the challenge was to implement the lighting concept in the entrance area of the newly redesigned station

This license agreement with Cooper follows earlier agreements between Philips and more than 100 companies, amongst which key lighting players like Acuity Brands, Osram and Zumtobel. Philips’ licensing program includes many LED luminaire and bulb-related inventions of Philips. Philips aims to led linear high bay light speed up market adoption and growth of LED-based products by making available its market-leading patented LED luminaire and retrofit bulb technologies to third parties.

For decades, OSRAM’s former slogan – “Hell wie der lichte Tag– As bright as broad daylight" has been gracing the facade of buildings at Munich's Karlsplatz roundabout. Now the light manufacturer is also represented in the underground area of this bustling city-centre square, in the form of its subsidiary OSRAM Opto Semiconductors: the challenge was to implement the lighting concept in the entrance area of the newly redesigned station (for the S-Bahn suburban network and U-Bahn city metro). Schmidt-Knig, planning office for lighting, and light experts LI-EX constructed their plans based on LED from the Regensburg-based semiconductor manufacturer. The result is a Stachus with brilliant illumination and a low requirement for maintenance resources.

Since June 2010 the entrance area of the S-Bahn and U-Bahn station and the "Stachus Passagen"  at Munich's Karlsplatz has been reconstructed; in this process, a new lighting concept has been put into effect. In its project management capacity, the Munich-based Schmidt-K?nig planning office for lighting decided for several reasons in favour of using the led high bay light solutions provided by LI-EX, the Regensburg-based lighting specialist. It was particularly important for Michael Schmidt and the team to get good longevity of the lamps, to keep service costs low. The lighting technology used also needed to save space and, at the same time, provide high output with defined light-radiating characteristics.

In the course of the eleven-month refurbishment project beneath the Stachus, a total of 65,000 LEDs sourced from OSRAM Opto Semiconductors were installed into the LI-EX profile. The latter is characterised by its flexibility: the distances between the LEDs are freely selectable, and lengths ranging up to three metres can be supplied.