標題: Irradiance formations of on-axis Lambertian pointlike sources in polygonal total-internal-reflection straight light pipes
作者: Cheng, Yi-Kai
Wang, Meng-Hua
Chern, Jyh-Long
光電工程學系
Department of Photonics
公開日期: 1-Sep-2007
摘要: Different geometric shapes of light pipes cause different irradiance distributions. We analytically explore the irradiance distributions of on-axis Lambertian pointlike sources in polygonal total-internal-reflection (TIR) straight light pipes. lt is analytically shown that the irradiance of pentagonal light pipes concentrates on the center of the exit plane. Numerical verifications are also provided, and experimental explorations with different shapes of acrylic light pipes are carried out for comparison. We also analyze the influence of light-pipe length on distribution uniformity and deduce the smallest uniform-mixing length/circumradius ratios for polygonal light pipes. (c) 2007 Optical Society of America.
URI: http://dx.doi.org/10.1364/JOSAA.24.002748
http://hdl.handle.net/11536/10391
ISSN: 1084-7529
DOI: 10.1364/JOSAA.24.002748
期刊: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION
Volume: 24
Issue: 9
起始頁: 2748
結束頁: 2757
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