Osram Opto Semiconductors is unveiling an LED prototype in surface mount technology (SMT) with a brightness of up to 2000 lumen (lm) at ISAL 2015 – the Oslon Black Flat S. Experts achieved this high output by combining five chips from the latest UX:3 generation with an improved SMT package. A single LED is therefore sufficient as the light source for combined low-beam and high-beam systems. The excellent thermal connection with the package allows for passive cooling, which reduces system costs.Improved heat distribution – essential in view of the high currents involved – provides the basis for the high brightness. This brightness comes from five high-current chips based on latest-generation UX:3 technology, together with an improved package.
The thermal connection has been greatly improved by larger contact pads, which means that the headlights can benefit from passive cooling. This in turn reduces system costs considerably and makes the LED solution a viable alternative for vehicles that are now equipped with HID lamps. The SMT component has a footprint of 3.75 mm x 7.9 mm, which is only slightly larger than that of the previous 5-chip version. The Oslon Black Flat S is consequently a viable alternative to HID (High Intensity Discharge) lamps and is scheduled to be added to the Osram automotive portfolio at the end of 2016.
