Turn-mixer with spatial and angular uniformity

William J. Cassarly

doi:10.1117/12.3016542

17 June 2024 Turn-mixer with spatial and angular uniformity

William J. Cassarly

Proceedings Volume 13022, Illumination Optics VII; 130220G (2024) https://doi.org/10.1117/12.3016542
Event: SPIE Optical Systems Design, 2024, Strasbourg, France

Abstract

Uniformity is a critical performance issue in illumination design. When Etendue is considered, the two main options to achieve uniformity are mixing rods and lens arrays. Mixing rods are quite effective, but they often require a large package size. We have explored a Turn-Mixer concept based on a turn prism with TIR surfaces and embedded partial mirrors. This approach provides uniformity in a small package size. And, by using two Turn-Mixers, both spatial and angular mixing can be achieved.

Conference Presentation

Citation Download Citation

William J. Cassarly "Turn-mixer with spatial and angular uniformity", Proc. SPIE 13022, Illumination Optics VII, 130220G (17 June 2024); https://doi.org/10.1117/12.3016542

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