Device and method for emitting output light using multiple light sources with photoluminescent material
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United States of America Patent
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Apr 12, 2011
Grant Date -
Jan 25, 2007
app pub date -
Jul 21, 2005
filing date -
Jul 21, 2005
priority date (Note) -
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Abstract
A device and method for emitting output light utilizes multiple light sources to produce original light having different peak wavelengths. A first light source of the device is configured to generate first light having a peak wavelength in the blue wavelength range, while a second light source of the device is configured to generate second light having a peak wavelength in the red wavelength range. Some of the original light emitted from at least the first light source is converted into light having a peak wavelength longer than the peak wavelength of the original light using a photoluminescent material to produce the output light.
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