LED-Based Projection Systems
LED-Based Projection Systems
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基于 LED 的投影系统
DOI：
10.1109/jdt.2007.901560
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发表时间：
2007
影响因子：
--
通讯作者：
H. Kwok
中科院分区：
文献类型：
--
作者：
Xingjie Yu;Y. Ho;L. Tan;Ho;H. Kwok
提出了一种新的基于LED阵列的投影显示器的设计方法。通过结合光学扩展量限制，系统强度，和效率的要求，提出了一种新的参数空间。利用该参数空间，设计了LED透镜阵列和复合抛物面聚光器（CPC）阵列照明系统。一个1000-lm的LED光源建成。基于这些透镜阵列和CPC阵列照明器，提出了几种基于LED的硅基液晶（LCOS）投影系统。其中，提出并测试了一种单片LCOS投影系统。这里讨论的方法应该是有用的LED阵列照明系统的投影机的设计一般。
A novel design methodology for LED-array-based projection displays has been developed. By combining etendue limitation, system intensity, and efficiency requirements, a novel parameter space is proposed. Using this parameter space, LED lens-array and compound parabolic concentrator (CPC)-array illumination systems have been designed. A 1000-lm LED light source is built. Based on these lens-array and CPC-array illuminators, several LED-based liquid crystal on silicon (LCOS) projection systems are suggested. Among them, a one-panel LCOS projection system is proposed and tested. The method discussed here should be useful in the design of LED-array illumination systems for projectors in general.