Modelling Surface Light Scattering in the Context of Freeform Optical Design

2021/06/03 by Kronberg, Vì C. E., Anthonissen, Martijn J. H., Boonkkamp, Jan H. M. ten Thije +1
#78A05 #78A45 #78A46 #FOS: Physical sciences #Optics (physics.optics)

paper · doi:10.48550/arxiv.2106.01691

Abstract

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.

Related

• Three-Dimensional Freeform Reflector Design with a Microfacet Surface Roughness Model
• A mathematical model for inverse freeform design of a point-to-point two-reflector system
• Modeling reflection and refraction of freeform surfaces
• Inverse methods for freeform optical design
• Numerical simulations of scattering of light from two-dimensional surfaces using the Reduced Rayleigh Equation