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August 30, 2012...At the 2012 Wacken Open Air (W:O:A) Festival in Germany, Robe moving lights helped create the dynamics for two stages in the Bullhead Circus tented arena.
Headliners such as: The Scorpions, Machine Head, Sepultura, and many others performed in one of the biggest, best known and most popular metal fests in the world. Over 80,000 rockers gathered over three days to enjoy a wide selection of metal genre artists.
Lighting for the double-staged Bullhead Arena was supplied by Crystal Sound based in Karlsruhe.
Thomas Bartz from Konzeptsache Berlin designed an impressive cityscape set. The two stages were positioned side-by-side with a mesh-clad Layer scaffolding structure in the middle, complete with a boxing ring coming out into the audience. Artists used this to tease the crowd and strut their stuff!
The stage performances were operated in ‘flip-flop’ style to ensure that there was a constant onslaught of music to delight even the most die-hard of metal-heads! Bartz positioned the fixtures to be a fundamental element of the brief. The Robe fixtures used included 40 x MMX Spots, 46 x ROBIN 600 Beams and 30 LEDWash 600s.
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August 30, 2012...Dialight of Farmingdale, New Jersey USA, announced it has secured an order for almost 2,000 LED lighting fixtures to be supplied for a new underground conveyor system for an Indonesian copper and gold mine. Dialight also announced the establishment of Dialight Asia Pte Limited.
The customer, an international mining company, chose Dialight’s LED fixtures for their longevity and reliability in harsh environments. Dialight claims that its fixtures are resistant to shock & vibration common in these applications, and ultimately improve safety for the mine workers with reliable and enhanced illumination.
The project consists of a combination of DuroSite® LED High Bays, SafeSite® Class I, Div 2 Area Lights and associated mounting bracket accessories. Dialight will begin to deliver product in September, with shipments continuing through the end of the year.
Dialight Asia Pte Limited, is a joint venture with Lumina Holdings Systems Limited (“Lumina”) based in Singapore. Dialight Asia will reportedly be responsible for the promotion and sale of Dialight industrial white lighting products in South East Asia.
The new company will get much of its supplies from Dialight’s new facility in Penang, Malaysia. The company plans to address key oil and gas markets in the region. A number of sales personnel will be transferred from Lumina, and Dialight Asia will recruit further sales people.
August 29, 2012...Cree, Inc. has introduced THE EDGE® High Output area and flood light LED luminaires. Cree says that the luminaires are capable of replacing high output sources of the past such as 1000 watt metal halide. They also use 50 percent less energy in most applications. The new luminaires feature more than 20 optical configurations. Among them is a new FrontlineOptic™ technology designed specifically for auto dealerships. THE EDGE H.O. luminaire delivers bright and focused light to applications seeking a high output solution.
“Buying a car is a visual experience and quality lighting has an immediate positive impact on the retail shopping experience,” said Mike Lallier, president and owner, Reed Lallier Chevrolet. “Cree designed THE EDGE High Output luminaire to meet the specific needs of auto dealerships. The revolutionary solution provides superior color quality that allows us to effectively extend our selling window after dark. The advanced optical control of THE EDGE H.O. luminaire delivers light precisely where it’s needed to always showcase our inventory in the best possible light.”
The company claims that THE EDGE HO luminaire offers an LED solution with a much broader and fuller color spectrum that more closely resembles the output from the sun and provides more realistic and distinctive color renderings that can enhance safety and contribute to a more consistent visual experience.
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August 28, 2012...Osram announced the results of a consumer survey about energy efficiency and lighting. Osram also announced that it will soon offer what it claims to be the first LED-based replacement for 40-watt incandescent lamps with an recommended retail price about ten euros (about US$ 12.56).
In accordance with EU regulations, after 1 September incandescent lamps may no longer be brought onto the market. A representative survey conducted by the opinion research institute forsa on behalf of Osram revealed that 60 percent of consumers in Germany are highly interested in saving energy and more than a third are already using energy-efficient LED lamps.
The representative forsa survey conducted on behalf of Osram was of 1000 Germans.
The survey revealed some profound knowledge deficits about the lighting regulations. Only a third of German citizens knew that the fourth stage of EU regulations on energy efficiency prohibits the further sale of conventional non-directional light bulbs. Just under 40 percent of survey respondents felt that they are roughly informed about possible alternatives, but would like more advice. Around 20 percent of survey respondents indicated that they know hardly anything at all about the topic.
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Commentary & Perspectives...
September 5, 2012...Up til now, the LED lighting industry has been fairly "source centric" in its messaging as it pushed forth the rising-efficiency story. In the last year or so, LEDs that top 100-120 warm white lumens-per-Watt (lm/W) have come down in price to join the mainstream "lumens per dollar" part of the industry value curve, which simply means that cost-effective LEDs, are now the most efficient man-made lighting emission source. (OLED folks may remain silent on this about their near-100% quantum efficiency thing until they can get more of the lumens out of those highly efficient layers). So now what are we going to be focusing on? Enter the lux wars.
While the lumens we all know and love are about the total amount of visible
light emitted from a source (any source), Lux is the luminous flux hitting or
passing through a specific space. Imagine our reference source being a luminaire
that we'll call a flashlight (aka "torch") emitting 100 total lumens
out of its lens in a typical cone pattern. If that precisely designed lens is
shining on 1 square-meter of a big flat target, it is delivering 100 lux of
illuminance. Move it further away along the cone shaped pattern such that the
beam is now illuminating a 2 square-meter area, and you'll have those same 100
lumens, but they'll be spread out across twice as big an area, giving us a measure
of 50 lux. For the most part, given the same mix of frequencies/quality of light,
lux are what we really care about in our lit environment.
There are definitely some moves going on to shift the discussion more towards lux, as we've also done for a number of years in referencing an advantage of LEDs to deliver light where it is needed, and not where it's not. Beta LED, now part of Cree, did an excellent job telling that story in reference to their parking lot lighting projects, with great aerial photos showing nice even lighting across a property that stopped at the edges. So if the best a metal-halide fixture can do is get 80% of the lumens emanating from the omnidirectional source out of a fixture, and another 20% are scattered beyond the edges of the target zone, the math says that 64% were put to use for the task at hand. If we assume LEDs in a similar application have 90% optical efficiency (getting through their individual lenses), and that the virtually all of them go where we want, it works out that 10,000 metal halide lumens can be matched by something like 7100 LED-derived lumens.
It often goes a step further when we look at the actual distribution of the light from a typical omnidirection. Parking lots are also an easy visualization of that case. We've all seen the "hotspots" in some sort of focal area, then a band of fairly consistent light level outside that zone for a ways, then a fairly rapid fade off as you get further out. No one needs that hotspot in that type of application (it's a no-charge feature!), so what if you can take some lumens from the hotspot, and evenly distribute them across the rest of the target? In practical application, that can save another 10-15% from what's actually needed to do the job well. 6000 LED lumens vs. 10,000 from the incumbents.
This also extends to simply applying the lumens more judiciously. An easy-to-imagine
scenario is a car-dealership, which we've all seen to be pretty much fully lit
up all through the night. While that's handy during business hours, the point
of the full-night lighting is merchandising. "Look at these shiny new cars
here in the front row" and "look at all these cars we have in stock".
You want the front row (street side) to "pop" and the rest of the
lot to be evenly and visibly lit. But does the whole lot need to be evenly lit
after hours? I tend to think not and the luminaire developers, presumably listening
to the customers, seem to agree. Light the front row very brightly, with a sharp
cutoff so that you see the cars and not the lights shining in your eye.
Further
back, light everything evenly and properly bright for business hours, then adjust
that down later at night so that it is still secure and "lots of cars"
but not glaring. The incumbents don't tend to dim all that conveniently and
would be substantially challenged to do that in a smooth and gradual fashion
when compared to LEDs. The net result could be an energy savings of 50% or greater
without sacrificing the overall effect or quality of light. Add to that the
elimination of the whole "relamping" thing, which in merchandising
applications is typically done all at once, on a schedule that should avoid
the point of noticeable lumen depreciation and other than sporadic failures,
and you're talking about ROI's for an LED retrofit that may be as little as
2 years.
What will be tricky with the lux wars will be the fact that it can be difficult to interpret by simply comparing specs. While lumens were relatively easy (but comparatively less meaningful), lux is subjective to the application. Lighting designers will "get it" of course, but if the decisions are left to the more facilities-oriented folks, a number of the important subtleties can be missed without more education. Show and tell matters a lot, and even just decent pictures of installations can illustrate key concepts such as the smoothness of the distribution across the lit area. Of course education is pretty much the task of the LED lighting industry in general, isn't it?
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