| 方棒照明系统的光学扩展量传递分析 |
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| 引用本文： | 吕勇,郑臻荣.方棒照明系统的光学扩展量传递分析[J].北京航空航天大学学报,2004,30(6):569-571. |
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| 作者姓名： | 吕勇 郑臻荣 |
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| 作者单位： | 北京机械工业学院,电子信息工程系,北京,100085;浙江大学,现代光学仪器国家重点实验室,杭州,310027 |
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| 摘 要： | 为优化方棒照明系统的整体性能,基于非成像光学的光学扩展量,对方棒尺寸与后继光学系统进行匹配,分析了光学扩展量经方棒传递后的变化.理论分析和实验表明方棒的截面尺寸与入射光斑的半径在一定比率时系统具有最大光能利用率,在理想情况下方棒截面高度与入射光斑半径的最佳比率为1.535,实际系统中该比率需适当修正.据此,提出了限制光斑进入方棒以提高整体照明系统效率的方法.
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| 关 键 词： | 光学 照明系统 效率 方棒 光学扩展量 |
| 文章编号： | 1001-5965(2004)06-0569-03 |
| 收稿时间： | 2003-12-02 |
| 修稿时间： | 2003年12月2日 |
Analysis for optical extend in light-pipe illumination system |
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| Lü Yong,Zheng Zhenrong.Analysis for optical extend in light-pipe illumination system[J].Journal of Beijing University of Aeronautics and Astronautics,2004,30(6):569-571. |
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| Authors: | Lü Yong Zheng Zhenrong |
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| Institution: | 1. Department of Electronic Information Engineering, Beijing Institute of Machinery, Beijing 100085, China;
2. State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | Based on optical extend,non-imaging optics was used to optimize the light-pipe lighting system. The transfer of optical extend in light-pipe was analyzed. The detailed analysis and experiment show that a balance between the section size of the light-pipe and the F number of the light beam should be reached to acquire best performance. Theoretically the optimal ratio of the height of the light-pipe to the radius of the light beam is 1.535,it will change slightly in the different systems. So a new method to limit the facula was presented to improve illumination efficiency of light-pipe. |
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| Keywords: | optics lighting system efficiency light-pipe optical extend |
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