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本文描述了一种新的高度透明的液晶光阀。在投映显示中可以用它记录、存贮和显示高分辨率的图象。在这类光阀中用x—y偏转强度调制的红外激光束,局部加热吸收红外的可见光透明电极,而把信息记录下来。当胆甾型液晶受到瞬间加热后产生光散射中心。光散射中心用电擦除之前一直存在。在4×4cm的面积上分辨率为50条线/毫米,对比度大于10:1、当1.06μmYAIG激光的功率为几mw时,寻址速度大于10~4象元/秒。
This article describes a new highly transparent liquid crystal light valve. In projection display it can be used to record, store and display high resolution images. In this type of light valve, an infrared laser beam modulated with x-y deflection intensity is used to locally heat the visible light transparent infrared-absorbing electrode to record the information. When the cholesteric liquid crystal is instantaneously heated to produce a light scattering center. Light Scattering Center Erased until there is electricity. With a resolution of 50 lines / mm on a 4x4 cm area and a contrast ratio of greater than 10: 1, the addressing speed is greater than 10-4 pixels / second when the power of a 1.06 μm YAIG laser is a few mW.