Archive for the ‘Diving torch’ Category

Cooking, fashion make this fest special

Úterý, Září 18th, 2012

The premises of L’ecole Chempaka were bustling with activity on Sunday morning. Young musicians were crooning and strumming away on the stage of the school’s assembly ground while budding artists sat engrossed in their work in shaded spots of the basketball court. Chempaka was hosting their annual interschool competitions, with participants from seven schools in the city competing in about eight competitions.

“But what sets our event apart is the cooking and fashion show competitions,” said Varsha Renjit of Class XI, one of the coordinators of the event. “The students of our school have brought utensils from their homes for the competition. One boy even brought an oven and the first person to qualify for the second round earns the privilege of baking during it.”

While pots and pans waited for participants to cook their way to victory in ‘Les Gourmets’, newspapers were the weapons of choice for those battling it out for ‘Project Runway’ – the fashion show. Students had to design outfits, the theme being ‘Tribals’, and ready their models to walk the ramp in the given time.

A crane made of used plastic bottles and a large metal drum converted into a face were among the sculptures that were placed for ‘Gallery Award’ – where participating schools had to set up ‘art galleries’ using sculptures, paintings and pencil sketches already made by their students.

“This is different from Brush it Up - the painting competition, where the topic is given on the spot,” clarified Reshmy Rajana Johns of Class IX, one of the volunteers.

Among other off-stage events was ‘Future Project’, where students had to design a new port for Vizhinjam harbour. Young architects used all the thermocol, chart paper and other scraps at their disposal to design the roads, buildings, solar panels, wind mills and LED lights to give form to their vision of the future harbour.

“This is in keeping with the spirit of ‘Emerging Kerala’,” said Samyuktha Thankachy, a class IX student, who emceed the competition.

The day-long event was inaugurated by Mumbai-based Malayali artist Bose Krishnamachari who spoke on the many faces of art. The classic rock band Ground Zero performed in the evening.

Speaking to presspersons, he said the State government has released Rs five crore each to eight Naxal-infested taluks in the State. As many as 16 development work has already been sanctioned. The officials from the police, revenue, ITDP and social welfare departments will hold a joint survey for 10 development work in 11 villages. A meeting was convened under the chairmanship of Deputy Commissioner Dr N S Channappa Gowda in this regard on Monday.

The joint survey is being carried out to ensure that there was no misuse of funds meant for the development of Naxal- infested areas. The work on roads and drains have been taken up in Naravi, Kuthloor, Kukkaje, Shirlali, Aladangadi, Mithabagilu, Malavanthige, Nada, Indabettu. The work on health centre at Yelaneer has begun. Five more roads will be developed in Yelaneer, he added. As many as 13 persons from Naxal-infested areas have been selected as teachers.

The DC has released Rs 41 lakh to take up development work under Calamity Relief Fund. The ITDP will distribute solar lamps, provide financial assistance to repair houses and take up self-employment training programmes in 11 villages at an estimated cost of Rs 95 lakh.

Finding a true tax basis for solar photovoltaic power systems

Úterý, Srpen 28th, 2012

Governments don’t care if solar power actually saves anyone any money or energy, they primarily want to know how much to increase your taxes. Consistent appraisals of homes and businesses outfitted with photovoltaic (PV) installations are missing but a new tool developed by Sandia National Laboratories and Solar Power Electric and licensed by Sandia addresses that issue. PV ValueTM is an electronic form designed to standardize appraisals - basically an Excel spreadsheet, because this is what the US Government and the Department of Energy’s Office of Energy Efficiency and Renewable Energy are doing with taxpayer money, instead of research on actual good alternative energy.

“Previous methods for appraising PV installations on new or existing construction have been challenging because they were not using standard appraisal practices,” said Geoff Klise, the Sandia researcher who co-developed the tool. “Typically, appraisers develop the value of a property improvement based on comparable properties with similar improvements as well as prevailing market conditions. If there aren’t PV systems nearby, there is no way to make an improvement comparison.

This will help understand more how awesome solar power is, because when a PV system is undervalued or not valued at all, it essentially ignores the value of the electricity being produced and the potential savings over the lifetime of the system. In other words, they think power companies don’t know how much electricity you use. By developing a standard methodology for appraisers when comparables are not available, they believe homeowners will have more incentive to install PV systems, even if they consider moving a few years after system installation.”

The tool uses an Excel spreadsheet, tied to real-time lending information and market fluctuations, to determine the worth of a PV system. An appraiser enters such variables as the ZIP code where the system is located, the system size in watts, the derate factor – which takes into account shading and other factors that affect a system’s output – tracking, tilt and azimuth, along with a few other factors, and the spreadsheet returns the value of the system as a function of a predetermined risk spread. The solar resource calculation in the spreadsheet is based on the PVWattsTM simulator developed by the National Renewable Energy Laboratory, which allows the spreadsheet to value a PV system anywhere in the U.S.

“With PV Value, appraisers can quickly calculate the present value of energy that a PV system can be estimated to produce during its remaining useful lifetime, similar to the appraisal industry’s income approach,” said Johnson. “Additionally, a property owner thinking about installing PV can now estimate the remaining present value of energy for their future PV system and what it could be worth to a purchaser of their property at any point in time in the event a sale of the property takes place before the estimated payback date is reached.”

The tool is being embraced by the Appraisal Institute, which is the nation’s largest professional association of real estate appraisers. “From my perspective as an appraiser, I see that this is a great tool to assist the appraiser in valuations, and it connects to the Appraisal Institute’s recent Residential Green and Energy Efficient Addendum. It’s an easy, user-friendly spreadsheet that will not bog the appraiser down with a lot of extra time in calculations, and if they fill out the addenda properly, they’ll be able to make the inputs and come up with some numbers fairly quickly,” said Sandy Adomatis, SRA, a real estate appraiser and member of the Appraisal Institute.

Although the tool is licensed for solar PV installations, it could be used for other large green features in a home that generate income, such as wind turbines.

Parking lot gets car charger, solar array

Úterý, Srpen 21st, 2012

Those passing through the Bedford Street parking lot in recent days may have been seen the solar array mounted on a support gantry there, part of a soon-to-be launched electric charging terminal for hybrid vehicles.

The 3 kilowatt power system, with spaces to charge two vehicles, is being installed using a $83,126 block grant from the federal Department of Energy, Erin McKenna, a city associate planner who oversaw the project.

Solar energy garnered from the panels would flow into the grid of the adjacent garage, McKenna said.

McKenna said the charging station is a step towards meeting expected demand from owners of electric vehicles, though initial use of other city managed charging stations put in operation in May has been infrequent.

The system will also include an display featuring a gauge showing resulting cuts in carbon dioxide emissions and the gallons of gasoline saved, according to Elliot Isban, chief executive officer of the project’s contractor, American Solar & Alternative Power.

“We wanted to put it in as prominent a place downtown as we could that wasn’t expected to have a big development soon that might put it in the shade,” McKenna said of the solar array. “The display will show how much energy the solar panels provide compared to the amount of energy used.”

While being charged, cars would be sheltered under the solar panels, Isban said.

Isban said he thought a commitment by Stamford and other cities and private businesses to seek opportunities to install electric charging stations was necessary to enable the public to use alternative fuel vehicles.

“People want to buy electric cars but there are very few electric charging stations so it is sort of a chicken or the egg type situation,” Isban said. “This will provide energy for 25 years with no moving parts, no noise, and no pollution. I think that’s elegant.”

In May the city completed installation of three free electric charging stations — one each at the Government Center and the Summer and Bell Street garages — as part of a Connecticut Light & Power’s two-year research study on how drivers charge electric vehicles.

A Danish insurance company last week flicked the switch on what it claims is the largest rooftop solar system in Northern Europe.

More than 3,000 solar panels have been installed at Topdanmark’s headquarters in Ballerup, Copenhagen, and they are expected to produce around 752,000kWh of electricity each year, enough to power about 200 households and reduce the corporation’s annual carbon emissions by 600 tonnes.

A statement on Topdanmark’s website said each panel produces as much energy in one year as was used in its production, meaning that with the panels expected to last about 40 years they should deliver a significant net reduction in carbon emissions.

The insurer decided to proceed with the investment after assessing a smaller installation at one of its commercial tenancies and undertaking what it described as “profound analysis of advantages and disadvantages investing in such a large solar cell system”.

The review concluded that declining production prices for solar panels, which dropped from $1.50 per watt in September 2010 to $0.60 by the end of 2011, ensured the business case for the project was viable.

Commercial solar project goes up at Thurmont firm

Úterý, Srpen 14th, 2012

Thurmont has its first commercial solar energy project with the installation of a system at Federal Stone Industries.

David Rethemeyer, vice president of the business at 142 Water St., said he believes the $136,000 investment will pay off in the long run.

Brent Cotton, who is coordinating the installation for Solar Energy World in Elkridge, said he met Rethemeyer at a home show in Baltimore.

“Dave’s booth was next to me, and we met by chance,” Cotton said.

There will be 150 panels installed at the business, which manufactures precast swimming-pool coping. Coping is the cap on the edge of a swimming pool or spa, which is mounted on the bond beam.

Thurmont has only one residential solar installation, according to town officials. Cotton said Thurmont, which has its own electric utility operations, had not implemented net metering (surplus power return).

The Maryland Public Service Commission helped the town set it up, Cotton said.

Rethemeyer said he was impressed to see the Constellation Energy solar array at Mount St. Mary’s University. That system, on about 100 acres, will supply power to the university and some of the surrounding community.

“It seems like Thurmont was caught in the ’50s when looking at Emmitsburg,” Rethemeyer said.

Federal Stone Industries, which has served the swimming pool industry for nearly 50 years, is an innovative business. It developed the Radiuschart, a tool for determining the radii of a pool wall, and keeps abreast of the latest technology in the field. The company also emphasizes safety for those enjoying their pool.

“It will reduce our expenditures, and I’m looking at the long-term investment,” Rethemeyer said.

Geoff Mirkin, a founder of Solar Energy World, said the project was the first commercial one for the company in Frederick County.

“The cost of solar has gone down, perhaps 50 percent in the past few years. Plus there are some grants and tax credits,” Mirkin said via telephone.

“We anticipate the payback in five to seven years,” Mirkin said. “It is better than putting the money in underperforming funds.”

Rethemeyer said he wasn’t complaining about Thurmont’s electric rates.

“They are not gauging us. They have been reasonable, but if we can produce power and put it back to the grid, that is a good thing.

“It is no ’silver bullet’ to solve all the energy problems, but it means less use of fossil fuels,” Rethemeyer said.

On its website, Solar Energy World notes that its commercial installation process includes a complete analysis to see if the project is the best way to go for a potential client; how to do the installation without interrupting business operations for the client; submitting all paperwork for applications, local building permits and any tax credits or other incentives; manage inspections and monitor electrical output and performance.

Cindy McKane-Wagester, Main Street Manager for Thurmont, said members of the Main Street group are interested in alternative energy.

Part of the Main Street mission is to look at clean, safe and green energy, McKane-Wagester said.

“We are looking for opportunities for solar energy for commercial buildings,” McKane-Wagester said. “We are researching it. Yes, it is in our future.”

Part of the discussion also includes increased recycling programs and chargers for electric cars, McKane-Wagester said.

“That would be an important part of the expected increase in tourism for Thurmont,” McKane-Wagester said of the chargers. No specific plans have been made for the chargers.

Pakistani village yearns for India visit

Úterý, Srpen 7th, 2012

Dust and dung coat the floor of the never-opened public-health center. Birds nest in the breezeway of the never-used boys’ high school. And staff never came to run the new women’s vocational center.

The government-designated “model village” of Gah, in the parched croplands of Punjab province, was supposed to serve as a thriving symbol of unity between Pakistan and India. Today it feels more like a ghost town, an embodiment of fitful, frequently stalled efforts by the two nations to settle their historical disputes.

Gah, a farming community of 300 squat, mud-brick homes about 60 miles southwest of Islamabad, is remarkable only as the birthplace of Manmohan Singh, the prime minister of India. Last month, Pakistani President Asif Ali Zardari invited Singh to visit Gah, in the latest round of so-called “soft diplomacy” between the nuclear-armed countries.

The offer comes as their relationship is improving slightly, at least on trade matters. India’s decision last week to allow investments from Pakistani citizens and companies was taken as another sign of progress, but there has been no lowering of the guard militarily by either side.

This is Pakistan’s second such goodwill invitation to Singh. He had planned to come several years ago at the request of then-military ruler Pervez Musharraf, who embraced a peace process with India in 2004, when Singh assumed office.

Under Musharraf, money flowed into Gah from the Punjab provincial government that was dominated by Musharraf’s party, funding roads, water projects and social service facilities. Pakistan permitted a team of Indian technicians from an energy institute to come to Gah to install solar-powered street lamps, lighting for homes and a hot-water system for the village mosque.

Then Singh’s visit was scrubbed, amid the political turmoil in 2007 that led to Musharraf’s ouster in 2008. The attacks on Mumbai that November — which India blamed on Pakistan-sanctioned militants — severely strained a bilateral relationship already burdened by old enmities and suspicions.

Diplomats suspended regular talks on territorial disputes, including the central one of Kashmir, the Muslim-majority Himalayan region over which India and Pakistan have gone to war three times since both nations became independent from Britain 65 years ago.

“We resent that there was no follow-through,” said Ghulam Murtaza, a 38-year-old primary schoolteacher, standing outside the shuttered health clinic. “As a result, you see nothing here, and it hurts the poor people.”

His family donated land for the site of the boys’ high school, he said, when the Punjab government asked the community for help. “We kept our promises, and they have not. It’s all been a waste.”

To Abdul Khaliq, 51, a village leader who has long pushed for economic development, a visit by Singh would highlight a yearning among ordinary Pakistanis: “We very much want peace,” he said. “We believe that both countries need to sit together to resolve the issues, to spend more on the development side, not the defense side.”

Gah’s turn in the limelight started as soon as Singh became prime minister. His Pakistani counterpart, Chaudhry Shujaat Hussain, bestowed model village status on Gah and directed that its primary school be renamed after Singh, who had been a student there for several years. Former classmates wrote him congratulatory letters.

Today the locals treat with totemic reverence the original class register, which shows that Singh, the son of a merchant, entered first grade as pupil number 187 on April 17, 1937, and stayed through the fourth grade.

LED street lighting delivers up to 85 percent energy savings in global trial

Středa, Červenec 4th, 2012

Results from a global trial of light-emitting diode (LED) street lights confirm that the fixtures can deliver electricity savings of up to 85% over existing technologies. The two-and-a-half-year pilot, called LightSavers, tested 533 LED lamps in 15 trials in 12 cities, including New York, London, Hong Kong, Toronto, and Sydney.

Findings from the trials are presented in a report co-released by The Climate Group, electronics giant Philips, and HSBC earlier this month on the sidelines of the Rio+20 summit. The Climate Group launched LightSavers in 2009, supported by the HSBC Climate Partnership, with the goal to accelerate the market adoption of outdoor LED lighting and smart-lighting controls.

Key findings from the report, Lighting the Clean Revolution: The Rise of LED Street Lighting and What it Means for Cities, include:

LED’s achieve the expected 50 to 70% energy savings, and reach up to 80% savings when coupled with smart controls. Energy savings in the trials vary from 18% to 85%, with 20 out of 27 products achieving savings of 50% or more, and ten showing savings of 70% or more.

Surveys in Kolkata, London, Sydney, and Toronto indicated that between 68% to 90% of respondents endorsed LED’s city-wide roll out. Benefits highlighted included improved safety and visibility.

LED lighting lifespan ranges from 50,000 to 100,000 hours indicating a high return on investment.

The ‘catastrophic’ failure rate of LED products over 6,000 hours is around 1%, compared, for example, up to 10% for ceramic metal halide fixtures over a similar time period.

The Climate Group and Philips are calling for an international low carbon lighting standard to be created and implemented ensuring that citizens worldwide have access to energy efficient outdoor lighting.

“I believe that improving financing approaches will significantly advance the adoption of LED lighting technologies in the coming months. The results clearly show the financial and energy savings of implementing LED’s. Now, cities will have to figure out how to work the funding into their upcoming budgets.”

In California, to cite another example, support for LED street lights project financing has come from the California Energy Commission (CEC) and the U.S. Department of Energy. In January, Justin Gerdes reported at Forbes that 10 California cities, several of them quite small, had used funding provided by the American Recovery and Reinvestment Act (ARRA) to undertake LED street lighting retrofit projects. Since I published that post, the CEC has announced that about a dozen more California cities have launched LED street lighting retrofit projects courtesy of the same ARRA-funded Energy Efficiency Conservation Block Grant program.

So confident are the report partners in the potential of LED lighting they want LED’s to become the global lighting standard. “All new public lighting – both street lighting and in public buildings – should be LED by 2015, with the aim of all public lighting being LED by 2020,” said the Climate Group’s Kenber in a statement.

I believe that LED outdoor luminaires have reached maturity in terms of their performance. City lighting managers from across the world have independently verified that LED’s can live up to their promise of exceptional perfor-mance, energy efficiency, and public approval, with indicators pointing towards stabilization in light output in many products after an initial period of volatility.

Future’s So Bright in Optical Sector

Úterý, Červen 19th, 2012

After the aggressive purchase of three Chinese optical companies for an estimated 600 million yuan ($95.24 million) since it came to China at the end of 2005, US-based LensCrafters is launching a new concept store under the name of “LC+”.

The outlet will be the flagship store of the giant high-end retail chain owned by Luxottica Group S.p.A., the world’s largest eyewear company, whose most famous brands include Ray-Ban, Persol and Oakley Inc. It also makes sunglasses and prescription frames for designer brands such as Chanel and Prada. Luxottica also produces sunglasses branded Burberry, Polo Ralph Lauren, Stella McCartney, Tiffany, Versace, Vogue, Miu Miu, Tory Burch and Donna Karan.

The company’s retail branch has 7,000 stores in the United States, Canada, China, Australia, New Zealand, South Africa, Israel and the United Kingdom and it makes more than 400 million pairs of eyeglasses a year.

LensCrafters is leading a trend among eyewear companies hoping to cash in on the huge number of shortsighted people in China who are now demanding high-end spectacles, sunglasses and contact lenses.

“We have been mainly focused on changing the brands, changing the stores and changing the service to be more premium during the last couple of years,” said Frederic Seiller, Great China chief executive officer of Luxottica Retail, prior to the grand opening of the store in Shanghai in May.

With a prime location on Huaihai Road, one of the busiest shopping streets in Shanghai, and occupying a two-floor space featuring mirrors and bright fluorescent lights, the new store is designed to create an “approachable but premium” atmosphere that sits “between fast fashion stores and luxury brands”, according to Seiller.

Sunglasses, prescription as well as regular, will make a significant contribution to sales at the new store, if not all the company’s stores, said Seiller.

“When you walk in big cities here, of course on sunny days the proportion of people wearing sunglasses may be just one out of every 10 people, while in Milan or Paris it’s 60 to 70 percent or even higher. But you are seeing the younger generation starting to wear sunglasses so that’s where the potential is,” he said.

“Another indicator is that you see most of the fast fashion stores, or even small boutiques on the streets, here are selling sunglasses as accessories. But three or four years ago, they didn’t have them, which is also good for companies like us because they are helping ‘educate’ consumers about the necessity of sunglasses, be it as fashion accessories or eye protection,” he added.

Having seen a year-on-year increase in China of nearly 50 percent in the sun-protection eyewear sector, Seiller believes the potential of his 1,000 yuan-apiece sunglasses will continue to experience high growth because of the high number of shortsighted people and a growing interest in high fashion.

A report from the Hong Kong Trade Development Council found that 75 percent of Chinese people aged between 15 and 59 are in need of vision correction. Most of them have myopia.

“Whether you are wearing contacts or not, you will need sunglasses for eye protection,” said Seiller. He believes the potential for sales of sunglasses, which now account for 30 percent of the company business, is as large is as it is for contact lenses, if not larger.

Other newcomers are seeing themselves as educators in the market because many Chinese people are not used to wearing sunglasses.

Aesthetically working helmets in ‘Prometheus’

Středa, Červen 6th, 2012

In returning to the genre he helped define, Ridley Scott continues to push the boundaries of storytelling, both visually and thematically. As he notes, he’s all about the “everything” – from story structure to casting, from sets and costumes to new ways of telling a story. And while the renowned filmmaker is scaring the hell out of you, he never loses sight of the big picture. “After you’ve seen Prometheus,” Scott concludes, “you will have experienced something completely unexpected.”

In parallel to the film’s post-viewing experience, the actors likewise have undergone a gratifying filming experience with the helmets developed for the film.

Scott mandated a globe-shaped helmet with no blind spots. Each helmet had nine working video screens, lighting, an oxygen supply run on two fans with battery packs within the backpack. The exterior of the helmet features a fully functioning torch and HD cameras with a transmitter and recorder.

The helmet has 9 working LED screens, all with specially designed graphics, five of them in the globe, and the others in the glass. The graphics have all been designed by the art department to look like official tech. It’s the seismic activity of the land.

Then there’s LED lighting everywhere. There’s a light in the top. There’s a skull cap, which is wired for sound so they can not only speak, they can hear direction. And most importantly, it’s completely wired up for air because Ridley said that on ALIEN, the panic that would set in after their actors had been in the helmets for more than 30 seconds was immense. Plus there’s all that condensation you get on the globe.

The backpack really functions as a huge battery loader for all the electronics. The editor, Pietro Scalia, decided he wanted to be able to see through the mounted cameras, so they’re real HD cameras, which come with big recorders and great big transmitters. But apparently the footage has been great – you can intercut, so that right in the middle of a scene you get little gems: little bits and bobs that a wide camera can’t.

Prometheus costume designer Janty Yates shares, “We’ll make about 60 of these helmets. We’ve got so many stunts. It’s a constant process of making and mending them. There are so many things that can and do go wrong with the electronics, but even with all the maintenance you have to do I think we must have saved them a fortune, because if it weren’t built into the suit they’d have had to create it in post and that would have been so much more difficult.”

“Even a little knock to the helmet could knock out the whole sequence. They’re so fragile, but they’re just beautiful things. The result of having all these lights in the suit itself is that you end up with the actors bathed in this exquisite lighting. My guys have to get together with Dariusz Wolski, the cinematographer, and figure out what was going to work and where. They strips of light look like inverted halos and they light the faces really exquisitely,” recalls Yates.

Ride with PROMETHEUS in the speed of light years when it opens June 6 in theaters all over the Philippines – from 20th Century Fox to be distributed by Warner Bros. Visit and like 20thCenturyFoxPh facebook page for more of Prometheus and upcoming films.

Audi Planning to Eliminate Rearview Mirrors in Le Mans Cars

Středa, Květen 30th, 2012

One feature that automakers have teased us with and even installed on concept cars is an LED screen and camera in the place of the old-style rearview mirror. With all of the cameras placed all around cars these days, like Subaru’s EyeSight system and the various backup cameras, we are surprised this hasn’t become a reality. The assumed reasons for rearview screens not taking the place of rearview mirrors are NHTSA and DOT regulations.

Honestly, we don’t see why the NHTSA and DOT would think a hunk of glass glued to the windshield is safer than a crisp LED image from an HD camera. Then again those two government offices – as with all government offices – make strange regulations. Apparently an LED screen and camera are plenty for Audi’s future Le Mans cars, as the automaker has just announced, via a press release, that its closed LMP prototype will run with an AMOLED screen in place of the mirror and a rear-mounted camera feeding the images to the screen.

The main reasoning behind this is that the LMP prototype’s cabin is fully closed, with exception of the front windshield, so a rearview mirror would display nothing but the rear wall of the cabin. So, if this technology is good enough for racecars, why are we not seeing it installed in street cars yet? Well, we just very well might, as you likely do not remember, but the rearview mirror was not used on motor cars until Ray Harroun’s Marmon “Wasp” used one in the first Indianapolis 500, in 1911. It later became standard per NHTSA regulations for all cars to come with this item, thanks to its overwhelming success in racing.

“This gives us a whole host of benefits,” stresses Dr. Wolfgang Ullrich. “The operation of the mirror is weather-neutral. By contrast, when using outside mirrors, heavy water spray severely impairs the driver’s field of vision when it rains. For the new digital mirror, we worked out various day and night driving modes. Even when a rival approaches from the rear with high-beam headlights the image is superb and not just a glaring light spot.”

This has only been made possible by the latest diode technology. Instead of conventional light-emitting diodes an active matrix OLED (AMOLED) display is used. Its name has been derived from organic semiconductors. Their major advantage: Like displays, AMOLED screens can show multi-colored images and offer better resolution thanks to particularly small pixels with diameters of merely around 0.1 millimeters. Outstanding image quality and short response time are further positive properties of AMOLEDs. “Therefore, even at 330 km/h we’re achieving a totally fluid image flow in real-time transmission,” says a pleased Dr. Ullrich.

At this speed, the Audi R18 covers a distance of 92 meters within a single second. As these new types of screens are freely programmable, Audi uses them to display other data as well. Information on the gear that is currently engaged, the slip level of the tires, and specific warning lights have been integrated into the central instrument.

“I’m pleased to see that we’ve managed to make another contribution to active safety through this technology,” emphasizes Dr. Wolfgang Ullrich. “We’ve previously achieved major effects not only with basic concepts but also through detailed innovations. The introduction of a tire pressure warning system in the 2001 season in the Audi R8 is just one case in point. Our drivers came to highly value the digital rear-view mirror right on its premiere at Spa.” At the second round of the FIA World Endurance Championship (WEC) Audi achieved a one-two-three-four victory.

New trends at Lightfair 2012: Fine motion control and incandescent-like dimming

Středa, Květen 23rd, 2012

At Lightfair 2012, Lighting Science Group (LSG) demonstrated how the company is integrating controls and LED products across its product lines. “We’re taking controls and intelligence packages and wrapping LED products around them,” said Jim Haworth, chairman and CEO of LSG. One example of this combination is the company’s recently launched Forefront LED luminaires, available in area, flood, high bay, pedestrian and wall-mount versions, which can be controlled using PixelView occupancy sensing and video processing.

In a demonstration at Lightfair, David Henderson, chief development officer of LSG, showed how PixelView camera-based motion sensing can be programmed to sense disturbances in a specific area. “In the past, we used passive infrared, but what you find in different applications and in very cold or very hot climates, you can get dead zones where performance drops off,” said Henderson. Instead, PixelView uses a CMOS camera, similar to that used in automotive applications, and the motion detection can be confined to any part of the camera’s field of view. For instance, if the user wishes to program the camera to ignore a heavily trafficked area and instead focus on an area around a car, PixelView can be programmed to do that.

Each Forefront LED product is designed as a one-for-one replacement of 100-750W HID fixtures, requiring 50% less energy usage. The flood luminaire features lumen output up to 23,000 lm, and can be used for facade, sign, landscaping or architectural lighting.

Also at Lightfair, LSG recently introduced its RoadMaster LED street light, which is designed to be a low-cost replacement for HPS fixtures. Approximately 4000 100-150W HPS fixtures are currently being replaced in Puerto Rico.

Lighting Science Group is also preparing to roll out a solar-powered street light that will be capable of 3-day autonomy. Named FreeLED, the luminaire will contain all power electronics in one unit and will use a next-generation lithium iron phosphate (LiFePO4) battery, which offers better thermal and chemical stability than other lithium-based batteries. According to Lighting Science Group, the LEDs used in this luminaire have an efficacy of 133 lm/W.

Both Osram Sylvania and Juno Lighting introduced LED lamps capable of incandescent-like dimming at Lightfair 2012 to serve the needs of residential and hospitality environments.

Sylvania has released its Ultra PAR38 with CCT dimming, which allows dimming from 3000K to 2000K by using a combination of blue phosphor-converted LEDs and amber LEDs, according to Ellen Sizemore, product marketing manager for Osram Sylvania. She stated that if this incandescent-like dimming proves popular, Sylvania will make the dimming available on all its product lines.

Juno Lighting’s Chris Walsh, vice president of product management, explained that the company’s WarmDim recessed downlight received Lightfair’s Technical Innovation Award for the most forward-thinking advancement in LED lighting. WarmDim uses an on-board microprocessor to dim from 3000K to 2000K and is available on 4, 5 and 6-in downlights. The 600-lm downlight uses 14W of power. The downlights are available in retrofit or new installation versions.