N 5238

Patent

active

053350758

ABSTRACT:
In the exposure control circuit of an image input device according to the present invention, the rays of light from the subject pass through a diaphragm adjusting the amount of light and undergoes photoelectric conversion at a CCD imaging element. The image signal read from the CCD imaging element is accumulated more than once at an accumulating circuit. The luminance of the subject is detected at a luminance detector. Based on the detected luminance, a condition setting circuit sets the amount of incident light, exposure time, and the number of additions to suitable values. With those suitable settings, the amount of light through the diaphragm, the exposure time of the CCD imaging element, and the number of accumulations by the accumulating circuit are controlled so as to enable the subject to be photographed under the best condition.

REFERENCES:
patent: 4580168 (1986-04-01), Levine
patent: 4623927 (1986-11-01), Hoshino
patent: 4635126 (1987-01-01), Kinoshita
patent: 4638367 (1987-01-01), Sakane et al.
patent: 4779137 (1988-10-01), Tojo et al.
patent: 4825291 (1989-04-01), Mimura et al.
patent: 4833541 (1989-05-01), Takuma et al.
patent: 4839729 (1989-06-01), Ando
patent: 4841366 (1989-06-01), Katagiri et al.
patent: 4849813 (1989-07-01), Hirao et al.
patent: 4868645 (1989-09-01), Kobayashi
patent: 4884142 (1989-11-01), Suzuki
patent: 4926247 (1990-05-01), Nagasaki et al.
patent: 4969045 (1990-11-01), Haruki et al.
patent: 4984002 (1991-01-01), Kokubo
patent: 5049997 (1991-09-01), Arai
T. Nakamura, K. Matsumoto, R. Hyuga and A. Yusa, "A New MOS Image Sensor Operating in a Non-Destructive Readout Mode", 1986, pp. 353-356, published by IEEE, (1986).

Affiliated with

Also associated with

Rating

Image sensing apparatus having exposure level and dynamic range does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image sensing apparatus having exposure level and dynamic range , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image sensing apparatus having exposure level and dynamic range will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-68521