Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 71
ional LampWorks of the General Electric Co., Cleve-land, U.S.A.), describing various applica-tions of the various electric units designedto produce their light very similar tonormal daylight. We are olso indebtedto Mr. Lueki^sh for the illustrationsaccompanying this note. There is some dfficultj in… … Fig 2.—New York Cotton Exchange. Classi-fication Room illuminated by Nela colour-matching units of the precision pattern. naturally this quantity would not bequite the same in different localities, in aclear atmosphere and in a foggy city. Following these experiments a scries ofunits has been…
Lighting
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