| Issue |
EPJ Web Conf.
Volume 255, 2021
EOS Annual Meeting (EOSAM 2021)
|
|
|---|---|---|
| Article Number | 02002 | |
| Number of page(s) | 4 | |
| Section | Topical Meeting (TOM) 2- Computational, Adaptive and Freeform Optics | |
| DOI | https://doi.org/10.1051/epjconf/202125502002 | |
| Published online | 18 November 2021 | |
https://doi.org/10.1051/epjconf/202125502002
Freeform design of a two-reflector system to collimate and shape a point source distribution
1 CASA, Department of Mathematics and Computer Science, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, The Netherlands
2 Signify Research, High Tech Campus 7, 5656 AE Eindhoven, The Netherlands
* e-mail: a.h.v.roosmalen@tue.nl
Published online: 18 November 2021
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.
© The Authors, published by EDP Sciences, 2021
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