7 September 2016 Modeling of efficient light extraction in light-pipes through specular surfaces with elliptical and lineal front shapes
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Abstract
Extraction light in light-pipes with different specular surfaces was analyzed. In the analysis, the impact of the surface shape in all properties of the extracted light in order to obtain an efficient extraction and a uniform illumination using a LED as light source. Also, several parameters of the specular surface to obtain spatial uniformity inside the light-pipe are considered. In this case, the simulation was made for a rectangular light­pipe. One objective of this work is to compare how the front face shape of the specular surface can affect the extraction of light in the lateral face of the light-pipe, only straight and elliptical front faces were used in this work and the comparison between them at different tilts and lengths were made. The main purpose of the front face was extract the light uniformly at the lateral face and this was done by studying simulations on OpticStudio Zemax. The results show how the extraction length is lower in the elliptical front but its total power performs better than the line front.
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Guillermo E. Sánchez-Guerrero, Guillermo E. Sánchez-Guerrero, Perla M. Viera-González, Perla M. Viera-González, Daniel E. Ceballos-Herrera, Daniel E. Ceballos-Herrera, Edgar Martínez-Guerra, Edgar Martínez-Guerra, } "Modeling of efficient light extraction in light-pipes through specular surfaces with elliptical and lineal front shapes", Proc. SPIE 9955, Nonimaging Optics: Efficient Design for Illumination and Solar Concentration XIII—Commemorating the 50th Anniversary of Nonimaging Optics, 99550P (7 September 2016); doi: 10.1117/12.2237829; https://doi.org/10.1117/12.2237829
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