Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 50
coefficient is given as relative to that of zinc white which itself possesses atotal reflecting power of at least 80 per cent., and has a very regular reflection throughoutthe spectrum. Three fairly typical dyes are included (coated in a wash on white cartridgepaper). qualities, the general trouble… … -Percentage Energy Reflection Curvesof Pigments. (1) Emerald Green ; (2) Crystal Green (dye);(3) Ultramarine ; (4) Vermilion. to a high reflection coefficient for thelonger wave lengths in the red. Emerald green is the only one amongstthe pigments which disposes satisfactorilyof the red, and there…
Lighting
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