Freeform gradient-index optics for prescribed illumination

David H. Lippman; Rongze Xu; Greg R. Schmidt

doi:10.1117/12.2641187

3 October 2022 Freeform gradient-index optics for prescribed illumination

David H. Lippman, Rongze Xu, Greg R. Schmidt

Proceedings Volume 12220, Nonimaging Optics: Efficient Design for Illumination and Solar Concentration XVIII; 1222005 (2022) https://doi.org/10.1117/12.2641187
Event: SPIE Optical Engineering + Applications, 2022, San Diego, California, United States

Abstract

A new type of prescribed illumination optic is presented that leverages newly available freeform gradient-index (F-GRIN) media. Using F-GRIN to impart freeform optical in fluence, only plane-parallel surfaces are required, and by additive manufacturing, designs can directly incorporate gradient discontinuities. The design process is surveyed, and several designs are demonstrated for generating both binary and grayscale illumination targets from a point source. Fabricated designs are presented for the first time, verifying that F-GRIN optics present a flexible, new way of generating a prescribed illumination distribution.

Conference Presentation

Citation Download Citation

David H. Lippman, Rongze Xu, and Greg R. Schmidt "Freeform gradient-index optics for prescribed illumination", Proc. SPIE 12220, Nonimaging Optics: Efficient Design for Illumination and Solar Concentration XVIII, 1222005 (3 October 2022); https://doi.org/10.1117/12.2641187

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