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 154
yclosely the sum of the luminosities agree amongst COLOUR MEASUREMENT AND MIXTURE. 151 themselves, the white light formed by them in eachcase being of equal intensities. It must be recol-lected that white light is not necessary to formcolour equations; colours may be mixed to formany other colour,… … Fig. 35.—Koenigs Curves of Colour Sensations. By taking a large number of colour equations,Koenig, who works in Helmholtzs laboratory, hasderived what he considers curves of the threefundamental sensations in a normal-eyed person,and also those of the colour-blind. It may be saidthat with the…
Color
Internet Archive · Getty Research Institute · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Works. Popular edition.] 2 series (1886)](https://img.insideoutlibrary.com/img/200/bl-bl_003191336_5-285-1.webp)
![An illustration from Histoire de mes ascensions : récit de vingt-quatre voyages aériens [1868-1877] (1880)](https://img.insideoutlibrary.com/img/200/ia-39002011210615.med.yale.edu-281-24.webp)