OSRAM optimizes LED for improved efficiency with stable luminous flux

March 1, 2012 — OSRAM Opto Semiconductors released the Oslon SSL LED, using optimized LED chips and packaging technologies to boost light output, with a 25% efficiency increase over previous-generation LEDs. OSRAM stabilized the LED’s luminous flux at elevated temperatures, which simplifies luminaire design by improving thermal management. The LED chip is 1mm2, in a 3mm2 package form factor.

The temperature-stable light source generates a luminous flux of typically 98lm (luminous efficacy of 96lm/W) in warm white (3,000 K), with an operating current of 350mA at 85°C in the chip. This, coupled with reduced forward voltage (3.1V), achieves the 25% efficiency gain, and reduces the thermal management requirement for the chip. A smaller number of Oslon SSL LEDs provides the same luminous flux in a luminaire.

Thanks to the reflectivity of the package, the light that is irradiated to the side or to the back is reflected and can be used again.

The LEDs are available in warm and cool white, and two different lenses.

OSRAM AG (Munich, Germany) is a wholly-owned subsidiary of Siemens AG and a leading light manufacturer. Its subsidiary, OSRAM Opto Semiconductors GmbH, offers semiconductor-technology-based products for lighting, sensor and visualization applications. For more information, go to www.osram-os.com.

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