Output irradiance of tapered lightpipes

被引:7
作者
Moreno, Ivan [1 ]
机构
[1] Univ Autonoma Zacatecas, Unidad Acad Fis, Zacatecas 98060, Mexico
关键词
PIPE; ILLUMINATION; DESIGN; PROJECTORS; FLUX;
D O I
10.1364/JOSAA.27.001985
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A light cone efficiently transports, distributes, and concentrates the incoming radiation. I derive a formula for the spatial irradiance (or illuminance) distribution at the exit aperture of a tapered light pipe. The theory is demonstrated by Monte Carlo ray-tracing for lightpipes with light-emitting diodes at the input face. The analysis is based on the addition of the radiation patterns of the multiple virtual sources that, as in a three-dimensional kaleidoscope, are seen through a tapered light tube. Given its explicit dependence on the structural and optical parameters, this analysis may be a useful tool in the development and application of light cones. (C) 2010 Optical Society of America
引用
收藏
页码:1985 / 1993
页数:9
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