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LumiLeds Lighting Announces Breakthrough in High-Flux AlInGaN LEDs

Source: LumiLeds Lighting

New Devices Output as High as 25 Lumens per LED (at 505 nm) -- 2X Previous Values

San Jose, CA. LumiLeds Lighting today introduced a breakthrough in their High-Flux LEDs, with improvements in optical output power and efficiency. The AlInGaN technology is the standard technology for Light Emitting Diodes (LEDs) in the blue and green areas of the color spectrum. LumiLeds has developed a unique power package that allows higher power LEDs to be housed and operated.

This recent breakthrough doubles the power output and efficiency as previously available in the LumiLeds Power Packages. Typical output of the new devices are:

- Blue LEDs: 100mW, 5-8 lumens

- Green LEDs: 40mW, 10-20 lumens

- Blue/Green LEDs: 70mW, 15-25 lumens.

These devices also exhibit superior electrical and thermal characteristics with typical forward voltages of 2.9 to 3.5 volts, thermal resistance of 12C/W, and series resistance less than 1 ohm at a 350mA. This new material will be in production LEDs in November 2000.

As a comparison, the industry standard 5mm LEDs output less than 10mW in the blue spectrum. LumiLeds Labs is already working on the next improvement, and has demonstrated devices that output 180mW in the blue region. "These are the highest flux LEDs on the market," said Frank Steranka, LumiLeds materials research manager. "We continue to push the envelope to get increased light output and efficiency in our materials and LED packages."

The practical implications of this breakthrough are two-fold. As the LED technology improves, it opens new opportunities for LEDs to replace other technologies -- such as incandescent. LEDs last at least ten times longer than incandescent, they are solid state devices containing no glass or filament (so they are not fragile), and they consume up to 80% less energy. Perhaps the biggest advantage of LEDs over other technologies is design flexibility. LEDs give lighting designers more flexibility than other technologies. With a very monochromatic light output in various colors, and a discrete light source, designers are able to "put the light where it needs to be," and without filtering.

With LumiLeds power package technology, fewer LEDs are required for lighting solutions, thus reducing cost. For example, a common application for LEDs is traffic signals, which required approximately 180 5mm LEDs to meet the light output spec. With LumiLeds LEDs, this is reduced to less than 12 LEDs.

About LumiLeds

LumiLeds Lighting is the leader in high power LEDs, dedicated to developing innovative solid-state lighting solutions in the automotive lighting, traffic signaling, signage, and general lighting markets. The company is vertically integrated, producing core LED material, LED packaging, and light source solutions. LumiLeds is one of the few companies with LED material producing capabilities in all three base colors -- red, green, blue.

LumiLeds Lighting, headquartered in San Jose, Calif., is a joint venture company between Agilent Technologies and Philips Lighting. LumiLeds maintains a global infrastructure including operations in Best, The Netherlands, Penang, Malaysia, and sales offices throughout the world. For more information on LumiLeds, please visit www.LumiLeds.com.

Contact: LumiLeds Lighting Doug Silkwood Tel: 408/435-6031 Doug.Silkwood@LumiLeds.com

LumiLeds Lighting
Doug Silkwood
Tel: 408/435-6031
Doug.Silkwood@LumiLeds.com
E-mail: Doug.Silkwood@LumiLeds.com
Web site: http://www.LumiLeds.com
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