Osram claims a record from R&D LED

It's reported Osram is claiming a record for luminous flux and efficacy from an LED driven at 350 mA.

It says that its development engineers have achieved new records for the brightness and efficiency of white LEDs in the laboratory. Under standard conditions with an operating current of 350 mA, brightness peaked at a value of 155 lm, and efficacy at 136 lm/W.

White prototype LEDs with 1 mm2 chips were used. The light produced had a color temperature of 5000 K, with color (x,y) coordinates at (0.349, 0.393).

As shown in the graph, the LEDs can be driven at 1.4 A, and produce up to 500 lm.

The key to success was a perfectly matched system of optimized chip technology, a highly advanced and extremely efficient light converter and a special high-performance package. By far, Osram has already applied for patents for the technologies that lie behind these records.

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