colour stimulus function
function describing the spectral distribution of the colour stimulus
Note 1 to entry: The colour stimulus function is generated by the spectral distribution of a radiometric quantity, such as radiance or radiant flux.
Note 2 to entry: For object colours the colour stimulus function,
Note 3 to entry: This entry was numbered 845-03-03 in IEC 60050-845:1987.
Note 4 to entry: This entry was numbered 17-230 in CIE S 017:2011.