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Light and lighting (1908)

Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 21

An illustration from Light and lighting, 1908, leaf 21
one600 watt clear tungsten and one 300 watt cleartungsten lamp. A section and elevation isshown in the accompanying plan (see Fig. 1). Height of light source, 17 feet above stage. Resulting illumination shown in detail onaccompanying plan (sec Fig. 2). Average, 13 foot-candles. Maximum, 20… … Fig. 4.—Photoiiraph of portion of stage(Queens Hall. Peoples Palace), showingoverhead reflectors for platform lij^hting. I may mention that the special designof the above mentioned reflectors wasmade necessary by the fact that onlylamps with ordinary filaments occupyinga considerable space were…

Lighting

Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.

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