激光投影显示色均问题的仿真计算和实验研究北大核心CSCD

针对激光投影出现的色均问题,本文首先对照明主体进行了设计,通过加入反射镜增加蓝光光程,缩短绿光光程,并在不同位置加入扩散片实现对色均的降低,并在此照明主体的设计之上,完成整体激光投影显示系统的设计,通过仿真搭建激光显示系统来研究三基色光源通过不同角度,类型,位置的动态/静态扩散片后所成图像的色均问题,并依据仿真结果进行实验。仿真以及实验结果表明,色均明显降低,搭配Diffuser 2高斯2°情况下色均小于0.01,照度均匀性大于93%,达到行业领先水平。

Simulation calculation and experimental study of the colour homogeneity problem of laser projection displays

Aiming at the color uniformity problem of laser projection,the lighting body is designed in this paper.By adding reflectors to increase the blue light path and shorten the green light path,and adding diffusers in different positions to reduce the color uniformity,the design of the overall laser projection display system is completed based on the design of the main lighting body.The laser display system is built through simulation to study the color homogeneity of the image formed by the three primary color light sources through different angles,types and positions of dynamic/static diffuser,and the experiment is carried out according to the simulation results.The simulation and experimental results show that the color is significantly reduced,the color is less than 0.01 and the illumination uniformity is more than 93% under the Diffuser 2 Gaussian 2° collocation,reaching the industry leading level.