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5 July 2007


Osram doubles OSTAR Headlamp LED brightness to 620 lumens

Osram Opto Semiconductors of Regensburg, Germany says that it has further developed its OSTAR Headlamp LED (which has been certified according to the automotive standard), more than doubling its peak brightness from 250lm to 620lm at an operating current of 700mA (with power consumption of 12W). Typical brightness is 500lm. Initial samples are available, and volume production will start at the end of 2008.

The OSTAR Headlamp LED does not have a lens. Its five chips are connected in series and produce light with a color temperature of 6000K. However, in future Osram reckons that three or four OSTARs will be enough to produce the 1000 lumen required for headlights.

The brightness has been achieved due to a combination of measures. Osram says that the OSTAR Headlamp makes use of the features that gave its OSTAR Lighting LED product family a significant boost in brightness (to 1000lm). For example, the package has been designed to minimize reflections. Also, an improved converter and advances in thin-film technology have further improved luminous efficacy.

Like all LEDs with thin-film chips, says Osram, the OSTAR Headlamp offers a high luminance that is further enhanced by the closely packed chips. The LED can also be combined with small optics, takes up little space, and offers design flexibility.

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