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LabSpion user guide
the radiated light does not meet the criteria for white light or
that light levels are too low to be measured.
8. At maximized view is the color radiated shown as x,y
coordinates in a CIE1931 diagram. The CIE1931 diagram
illustrates all colors visible to the human eye, and is based
on experiment made in 1931 with a series of test persons to
find out how the human
eye observes colors.
The black line in
diagram is called the
black body curve and
illustrates all colors that
are defined as white
colors from warm to
cold. The point of the
measured color is shown with a black cross and can be
used to check the whiteness of a color, by checking how
close it is to the black body curve, the closer to the black
body curve the more accurate white is the color.