Oslon Black Flat LED for automotive front lighting systems

The Oslon Black Flat LED from Osram Opto Semiconductors is a light source for automotive front lighting and is equipped with of Osram’s C2 ceramic conversion and UX:3 chip technology. At a power draw of only 2.3 W and an operating current of 700 mA, it achieves a typical luminous flux of 200 lm at 25°C. If operated at 1.2 A, it can achieve up to 270 lm. The light source operates up to application temperatures of 100°C in the chip.

Thermal management is said to be much simpler with this LED due to the greater thermal stability of the luminous flux and a temperature-optimised packaging process. This means that the typical thermal resistance has been reduced to 4 kW. The thermal coefficient of expansion of the LED’s black QFN (quad-flat no leads) package is matched to the coefficient of expansion of the metal core board.  All these properties make the Oslon Black Flat fully AECQ101 automotive qualified and capable of providing more than 100,000 h at 700 mA and a chip temperature of 60°C, with a luminous efficacy of 87 lm/W.

The product is designed without a lens and has a low profile design that maximises its optical incoupling by allowing minimal distance between a light guide or lens. This means more light enters the light guide, which is critical to making the implementation successful. It has dimensions of 3.75 x 3.75 mm² and produces a luminance of 70-100 Mcd/m², allowing for a smaller external lens and headlights which can be made much more compact.