Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 477
Fig. 7.—The light in this case is wastedand hadly distributed. Fig. 8.—The reader here throws his ownshadow on the paper. 470 THE ILLUMINATING ENGINEER (nov.) … Fig. 9.—The maximum light in this case is thrown on to the stand,not on the paper.
Lighting
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