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 108
pigment Template,absorbs. The spectrum, when recombined, shouldgive a patch of the exact colour of that measured.The spectrum must be made narrow, as the tem-plate is only theoretically correct for a spectrumof the width of a line, as can be readily seen. Templates like these will always enable… … 106 COLOUR MEASUREMENT AND MIXTURE. that which the pigment would reflect if it wereviewed in that light. The identity of the colour produced on thescreen by this plan with that measured, can bereadily seen by placing the latter in the reflectedbeam of white light alongside the coloured patchformed…
Color
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![An illustration from L'optique divisée en trois livres : ou, l'On démontre d'une maniere aisée tout ce qui regarde 1. la propagation & les proprietez de la lumiere. 2. La vision. 3. La figure & la disposition des verres qui servent à la perfefectionner [sic] (1682)](https://img.insideoutlibrary.com/img/200/ia-loptiquedivise00ango-77-8.webp)
