The Measurement of Colour

absorbed absorption amount of light beam bricks brightness C.I.E. chart C.I.E. system C₁ calculated cell chromaticity chart chromaticity diagram co-ordinates colorimeter colorimetry colour filters colour matching colour measurement colour mixture colour quality colour specification colour temperature cone density desaturated diffusing distribution coefficients distribution curves dominant wavelength dyes energy distribution equal equal-energy field give given glass green and blue Guild illuminant illustrated in Fig incident instrument integrating sphere intensity lamp layer light flux light reflected luminosity curve magnesium oxide matt surface medium method monochromatic Munsell observer patterns photo-cell photo-electric photometer pigment polarising prism problems produce radiations reference stimuli reflection factor refractive index relative retina RGB system Rochon prism S₁ sample saturated scale slit spectral reflection spectral sensitivity spectrophotometer spectrum locus standard Tintometer tion transmission curve trichromatic tristimulus equation unit equation visible spectrum yellow Ελ