Thursday, 29 December 2011

LEDs to replace Kanpur streetlights by 2020

By 2020, conventional streetlights in Kanpur (India) would be replaced by LEDs. The LEDs consume one-third of the power consumed by the conventional streetlights and also illuminate a larger area. The LED bulbs and tubelights would become a part of every household due to less power consumption, said Amrit Manwani, an alumnus of IIT-Kanpur. Manwani, a co-ordinator of 1972 batch, said LED tubelights and bulbs consume only 1/10 of the power consumed by tubelights and bulbs. He said that by 2020 only tubelight made of Light Emitting Diodes (LEDs) would be used in the country.

Tuesday, 27 December 2011

LEDs light up Leica microscopes

The LED illumination series LED5000 and LED3000 have been designed for high-end stereo microscopes and routine stereo microscope systems, respectively. Both series have spotlight, ringlight, and multicontrast illumination modules available. Lifetimes up to 50,000 hours nearly eliminate downtime. The LEDs save up to 90% of the power required by a 150-W halogen lamp. The LED5000 series can communicate with Leica Application Suite (LAS) software to save illumination settings with captured images and performing recall when needed.

Friday, 23 December 2011

The Stage expects savings after replacing 300 light bulbs

Warsaw venue The Stage has replaced nearly 300 incandescent bulbs on its marquee with more efficient LED bulbs using a grant worth about $2,200 from NYSEG. The project, completed last week, is expected to see significant savings in utility costs for the non-profit performing arts center, according to Paul Penner, the center's director. The LEDs are expected to use about one-tenth of the power that the incandescent bulbs used. "This will save us a huge amount on our electric bill," Penner said, noting the cost of lighting the marquee used to account for half of the total electric bill for the 23 South Main Street venue

Thursday, 22 December 2011

Just think of the electric bill!



If you’re the sort of homeowner who needs to have the best Christmas lights in the neighbourhood, don’t move to Riverside, California. Because it won’t be easy to outdo Kevin Judd, who has created a dazzling display – timed perfectly to LMFAO’s hit song Sexy and I Know it. The father-of-two used thousands of LEDs to create a multicoloured sequence that flashes in time with the American hip hop band's track.

Wednesday, 21 December 2011

LED Luminaires promote safety in parking garages.

Operating with self-contained 120-277 V LED driver, LED Parking Garage Luminaires include 40 W model that replaces 175 W metal halide fixtures while delivering 2,640 lumens at 5,000 K color temperature. Series' 70 W model replaces 250 W metal halide fixtures while producing 4,200 lumens at 5,000 K. Maintenance-free units, available with occupancy sensors, have polyester-coated, cast aluminum one-piece housing with shatter- and UV-resistant polycarbonate lens

Cree Licenses Pioneering Remote Phosphor Patents

Cree, Inc has granted five LED lighting manufacturers licenses to select Cree patents through its recently launched remote phosphor licensing program. By making fundamental remote phosphor patents available through license, Cree is further enabling LED lighting adoption, as Cree innovations facilitate the development of LED lights combining remote phosphor optical elements with blue LEDs.
"Cree is committed to the development of innovative, energy-efficient LED lighting technology and this program provides access to important technology developed by Cree," said George Brandes, Cree director of intellectual property licensing. "The remote phosphor licensing program is designed to provide rights under the relevant Cree patents that our LED customers need to develop and commercialize leading-edge LED luminaires and bulbs, accelerating the LED lighting revolution."
Initial licensees to Cree's remote phosphor patents include lighting innovators Aurora Energie Corp., Horner APG, Ledzworld Technology, Vexica Technology, and Wyndsor Lighting, LLC. Cree is currently in discussions with other companies to license the remote phosphor patents and aims to sign additional licensing agreements in the coming months. Details of the royalty-bearing licenses were not disclosed

Tuesday, 20 December 2011

Sharp expands its portfolio with even brighter LED arrays

The new LED modules from the new Mega Zeni series from Sharp radiate with an efficiency of up to 100 lm/W, a luminous flux of up to 4770 lm and are available with a (typical) CRI value of up to 93. They are thus one of the first industrial LED solutions to replace traditional 50W HID lamps.
The 50W Mega Zeni models from Sharp maintain the same compact dimensions and high CRI values, yet with considerably greater luminous fluxes. These have a luminous efficiency of between 3590 and 4770 lm, a light output of up to 100 lm/W in standard operating mode and a long service life of 40,000 hours at an operating temperature of up to 90°C. The new Mega Zeni modules are designed for a forward voltage of 50V and a forward current of 950 mA, but can also be operated with a standard power source of 1050mA. Other important features include: R9 values of over 85 with CRI values of over 90, MacAdam 3-step Ellipse binning, as well as good colour consistency and colour stability values over time under realistic operating conditions (hot lumen).


Monday, 19 December 2011

LEDs offer a brighter future

A field trial of LED light fittings in social housing says the new technology can deliver huge energy savings, reduce costs and makes residents feel safer. The study, carried out by the Energy Saving Trust (EST), measured the performance of more than 4,250 LED light fittings installed at 35 sites. The EST said it carried out the trial because an increasing number of LED lights were now commercially available.

Amerlux Launches Hornet LED Low Voltage Track Luminaires


Engineered to replace Halogen MR16 track heads with high performance levels, Amerlux launches the Hornet LED family of low voltage high performance track luminaires. The new 15-watt LED Hornet is a true replacement for a 50-watt MR16 halogen fixture in lumen output and center beam candlepower (CBCP), with the capability to replace track heads currently being used on existing low voltage track systems. Amerlux, a leader of task-specific, energy-efficient lighting solutions, is raising the bar again as an innovator of low-wattage LED solutions for retail, supermarket, commercial and hospitality markets. Designed with an inconspicuous, miniature size that fits into the palm of your hand, the Hornet LED luminaires are precision engineered for optimal thermal and optical performance. A state-of-the-art 15-watt LED (developed after one year of research by Philips Lumileds) provides light output equivalent to 50-watt halogen lamp while using one-third the power. Life at 70% of initial lumen output is rated at 50,000 hours, which is more than 10-15 times longer than halogen providing for lower operating and maintenance costs with a great energy savings.

"Hornet represents a significant step forward in energy efficient lighting solutions for the industry," explained Frank P. Diassi, Chairman and Founder of Amerlux. "Our latest LED offerings represent groundbreaking developments in engineering, design and technology that provide significant energy savings and a multitude of benefits."
With full range dimmability and specialized optics, Hornet was designed in a variety of beam-spread distributions that provide controlled accent lighting with excellent visual comfort. Designed with field replaceable, tool-free optics, the Hornet can be adapted to a 15-degree Spot, that delivers 800 lumens a 28-degree Flood with 785 lumens, or a 45-degree Wide Flood that delivers 775 lumens.
Amerlux uses microbinned LEDs to maintain color quality and consistency from fixture to fixture. Hornet deploys a crisp white light at a 3000K constant color temperature and a CRI of 82 that delivers clean consistent beams free of projected heat and UV/IR radiation, making it optimal for lighting color or heat sensitive merchandise.
Accessories include a Double Bezel, which accommodates up to two forms of media, and a one-inch Frontal Snoot with Cross Blade that receives up to two additional forms of media. Media cartridges include the Hexcel Louver, Spread Glass Lenses, Color Filters and Cross Blade for better glare control and cut-off for special effects. 

Friday, 16 December 2011

Vision Engineering Delivers Unparalleled Uniformity for LED Solutions


Vision Engineering announced that its patented Coining technology is available to lighting OEMs that endeavor to bring the most uniform lighting solutions to market at costs that make rapid adoption possible. Vision Engineering's technology can be implemented in lighting solutions for the commercial, industrial, residential, and entertainment segments.
Coining, or cold forming, is a well known process in the forging industry where 3 dimensional shapes can be formed to exacting tolerances. Vision Engineering has developed this technology and applied it to lighting. Using their technology, multiple geometric surfaces can be created to control the distribution of the light resulting in extremely uniform solutions.
"We're making is easier and more affordable for LED solution developers to get the light where they want it, need it, without trying to staff with optical engineers and designers," said Henry Avila, CEO of Vision Engineering. "We match our unique optical design capabilities with LUXEON LEDs to deliver the highest quality results."
Vision Engineering has implemented its technology in a line of Troffers for office lighting and its customers are delivering solutions for refrigeration, transparent LCD's displays, High bay lighting, and currently has a development agreement in aircraft interior lighting.
More information about Vision Engineering and its unique Coining technology can be found at www.visionengineering.com .

SavWatt to Launch P2i Treated LED Lights

SavWatt USA will soon launch a product line of LED Lights treated with the P2i process in which a patented Nano coating application is applied to the LED Light making them water, dirt, salt and fog resistant. Martin Gerber, SavWatt's CMO, commented, "Last week Motorola launched the new Verizon Droid Razr; this phone was treated with a Nano application and is fully water resistant. 1,000,000 phones were processed in a 2 week time period using the same technology which we have licensed. This commercial Nano application is proof of the value of our exclusive worldwide LED Light license. LEDs have a general life expectancy of 50,000 hrs. If you use your lights for 10 hours a day, this should be 13.7 yrs. If this is correct, then LEDs are definitely an investment, add that to the saving you would make on energy and you've got a very cost effective bulb! However, there are times when, even a high quality, LED Light life can be shortened by the Environment -- salt, fog, and humidity can cause corrosion and early failure, shortening their life time. P2i Nano application would protect our LED Lights from the environment and will definitely differentiate us from our competitors, Phillips, GE, and Sylvania, enabling us to offer a far superior product and warranty.

Wednesday, 14 December 2011

LEDs throw new light on energy saving at Air NZ

Air New Zealand has halved the amount of energy required to light key areas of its Auckland engineering base following installation of a new LED lighting product, Ecofluro. Ecofluro T8 LED tubes have been used to replace more than 2,100 fluorescent bulbs at the site, a move that has not only reduced Air New Zealand's energy usage, but also lowered its running costs. "Fluorescent bulbs, which are used by most New Zealand businesses, contribute to around 40% of the average office power bill so by replacing them with LED a business can literally halve this cost," says Paul Stoddart of Business Lighting Solutions, which manufactures Ecofluro.

Tuesday, 13 December 2011

Bozeman to test out LED streetlights

The (US) city of Bozeman plans to make some streetlights brighter and greener by switching to LEDs. Light-emitting diodes are expected to be installed this winter. City staff members are still finalizing the specifics, but city engineer Dustin Johnson said LEDs could be installed in streetlights along Durston Road, from Seventh to 11th avenues, and/or along West Babcock Street, from Main to Ferguson streets.

Monday, 12 December 2011

LEDnovation Releases Efficient 60W Equivalent Omnidirectional Lamp

LEDnovation released the world's most efficient 60 watt-equivalent omnidirectional A19 lamp. This new lamp addresses a need in the marketplace for high-quality solid-state light bulbs with beam distribution comparable to traditional incandescent A-lamps. The first in the series of EnhanceLite Omnidirectional lamps, the LEDH-A19-60-1-27D-IO offers 810-lumen output at a warm 2700K color temperature, delivering energy-saving LED light ideally suited for applications such as table lamps, wall sconces, hanging pendants, ceiling lamps and other luminaires and fixtures.
Describing the new lamp, Israel J. Morejon, CEO of LEDnovation, stated, "From the company's inception, our mission has been to deliver the highest quality light possible over a full spectrum of products. Our new omnidirectional A19 lamp truly embodies that mission by bringing crisp design and brilliant performance to traditional lighting applications. The LEDnovation team has done a remarkable job of developing a product that we are confident will exceed expectations. These light bulbs deliver high-performance in a number of critical areas: total lumen output, lumen per watt efficacy, color rendering, high power factor, stable color temperature and a long operational life."
The EnhanceLite Omnidirectional A19 lamp greatly expands the potential for businesses and property operators to save on energy costs while serving as environmental stewards. Exacting care was given to keeping the design not only in the ANSI form factor, but as close as possible to a 60 watt incandescent lamp to ensure proper fit in any standard fixture. This lamp complements our directional EnhanceLite® A19 products currently available and shipping from the Tampa, Florida based company.

Friday, 9 December 2011

Why LED does not mean a better picture

Don't listen to the hype. Ignore the commercials. Leer skeptically at the salesman. There is no such thing as anLED TV, and "LED" doesn't mean it's any better than other TVs.  LED is just a type of LCD, with strengths and weaknesses that make it better in some ways, worse in others, and rarely worth its price premium over other technologies.

Thursday, 8 December 2011

Toshiba LED to light up the Louvre

The Louvre Museum in Paris is now lit by Toshiba’s LED products, following a lighting ceremony on 6 December. Louvre Director Henri Loyrette and Toshiba's President Norio Sasaki illuminated the Pyramid, the Pyramidion and Pavilion Colbert during the ceremony after a count-down

Monday, 5 December 2011

Larson Introduces New LED

Larson Electronics’ Magnalight.com has announced the addition of the EXP-LED-RL-FX5R explosion proof rechargeable LED handheld light to its extensive line of portable explosion proof lighting solutions.
This explosion proof LED lantern produces 135 lumens of bright light and offers 5 different operating modes as well as U.L. and ATEX explosion proof compliance for hazardous locations. The EXP-LED-RL-FX5R is Class 1 Division 1 certified and an ideal portable work or inspection light for operators in hazardous locations where flammable gases, vapors and chemicals are present.
The EXP-LED-RL-FX5R explosion proof LED lantern is a durable and powerful rechargeable lighting solution for operators in hazardous locations who require a Class1 Division 1 compliant lighting solution. Constructed of a lightweight and impact resistant ABS plastic housing with shatterproof Lexan lens, this rechargeable LED handheld light incorporates a set of forward facing LEDs for powerful illumination and a set of three rear mounted LEDs for signal capable operation. The main light head on this explosion proof lantern is adjustable, allowing the operator to set the light down and adjust the head as needed for close work or inspection activities. All functions are controlled by a single trigger style switch, allowing the operator to cycle through 5 different operating modes simply by repeatedly activating the trigger. This rechargeable explosion proof handheld light has a12 hour runtime on a single charge of its integral 6 VDC Nickel Metal Hydride batteries and will accept up to 500 charge cycles before battery performance degrades. The entire unit is impact and vibration resistant, water resistant and has no exposed metal or contacts, making it ideal for heavy duty use in industrial work environments. In addition to its UL Class 1 Division 1 rating, this LED lantern is also intrinsically safe certified and MSHA, CE, and ATEX compliant as well.

Austin City decreases environmental impact by reducing energy consumption

The parking garage at the City Hall in Austin, Texas, houses 750 parking spaces and must leave its lights on 24 hours a day, making for high energy usage and big electrical bills. After evaluating several manufacturers' LED products, city officials chose LED luminaires from Cooper Lighting, an industry leader committed to delivering innovative products and driving transformational technology in the lighting industry. By replacing approximately 425 175-watt metal halide fixtures with McGraw-Edison Concise™ LED Luminaires, the city will reduce the wattage in the parking garage by 74 percent and save $46,000 annually in electricity costs.

Friday, 2 December 2011

Philips announces the largest energy saving LED lighting deal in Africa to date

Philips and Eskom (The South African state-owned utility company) announced the largest energy saving LED lighting deal in Africa to date. Under the agreement, 200,000 Philips MasterLED lamps are being distributed through Karebo Systems at discounted prices throughout South Africa to professional users of lighting such as hotels, banks, offices and retail outlets. These businesses and their staff will benefit from maintenance savings, great quality light and an enhanced sense of well-being.
The deal is aimed at replacing 50W Halogen bulbs with 7W & 10W LED lamps, which provide the same amount of light, and last significantly longer. The collective electricity savings potential of this deal is estimated to be 58GWh per year equal to ZAR 41 million and would save up to 60,000 tons of CO2. Based on calculations of 40-43W less power consumption, each lamp has the potential to annually save 280KWh of electricity equal to ZAR 200. In fact every four lamps installed will save the equivalent of three trees in terms of CO2 absorption. And the changeover just involves a simple switch of a bulb.
The distribution of the LED lamps is being handled by Karebo Systems whose task is to organize distribution throughout South Africa and ensure that the envisaged savings are achieved. “The key is to ensure that these energy saving lamps end up in the intended sockets” says Ravi Govender, Director, Karebo Systems. “LED technology is a relatively new technology and Eskom must be applauded for supporting this initiative. The rollout of these lamps is a wonderful job creation opportunity in South Africa. It is a definite win-win for all parties involved – especially the end user.”

Smart LED streetlights dim on command

New Jersey lighting technology company Amerlux is shining the light on its SmartSite intelligent LED street-lighting system. The lights are targeted at municipalities or commercial sites that are seeking to improve their energy-efficiency. What makes them worth attention are a number of factors, including the fact that they can be remote-controlled via a systems management console and that they can be programmed to dim over the course of an evening. The luminaires used in the system are LEDS, which means they can last a long time while using less energy than traditional metal halide or high-pressure sodium fixtures.

Thursday, 1 December 2011

LEDs Produced on Patterned Sapphire Substrates


MicroTech has developed a wet process station for the etching of PSS (Patterned Sapphire Substrate) wafers used to increase light extraction and efficiency in high brightness LEDs. The wet station can improve manufacturing throughput, a major stumbling block to making LEDs price competitive with fluorescent lighting.
As LED manufacturers look to decrease costs, the use of PSS becomes more important. The average light output power is reported to be up to 37% larger on a PSS than a standard sapphire wafer. The use of patterned sapphire substrates reduces the dislocation density in the GaN (gallium nitride) layer and enhances the LEE (light extraction efficiency) from the LED chip.
Traditional dry etching on PSS produces highly efficient, very bright light but throughput is slow and scalability is impacted as wafer sizes increase. Typically, more dry etch tools are needed to keep throughput up as wafer size increases.
In the wet etch process in the MicroTech system, GaN or InGaN (indium gallium nitride) coated wafers are submerged in the etch tank with a mixture of etching and buffering agents. Prior to submersion, a silicon dioxide mask is patterned using PECVD (plasma enhanced chemical vapor deposition). A lithography step exposes the desired pattern to etch. The sapphire etch process takes place between 260 degreesC and 300 degreesC. This ultra high temperature etches the wafers exponentially more quickly than the standard 150-180 degreesC process and therefore, speeds throughput.
Independent customer evaluations show a significant improvement in light extraction and efficiency in the substrates and a considerable cost savings, even if polishing work is performed on the wafers after etch to increase efficiencies. Development work is also being done to improve the dome shapes created on the wafers with a CMP (chemical mechanical polishing) process. New non-cone shapes are also under development.
Recently MicroTech announced the delivery of a similar concept process station to the solar industry that delivers high throughput and lower cost-of-ownership benefits by moving from a dry CVD process to an efficient, production-proven, environmentally friendly wet process.
About MicroTech Systems With over 25 years' experience in high technology equipment manufacturing, MicroTech Systems provides engineering, manufacturing and applications support for wet process and chemical distribution tools. Their innovative "intelligent process station" to monitor, measure and control the process makes their tools more efficient with a lower cost-of-ownership. They supply the semiconductor, solar, MEMS, LED, Biotech and FPD industries from their Silicon Valley headquarters, which includes a state-of-the-art cleanroom and process development lab. See www.microtechprocess.com .