Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 588
ore be of interest. Figs. 1 and 2 illustrate the use of semi-indirect lighting in a drawing room which to the walls seems to be consideredcorrect. A small room can thus be hghted quitewell by a single central unit. The con-sumption of electricity in this caseis less than J watt per sq. ft. In… … Fig. 1.—Drawinj Room lif^htcd by ;i siiia-le central alabaster setni-indirect unit. is approximately 19 ft. long and 12 ft.broad. It is completely lighted by a singlealabaster bowl containing thr^e 20-wattlamps. The illumination in the centre ofthe room is about 1-8 foot-candles and inthe far…
Lighting
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