光学学报, 2011, 31 (s1): s100307, 网络出版: 2011-06-23
大功率LED舞台灯的照明设计
A Designing of LED Stage Lighting for Long Distance
摘要
二次光学是直接决定舞台灯的输出效率、均匀度的重要环节。绿色环保的舞台照明要求LED舞台灯能够在增加总光通量的前提下,于30 m远处,形成一个4~6 m的均匀圆形光斑。而目前市场上的LED舞台灯在远距离的照明方面,不论是输出效率还是光斑的均匀性,都难以满足舞台照明的需求。设计了一种照明设计的模型,可以实现较高的输出功率和较均匀的圆形光斑。采用匀光棒、反光棱镜和反光碗的组合,可以比较好地实现远距离的照明要求。且该模型易于加工,最终的输出效率可以达到26%左右。
Abstract
A LED secondary-optics designing is an important step which decides the output efficiency and the uniformity of stage lighting. A green stage lighting requires that LED stage lights can increase the total flux and form a 4~6 m uniform circular spot at 30 m away. However, the LED stage lights currently on the market cannot meet these requirements. This article describes a new model of lighting design which can achieve both higher output power and more uniform circular spot. The model uses a uniform light stick, reflective prism and reflector to meet a longrange requirements. And the final output efficiency can be as high as 26%.
参考文献
[1] 余桂英, 金骥, 倪晓武 等. 基于光学扩展量的LED均匀照明反射器的设计[J]. 光学学报, 2009,29(8): 2297~2301
[2] Luo Yi, Zhang Xianpeng, Yang Yi et al.. Non-imaging optics and its application in solid state lighting [J]. Chinese J. Lasers, 2008, 罗毅, 张贤鹏, 王霖 等. 半导体照明中的非成像光学及其应用[J]. 中国激光, 2008,35(7): 963~971
[3] 李柏承, 张大伟, 黄元申 等. 功率型白光LED封装设计的研究进展[J]. 激光与光电子学进展, 2009, 46(9): 35~39
[4] 闫兴涛, 杨建峰, 张国琦 等. 基于经纬划分和切面迭代的自由曲面LED透镜设计[J]. 激光与光电子学进展, 2011,48(2): 22201
[5] 方志烈, 刘木清, 李杰. 半导体照明光源的技术进展[J]. 激光与光电子学进展, 2010,47(6): 062502
肖思, 李林. 大功率LED舞台灯的照明设计[J]. 光学学报, 2011, 31(s1): s100307. Xiao Si, Li Lin. A Designing of LED Stage Lighting for Long Distance[J]. Acta Optica Sinica, 2011, 31(s1): s100307.