LED-based changeable color light lamp
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United States of America Patent
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Oct 12, 2010
Grant Date -
Jun 4, 2009
app pub date -
Dec 3, 2007
filing date -
Dec 3, 2007
priority date (Note) -
Expired
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Abstract
Systems and methods are described that facilitate providing a user with interchangeable phosphor-coated shells, or envelopes, for generate different shades and intensities of white light from a single UV light source. The interchangeability of the low-cost phosphor-coated envelopes permits the use of a single light engine, which is the more expensive component of a solid state lamp. In this manner, consumers are provided with a greater number of lighting choices at low cost than can be achieved using conventional single-envelope lamps.
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