Color yield of white LEDs
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United States of America Patent
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Jun 2, 2015
Grant Date -
Mar 26, 2015
app pub date -
Jan 6, 2014
filing date -
Sep 20, 2013
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Abstract
A method of disposing a phosphor material on an LED such that the LED emits white light and adjusting the quantity of phosphor material such that the white light meets a color target. A formulated procedure is used to determine the adjustment required, and includes a correlation between a change in position of a color of an LED on a CIE diagram and a known quantity of phosphor material added to the LED.
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