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Updated: Jul 31, 2025

Measuring Spatially- and Directionally-varying Light Scattering from Biological Material
Published on: May 20, 2013
Two-dimensional freeform reflector design with a scattering surface
Abstract:
We combine two-dimensional freeform reflector design with a scattering surface modeled using microfacets, i.e., small, specular, surfaces representing surface roughness. The model resulted in a convolution integral for the scattered light intensity distribution, which yields an inverse specular problem after deconvolution. Thus, the shape of a reflector with a scattering surface may be computed using deconvolution, followed by solving the typical inverse problem of specular reflector design. We found that the presence of surface scattering resulted in a few percentage difference in terms of reflector radius, depending on the amount of scattering in the system.
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