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DESIGN / CONSERVATION LIGHTING
Pic: Allan Toft
sections of the floor to reach the fittings. With such high lighting levels required and such a limited length of channel to mount the fittings, luminaires were mounted side by side and staggered up and down on a mounting rail to allow access to the rotating hinge for maintenance. To provide cooling to the lights and the lighting channel, the mechanical engineers developed a system to pass air through the channel. This had a very beneficial two-fold effect, as the air flow keeps the fittings at an acceptable temperature, and a clever design channels a constant thin stream of air cascading down the acrylic which pre- vents build-up of condensation due to the
extreme temperature differential from the public zone to the enclosure zone. With the functional lighting designed, speci- fied and modelled, NDYLIGHT introduced a short section of neon backlighting to the fractured acrylic rear wall of the enclosure land mass. This neon backlighting was de- signed in a two-colour arrangement in both red and blue to allow cross-fading of the neon at set stages during the day to provide a halo line to the horizon. This lighting provided the visual effect of transitioning from blue, through purple and then dim- ming down to a deep blue during the night and provides an ethereal low level ambient night light to the enclosure.
OK, so we may have stretched the truth with this one...
Following the earthquake of 2010 the Chilean National Museum of Natural His- tory - MNHN (Museo Nacional de Historia Natural) in Santiago underwent a two year reconstruction. As part of a new exhibi- tion, ‘The Tunnel of Bio-Geographical’, three dioramas depicting the ‘Auroras Australis’ (Southern Lights) were created. One of the dioramas, of penguins in the Antarctic, features colour changing scenes designed by Chilean lighting design prac- tice DIAV, depending on different times of day and conditions. Clear daylight has a very warm temperature (3000K or less) whilst cloudy days have a very cool temperature (6000K or more) with sunsets containing purple, pink and green shades. The effect was achieved using a mix of Philips Color Kinetics colour changing iColor and white iW Cove Powercore lumi- naires with Philips Spot LED III spotlights defining the individual penguins.
www.diav.cl
Above left The Penguin Bay installation consists of sixteen Exterior 410 LED fixtures mounted in the ceiling and seven Exterior 100 LED fixtures mounted underwater.
Above Melbourne Aquarium uses Siteco A2 Midi and Maxi fittings with metal halide lamp wattages ranging from 70W to 400W and dimmable halogen lamps ranging from 200W to 1000W.
Ultimately, the design of the lighting sys- tems to the penguin enclosure at Melbourne Aquarium has been very successful, with the curators referring to the lighting as a life support system. In addition, they have suc- cessfully bred birds in the enclosure - which represents a truly successful outcome for all involved.
www.ndy.com/services/ndylight
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