Freeform design of a two-reflector system to collimate and shape a point source distribution

We present a method to design a freeform two-reflector system to collimate and shape a beam from a point source. An important generalization compared to previous research is that the output beam can be in an arbitrary direction. The design problem is based on a generalized Monge-Ampère equation. Thi...

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Veröffentlicht in:EPJ Web of conferences 2021, Vol.255, p.2002
Hauptverfasser: van Roosmalen, A.H., Anthonissen, M.J.H., IJzerman, W.L., ten Thije Boonkkamp, J.H.M.
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Sprache:eng
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Zusammenfassung:We present a method to design a freeform two-reflector system to collimate and shape a beam from a point source. An important generalization compared to previous research is that the output beam can be in an arbitrary direction. The design problem is based on a generalized Monge-Ampère equation. This equation is solved using a least-squares algorithm for non-quadratic cost functions. We test our algorithm on two cases, first, uniform source and target distributions, and second, an elliptic Gaussian intensity of a laser diode to a ring-shaped illuminance. We are able to obtain good solutions in both cases.
ISSN:2100-014X
2101-6275
2100-014X
DOI:10.1051/epjconf/202125502002