Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 207
UMINATIXG ENGINEER ai-rii.) such a calculation, the table for LampIII. is given, and the final table for thelong centre line of the room, Bhowingthemethod of collecting values together. In all these tables, h vertical ln-i^htof lamp above reference plane, 0 angle The mean of all the calculated… … l Workshop lighted by tungsten lamps in metal reflectors horizontal illumination from vertical <>f line joining lamp with[MPint considered, and 1 intensity incandle-power in this direction read offfrom the polar curve. The horizontal illumination in the last column is calcu-lated from the…
Lighting
Internet Archive · University of Toronto Libraries · Public Domain Mark 1.0. Free to use for anything.
