Project: Osram Opto reception lit entirely by LEDs

Aug 25, 2009 In a new reception building at OSRAM Opto Semiconductors’ head office in Regensburg (Germany) all the lighting functions – workspace, general room, effects and outdoor lighting – are handled by LEDs.

There are no ceiling lights in the visitor reception area. A 17 square metre wall of light, which consists of a highly elastic, translucent foil only 0.4mm thick, provides variable lighting conditions. In the panel’s frame there are LED strips (“LI-EX profiles”), which emit their light sideways, i.e. parallel to the wall. The profiles of luminaire manufacturer LI-EX on the upper and lower screen frames are fitted with warm and cold white Golden Dragon Plus LEDs, the profiles on the right and left with colored Golden Dragon RGB LEDs. Thus the wall of light is capable of dynamically displaying all the chromaticity coordinates between warm and cold white but also colors and moving color transitions.

LED strips in red, green and blue were also installed behind the large, four square metre glass area of the visitor counter and enable an extraordinary variety of lighting set-ups. Behind the counter the diodes backlight the monitors and provide room lighting for an ergonomic and fatigue-free working environment.

White Power TopLEDs were used for the mirror and ceiling lighting in the lavatories, for example, as well as for accent lighting on door frames. Outside LEDs illuminate the pathway and handrail.

A remarkable feature of the building lighting is that there are almost no visible lamps and light switches. The wall of light, for example, is controlled via a Traxon touch-wheel.


The reception building of OSRAM Opto Semiconductors in Regensburg (Germany) is one of the first
buildings in Germany that is lit completely by LEDs inside and out.


The wall of light provides all the lighting for the visitor area. With various lighting scenarios the 17 square
metre area produces various degrees of brightness and moods.


Author:  Ray Andersson

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