Osram Opto Semiconductors has developed two LED prototypes for headlight manufacturers that combine new chip and package technologies to provide high light output, even at high currents; a uniform light pattern; thermal stability; and a good contrast ratio. The Oslon Black Flat is equipped with a ceramic converter and a quad flat no-lead package. Typical thermal resistance is 5 K/W. The black package represents high stability because the coefficient of thermal expansion of the LED matches that of the metal core board. The flattop, lens-free design is suitable for the close coupling required for lightguide designs. The Ostar Headlamp Pro meets a variety of requirements in terms of output and adaptability to ambient conditions.