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Osram preps red chip with 300 lumens of brightness

Posted: 19 Jul 2007 ?? ?Print Version ?Bookmark and Share

Keywords:thin-film technology? red chips?

Osram Opto Semiconductors GmbH is developing a red 1mm? chip, featuring the latest thin-film technology, with brightness values of more than 300 lumens.

The chip will be used in the company's Dragon and Ostar LEDs, and is targeted for applications in the projection and automotive sectors where high luminance and efficient output is in increased demand.

The red chip has a power consumption of 6W, achieves 52 lumens/W, and features a wavelength of 615nm from an operating current of 2A. As a comparison, the existing red Platinum Dragon has an output of 96 lumens from a consumption of 2.5W and a luminous efficacy of 38 lumens/W.

"Osram has achieved this enormous increase in brightness by designing the new red chips to handle higher currents. This has resulted from optimizing the series resistors," said Ralph Wirth, development engineer at OSRAM Opto Semiconductors.

Series production of the chips will start in Q3 2008.

- Ismini Scouras

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