5 years - Sill Lighting

Lighting Planning according to EN 12464-1,issue 2011-08123Designing atmospheresDifferent types of lighting createdifferent interior impressions - asthey also change the characterof the light.1 If working planes are solelyilluminated with direct light,hard shadows result, makingobjects and their details lessdiscernible. The relatively darkceiling seems to be very low.2 Exclusively indirect illuminationgenerates a light atmospherewith little shadow, which oftenappears monotone.This frequently also results inan unfavourable brightnessratio between the relativelydark workplace area and thebright ceiling.3 It is the combination of directand indirect light that providesthe necessary balance of lightand shadow.This makes architecturalfeatures and their surfacetextures, as well as peopleand objects, clearly discernible.123Sympathy with light1 The dark eye area is a result ofthe hard shadows cast bydirect light from above.2 Purely indirect, diffuse lightingblurs the contours at theexpense of clearly recognisablefeatures.3 The mixture of direct andindirect light provides balancedshadows, giving a lively, friendlyappearanceModelling indicatorThe balance between diffuse anddirected light is defined asmodelling. The ratio of horizontalto cylindrical lighting intensity isideal at a value of 0.3 to 0.6.138 WILA