液晶光阀大屏幕显示中的偏振分色系统

在液晶光阀全彩色大屏幕显示中，偏发色系统是极其关键的，它含偏振和分色两重功能于一体，直接对显示图像的亮度、对比及色平衡等指标作出贡献。本系统共有４个偏振或消偏振分光镜和红、绿、兰三个修饰滤光片组成，全部偏振分色滤光片被封在一个油箱内。该系统得到了很好的性能，具有很高的消光比。

Polarization Selective Beamsplitter Used for Liquid Crystal Light Valve Large Screen Display

he polarization selective beamsplitter system used for a liquid crystal light valve (LCLV) full color image large screen display is a key subject. The function of such system involves both polarizing radiation and separating light ham into three primary colours. The properties of this system have great influence on the brihtness, contrast and colour distortion of the displsy system. The polarization selective beamsplitter system consists of four polarizers or non-polariser and three trimming filters. Whole system is immersed in an oil tank. Such a system has good performance, especially high extinction coefficient.