COLOR TEMPERATURE TUNABLE LED LIGHT SOURCE
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United States of America Patent
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N/A
Issued Date -
Feb 16, 2012
app pub date -
Aug 13, 2010
filing date -
Aug 13, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A color temperature tunable LED light source. An apparatus is provided that includes a substrate, a first group of LED chips mounted on the substrate and configured to produce first color temperature light having a first intensity value determined from a first drive current, and a second group of LED chips mounted on the substrate and configured to produce second color temperature light having a second intensity value determined from a second drive current, wherein the first color temperature light and the second color temperature light combine to produce light having a resulting color temperature and a resulting intensity value.
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