5 years - Sill Lighting

Cylindrical illuminanceGood visual communication andrecognition demand an adequatedegree of brightness especiallyfor faces. This is achieved by anadequate mean cylindricallighting intensity in areas wherepeople work or move around.E Z in areas for sedentary personsat a height of 1.2 m and forstanding persons at a height of1.6 m above the floor:E Z > 50 lxU 0 > 0.10Recommendation for visual communicationin offices, conferenceand teaching rooms:E Z > 150 lxU 0 > 0.10Lighting that gives depth andtextureEvery material has its own intrinsicradiance and, depending on thefinish, the same material cancreate wide-ranging effects.These effects can in turn alterdrastically under the influence ofdifferent lighting characteristics.Light that is strongly oriented andunder a flat angle of incidencebrings about surface roughnessand/or -structure more strongly;material unevenness causesstronger formation of shadow.Natural material characteristics,such as grain, graining or inclusions,but also formed structureslike joints or stamped texturescan be reinforced in their designexpression. Diffuse, soft lightallows textures to recede intothe background due to lack ofshadow, as result of the stronglyscattered light reflection.Surfaces therefore appear morehomogeneous, material effectgets a soft character.Rough concrete, hard side lightingRough concrete, soft side lightingFine corrugated sheet steel, lenghtwayhard side lightingFine corrugated sheet steel, lenghtwaysoft side lightingPolished wood, hard side lightingPolished wood, artificial spot light anddiffuse illuminationwww.wila.com 139