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 6
of view to OFFICE BUILDINGS AND DRAFTING ROOMS 7 distract the attention and fatigue at the eye. Undue contrastbetween light sources and the background against which they areseen or between any adjacent surfaces in the field of view is objec-tionable. The Mazda C lamp (see Bulletin Index 1), on… … Fig. 4 Common Sense Office Lighting of a Modern Type. In this large clerical office, 150-wattclear Mazda C lamps are used on 10-ft. centers, 4 outlets per bay. The resultantillumination is slightly over 9 foot-candles. A deep, dense, opal, invertedreflector is employed. This unit carries out all…
Lighting · Light bulbs · Light fixtures
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