In order to avoid problems of fatigue and to generate a feeling of wellbeing in an interior it is important to create a uniform distribution of luminance. This involves maintaining a certain uniformity of illuminance at the work plane, expressed as the ratio of minimum to mean illuminance. For the ambient lighting in office interiors, this ratio should be greater than 1:1.5 (EN 12464, Part 1).
Modified on: Wed, 29 Jun, 2016 at 9:12 AM
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