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Proceedings Paper

Research on amorphous-silicon liquid-crystal light valve and its performance
Author(s): Yuhan Hai; Xingshi Li; Baocui Zang; Guikuen Zheng
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Paper Abstract

Using the amorphous silicon (a-Si:H) film, which is cheap and has a small lag, as the photoconductive layer of the liquid crystal light valve (LCLV) is an ideal selection. With the method of impedance matching, we have designed and fabricated an a-Si:H LCLV and have obtained a clear image on a large screen projection system. The resolution of the valve was 20 lp/mm. The sensitometry measurement showed that the projection light level varies linearly with the writing light level when the latter is below 100 (mu) W/cm2. The measurement of the transient response at the writing light level of 100 (mu) W/cm2 indicated that the rise time and the decay time were 60 ms and 80 ms, respectively.

Paper Details

Date Published: 1 April 1993
PDF: 6 pages
Proc. SPIE 1982, Photoelectronic Detection and Imaging: Technology and Applications '93, (1 April 1993); doi: 10.1117/12.142066
Show Author Affiliations
Yuhan Hai, Institute of Electronics (China)
Xingshi Li, Institute of Electronics (China)
Baocui Zang, Institute of Electronics (China)
Guikuen Zheng, Institute of Electronics (China)

Published in SPIE Proceedings Vol. 1982:
Photoelectronic Detection and Imaging: Technology and Applications '93

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