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Effectiveness of indirect illumination (1909)

Arnold, Ross Harper, Hadley, Homer Langdon · leaf 80

An illustration from Effectiveness of indirect illumination, 1909, leaf 80
F 1. s. s. ronw 3 34 DIRECT SYSTEM—aqUAL WATTS. Four four candle power lamps, total of 18 candle pov.-er, 119 watts, Holophane shades over lamps, —GRi,SN WALLS- No. A B C D E P G H 2 —- 0,38 0.40 0.40 0.38 — - 3 —— 0.33 0.44 0.52 0.52 0.45 0.34 —- 4 0.36 0.46 0.53 0.53 0.43 0.38 — — 5 —— 0.34 0.44…

Lighting · Theses

Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.

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