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Proceedings Paper

Lightguide with controlled numerical aperture for general illumination
Author(s): Donald J. Schertler; Stephen Chakmakjian; Tasso R. M. Sales; G. Michael Morris
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Paper 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.

Paper Details

Date Published: 12 September 2006
PDF: 10 pages
Proc. SPIE 6337, Sixth International Conference on Solid State Lighting, 633716 (12 September 2006); doi: 10.1117/12.683969
Show Author Affiliations
Donald J. Schertler, RPC Photonics, Inc. (United States)
Stephen Chakmakjian, RPC Photonics, Inc. (United States)
Tasso R. M. Sales, RPC Photonics, Inc. (United States)
G. Michael Morris, RPC Photonics, Inc. (United States)


Published in SPIE Proceedings Vol. 6337:
Sixth International Conference on Solid State Lighting
Ian T. Ferguson; Nadarajah Narendran; Tsunemasa Taguchi; Ian E. Ashdown, Editor(s)

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