Modelling Surface Light Scattering in the Context of Freeform Optical Design

We present a novel approach of modelling surface light scattering in the context of freeform optical design. The model relies on energy conservation and optimal transport theory. For isotropic scattering in cylindrically or rotationally symmetric systems with in-plane scattering, the scattered light...

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Bibliographic Details
Published in:arXiv.org 2021-06
Main Authors: Kronberg, Vì C E, Anthonissen, Martijn J H, Jan H M ten Thije Boonkkamp, IJzerman, Wilbert L
Format: Article
Language:English
Subjects:
Context
Convolution
Light distribution
Light scattering
Modelling
Optical design
Optical properties
Scattering functions
Transport theory
Online Access:Get full text
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Summary:We present a novel approach of modelling surface light scattering in the context of freeform optical design. The model relies on energy conservation and optimal transport theory. For isotropic scattering in cylindrically or rotationally symmetric systems with in-plane scattering, the scattered light distribution can be expressed as a convolution between a scattering function, which characterises the optical properties of the surface, and a specular light distribution. Deconvolving this expression allows for traditional specular reflector design procedures to be used, whilst accounting for scattering.
ISSN:2331-8422