Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 286
be avoided. Mr. Trotter hasmentioned that he shot better on an out-door range than on one illuminated in theusual artificial manner (see p.254). Whenvisiting this outdoor range with Mr.Trotter I measured the contrast betweenthe white target and the dark boardsbehind it and found the ratio to be…
Lighting
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