BYK byko-spectra Instrucciones De Uso página 14

Connecting the byko-spectra to a Power Supply
14
the quality of the color match is conditional to the
type of light source under which it is viewed.
While it may not be possible, with the colorants
available, to completely eliminate metamerism, the
byko-spectra provides colorists with the means
of visually "indexing" the degrees of metamerism
under three spectrally dissimilar light sources. The
formulation may then be adjusted to provide the
"best match" under a specified lighting condition,
or the least metameric match under all three
lighting conditions.
For obtaining the best correlation with instrumental
measurements, calculated color differences and
metameric indices, the spectral power distribution
of the sources in the booth should be used in the
computations.