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¡±Tektronix model J17 colorimetry 1931 CIE color coordinate system
white 92.46 cd/m2
red x=.642 y=.327 22.62cd/m2
blue x=.152,y=0.67 9.66 cd/m2
green x=.318,y=.569 64.99 cd/m2
black (<0.01 cd/m2)
yellow x=.478,y=.452 65.23 cd/m2
purple x=.304,y=.149 7.04 cd/m2
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http://hy-chou.blogspot.tw/2013/02/color-binning-led.html

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