What is the basic minimum illumination required for satisfactory vision?-
(PARK TB 23rd edtn pg 739) The lighting should be sufficient to enable eye to discern the details of an object as well as the surroundings without eye strain. An illumination of 15 to 20 candles is accepted as the basic minimum for satisfactory vision.
10-15 foot candles
15-20 foot candles
20-25 foot candles
25-30 foot candles
Environment and health