Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 79
ee candlepower, butthey are not yet in use. Measurementsof the latest lamps in use will be givenbelow. The light of both oil and electric lampsis broken up by the standards, and variesconsiderably according to whether afull or side flame is turned towards theobserver. Graph I. shows the variationin… … Fig. 1.—Showing variation in candlepower of lamps and effect of standards, S.Equidistant measurements taken at the circumference of a circle 2 ft. in radiusX 4 to give candlepower of lamp in a horizontal plane. Hailwood combustion lamp (clean). Oldham electric lamp (after six hours use).
Lighting
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