Image recording device having a conductive layer formed below a

Details Image recording device having a conductive layer formed below a Image recording device having a conductive layer formed below a

1988-12-23

1990-04-10

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

2505781, H01J 4014

Patent

active

049163043

ABSTRACT:
A photosensor having an electrically insulating, translucent substrate; an opaque conductive layer formed on the substrate; an insulating layer formed on the conductive layer, and a semiconductive layer formed on the insulating layer for receiving light and providing a current corresponding thereto. A pair of electrodes are formed in contact with the semiconductor layer and define a light receiving window therebetween. The electrodes are formed so as to not substantially overlap the conductive layer. The conductive layer is supplied with a bias voltage corresponding to a polarity and an amount of carriers defining the current of the semiconductor layer and a voltage Va of a small absolute value during a non-reading period of the photosensor.

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