基于光源偏振补偿的硅基液晶激光三维显示光学引擎  

Laser Three-Dimensional Display System Based on Polarization Compensated Liquid Crystal on Silicon Optical Engine

作　　者：亓岩[1,2] 毕勇[1] 王宇[1] 王爱斌 王延伟[1] 成华[1] 王斌[1] 房涛[1] 颜博霞[1] 郑光[1] 

机构地区：[1]中国科学院光电研究院,北京100094 [2]中国科学院研究生院,北京100049 [3]北京中视中科光电技术有限公司,北京100049

出　　处：《中国激光》2011年第9期240-244,共5页Chinese Journal of Lasers

基　　金：国家863计划(2009AA032701;2009AA032706);电子信息产业发展基金([2008]97)资助课题

摘　　要：基于光源偏振补偿硅基液晶(LCOS)光学引擎的激光三维(3D)显示系统对传统的LCOS光学引擎引起的偏振光损失进行了补偿,使经由照明系统进入光学引擎的不同偏振方向的激光全部参与成像,既可以实现激光3D立体显示,还提高了二维(2D)显示时的光能利用率。进行2D显示时,入射激光的s偏振光和p偏振光分别对应于不同LCOS同时成像,成像后的图像在屏幕上相互叠加,投影后图像的亮度约为未进行偏振补偿时的2倍。当输入3D视频信号时,正交偏振的p偏振光和s偏振光分别对应于左右眼图像同时成像,观看者配戴由正交偏振片制成的眼镜,可实现双像分离,实现激光3D显示。Laser three-dimensional （3D） display system （LCOS） optical engine compensates the polarization loss based on polarization compensated liquid crystal on silicon of the traditional LCOS optical engine, light of different polarizations entering into the optical engine is utilized in the process of the imaging process, each polarization is directed to one of two LCOS panels. In two-dimensional （2D） operation, the same image is presented on each LCOS, producing a double-brightness image. In 3D mode, one LCOS produces a right-eye image and the other produces a left-eye image. The images are optically combined and leave the projector through the same projection lens. This improved optical engine realizes 3D display,as well as enhances the efficiency of the optical engine when working in 2D display mode. This approach is highly efficient in that nearly 100 % of the light emitted by the lasers utilized.

关 键 词：图像处理 激光显示 光学引擎 硅基液晶 三维立体显示 

分 类 号：TN27[电子电信—物理电子学]