Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 197
Indirect Lighting of a Large Dome. An interesting a])plicati()n ol tlie in- tungsten lamps, eaeh e(juippe(l with direct system to the lighting of a large its own silvered retiector. The lamps domed interior is shown in the accom- are all on .separate circuits, controlled panying illustration. The… … Scientist in Chicago, is (iOft. in dia- easily varied as required. I\ir clean-meter, and rises to a lieighl of r)l»ft. ing or renewing the lain])s. the wliolefrom the floor. One single central tixtmC can be lowered to tbe groundfitting is responsible for the illumina- by means of a worm gear. For…
Lighting
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
