On a chromaticity diagram, a line is drawn from a white point through the coordinates of the color in question, until it intersects the spectral locus.
32.
From the commonly used CIE 1931 chromaticity diagram, it can be seen that almost all combinations of spectral colors, and therefore by infinitely many different illuminant spectra.
33.
Mathematically, " x " and " y " are projective coordinates and the colors of the chromaticity diagram occupy a region of the real projective plane.
34.
When plotted on the CIE chromaticity diagram, it can be seen that this is a hue corresponding to that of a visual stimulus of approximately 380 nm on the spectrum.
35.
It will be seen as blue substance ( one point on chromaticity diagram ), but give a signal in negative color yellow ( also one point on chromaticity diagram ).
36.
It will be seen as blue substance ( one point on chromaticity diagram ), but give a signal in negative color yellow ( also one point on chromaticity diagram ).
37.
The first type produces colors that are similar to the spectral colors and follow roughly the horseshoe-shaped portion of the CIE xy chromaticity diagram, leading to magenta-like colors.
38.
One may mix two monochromatic lights and not see a shift in hue, thereby suggesting a straight-line plot for the different levels of mixture would be appropriate on a chromaticity diagram.
39.
Furthermore, because of the widely tunable QD emission, it s possible to have near UV-pumped QD-LEDs with combinations of QDs which emit virtually any color on the chromaticity diagram.
40.
This system implies that for any hue or non-spectral color not on the boundary of the chromaticity diagram, there are infinitely many distinct physical spectra that are all perceived as that hue or color.
