中国激光, 2012, 39 (s2): s216004, 网络出版: 2013-01-18
数字微镜器件投影系统的全反射式棱镜设计及系统性能优化
Design and Optimization of a Total-Internal-Reflection Prism in the Digital Micromirror Device Projection System
光学器件 直角全反射式棱镜 数字光处理 光程 照明 optical devices right-angle total-internal-reflection prism digital light processing optical path illumination
摘要
直角全反射式(TIR)棱镜比传统TIR棱镜加工难度低,结构上体积减小50%,重量减小42%,从而降低成本。为了使结构便于加工,应用光学理论对直角TIR棱镜进行优化设计。最后运用光学软件对设计进行模拟,实验结果表明,系统效率从53%降低到48.3%,均匀性从68%上升到91%,证明了设计的直角TIR棱镜的合理性与可行性。
Abstract
Compared with the traditional total-internal-reflection (TIR) prism, the right-angle TIR prism is convenient to process. Meanwhile, it decreases 50% in the volume and 43% in the weight, which lowers the cost. Using the theory of optics the right-angle TIR prism is optimized in order to make it easier to process the structure. In the optical software simulation, the system′s efficiency decreases from 53% to 48.3%, while its uniformity can be enhanced from 68% to 91%. It proves that the right-angle TIR prism is reasonable and practicable.
李丹, 姚连芳, 徐西印, 曹雯, 薛芸芸, 郭海成, 张宝龙. 数字微镜器件投影系统的全反射式棱镜设计及系统性能优化[J]. 中国激光, 2012, 39(s2): s216004. Li Dan, Yao Lianfang, Xu Xiyin, Cao Wen, Xue Yunyun, Guo Haicheng, Zhang Baolong. Design and Optimization of a Total-Internal-Reflection Prism in the Digital Micromirror Device Projection System[J]. Chinese Journal of Lasers, 2012, 39(s2): s216004.