Lightguide with controlled numerical aperture for general illumination

Donald J. Schertler; Stephen Chakmakjian; Tasso R. M. Sales; G. Michael Morris

doi:10.1117/12.683969

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12 September 2006 Lightguide with controlled numerical aperture for general illumination

Donald J. Schertler, Stephen Chakmakjian, Tasso R. M. Sales, G. Michael Morris

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Proceedings Volume 6337, Sixth International Conference on Solid State Lighting; 633716 (2006) https://doi.org/10.1117/12.683969
Event: SPIE Optics + Photonics, 2006, San Diego, California, United States

Abstract

Lightguide devices are commonly used in a large number of applications such as light-delivery systems, illumination, and displays. The general approach is to outcouple light from the lightguide without concern for its propagation properties within the guiding material. We introduce the concept of a lightguide with controlled numerical-aperture as it propagates within the guiding substrate and demonstrate the advantages with this approach, compared to other methods commonly used. We also demonstrate the application of our lightguide technology for general illumination with controlled light distribution and high efficiency.

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Donald J. Schertler, Stephen Chakmakjian, Tasso R. M. Sales, and G. Michael Morris "Lightguide with controlled numerical aperture for general illumination", Proc. SPIE 6337, Sixth International Conference on Solid State Lighting, 633716 (12 September 2006); https://doi.org/10.1117/12.683969

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