LED based light engine
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United States of America Patent
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-
Aug 31, 2010
Grant Date -
Oct 18, 2007
app pub date -
Oct 30, 2006
filing date -
Apr 12, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
A light emitting diode (LED) based light engine that can replace a conventional PAR type bulb with no modifications to a host lighting fixture is provided. The light engine includes a thermally conductive housing including a generally cylindrical wall defining a cavity, an outer surface of the wall includes a plurality of axially radiating fins and disposed on an inner surface of the wall is an annular center wall dividing the cavity into a first, upper cavity and a second, lower cavity; a light module including at least one LED is disposed in the first, upper cavity and configured to contact the annular center wall, wherein heat generated by the at least one LED is disposed in the second, lower cavity and electrically coupled to the light module.
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