2011年3月29日 星期二

LEDS Cooled by Synjet Named Winners of Next Generation Luminaires Competition by U.S. Department of Energy

At this year’s Strategies in Light conference, an event showcasing the latestadvancements in LED lighting, the US Department of Energy (DOE) and a panel of 12 judges drawn from across the lighting design community named 15 LED downlight and accent light fixtures winners of the 2010 Next Generation Luminaires competition. The Nuventix SynJet cooled two of these award-winning fixtures, recognized for their warm color, even distribution of light and small form factor – a feat considering fewer than 10 percent of LED lights currently utilize active cooling for thermal management.

 
http://www.generallamp.com/LED-Wall-Washers_11.htm

“These wins with Philips and Edison Price are big for us. The SynJet was instrumental in differentiating the design of these two winners from the others,” said Tom Dalton, senior vice president of sales and marketing with Nuventix. “Interestingly, one of the judges for the Edison Price fixture wrote ‘the use of a fan for heat management did cause some concerns.’ Although this judge didn’t realize the LED used SynJet as its thermal management solution, it does show fans are seen as an unreliable option for LED cooling. Thermal management is key to making LED lighting viable and the Nuventix SynJet is the only active cooling option available that makes sense.”

Nuventix’ SynJet LED cooling technology is currently utilized by leading LED lighting manufacturers to cool high brightness LED lights. SynJet technology is quiet, flexible and more reliable than even the LED it cools. This technology allows designers and manufacturers to build energy efficient lighting solutions without thermal constraints. In addition to reducing energy consumption, SynJet technology also ensures LED light engines run brighter and longer, up to 100,000 hours, providing the end user with better quality, longer-lasting and more cost efficient bulb and fixture.

Sponsored by the U.S. DOE, the Illuminating Engineering Society of North America, and the International Association of Lighting Designers, the Next Generation Lighting competition was launched in 2008 to promote excellence in the design of energy-efficient LED luminaires for commercial lighting applications. To select the 2010 winners, a panel of 12 judges assessed each luminaire for lighting performance, appearance, adjustability, construction, energy efficiency andindustry design.

LUXEON S Sets the Benchmark for Illumination Grade LEDs and Provides a New Way to Talk About LED Performance


As LUXEON S moves into volume production, the lighting industry is embracing the simplicity of hot testing and color binning and the quality of light that Philips Lumileds has proved possible with its white LUXEON LEDs. Introduced in February, the new LUXEON S LED is the most direct evidence that the LED industry is shedding its semiconductor skin and becoming a part of the lighting community.


“The language of our industry is changing,” said Rick Hamburger, the company’s Director of Segment Marketing. “To truly impact the lighting industry, we have to deliver more than numbers for efficacy and flux, we have to show we understand and can deliver illumination capabilities like ‘Punch’ and ‘Sparkle’. With LUXEON S we take a customer and application approach to delivering quality of light and ease of use for retail lighting applications like spot lamps.”

With LUXEON S, Philips Lumileds introduces new way of talking about Illumination Grade LEDs: Hot Testing and Binning, and Freedom From Binning.


 
Hot Testing and Binning describes the process by which Lumileds tests, targets, and specifies Illumination Grade LEDs. For LUXEON S, this means testing the product at 85°C which is the typical junction temperatures in an actual application. At this temperature, the company can provide accurate information about how LUXEON S will perform in the application. In addition, from a color perspective, it completely removes the need to understand, calculate, and adjust for color shift over temperature because the LED is already specified at the use temperature.

Freedom From Binning literally means that there are no color bin selections to be made. In the case of LUXEON S, this means that today, customers can select a correlated color temperature of 3000K and know that every LED, at real world operating conditions, will provide high quality white light (CRI>80) within a 3 step MacAdam Ellipse centered on the black body curve. The ability to target this level of color performance is unique to LUXEON LEDs and means the lighting industry can access unmatched uniformity and consistency within the light beam and between emitters.

LUXEON S is targeted at spot applications in the retail and hospitality segments where “Punch” is a critical factor. In addition to Freedom From Binning, LUXEON S delivers 1300 “hot” lumens from a very small optical source that enables a 10° beam from a compact reflector less than 50 mm in diameter. In a retail spot or down light the result is tight, sharp beams that deliver high center beam intensity with beam uniformity that highlights and gives depth to objects that are being illuminated.

2011年3月25日 星期五

Ceiling Fan includes dimmable LED luminaire.

At high speed, Landan(TM) LED Ceiling Fan delivers 5,621 cfm airflow with efficiency of 194 cfm/W. Unit's LED luminaire features CREE LEDs on top to create uplight glow and LED cluster to provide downlighting.

Uplight includes 8 LEDs that consume 10 W to produce 627 lumens, while downlight uses 12 LEDs that consume 15 W to deliver 855 lumens. Offering 60 in. blade sweep, Energy Star-rated fan uses 29 W at high speed without lighting and 54 W when used with uplight and downlight.

2011年3月23日 星期三

Patient Friendly Illumination for St. Croix Medical Center

enLux LED Down Lights Provide Energy Saving, Patient Friendly Illumination for St. Croix Medical Center


Whether you're a resident or business owner, living in the United States Virgin Islands (U.S.V.I.) consists of jaw-dropping views, year-round tropical weather and 38 cents per kilowatt-hour, the highest price of any U.S. state, island or territory.

Michael Bruno, a five-year resident and owner of Electricity Wise Strategies, and Renee M. D'Adamo, owner of RMD Architecture, know first-hand of the concerns the people of U.S.V.I. have when it comes dealing with high energy costs and usage.

"Alarming is an understatement," says Bruno. "No matter how large or minute a project is, it's always a factor that weighs heavily on the property owner, and ultimately has a trickledown effect that spreads throughout."

Primary Care, PLLC is a privately owned and operated family practice that was established in 1986, when Dr. Arakere B. Prasad decided to make the island of St. Croix his permanent home. Primary Care, PLLC is one of the few facilities on St. Croix that offers same-day services (appointments are on a limited basis) to those who require immediate medical attention. Along with Dr. Prasad, the staff includes two front office clerks, two billing clerks, two nurses, two nurse practitioners and an office manager that ensure a constant patient flow.

2011年3月16日 星期三

Seoul Semiconductor führt neue Hochleistungs-LEDs Acriche 7 und Acriche 8 ein

Seoul Semiconductor (SSC), einer der weltweit führenden Anbieter und Innovationstreiber in der LED-Technologie, präsentiert im Rahmen seiner Produktoffensive 2011 gleich zwei neue LEDs der Acriche-Produktreihe: die sehr kleine A7 und die A8 als Ersatz für klassische Glühbirnen. Durch Verzicht auf den kurzlebigen Konverter halten Acriche-LEDs länger als die bisher üblichen 10.000 Stunden. Die Produktion der beiden neuen Aushängeschilder läuft seit Anfang März.

"Die neue Acriche-Reihe ist kleiner, aufregender und noch vielseitiger nutzbar", so Manuel Zarauza, Managing Director Europe & Emerging Markets bei Seoul Semiconductor. "Seoul Semiconductor ist das einzige Unternehmen das Designern und Industrie eine Wechselstrom-LED ohne Konverter bietet."

Acriche 7 - Super kleine 3,2W Hochleistungs-LED

Aufgrund der ständig steigenden Nachfrage nach leistungsstarken, energieeffizienten und zugleich preisgünstigen LEDs, schreibt SSC der neuen A7-Produktreihe sehr großes Potenzial als Hochleistungs-LED zu. Die A7 hat ein Keramikgehäuse und ist kleiner als ihre Vorgängerin, dabei zuverlässiger und sie besticht durch größere Konstanz bei Spannungsschwankungen. Die winzige 3,2W-Leuchtdiode mit den Maßen 8x8x3,7mm liefert als Lichtquelle 305 lm mit einer Leuchtdauer von bis zu 40.000 Stunden. Die A7 eignet sich ideal für kommerzielle Beleuchtungsanlagen wie etwa als Downlight, MR16, PAR30 und PAR38.

Acriche 8 - ein LED-Gehäuse ersetzt eine 60W-Glühlampe

Die Acriche 8 ist ein LED-Element, das speziell für Einbauleuchten verwendet wird. Sie liefert eine Lichtquelle mit 700 lm und kann so mühelos eine 60 Watt Birne ersetzen. Die hocheffiziente Leuchtdiode ist zudem sehr preiswert, dank des Verzichts auf einen Konverter in der gesamten Acriche-Produktreihe und auf teures Metallsubstrat im SMD-Verfahren gegen die Wärmeabstrahlung der Chips. Als COB (Chip-on-Board) ist die A8 als Einbaumodul auf einer Aluminiumplatte befestigt. Mit den Maßen 25x22x2 mm ist sie speziell für Downlights und Innenraumbeleuchtungen konzipiert.

Sowohl die A7 als auch die A8 können für Wechsel- als auch für Gleichstrom ohne Wandler genutzt werden und sind für gängige Wechselstromspannungen wie 110V/220V als auch für andere Hoch- oder Niedrigvoltspannungen geeignet. Der expansive koreanische Halbleiterhersteller SSC plant über das Gesamtjahr hinweg fast monatlich neue Produkte auf den Markt zu bringen. Bereits Anfang des Jahres hatte SSC zwei neue ultrahelle weiße LED-Lampen präsentiert.

2011年3月15日 星期二

Fight Led Teens To Set Home On Fire

Four teenagers were in jail Tuesday, accused of trying to burn down a house in Daytona Beach, but two of them are charged with more than just arson because police believe they were trying to kill the people inside.

These teens were all friends at one point, but a series of fights got to the point where two of them are accused of taking Yoo-hoo bottles filled with gas, dumping them on the porch of the Foote Court home (see map), and trying to burn it down with people sleeping inside.

It was only the smashing glass of a side window that woke Christopher Johnson and his girlfriend out of bed, and they were shocked at what they found at their front door.

"Imagine you opening the door and the first thing you feel is heat," Christopher Johnson told WFTV.

Fire was climbing the walls of their small home, burning from a gasoline soaked blanket on a chair. Johnson and Grant grabbed bowls from the kitchen, filled them with water, and ran a bucket brigade to stop the fire before it burned through the wall.

"I never thought it would escalate this far. I'm 24, these kids are 18, 19," Grant said.

Police said the kids, now charged with attempted murder and arson, were led by Lillian Corlett. The 18-year-old had been fighting with Grant's younger sister, possibly over a boy, Grant said, and the fight ended up at her house.

Grant said Corlett had threatened to burn down the house, and reports say it was Alicia Macey who helped her dump the gasoline and light the flame.

Two other teens, Kristina Glover and Patrick Eversole, allegedly watched it all happen. Eversole was the one who broke the window when he saw what was happening. It was the only warning the people inside had.

"This is the only thing that saved us. If it was not for this, we would not be here right now," Grant said.

All four teens are being held without bail. Police reports say they all admitted, in recorded interviews, to being part of the plot. All four are charged with arson, and Corlett and Macey are also charged with attempted homicide.

2011年3月14日 星期一

The Darkness II Hands on Preview

The Darkness II Hands on Preview

There was a demo of The Darkness II available for play at PAX East this year and I had the wonderful opportunity to get my hands on all of its gory glory. The demo showcased the beginning of the game in a pre-alpha build.

At the start of the demo you are placed in the shoes of a familiar face from the original Darkness game, Jackie Estacado. Throughout the demo you never leave the first person perspective, even during cut scenes the player has complete control over the movement of Jackie’s head so you can scope out the surrounding areas. When I finally got my hands on a controller I found myself groggy in a small, dark room. Two other characters are in the room with Jackie, one is a deformed man whose body looks as if it had been burned severely from head to toe. The other character was also male but without the deformities of what you learn is his ally. This character however at the start of the demo is literally crucifying Jackie to a board with railroad spikes. When I turned my head to the left and watched the man slamming a railroad spike through the palm of my hand with a hammer, I knew this was going to be a wild ride.At this point in the demo the deformed man explains to Jackie that he wants to obtain the Darkness that’s inside of him, and he also informs us that the Darkness will only leave its current host with the willful passing from that host. In the middle of the room with the three men is a stand with a strange looking case on the top of it. Into the case is flowing a dark essence from Jackie’s body, and this is the way the deformed man attempts to steal the Darkness from within Jackie, but as previously mentioned it will only leave its current host if it is passed on out of free will from that host. The deformed man then proceeds to “persuade” Jackie into giving up his dark powers. The other man in the room then rolls a TV stand in front of Jackie that starts playing a movie, and at this point the screen goes hazy and Jackie flashes back to earlier point in time.


The flashback brings Jackie to a restaurant where he is greeted by a man that refers to him as ‘boss’ and the same man then proceeded to lead me to my own private table in the back of the restaurant. Already sitting at the private table were two girls that ask Jackie if he remembers them, to which he replies “Sorry ladies, I didn’t recognize you with your clothes on.” The girls respond with a giggle and then in an instant the girl sitting across from Jackie on the right takes a bullet in the back of the head from the window. The bullet is immediately followed by a van crashing through the wall into the table that Jackie is sitting at. When Jackie finally came to he looks down to see that his right leg has been burned and mangled, so there is no way he can walk. The man that led me to the table is now at Jackie’s side and hands him a pistol and tells him to keep the now fast approaching enemies off of their backs. The man then proceeds to pull Jackie through the restaurant and that’s when I finally took full control (almost) over Jackie.

Development office’s demise led to city loss of grant funds

Anniston’s loss last spring of federal funds totaling $569,794 to help prevent homelessness was caused by factors that began sometime before authorities actually took the money away.

In 2007, the city hired Clarence Williams to manage the Community Development Block Grant fund, money delivered through the Department of Housing and Urban Development.

The program, in which Anniston has participated for decades, funds a number of housing-related activities, including a loan program for low-income residents to bring their homes up to code.

Williams’ contract specified that he was to receive $60,000 per year to act as the coordinator of the CDBG program. Former city manager George Monk was working for Anniston at the time Williams was hired and was Williams’ supervisor, he said.

“One of the things that he got excited about was the possibility of bringing other programs to Anniston through other grants,” Monk said. “I gave him the green light.”

When Williams secured the new grants, he also brought a new contract to the City Council asking for additional money to manage the grants, City Manager Don Hoyt said recently. Each time the contract was brought up, the council either tabled the request or turned it down, Hoyt said.

When the council turned down his request for more money, Hoyt said, Williams refused to manage the grants. That’s not a good thing to happen in the realm of federal grants — authorities like to know someone is handling their money according to its original purpose.

Repeated attempts by The Star to locate Williams, who resigned in May, have been unsuccessful.

Darlene Emory worked with Williams on the CDBG fund. She resigned in April before the problems in the Community Development Department came to light. Emory said she was there when Williams handed the responsibility for managing the homeless grants to Hoyt. Williams handed him the paperwork and the timeline and Hoyt should have taken care of it, she said.

“This one is on the city,” Emory said. “They sat there and did not do anything, nothing with all that money. That’s how they lost it.”

She wasn’t sure when Williams handed everything over to Hoyt, but Finance Director Danny McCullars wrote in an e-mail that it was sometime in January 2010, four months after the grant was allocated.

The way Emory sees it, the problem stems from the contract dispute.

“That program was going to entail a lot of work,” Emory said. “All it boiled down to is they did not want to give Clarence and I a raise.”

Alabama Department of Economic and Community Affairs spokesman Jim Plott said the grant money was pulled because Anniston wasn’t filing the required paperwork to the department.

“ADECA did receive letters from the Anniston program, but that was after the HPRP program had been terminated after no documentation had been received in the eight months since the funding was awarded,” Plott said by e-mail.

The department sent several notices and e-mails to the city before it finally pulled the money on April 14. Most went to Williams, but the final notice of the recall was sent also to Hoyt and Mayor Gene Robinson, Plott said.

The recall happened at the same time two women came to the council complaining that problems with the CDBG program had left them homeless, prompting the council members to request a HUD investigation. The next day, at the request of HUD, the city closed the Community Development office and posted a police guard at the door to ensure the records would not be tampered with. The city has received no findings from the investigation, Hoyt said.

The city has since hired Development Solutions, a Bessemer-based consulting company, to manage the CDBG program.

Councilman David Dawson said he wants the council to solidify protocol for the Community Development Department to make sure nothing like this ever happens again.

“Nobody was looking over, you know, that department,” Dawson said. “There are just some things that went on wrong during that.”

Someone, either the city manager or some other department head, is going to have to oversee the department, Dawson said.

Dawson would also like to talk to Anniston’s congressmen to see if the lost funding can be restored.

As it is, the “lost” grant money isn’t going to waste: Officials say it made its way to a Homeless Coalition organization serving Mobile and Baldwin counties.

2011年3月8日 星期二

Home Digital Home

The technology is new, but the situation is not, Consider this... The electric light and the telephone didn't become common until well after they were invented. It's simply because nobody knew what to do with them. There wasn't anything to plug in and there wasn't anybody else with a phone to talk to. The technology existed, but the applications hadn't been invented yet.

It wasn't until the late seventies that coaxial cable began to appear in new homes. It wasn't needed until people started having cable TV in several rooms. Home technologies have advanced at a glacial pace for over eighty years. Hang on to your hats folks. A paradigm shift is taking place right now. It's a revolution, a transformation, a sort of metamorphosis. It does not just happen, but rather, is driven by agents of change.

Timekeeping has existed for centuries, but it had no urgent application, no real meaning for the masses until Watt and Stephenson invented the locomotive and, hence, the schedule.

The all-digital home network is here today......
and its proponents are doing their best not to make the mistakes of the past. The agents of change aren't quite so random this time. We've lived in an analog world for so long that making the paradigm shift in our lifestyles never occurred to us. Most people with mortgages and kids have survived the transition from the typewriter to the PC well enough. And many have even started integrating cell phones and PDA's into their daily lives.

Although these devices have made us more productive, have they really saved us any time? If anything, people work more frantically, in more places and with less leisure time than their parents did. But, the changes in lifestyle that these items have created have been subtle compared to the next step.

In the all-digital home/office everything communicates with everything else.
The only connection to many devices will be a single cable, or frequently no cables at all. A device in this environment may be added or removed at any time even while the system is operating. It announces its presence to the other components and establishes communication as soon as it is plugged in.

In addition, new specifications have been developed for wireless links between laptops, mobile phones and many other portable devices. The goal will be to allow devices to communicate as a network automatically and without being physically connected. There are some pretty cool applications for this.

2011年3月7日 星期一

LED Downlights - Why Buy Now?

If you wander into your local DIY superstore and go to the lighting section you will find that displays of LED downlights are becoming more visible. The most common are direct replacements for GU10 mains voltage halogen downlights (same size & shape and you don't have to change your light fittings). However one look at the price and the guaranteed reaction is EXPENSIVE!!!.

But is it????

A halogen bulb costs around a £1.00 compared to about £18 for a 4 or 5 watt LED. Eighteen times the cost.

However LED's use less power, last longer and don't generate as much heat.

A typical LED downlight is rated at 25,000 hours whereas a mains voltage halogen bulb is good for 1,000 hours. So buying one LED light is equivalent to buying 25 halogen bulbs. A net saving of £7

As far as power consumption is concerned LED' consume a tenth of the power of halogens. If you assume that electricity costs 10p a kilowatt hour a 5 watt LED consumes £12.50 during its lifetime. Compare this to 50 watt halogens which will cost £125 to run. A net saving of £112.50

The third consideration is heat. Halogens get hot so you can't wrap then in insulation without asking for trouble ( increased fire risk, melted cables, bulbs frequently popping). If you install them according to the manufacturers instructions halogens need a gap in the insulation around each downlight. This sort of defeats the idea of insulation and means that halogens are very good at heating up your loft space when they are on and cooling down your room when they are off. LED's don't get hot so you can insulate and save on your heating bills.

So do you replace your halogens with LED's or not? The only disadvantage is initial cost but if you take a longer term view each LED saves you over £100 during its lifetime.

As with all new technological innovations prices start high but decrease as sales increase. You can wait until LED prices come down or you could be proactive. Just buy one and try it. You will save money, you are reducing your carbon foot print and you are helping to increase those sales volumes which will bring prices down.

2011年3月2日 星期三

Getting Down With LED Downlights

When installing lights into a room it is worth carefully considering what lighting solutions will best suit your need. A very popular choice of lighting for the modern day home is the LED downlight. It is often a common choice for home owners to install LED downlights in their kitchens, bathrooms or even bedrooms, to give the room a very stylish and modern feel that other lights just don't give..

An LED downlight is normally fitted into a narrow opening within the ceiling above the desired room. The way the light is fitted means that it is primarily hidden to the naked eye, giving the appearance of a light shining from a hole above the ceiling into the desired room. Using an LED downlight to light a room gives choice a deal of choice to the homeowner with a variety of options available, such as coloured LED bulbs to create different lighting effects within the home from what you would typically find. The downlight will concentrate its light downwards into the room and has the capability to shine as broadly as a floodlight or as narrowly as a spot light, the choice is really yours.

The LED downlight you purchase will be made up of two main components, apart from the bulb of course. These are known as the trim and the housing. The trim is the visible part of the light. There are a wide variety of trim styles available for many different rooms and decors, ranging from chrome to colour and from metal to plastic, and so on. The housing of the downlight is the fixture to hold the light in place in the ceiling. Often the housing will not be at all visible to the eye, but actually in the ceiling, and will hold the actual bulb itself.

An LED downilght is not only an attractive light source for your kitchen, bedroom or bathroom but it is also a powerful and efficient source of light that often tends to operate at very low heat levels. This not only make it an attractive light but it also makes it an ideal item to ensure that your lighting fixture will not be a fire hazard whilst left on for an extended period of time in the home.

LED downlights come in many varieties so it is recommended that you speak to a sales assistant about your specific needs before you purchase the said lights. Such things to consider will be what colours fit your room, how strong you want the light to be, and if you prefer it to light the room in the style of a spotlight of a floodlight. Downlights are also commonly easy to install however should you have any questions or problems with installation it is recommended you speak either to a light fitting professional or a customer service representative and they will be more than willing to answer your questions. When searching for LED downlights there are is a wide range available at great prices simply through searching the internet.