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Lighting
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DOE Releases CALiPER Report on LED Flood Lights
SSLDesign News Staff
June 14, 2012...The U.S. Department of Energy released the results of CALiPER testing on 10 different LED flood lights. The latest report analyzes the independently tested performance of the LED floodlights purchased between August and December 2011. According to the DOE, the group includes a wide range of products both physically and in performance.
The report notes that currently, high lumen output and narrow spot distributions are currently challenging for LED products. The DOE says that in order for LED floodlights to compete with conventional products, the lumen output and luminous intensity distributions must expand to cover the full range that conventional products cover.
For this CALiPER report, the DOE defines a floodlight as a luminaire typically used to light exterior surfaces. According to the DOE definition, the aiming angle of a floodlight is usually adjustable utilizing a locking hinge known as a knuckle or swivel point. Floodlights range from very narrow to very wide distributions to suit the object being illuminated.
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Corpus Christi Harbor Bridge Gets LED Lighting System From Philips Color Kinetics
SSLDesign News Staff
June 14, 2012...For more than ten years, the Corpus Christi Harbor Bridge has been dark. Corpus Christi, Texas Mayor, Joe Adame worked with Philips to illuminate the 60-year-old bridge and make it a signature attraction for the city. The city chose an LED lighting system from Philips Color Kinetics, that can be easily programmed to create different light shows. The system is ideal for the community to help boost tourism, one of the city’s main sources of income.
The Texas Department of Transportation funded the project of supplying LED lighting for the steel truss spanning 620 feet and sitting 138 feet above the ship channel. The bridge, which was originally built in the 1950s, serves as a gateway to the city. However, much of the bridge’s prior lighting system had been corroded by the severe environmental factors of the Gulf Coast, including extreme heat, harsh winds, and salt water.
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CSL® (Creative Systems Lighting) Provides LED Downlighting for Resort Community
SSLDesign News Staff
June 14, 2012...CSL® (Creative Systems Lighting) based in City of Industry, California USA, provided a range of LED Eco-Downlights for Indigo Park, a resort community of 16 single-family residential dwellings built on 12 acres of land on Kiawah Island South Carolina. Located 21 miles from Charleston, S.C. Indigo Park is anticipated to be the first community within an exclusive resort to potentially merit LEED Platinum certification from the U.S. Green Building Council. Indigo Park was also recently chosen as the site for construction of HGTV’s Dream Home 2013.
“We are proud that the CSL brand is associated with a sustainable project of this caliber,” said Mark D’Antonio, vice president of Sales and Marketing for CSL. “Platinum level resort projects are still relatively rare, but we know they are part of our future. They give manufacturers like CSL a reason to keep innovating with our products and stretching our design capabilities to provide the most environmentally efficient illumination, style, functionality and dependability available on the market today. The inspiration and philosophy behind Indigo Park aligns well with CSL’s mission.”
Indigo Park is the vision of Candace Dyal, president of Dyal Compass LLC, who aligned with Christopher Rose Architects and Royal Indigo Construction to develop the project over an approximately three-year period. The Indigo Park homes range from 2,000 to 3,000 square feet, with a guest cottage option. Each home site features marsh views of the Kiawah River and its tributaries.
Royal Indigo Construction specified the energy-efficient lighting. CSL supplied a range of 3-inch Eco-Downlight LEDs including IC/Airtight/Adjustable and those made for New Construction (Non-IC).
These LED-based 3-inch Eco Downlights were installed in the living, kitchen, loft, bedrooms, and bathrooms of the homes. CSL’s 2-inch Eco-Downlight “LED Minis” were also installed in a small hallway on the second floor. The 3-inch Eco-Downlights have an integral proprietary 120V input LED Driver that CSL claims is 90% efficient. The down lights utilize 16W LEDs for an estimated operational life of 50,000 hours at 70% lumen maintenance. The LED Minis feature 14W LEDs and a 120V-277V input LED Driver.
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Philips Introduces Solar LED Road and Area Light
SSLDesign News Staff
June 14, 2012...Royal Philips Electronics has introduced a new solar powered road lighting solution. The company claims that it is the most cost effective solution per km of road on the market. The first 500 meters of the solar powered street lights have been installed in Marrakech, Morocco at the walking circuit at the Palmeraie.
The company claims that this innovation has the potential to transform urban and rural life in areas of the world which do not have access to the electricity grid or where the grid is unreliable, making them safer and more productive.
Royal Philips Electronics contends that the new solar LED street lighting will also help municipal authorities create more livable urban environments by applying new, future-proof LED lighting solutions to enhance city and rural life.
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DOE Awards $7.1 in Round 3 of Funding for SSL Manufacturing R&D
SSLDesign News Staff
June 12, 2012...The U.S. Department of Energy (DOE) has announced three solid state lighting projects to receive a total of $7.1 million in funding in response to the SSL Manufacturing R&D funding opportunity announcement (FOA) DE-FOA-0000561. The two-year projects will focus on achieving significant cost reductions while maintaining quality by improving manufacturing equipment, processes, or monitoring techniques. The three companies themselves will add an additional $5 million in private-sector funding. The DOE did not disclose how much each company received of the total $7.1 million. The DOE hopes that the projects will ultimately create jobs and boost exports.
Durham, North Carolina-based Cree Inc., received funding for its proposed project titled, "Low-Cost LED Luminaire for General Illumination". Cree plans to develop an optimized LED fixture design for efficient manufacture that uses fewer raw materials. The goal of the project is to efficiently provide warm-white light over a minimum lifetime of 50,000 hours, while reducing the cost of manufacturing the major components and assembled products. The proposed LED fixture design could be readily integrated into buildings and outdoor applications without compromising the performance of the light source. The project reportedly builds upon Cree's existing LED platform and has the potential to quickly reduce the cost of producing an already highly efficient LED fixture and allowing it to compete with existing fluorescent systems.
KLA-Tencor of Milpitas, California received the second award for its p;reposed probect titled, "High Throughput, High Precision Hot Testing Tool for HBLED Wafer Level Testing"
Through the project, KLA-Tencor seeks to improve the color consistency of LEDs by utilizing a measurement tool during manufacturing that reduces the variation in LED quality, improving performance and reduces cost. According to KLA-Tencor, the current practice is to separate LEDs according to color during the manufacturing process to maximize product yield. Unfortunately, this creates variation in light output and color quality of the product, which leads to reduced performance and increased costs.
k-Space Associates of Dexter, Michigan received funding for its project titled, "Optical Metrology for Volume OLED Manufacturing". k-Space Associates plans to build on its existing optical monitoring technology to enable high-precision measurements of OLED layers during mass production. According to k-Space, most monitoring of the OLED layers during the manufacturing process currently takes place after the OLED material is produced. For this reason if problems are detected, there's little or no chance to change the production inputs. The tool will reportedly measure layer thickness and composition to ultimately control the efficiency, color, and lifetime of OLEDs. k-Space Associates expects that the tool will serve as a platform for future large‐scale OLED production facilities.
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Commentary & Perspectives...
The Dawn of Solar Power, Courtesy of LEDs
Tom Griffiths - Publisher
June 19, 2012...We tend to talk a lot about the "yet to be envisioned" applications that LED lighting will enable. In a fashion similar to how the internet, optical communications (lots of bandwidth), plus the normal "evolutionary" innovations in cell phones brought us to the mobile connectivity revolution, LEDs will bring several cool revolutions that smart people have thought of, and the rest of us probably don't see yet. But what about non-lighting "revolutions" that LED lighting will enable? I can imagine several areas of interest that we'll all want to keep an eye on, including industrial applications and light-based health, but one of the big ones will be something called "solar power".
Alright, we can grant that the solar industry already exists, and it keeps getting bigger and better, but time and again we hear about the importance of those future "economies of scale" that will make it truly affordable, and presumable prevalent. Despite the failings of a Solyndra, or the collapse of the Spanish PV market, we do know those economies work. One of the more recent examples being the flat panel display industry. It gradually moved from a novelty to an expensive option, to suddenly fully competitive with incumbent technologies, and full of advantages pretty much making it the only sensible kind of display or TV to buy. It took a long time for "suddenly" to come about, but when it did, it really was an impressive wave.
Similarly, solar power, photo-voltaics, PV, off-the-grid technologies have been around for a long time, with somewhat recent promises for massive price decreases that would make it a very cost-effective choice. But there is always that tricky tipping point that has to show up, and it doesn't always show up where we might expect it to. While government subsidies have done some to spur the large scale installations (solar farms) in a few countries, what we're really looking for is to see solar panels on top of commercial and residential properties across the globe. A big reason that may not have happened yet, is simply that most buildings use too much power to make it worthwhile. Even if we look at nice, temperate places like California, where the term "season" is pretty much limited to whether your trip to the mountains will include skiing or mountain biking, a typical commercial property uses a lot of juice, with a lot of the lot being lighting. In less temperate places, and in typical residences, heating and/or air-conditioning become the primary factor, although heating is often less about electric thanks to our friends the fossil fuel family. At our house, the computers and fish tanks are also notable contributors, but there hasn't been much incentive to do much about them, since the lights and AC make up the vast majority of the draw.
So what happens when the energy requirements for the lighting system fall by 80% or so, as can often be achieved with the combination of higher efficiency sources, and more intelligent management? If HVAC isn't the big deal, "suddenly" with a little more energy management in some of the auxiliary systems, the concept of moving off the grid starts to make sense. I've heard some HVAC breakthroughs are in the offing, and it's not unreasonable to expect those could be additionally spurred by the "opportunity" of and off-grid solution really being viable. Simple saving energy may not have been enough commercial incentive, but "enabling" a more dramatic revolution seems to have both an economic and "demand-momentum" effect that really make new things happen. A flat TV is fine, but a TV in every room, because the flatness lets it fit on the wall... now we have some incentive.
So it's coming. As lighting gets smarter (perhaps better is, "more cognitive" so that it can be making decisions based on awareness of the surrounding environment) it will move from just a more efficient source to a vastly more efficient "lighting system". Lighting-driven environments that are not heavily burdened by HVAC requirements, especially new installations, will "suddenly" see the opportunity to approach things from the off-grid perspective, and watch what happens from there. Streetlights where streetlights have not been before (in rapidly growing sunny environs from Africa to Asia, for instance), will be an obvious first adopter of non-utility scale solar power. From there, look both to those sunny, but not hot, climates where summers don't need AC and winters only need electricity for the circulation fan... lots of lighting needed on the long winter day-nights, and now it is hyper efficient thanks to LEDs... residential may even move more quickly than commercial in those zones. And then "suddenly" we'll be springing off the grid in droves as "suddenly" it became cheap enough to matter. Thanks in part to LED lighting.
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