OSRAM (Santa Clara, CA) has introduced white LEDs with an operating current of 350 mA, brightness peaked at a value of 155 lm, and efficiency at 136 lm/W. Potential applications for the high-performance LED technology include general illumination, the automotive sector, and any application that requires large, high-power LEDs. These semiconductor light sources are also suitable for high operating currents. At 1.4 A, they can produce up to 500 lm of white light. In the future, the LEDs can also be used for projection applications as blue and green chip versions.

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    This article first appeared in the February, 2009 issue of Photonics Tech Briefs Magazine (Vol. 33 No. 2).

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