Light impact and luminaire arrangements
Light for walls: room height 6-10m
Wallwashing with double focus lens wallwashers
Prestigious architecture often impresses merely by the dimensions of its rooms. High rooms place particular demands on wallwashing because people perceive around 80% of their visual information via vertical surfaces. Vertical lighting underlines a clear and extensive spatial effect. It also ensures the soft and even appearance of the wall surfaces. The quality attributes of wallwashing are high horizontal and vertical uniformity.
Arrangement of double focus lens wallwashers
For the vertical lighting of high walls with room heights of 6-10m, double focus wallwashers specifically developed for such applications are especially suitable. Even at relatively short distances to the wall, their special optics emit sufficient light down to the lower edge of the wall surface to achieve uniform illumination. The following rule of thumb applies for luminaire arrangement: the optimum distance to the wall (a) is one-fifth of the room height. For good horizontal uniformity, the luminaire spacing (d) should be equal to or less than 1.3 times the distance to the wall (a). a = 1/5 x h d ≤ 1.3 x a
