LED is 30% smaller but provides twice the power

11th December 2014
Siobhan O'Gorman

The Osram Ostar Stage, an LED designed for stage lighting, has been released by Osram Opto Semiconductors. Although the LED is only 30% larger than previous members of the product family, it provides more than twice the lumen output. The LED contains 2mm2 high-current chips per colour that can handle a maximum of 4.5A per chip. This will enable moving heads for stage and exhibition lighting to be more powerful and more compact at the same time.

The Osram Ostar Stage LED is equipped with four high-current chips based on the latest thin-film and UX:3 chip technologies. With an area of 2mm² each, the chips are twice as large as the previous ones but, at 5.7x6.4x1.3mm, the package size is only slightly larger. Thin-film chips in red and UX:3 chips in green, blue and white are used. Up to 4.5A can be applied to each chip, which allows more light to be produced from such a small surface area. With a binning current of 1.4A, the red chips achieve typical values of 140lm, and the green chips 280lm. The ‘deep blue’ chip provides a light output of 1.8W. If the LED is operated at the maximum current of 4.5A, the brightness per colour increases by a factor of 2.6. The white chip in the LED will have a lifetime of 20,000 hours (L50/B50) at full output thanks to a ceramic converter which enables it to achieve a brightness of more than 1000lm.

The Osram Ostar Stage is the latest step by Osram Opto Semiconductors on the path toward high-power LEDs for stage spotlights that emit a large amount of light from a small surface area, leading to more compact spotlight designs. This family of products is not only suitable for stage lighting but also for moving heads and spotlights for trade fairs and architectural lighting.

The Osram Ostar Stage LED will be unveiled for the first time at the 2015 Consumer Electronics Show, which takes place from 6th to 9th January, in Las Vegas, USA.

“We are continually developing the chips and the package for the Osram Ostar Stage family so that we can offer our customers high-quality products in different output classes,” said Andrew Lin, NAFTA Product Marketing Manager LED Industry, Osram Opto Semiconductors. “Our aim with this LED is to raise the standard for moving heads in the high-output category.”

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