Exemplary luminaires enlighten higher education
Siteco’s secondary lighting system Mirrortec was specified by Devereux Architects for a free-standing office extension in a former loading yard at the London School of Hygiene and Tropical Medicine, part of the University of London.
They were anxious to minimise gloom in the internal environment and maximise natural light as well as to lift the light levels of the Grade II listed buildings on three sides of the courtyard to create a brighter ambience all round.
The Mirrortec system recommended by lighting engineers Hoare Lea serves both purposes by using light projectors fixed, for easy maintenance, to the edge of the top cast floor of offices that are open to the glass-roofed atrium.
These project onto mirrored reflectors hung from the roof structure that reflect the light naturally around the atrium space as far down as the original courtyard floor, giving glare-free illumination.
The use of three 168mm-diameter SiCompact projectors for each 1200mmx1200mm Mirrortec 100 reflector and two switching circuits enables the system to be “dimmed‿ by using three, six or nine projectors depending on the level of natural light available. For instance, nine projectors would be used at night, perhaps three at midday.