Around 7,000 LEDs will homogeneously illuminate the Sistine Chapel from next year onwards, enabling the world-famous works of art to be shown to greatest effect. The colour spectrum was custom-adapted on a scientific basis and with high precision to the colour pigments of the paintings, for example to the pigments in the Michelangelo frescoes. The highly precise guiding of light ensures that the art is uniformly illuminated, and without glare for visitors. The luminaires are to be installed away from view below the windows to make sure that light is emitted in the same direction as the natural daylight. Until now, the art could only be seen insufficiently and according to the ingress of daylight, and limited by technological and conservational constraints.
The conservational aspect, meaning protection of the art works, played an especially important role during the planning of the project, and the new LED solution is significantly gentler and more caring than all alternative artificial forms of light. Illuminance of approximately 50 to 100 lux (previously 5 to 10 lux) ensures that the art can be clearly discerned, but with as little ageing as possible.
In addition to the quality of the lighting, the new solution is also significantly more economic than the previous system. Although the level of illuminance could be increased many times over, power consumption for the lighting in the Sistine Chapel is expected to be reduced by more than 60%. The reason for this is not only the implementation of energy-saving LEDs but also the highly exact light planning that illuminates the chapel with high precision and completely without light spill.
This pilot project, with the working title of LED4Art, is subsidised by the European Subsidy Program for Information and Communication Technology within the Framework Program on Competitiveness and Innovation (PSP-CIP). The aim of the subsidy program is to demonstrate new possibilities for LED technology with regard to energy efficiency and improved quality of light, and thus to achieve more rapid market penetration for the new technology. In addition to the project coordinator Osram, other partners involved are the University of Pannonia in Hungary, the Institut de Recerca en Energia de Catalunya in Spain and the planning offices of Faber Technica in Italy.
Osram of Munich, Germany is one of the two leading light manufacturers in the world. The company’s portfolio covers the entire value chain from components – including lamps, opto semiconductors like light-emitting diodes (LED) – to electronic control gear as well as complete luminaires, light management systems and lighting solutions. Osram has around 39,000 employees worldwide and generated revenue of 5.4 billion Euros in fiscal year 2012 (ended September 30, 2012). More than 70 percent of its revenue comes from energy-efficient products. The company’s business activities have been focusing on light – and hence on quality of life – for over 100 years. Additional information can be found in the internet at www.osram.com
via LED-professional http://www.led-professional.com/project_news/art-museum-lighting/osram-illuminates-the-sistine-chapel-with-a-new-led-solution