4 papers
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…
Numerical Methods for the Hyperbolic Monge-Ampère Equation Based on the Method of Characteristics
Maikel W. M. C. Bertens, Ellen M. T. Vugts, Martijn J. H. Anthonissen +2
We present three alternative derivations of the method of characteristics (MOC) for a second order nonlinear hyperbolic partial differential equation. The MOC gives rise to two mut…
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…
Systematic design of the color point of a white LED
Maryna L. Meretska, Gilles Vissenberg, Ad Lagendijk +2
Lighting is a crucial technology that is used every day. The introduction of the white light emitting diode (LED) that consists of a blue LED combined with a phosphor layer, greatl…