摘要
本文利用液晶光阀实现了光学密度图像的实时假彩色编码。文章采用一种简化混合场效应模式,数学地分析了液晶光阀对读出线偏振光的偏振态的调制作用,给出了投影光束的光强与液晶层上的电压、读出光的偏振方向和波长的关系,讨论了液晶光阀假彩色编码的原理和实质,并得到了实际假彩色编码的结果。
The principle and technique of real-time pseudo-color encoding for optical density images using a liquid crystal light valve(LCLV) are described and a simplified hybrid field effect mode of LCLV is presented, the polarized modulation of linear polarization readout light passed through liquid crystal layer is mathematically analysed, and the relations between the projection intensity and the voltage on the LC layer, the polarization direction and the wavelength of the readout light are given. With these results, the principle and essence are. discussed in detail. Experiments show that our analysis method is effective. At last, some pseudo-coloring images are presented.
出处
《中国激光》
EI
CAS
CSCD
北大核心
1991年第3期217-221,共5页
Chinese Journal of Lasers
关键词
液晶光阀
编码
图象
光阀
liguid crystal light valve, real-time pseudo-color encoding, polarized modulation
