Osram advances the future of automotive lighting with new laser diodes
01.29.2019 | Business & Financial Press
Sunnyvale, Calif. - Osram Opto Semiconductors, a world leader in the optoelectronics industry, is introducing its second-generation blue multi-mode laser diode, which double the range of previous LED solutions up to 600 meters. It also simplifies system design when used in the auxiliary high beam lights of vehicles.
Driving at dusk or night puts great strain on drivers’ eyes and reduces their ability to focus. Used as a light source for auxiliary high beams, Osram’s PLPT9 450D_E A01 laser makes driving at night safer by illuminating the roads farther than conventional high beams.
“The new PLPT9 450D_E A01 laser diode is the perfect example of our commitment to bringing smaller, better and brighter lighting components to the automotive industry,” said Rajeev Thakur, regional marketing manager at Osram Opto Semiconductors. “This powerful laser is remarkably compact, making it an impressive advancement in automotive lighting.”
In terms of brightness, laser diodes have an advantage over LEDs. At a typical operating current of 2.2 A, the blue PLPT9 450D_E A01 laser reaches an optical output of 3.5 W and emits blue light at a wavelength of 447 nm. With the help of appropriate optics, the laser light is focused on a point only a few micrometers in diameter. A special phosphor converter transforms the blue light into the white light that is required for front lighting applications. The luminance achieved is three times higher than that of an LED light source. In comparison, the laser produces 600 cd/mm², while LEDs deliver around 200 cd/mm².
The PLPT9 450D_E A01 laser diode is qualified for use in cars and approved for an operating temperature range of -40°C to 120°C. Compared to the first generation with three pins, the second-generation TO90 package contains only two pins, which allows for much easier connection and heat dissipation. Thanks to the laser’s compact dimensions of only 9 mm in diameter and a height of < 4.5 mm (without contact pins), headlights can be much smaller in the future. This opens up several new design possibilities and performance values for applications in car headlights.
The PLPT9 450D_E A01 laser adds to the extensive automotive portfolio available from Osram Opto Semiconductors. Depending on the target application, developers can decide whether an LED or laser solution is best.
With the new PLPT9 450D_E A01 laser diode from Osram Opto Semiconductors, car headlights can be designed even smaller than before, while still offering the same high light output.
OSRAM, based in Munich, is a leading global high-tech company with a history dating back more than 110 years. Primarily focused on semiconductor-based technologies, our products are used in highly diverse applications ranging from virtual reality to autonomous driving and from smartphones to smart and connected lighting solutions in buildings and cities. OSRAM uses the endless possibilities of light to improve the quality of life for individuals and communities. OSRAM’s innovations enable people all over the world not only to see better, but also to communicate, travel, work and live better. OSRAM has approximately 27,400 employees worldwide as of end of fiscal 2018 (September 30) and generated revenue of more than €4.1 billion. The company is listed on the stock exchanges in Frankfurt and Munich (ISIN: DE000LED4000; WKN: LED 400; trading symbol: OSR). Further information can be found at www.osram.com.