New Chip Platform from Osram Increases LED Efficiency by 30%

Jul 21, 2010 Developers at OSRAM Opto Semiconductors have succeeded in increasing the efficiency of red thin-film LEDs by 30% – a new record. The record efficiency for an LED of 119 lm/W at an operating current of 350 mA (136 lm/W at 70mA) has been achieved by the latest generation of a red 1 mm² thin-film chip (InGaAlP). The chip is accommodated in a Golden Dragon Plus package and emits at a wavelength of 615 nm (l dominant). At present there is no LED with higher efficiency at this wavelength. Its efficiency has been measured at 44% (49% at 70mA), and even exceeds 50% for a wavelength of 642 nm.

www.osram.com


Author:  BIO T&T

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