Phosphor based illumination system having a light guide, an interference reflector and a display
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United States of America Patent
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Apr 15, 2008
Grant Date -
Jun 28, 2007
app pub date -
Mar 5, 2007
filing date -
Jun 30, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
An illumination system including a light source, a light guide including an output surface, emissive material positioned to receive light from the output surface of the light guide, and an interference reflector positioned such that the emissive material is between the output surface of the light guide and the interference reflector is disclosed. The light source emits light having a first optical characteristic. The emissive material emits light having a second optical characteristic when illuminated with light having the first optical characteristic. The interference reflector substantially transmits light having the second optical characteristic and substantially reflects light having the first optical characteristic.
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