The Lighting Control Innovation Award was created in 2011 as part of the Illuminating Engineering Society’s Illumination Awards program, which recognizes professionalism, ingenuity and originality in lighting design. LCA is proud to sponsor the Lighting Control Innovation Award, which recognizes projects that exemplify the effective application of lighting controls in nonresidential spaces.
This month, we will explore the role that lighting controls play in enhancing the visitor experience at Städel Museum. Lighting and control design by Andreas Schulz, Tanja Baum, Alexander Rotsch and Thomas Möritz, lighting designers for Licht Kunst Licht AG. Photography by Norbert Miguletz. Lighting by Zumtobel.
The inner courtyard, or Städel Garden, is studded with 195 circular skylights. They range from 1.5 meters in diameter along the sides to 2.5 meters in the center. The exhibition space beneath adds 3,000 square meters to the museum.
The skylights are equipped with a complex system of horizontal, movable screens.
Downlights are recessed into the coffered ceiling; a peripheral track holds adjustable LED projectors for accent lighting.
Looking back towards the staircase, all lighting equipment is confined to two troughs with track-mounted fully adjustable LED spotlights for general as well as display accent lighting. All LED lighting fixtures have adjustable color temperatures.
The circular skylights are omnipresent in the underground Gartensaal. The domed ceiling appears weightless as it is supported only by slim stilts that are concealed by light partition walls.
The perimeter of the skylights carries tightly arranged LED boards that supplement the natural light. Both intensity and color temperature of the lighting elements are individually controllable within each skylight. The narrow gap between the diffuser and the concrete edge accommodates connecting points for LED spotlights and framing projectors.
Different conservational or curatorial requirements may apply to each of the zones of the hall, and precise target horizontal or vertical illuminance levels are achieved by measuring out the daylight ingress through a series of reduction layers, up to a full black-out, that automatically uncurls within the skylight. Artificial lighting is then added as required. A complex control
system coordinates the daylight reduction as well as the diffuse LED panels and possible spotlights whilst adapting to a flexible zoning of the hall.
A diaphanous fabric material stretches over the skylight apertures. It diffuses the incoming light but still allows one to get a sense of the blue sky and connect with the exterior.