Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 180
ds ofreflectors and shades, their shape and angle, and also the varying effects ofdifferent kinds of globes—clear, frosted,opal, &c. Also the different effects ofbright and reflective and dark and dullceilings and surroundings, includingthe goods them-selves. The matter ofheights and spacing… … Cckthi oflakp 39/ikhis f»omHdtkai TtsrSunrActFig. 18.—Curves showing Intensities of Illu-mination at Different Heights (Low PressureLamps ift. apart). loom to deal with these points, but Itrust that what has been said and shownmay help to add interest to the subjectand promote good discussion…
Lighting
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