Solid-state image pickup device with selective output characteri

Details Solid-state image pickup device with selective output characteri Solid-state image pickup device with selective output characteri

1985-01-02

1987-02-03

Sikes, William L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

357 24, 357 45, 358212, 358213, H01L 2714, H01L 3100

Patent

active

046411690

ABSTRACT:
An imaging apparatus includes a solid-state image pickup device having an array of photosensitive cells formed on a semiconductor substrate, and reading circuitry for sequentially reading out video signals from the cells. Each photosensitive cell has a junction portion formed on the substrate for storing photocarriers, a metal layer for collecting photocarriers to the junction portion, a photoconductive layer formed on the metal layer for generating photocarriers associated with an incident light, and a transparent electrode layer formed on the photoconductive layer and including an electrically conductive substance transparent with respect to light. The apparatus further includes a power supply unit for supplying a variable bias voltage to the transparent electrode layer. The value and polarity of the bias voltage is variable so that an output characteristic of the video signals can be adjusted.

REFERENCES:
patent: 4323912 (1982-04-01), Koike et al.

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