Volume scattering characterization for illumination design

Quentin Kuperman-Le Bihan

doi:10.1117/12.981995

18 December 2012 Volume scattering characterization for illumination design

Quentin Kuperman-Le Bihan

Proceedings Volume 8550, Optical Systems Design 2012; 85502K (2012) https://doi.org/10.1117/12.981995
Event: SPIE Optical Systems Design, 2012, Barcelona, Spain

Abstract

Optical design tools allow more and more complete physical phenomena simulation and illumination design itself becomes more and more complex. A big part of these designs uses volume scattering materials. However, those are not yet implemented in such tools. For this reason we worked on a way to characterize volume scattering materials. How can we characterize and implement volume scattering materials in optical design tool for illumination design? We worked on two ways of characterizing volume scattering materials based on real Bidirectional Scatter Distribution Function (BSDF) measurements made with Reflet bench. LightTools software with its Henyey-Greenstein and Mie scattering model was also used in the process of material characterization. The study showed that the results with both Henyey and Mie characterization, allow simulation of volume scattering materials within of 5% precision compare to real measurements. Thanks to such simulations it is now possible to have custom shape illumination design using volume scattering materials from a library. Sony Ericson was the first user to benefit from these study’s results.

Citation Download Citation

Quentin Kuperman-Le Bihan "Volume scattering characterization for illumination design", Proc. SPIE 8550, Optical Systems Design 2012, 85502K (18 December 2012); https://doi.org/10.1117/12.981995

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