Opto-Electronics


LEDs are getting brighter and brighter

8 March 2006 Opto-Electronics

Osram Opto Semiconductors has developed a new high-output lighting LED module. The Ostar Lighting LED, equipped with four or six series-connected chips has a hexagonal shape that allows for high packing densities. The six-chip version with lens delivers 420 lumen from an operating current of 700 mA. This is brighter than a 20 W low-voltage halogen lamp, according to Osram, therefore making LEDs suitable for use in more and more general lighting applications.

The specially developed hemispherical lens improves the efficiency with which light is emitted without affecting the beam characteristics. Basic versions without lenses are available for customer-specific optics. The white light colour is constant from every viewing angle and comes from colour conversion based on the chip coating method.

The six-chip versions of these high-output LEDs produce 420 lumen with a lens and 300 lumen without a lens, in each case at an operating current of 700 mA and an output of 15 W. The four-chip version produces 280 lumen with the lens and 200 lumen without the lens, in each case at an operating current of 700 mA and an output of 10 W.

For more information contact EBV Electrolink, +27 (0)21 402 1940.



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