Spherical bulb for light-emitting diode with spherical inner cavity
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United States of America Patent
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Feb 16, 2010
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N/A
app pub date -
Nov 27, 2007
filing date -
Jul 24, 2007
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Abstract
A bulb is adapted to fit over and around a light-emitting diode emitting a light of a first hue in a generally Lambertian radiation pattern. The bulb has a generally spherical shape and a substantially circular external cross-sectional geometry, and further defines an inner cavity with a substantially circular cross-sectional geometry for housing the light-emitting diode. The bulb is composed of a light-transmitting material and a light color-converting material, with the light color-converting material converting the light of the first hue into a light of a desired hue, which is then viewed along an external surface of said bulb.
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