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Here is a method besed on CIE1931 system: 1wX0x.4d
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1) Try to find the intersection point of CIE1931 standrad curve and the following line: (Sr D
y=k*(x-0.3333) + 0.3333 0{0|M8
here W'l
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k=(yo-0.3333)/(xo-0.3333) and (xo,yo) is the known color coordintae point. :x*|?zII
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2) the wavelength of the intersection point will be the dominant wave to be determined. /%w9F
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If you need further help, I can share an Excel file. 2!Ip!IQ:
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Let me know how thing's going. \ W3\P=
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Hope helpful. 4l0ON>W(
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Mang