tianny99:Based on the white color-coordinate(x,y), we can obtain a factor of n firstly,
.nN=M>#/ n=(x-0.3320)/(0.1858-y),
x`T then, we can calculate CCT(Correlated Color Temperature) as following,
n%'M?o]DF CCT=437*n^3+3601*n^2+6831*n+5517
(2008-07-22 16:05)
-e<d//>