The lighting of office buildings and drafting rooms / information compiled by A.L. Powell. (1920)
General Electric Company, Edison Lamp Works · General Electric Co., Edison Lamp Works · leaf 3
roperly installed high intensity lighting in the office willincrease production and reduce the number of absentees. A careful consideration of the subject shows past standardsof intensity to be too low. An analysis of the standards recom-mended in typical text books and handbooks shows the… … Fig. i General Direct Lighting in I Cleric*] Office. Small Mazda lamps are employed inprismatic bowl-shaped reflector*. These are closely spaced and provide | highintensity of illumination The light at any point is re<< m d from anumber of sources. The inner surface of the reflector is…
Lighting · Light bulbs · Light fixtures
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