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Intermatix Phosphor Opens Doors for LED Lighting
Intematix has developed a separate phosphor component (shown here) for LED lights, breaking with the conventional method of a phosphor coating. (Credit: Intematix)
Intematix today announced an component designed to improve LED lighting efficiency and give light fixture manufacturers more flexibility in adjusting light qualities.
The Fremont, Calif.-based company announced its ChromaLit product line, which offers a separate phosphor component that converts the blue light of LED light sources into pleasing white light.
Phosphors, which are compounds with inherent luminescence, are used for all LED light fixtures and bulbs. They are generally in a powder form that is directly coated onto LED light sources, which are semiconductors that emit light when electricity is passed through them.
By contrast, ChromaLit is a separate, disk-shaped component. According to Intematix, this allows for LED light fixtures with more possible shapes, including three-dimensional and curved LED light fixtures.
A separate phosphor component is also up to 30 percent more energy efficient, and manufacturers can swap in various phosphor components on the same LED light source to create products with a different color temperature and color rendering index.
Having a separate phosphor component can extend the life and performance of LEDs, Intematix CEO Mark Swoboda told Scientific American. That’s because phosphor coating on an LED light source often reflects much of the light back toward the semiconductor light source. By contrast, a layered design means that reflected light can still be emitted around the sides of the phosphor component.
The company is targeting ChromaLit at LED light fixture manufacturers in both the commercial and residential markets.
Cree’s New Lighting-Class LEDs Shatter Industry Performance Standards
Commercially Available Single-Die XLamp® XM-L LEDs Deliver 1000 Lumens at 100 Lumens per Watt
DURHAM, N.C., November 10, 2010 — Cree, Inc. (Nasdaq: CREE), a market leader in LED lighting, announces the commercial availability of the industry’s brightest, highest-performance lighting-class LEDs. With breakthrough light output and efficacy, Cree XLamp® XM-L LEDs are designed for very-high-lumen applications, such as high-bay or roadway lighting.
The XLamp XM-L LED has gone from concept to commercial availability in less than eight months, demonstrating Cree’s proven commitment to developing the highest-performance, most cost-effective LEDs optimized for each lighting application.
“The XLamp XM-L LED can fundamentally change the way Cree customers look at LED light,” said John Edmond, Cree director of advanced optoelectronics. “An LED with this level of light output and this level of efficacy can accelerate the development of high-output commercial lighting products and could enable applications we haven’t even thought of yet. This sets a new standard for LED performance.”
Cool white (6500 K) XLamp XM-L LEDs deliver 1000 lumens with 100 lumens per watt efficacy at 3 A. In a compact 5-mm x 5-mm footprint, XM-L LEDs offer the unique combination of very high efficacy at very high drive currents, delivering light output and efficacy of 160 lumens per watt at 350 mA and up to 315 lumens and 150 lumens per watt at 700 mA, providing a 20-percent efficiency gain from the Cree current industry-leading XLamp XP-G LEDs.
XLamp XM-L LEDs are available in sample and production quantities with standard lead times. To locate a distributor, please visit http://www.cree.com/buyxlamp.
Macy’s Goes Green with MSi LEDs
MSi Deploys Cypress LED Controllers in Macy’s Stores
By Macy has decided to replace around 117,000 traditional incandescent light bulbs in 86 stores within its chain, with new LED lamps. The new lamps use around 73 percent less energy in comparison to the traditional incandescent light bulbs, and installing the new lamps will help Macy in saving around 16,200 megawatts per hour every year, which is equal to plant over 65,500 trees in terms of energy conservation. While the traditional bulbs have an expected life of less than one year, the LED lamps offer uninterrupted services for around 10 years and also cut down the landfill disposal considerably.
“Many retailers are a little concerned about the initial investment of converting to LED lighting,” commented said Bruce Johnson, managing partner at MSi. “But if they take the time to run the numbers as Macy’s has, they’ll see that switching over produces a tremendous return on their investment.”
As more and more enterprise and retail customers worldwide have been adopting the LED lamps, Cypress provides a wide range of lighting solutions that enable the users in controlling the way their LED lamps function. These solutions comprise of stand-alone AC-DC Power Controllers for LED retrofits, and PowerPSoC, a programmable power controller that integrates onboard power regulation and power drive with a microcontroller capable of 16-bit dimming to full custom color mixing, and offers enhanced levels of intelligent integration. The company has developed temperature or optical feedback algorithms, which can be incorporated with selected designs to reduce the design time by several weeks’ duration. Additionally, it provides communication resources such as wireless and Powerline solutions as an alternative to expensive rewiring.
“It’s exciting to see our technology deliver significant benefits in a major project such as Macy’s retrofit,” said Brian Moody, director of Marketing for PowerPSoC business at Cypress. “As more companies see the tangible benefits of LED lighting, we can see a ‘snowball effect’ leading to significant growth in which we are well positioned to participate.”
In September 2010, Cypress Semiconductor announced that it released a new CapSense capacitive touch-sensing controller that will help designers to attain mechanical button replacement without the need to code new firmware or learn new software.
Raja Singh Chaudhary is a contributing editor for TMCnet. To read more of Raja’s articles, please visit his columnist page.
Edited by Tammy Wolf
Article Sourced From TMCnet.com
An Enlightening Tour 