固态体积式真三维立体显示器双灯照明系统设计  

Design of double-lamp illumination system in solid-state volumetric true 3D display

作　　者：裴治棋 冯奇斌[1] 陈晓静[1] 吕国强[1] 

机构地区：[1]合肥工业大学特种显示技术教育部重点实验室特种显示技术国家工程实验室现代显示技术省部共建国家重点实验室光电技术研究院,安徽合肥230009

出　　处：《应用光学》2016年第1期131-135,共5页Journal of Applied Optics

基　　金：国家863项目(2012AA011901)

摘　　要：为了提高固态体积式真三维立体显示器的显示亮度,根据方棒照明系统的特点,设计了一种基于直流驱动、平行光出射的双灯照明系统。该设计根据光学扩展量守恒原理,提出了一种通过延长投影光源汇聚距离的方法以实现双灯照明。通过光学仿真分析,对设计的双灯方棒照明系统进行优化,提高方棒照明系统的光能利用率和照明均匀性。搭建实际系统,并进行了测试。测试结果表明:采用双灯直流汞灯照明后,2层散射态光阀后的成像亮度为41 711cd/m2,是单灯的1.4倍,有效提高了固态体积式真三维显示器的成像质量。Illumination system of solid-state volumetric true 3D display requires high brightness and high stability. In order to improve the intensity of solid-state volumetric true 3D display, a kind of double-lamp illumination system based on direct current（DC） driving, parallel rays and features of light-rod illumination system was proposed. Based on the principle of etendue con- servation, the converge distance was extended to realize double-lamp illumination. The double- lamp illumination system was optimized by optical simulation analysis to improve the efficiency and uniformity of the illumination system. Furthermore, the practical test system was built and measured. The result shows that the brightness on the 2-layer liquid crystal shutters in the scattering state is 41 711 cd/m2, which is 1.4 times of the brightness of the single lamp. The imaging luminance of solid-state volumetric true 3D display is efficiently improved.

关 键 词：固态体积式 真三维显示 非成像光学 双灯照明 

分 类 号：TN141[电子电信—物理电子学] TP394.1[自动化与计算机技术—计算机应用技术]