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Here is a method besed on CIE1931 system: 7Y~5gn
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1) Try to find the intersection point of CIE1931 standrad curve and the following line: !^L}LtqHI
y=k*(x-0.3333) + 0.3333 QP<P,Bi~
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k=(yo-0.3333)/(xo-0.3333) and (xo,yo) is the known color coordintae point. k(>J?\iNW
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2) the wavelength of the intersection point will be the dominant wave to be determined. EX<1hAw
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If you need further help, I can share an Excel file. J.2BBy
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Let me know how thing's going. a&[[@1OY
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Hope helpful. Qh3+4nLFtb
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Mang