Integration time control

Details Integration time control Integration time control

1982-06-18

1984-11-27

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358228, 350485, H04N 314

Patent

active

044854056

ABSTRACT:
This is an apparatus and method for increased dynamic range control of a rge coupled device camera. The dynamic range is improved by use of a frustrated total internal reflection device which limits the amount of light that can reach a CCD array within the camera system. The net effect of the frustrated total internal reflection device is to eliminate photon access to the sensor during the time that smear noise may occur. By appropriate circuit controls, the time of photon contact with the CCD array is controlled and thereby limits saturation of the CCD array.

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