Compound surface descriptions in illumination design

Abstract

The use of Freeform surfaces in illumination systems continues to increase. We explore the approach of combining a NURBS surface with an analytic surface and the impact on optimization and tolerancing. ©2021 Optical Society of America OCIS codes: (110.2945) Illumination design, (150.2950) Illumination, (080.4298) Nonimaging optics