Research on amorphous-silicon liquid-crystal light valve and its performance

Yuhan Hai; Xingshi Li; Baocui Zang; Guikuen Zheng

doi:10.1117/12.142066

1 April 1993 Research on amorphous-silicon liquid-crystal light valve and its performance

Yuhan Hai, Xingshi Li, Baocui Zang, Guikuen Zheng

Proceedings Volume 1982, Photoelectronic Detection and Imaging: Technology and Applications '93; (1993) https://doi.org/10.1117/12.142066
Event: Photoelectronic Detection and Imaging: Technology and Applications '93, 1993, Beijing, China

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.

Citation Download Citation

Yuhan Hai, Xingshi Li, Baocui Zang, and Guikuen Zheng "Research on amorphous-silicon liquid-crystal light valve and its performance", Proc. SPIE 1982, Photoelectronic Detection and Imaging: Technology and Applications '93, (1 April 1993); https://doi.org/10.1117/12.142066

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