Infrared platinum stack

  • 05-Jan-2010 10:06 EST
OSRAM Opto Platinum Stack DRAGON.jpg

Providing high optical output from a small surface area, OSRAM Opto Semiconductors’ infrared platinum stack DRAGON LEDs create a suitable high-radiance solution for automotive and industrial applications where space is limited. Its 1 mm² (0.001 in²) ThinFilm chip-in-stack technology enables it to generate an optical output of nearly 1 W from a driving current of 1 A, which is almost twice the output of the standard chips that have been used up to now. It has not one but two p-n junctions that have been grown or “stacked” one on top of the other. The viewing angle and radiant intensity can be varied with standard secondary optics. Preferred applications are those that require high radiance so that small optics can be used. Night vision systems, sensor-based electronic pedestrian protection systems, and precrash sensors in vehicles can be made much more compact because fewer infrared LEDs are needed to provide the same optical output.

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