Jul 27 2007
The new facade of the Regensburg shopping centre, KÖWE, captivates shoppers with a myriad of harmonised colour changes.
This unusual optical impression is achieved by 2,448 Golden Dragon LEDs from OSRAM Opto Semiconductors, which backlight the glass facade.
The KÖWE shopping centre in Regensburg was recently modernised after 15 years of existence. In the course of these renovations, the entrance front was given a glass facade with an advertising banner integrated in the upper third. The top and bottom sides of the banner were provided with 816 RGB modules equipped with a total of 2,448 high-power LEDs from OSRAM in the colours red, green and blue. Their light is directed to shine up and down, parallel to the wall. A special secondary lens on the thin film LEDs and an intelligent colour control system ensure a homogeneous and dynamic colour progression. This allows individual patterns with over 16 million colours to be displayed on the entrance front of the KÖWE – from unicoloured areas to colourful stripes and even elegant progressions.
“The long life of the LEDs and the resulting low maintenance costs were crucial factors in the decision to use light-emitting diodes in this project, “explains Marco Friedrich, Manager of LI-EX, the company responsible for the lighting design and technical implementation of the facade. The coloured LEDs used have a life of up to 100,000 hours. As a further advantage, these point light sources are the brightest single-chip LEDs from OSRAM. Furthermore, they are small and use little energy. In colour-change mode, the 2,448 LEDs at the KÖWE facade consume a mere 1,800W. “In addition, we were able to use these LEDs to produce a dynamic colour progression across the entire facade, “adds Mr. Friedrich, a certified partner in OSRAM's LED Light for you network – a platform at www.ledlightforyou.com providing competent information on the subject of LEDs.
http://www.osram-os.com