氦氖激光下彩色液晶电视的透射率研究

在氦氖激光中使用彩色液晶电视需要澄清红、绿、蓝三分量对透射率的贡献。实验表明，红、绿分量在相当大的范围内有近似线性，绿分量甚至比红分量的贡献更大，而蓝分量的贡献较小。利用三色滤光片透射光谱的重叠性质和液晶的非线性，可以减少激光下彩色液晶电视的分辨率的下降。除此以外，还发现红、绿、蓝三分量之间存在着很强的相互作用，只有综合考虑亮度和三分量之间的相互关系，才能最大限度地发挥彩色液晶电视在相干光照射下显示灰度图像的能力

Study of Transmittance of a He Ne beam through Color liquid crystal television

Contributions of red, green and blue components of color liquid crystal television to the transmittance of a He Ne laser beam should be clarified. Experiments show that there is an approximate linearity in quite a large range for the red and green components. The green component is even more active than the red, but the blue is inferior. It is possible to reduce the loss of spatial resolution by virtue of the spectrum coincidance of the filters and the non linearity of liquid crystal. It is also observed that the three color components have a strong dependence on each other. Only considering both lightness and interaction of the three components can bring about the best effect of color liquid crystal television in a coherent beam.