By improving all the technologies involved in the manufacture of LEDs, OSRAM 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 coordinates at 0.349/ 0.393 (cx/cy). Potential applications incl...