Colour measurement and mixture. Published under the direction of the Committee of General Literature and Education appointed by the Society for Promoting Christian Knowledge (1891)
Abney, William de Wiveleslie, Sir, 1843-1920, Society for Promoting Christian Knowledge (Great Britain). General Literature Committee · London: Society for promoting Christian knowledge; New York, E. & J. B. Young & co. · leaf 103
—< i ■ ■ -2. b ,3 —< < c / a— k d k 18 17 18 1$ 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 * • s I Fig. 17.—Absorption by Red, Blue, and Green Glasses. scale of the spectrum the number n. The curveshows that at that particular part of the spectrumwhich lies in the blue, the blue glass only… … COLOUR MEASUREMENT AND MIXTURE. IOI From such curves as these we can readily derivethe luminosity curves of the spectrum, after thewhite light has passed through the coloured object.All we have to do is to alter the ordinates of theluminosity curve of white light in the proportion tothe intensities…
Color
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