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1. 发明授权

US4826293A Electron beam addressed liquid crystal light valve with input sheet conductor 失效
标题翻译：电子束寻址液晶光阀，带输入片导体
公开(公告)号：US4826293A
公开(公告)日：1989-05-02
申请号：US21381
申请日：1987-03-03
申请人： Jan Grinberg , Nubuo J. Koda , Philip G. Reif , William P. Bleha , Murray S. Welkowsky , Arno G. Ledebuhr
发明人： Jan Grinberg , Nubuo J. Koda , Philip G. Reif , William P. Bleha , Murray S. Welkowsky , Arno G. Ledebuhr
IPC分类号： G02F1/135 , G02F1/13 , G02F1/133 , G02F1/1333
CPC分类号： G02F1/133348
摘要： An electron beam addressed liquid crystal light valve (LCLV) produces an AC voltage across a liquid crystal layer from a single polarity electron beam, and exhibits very high resolution. A thin layer of partially conductive material is deposited on a support membrane on the electron beam side of the liquid crystal. A conductive, electron beam permeable sheet is formed on the back of the partially conductive layer. Electrons from the beam are absorbed by the partially conductive layer, and then flow back out to the conductive sheet to produce an AC voltage prior to the next electron beam scan. The conductive sheet is connected in circuit with a transparent electrode which provides a voltage reference on the readout side of the liquid crystal. The device is designed with electrical parameters that produce a discharge rate from the partially conductive layer fast enough to complete an AC cycle between successive electron beam scans, but slow enough for the liquid crystal to respond and produce an image. A separate mirror can be provided to reflect the readout beam back through the liquid crystal, or the conductive sheet can itself serve as a mirror.
摘要翻译：电子束寻址液晶光阀（LCLV）从单极性电子束产生跨液晶层的交流电压，表现出非常高的分辨率。部分导电材料的薄层沉积在液晶的电子束侧的支撑膜上。在部分导电层的背面形成导电的电子束透过片。来自光束的电子被部分导电层吸收，然后在下一个电子束扫描之前流回导电片以产生交流电压。导电片与在液晶的读出侧提供电压基准的透明电极连接。该器件设计有电参数，其从部分导电层产生放电速率足够快以在连续的电子束扫描之间完成AC循环，但是足够慢以使液晶响应并产生图像。可以提供单独的反射镜以将读出的光束反射回液晶，或者导电片本身可以用作反射镜。

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