ALTANA Byko-Spectra Manual - Manuel (Page 13)


%NGLISH
#ONNECTING¬THE¬BYKO
SPECTRA¬TO¬A¬0OWER¬3UPPLY
THE¬QUALITY¬OF¬THE¬COLOR¬MATCH¬IS¬CONDITIONAL¬TO¬THE¬
TYPE¬OF¬LIGHT¬SOURCE¬UNDER¬WHICH¬IT¬IS¬VIEWED¬
7HILE¬IT¬MAY¬NOT¬BE¬POSSIBLE ¬WITH¬THE¬COLORANTS¬
AVAILABLE ¬TO¬COMPLETELY¬ELIMINATE¬METAMERISM ¬THE¬
BYKO
SPECTRA¬PROVIDES¬COLORISTS¬WITH¬THE¬MEANS¬
OF¬VISUALLY¬hINDEXINGv¬THE¬DEGREES¬OF¬METAMERISM¬
UNDER¬THREE¬SPECTRALLY¬DISSIMILAR¬LIGHT¬SOURCES¬4HE¬
FORMULATION¬MAY¬THEN¬BE¬ADJUSTED¬TO¬PROVIDE¬THE¬
hBEST¬MATCHv¬UNDER¬A¬SPECIlED¬LIGHTING¬CONDITION ¬
OR¬THE¬LEAST¬METAMERIC¬MATCH¬UNDER¬ALL¬THREE¬
LIGHTING¬CONDITIONS
&OR¬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