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SMARTPaper: Optical Design and Analysis using TracePro

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The reflected and transmitted scattering of light in a luminaire can play a major role in the performance of the luminaire. Many times, this is the reason the actual luminaire performance does not match the results predicted in optical modeling, design, and analysis software. Typically scattering is measured using a scatterometer and modeled using the BSDF, the bidirectional scattering distribution function. This procedure can be difficult when the scattering features are large when compared to the illuminating beam used in the scatterometer. This paper looks at a method using a combination of BSDF data and CAD models to provide a work around to this limitation.


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