The Ideal Lovibond Color System for C I E Standard Illuminants an and C Shown in Three Colorimetric Systems (Classic Reprint) - Softcover

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Excerpt from The Ideal Lovibond Color System for C I E Standard Illuminants an and C Shown in Three Colorimetric Systems

Lovibond glasses were introduced into this country from.eng1and at the turn of the century for the purpose of grading vegetable and cottonseed-oils, i.a., of determining their quality and salability. These glasses together with the Lovibond Tintometer were developed in 1887 by Joseph W. Lovibond. Sets of Lovibond glasses were first made available as color standards sometime after 1896 when the company, The Tintometer Ltd., was organized. This Lovibond color system consists of three scales, each represented by a series of glasses; a red, a yellow and a blue. The scales have been calibrated in arbitrary units, but the three units are related in such a way that for daylight illumination a combination of the same number of units of each of the red, yellow, and blue glasses results in an approximately neutral filter. Each glass in the series is identified by the number of unit glasses to which it is equivalent.

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