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High efficiency source coupler for optical waveguide illumination system

United States Patent

6,128,431
October 3, 2000
View the Complete Patent at the US Patent & Trademark Office
Lawrence Berkeley National Laboratory - Visit the Technology Transfer and Intellectual Property Management Department Website
A fiber optic or optical waveguide illumination system includes a source coupling system. The source coupling system includes an optical channel with an internal cavity. A light source is disposed inside the driving circuit. Coupling losses are minimized by placing the light source within the optical channel. The source cavity and the source optical channel can be shaped to enhance the amount of light captured in the channel by total internal reflection. Multiple light distribution waveguides can be connected to the source coupling channel to produce an illumination system.
Siminovitch; Michael J. (Pinole, CA)
The Regents of the University of California (Oakland, CA)
09/ 169,021
October 8, 1998
STATEMENT OF GOVERNMENT INTEREST This invention was made pursuant to contract No. DE-AC03-76SF00098 between the U.S. Department of Energy and the University of California. The U.S. Government retains certain rights in this invention.