Inside Out Library
A study of direct and indirect illumination (1912)
Simons, Alexander McDougall · leaf 104
Fig. 16a Indirect ligl ting distribution for Room No.2 \ t)) Points at wich illumination was measuredX A Lamp clusters (2-100 watt lamps each)Scale 1= 5Lighting · Theses
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
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