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Conferences > IODC > 2021 > JS > 120781T
  • OSA Optical Design and Fabrication 2021 (Flat Optics, Freeform, IODC, OFT)
  • OSA Technical Digest (Optica Publishing Group, 2021),
  • paper 120781T
  • •https://doi.org/10.1117/12.2603680

Design of a Freeform Refractive Surface with Reflection Loss for Illumination

Weitao Song, Chen Xu, Yue Liu, and Yongtian Wang

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Abstract

We have proposed a design method of a freeform refractive surface for illumination using multiple faceted refractors. The reflection loss on the refractive surface also has been considered during the design process. As an example, a smooth freeform lens with uniform illumination distribution is designed. Compared with the direct method without consideration of the loss of energy, the method achieved a great improvement in the uniformity of illumination distribution with no loss of output efficiency.

© 2021 SPIE

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