3 papers
physics.optics2021
Modelling Surface Light Scattering in the Context of Freeform Optical Design
Vì C. E. Kronberg, Martijn J. H. Anthonissen, Jan H. M. ten Thije Boonkkamp +1
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. F…
physics.optics2021
Design of a freeform two-reflector system to collimate and shape a point source distribution
A. H. van Roosmalen, M. J. H. Anthonissen, W. L. IJzerman +1
In this paper we propose a method to compute a freeform reflector system for collimating and shaping a beam from a point source. We construct these reflectors such that the radiant…
math.NA2020
A generalised complete flux scheme for anisotropic advection-diffusion equations
Hanz Martin Cheng, Jan ten Thije Boonkkamp
In this paper, we consider separating the discretisation of the diffusive and advective fluxes in the complete flux scheme. This allows the combination of several discretisation me…