TECHNOLOGY: SHOWCASE LED lighting
LED fixtures are becoming more pervasive in entertainment, commercial and residential settings, and there is now an LED alternative for almost any kind of traditional lighting fixture, writes James McGrath
{ MAC Aura makes LEDs more palatable
Martin – now the professional lighting arm of Harman after its acquisition at the back end of last year – believes that, although providing many technological advances for the lighting world, LED lighting has posed difficulties for lighting designers. Placing clusters of LEDs behind a lens has thus far produced an unsatisfactory output – a synthetic, pixellated, clustered, hexagonal look. The company’s main aim with the Martin MAC Aura was to develop an LED lighting fixture whose output didn’t have these deficiencies. Martin has combined
different technologies located within the same lens face, ultimately creating two illumination systems – both
{
colour-calibrated – in one compact 5.6kg luminaire. These are a set of individually controllable multicolour LEDs and a patented LED-based ‘aura’ RGBW backlight colour- mixing system, which independently illuminates the fixture’s front lens. The aura system fills in the background of the luminaire’s face with premixed colour for a more appealing single-lens, full-circle look. Each colour-mixing system is independently controllable, so the aura system can be used on its own as a mood generating fill light, or the systems can work together to form a powerful, single- lens wash. Users can even mix and match the systems to produce looks for the
camera and/or audience that can range from the radically colourful to the subtle. A built-in FX engine allows
effects to be created quickly. Using the two-channel control – one for aura, one for beam – operators can synchronise or offset effects (colour, strobe, dimming, zoom, pulse and burst) without programming. The MAC Aura is said to
produce authentic warm shades that closely match tungsten, and organic shades that are closer to candlelight than LED.
In addition, the MAC Aura also houses a 11º-58º zoom that is capable of angling super wide or extremely tight.
www.martin.com
ETC expands Source Four range with LED
} 52 September 2013 }
ETC has been developing eco-conscious profile spotlights for 20 years. The company’s Source Four range began with the Source Four HPL lamp, whose filament design allowed lighting designers to replace 1,000W fixtures with better- performing 575W and 750W HPL-powered Source Four models. Further development came with the Source Four HID (high- intensity discharge), before the company launched the most recent addition – the Source Four LED. According to ETC, the
Source Four LED is perfect for venues where energy efficiency is of high importance and/or where seamless and silent colour changing may be required. The range comprises the
Lustr+, Studio HD, Daylight and Tungsten. In common with the rest of the range, the Source Four LED Lustr+ offers a complete palette of colours thanks to ETC’s own LED luminaire technology – the Selador LED x7 Color System.
The Studio HD, meanwhile, is designed to perform in a high-definition production world where people (with varying skin tones) need to look their best. It combines, says the company, exceptional light output with an ultra-flexible, variable white light (2,700- 6,500K), for more accurate colour rendition on camera. Source Four LED Tungsten
and Daylight are said to produce maximum brightness at the respective warm (3,000K) and cool white (5,600K) colour temperatures. The Source Four LED CYC,
meanwhile, is an attachment which affixes to any Source Four LED luminaire, turning it into a powerful tool to asymmetrically illuminate cycloramas. Each Source Four LED is
energy efficient, achieving 30 to 40 lumens per watt (fixture dependent). Each fixture also has the added benefit of RDM, which offers bidirectional communication over DMX.
www.etcconnect.com
www.installation-international.com
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