Opto-Electronics


New generation of LEDs for greater driving safety

30 September 2020 Opto-Electronics

In a few years LEDs will be the predominant light source in car headlights. Their compactness and energy efficiency in particular are major advantages over conventional technologies. LEDs also make it easy to achieve the brightness values required by today’s manufacturers. Osram Opto Semiconductors is constantly working to further optimise high-quality LED solutions for the automotive sector. With significant leaps in performance in the Oslon Black Flat and Oslon Compact product families, the company shows where developments are headed in the coming years and what other benefits headlight manufacturers can expect. The products are designed for use in high and low beam solutions.

In recent years, technological advances have contributed to the increasing popularity of LED-based headlamp solutions. The advantages of light-emitting diodes are obvious. Thanks to their compact dimensions, they allow enormous freedom in design and achieve outstanding brightness values. Now LED manufacturers are looking to improve the already very high level of quality in terms of brightness, energy efficiency and thermal performance.

Osram Opto Semiconductors is launching a new generation of 1 to 4-chip versions in the Oslon Compact PL product family. Like their predecessors, the ceramic components have an electrically insulated pad that makes it much easier to dissipate heat from the package. As a result, a higher current is possible, which allows the 1-chip version to achieve an outstanding brightness value of 395 lumens at 1 A with a chip area of 1 mm2. Thanks to the very small dimensions of 1,9 mm x 1,5 mm x 0,73 mm, the product is ideal for Adaptive Driving Beam (ADB) systems and in extremely space-saving system designs.

In addition, the Oslon Black Flat S family expands to include a 1- and a 2-chip version. The special lead frame-based components feature highest contrast values (>1:200) and very low thermal resistance – which allows for higher currents. The 1-chip variant reaches 395 lm at 1 A. The square lighting surface of the UX:3 chip makes optical design particularly easy for headlight manufacturers. The different technology concepts of the Oslon Black Flat S and Oslon Compact PL enable customers to choose the best possible combination of LED and PCB for their systems. Due to the product family’s outstanding efficiency values of up to 130 lm/W at 1 A, headlights with smaller or even without heatsinks are conceivable in the future, leading to a potential reduction in system costs.

“LEDs such as the Oslon Compact PL and the Oslon Black Flat S will lead to an increasingly high penetration rate in vehicles, including small and mid-sized cars,” explains Florian Fink, marketing manager of Automotive Exterior at Osram Opto Semiconductors. “We always work in close cooperation with our customers to constantly improve our established product families and to push the limits of achievable brightness values even further in future”.


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