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Two-dimensional amorphous-silicon photoconductor array for optical imaging

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Abstract

A simple array of amorphous-silicon photoconductors is investigated for use as a two-dimensional imaging device. The characteristics of the lateral photoconductive sensors and the behavior of a 128 × 128 element array are described in detail. It is shown that a two-dimensional array of the photoconductive sensors is capable of high-quality optical imaging with reasonable imaging speed. The array is also capable of performing image processing in real time. Furthermore, the two-dimensional array is well suited for use in optical processing and neural-network architectures.

© 1992 Optical Society of America

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