Phosphor based light sources having a non-planar long pass reflector
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United States of America Patent
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Aug 15, 2006
Grant Date -
Jul 29, 2004
app pub date -
Dec 2, 2003
filing date -
Jan 27, 2003
priority date (Note) -
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Abstract
A light source includes an LED that emits excitation light, an optically transparent body, a phosphor material positioned to receive the excitation light and disposed on or in the optically transparent body, the phosphor material emitting visible light when illuminated with the excitation light, and a non-planar flexible multilayer reflector that reflects the excitation light and transmits visible light. The non-planar polymeric multilayer reflector is positioned to reflect LED light onto the phosphor material.
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