基于硅基液晶显示技术的可见光光学目标模拟器的研制

为了产生制导武器仿真系统中所需的逼真的目标背景图像,建立了基于硅基液晶显示技术的可见光光学目标模拟器。给出了模拟器图像输出的实际效果图以及光学参量的测试方法和数据。测试表明,该装置有较好的亮度、对比度和均匀性,与传统的阴极射线管显示技术相比有效减轻了图像闪烁问题,能够提供稳定的视频输出,更有利于仿真系统中对动态目标的识别,是一种较为理想的图像模拟装置。同时给出了双复眼光学系统初始结构的计算方法并推导出简单的计算公式,该算法可以应用于其他双复眼照明系统中。

Development of Visible-Light Optical Simulator Based on Liquid Crystal on Silicon Technology

To offer the true to nature target-background images used in the simulation system for homing weapons,a visual-light optical target simulator based on the liquid crystal on silicon(LCOS) technology is established.The typical output images and measurement method and data of the optical parameter are presented.It is proved that the simulator has more appropriate luminance,higher contrast and better uniformity than other conventional ones.Compared with the cathode ray tube(CRT) technology,it avoids the flicker problem and offers steady video outputs,which can greatly improve the(seeker's) ability of capturing the goal.So the LCOS technology is an ideal choice for optical simulators.Besides,the calculation method of illumination system based on the double fly eye lens is provided and simple results are gained which can also be used in other illumination systems of projection.