19 August 2010 Simple Köhler homogenizers for image-forming solar concentrators
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Abstract
By adding simple Köhler homogenizers in the form of aspheric lenses generated with an optimization approach, we solve the problems of non-uniform irradiance distribution and non-square irradiance pattern existing in some image-forming solar concentrators. The homogenizers do not require optical bonding to the solar cells or total internal reflection surface. Two examples are shown including a Fresnel lens based concentrator and a two-mirror aplanatic system.
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Weiya Zhang, Weiya Zhang, Roland Winston, Roland Winston, } "Simple Köhler homogenizers for image-forming solar concentrators", Proc. SPIE 7785, Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VII, 77850E (19 August 2010); doi: 10.1117/12.863251; https://doi.org/10.1117/12.863251
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