Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 281
he siderable amount of diffused reflection isobtained, so that the conditions arefavourable to indirect lighting. The factory is divided into bays13 ft. by 20 ft., making an area of 260square feet for each bay. At the centreof each bay is suspended an indirect X-ray fitting with 300 watt lamp.The… … modern type of factory building nowbeing constructed in the LTnited States,for which reinforced concrete is largelyused. The walls and ceilings are finishedin white and the floors are of naturalconcrete. In these circimistances a con- necessary and we understand that theindirect system has given…
Lighting
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