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The infrared Platinum Dragon from Osram Opto Semiconductors provides a high radiance from a small surface.

With its 1mm thin-film chip in stack technology, it generates an optical output of almost 1W from a driving current of 1A.

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.

This is important, for example, in pedestrian protection systems and night-vision systems in vehicles.

The increased output of the Platinum Dragon is based on a thin-film chip.

It has two p-n junctions that have been grown or stacked one on top of the other.

This stack technology leads to almost twice the optical output power compared to conventional IR thin-film chips.

The forward voltage of 2.9V at 1A enables standard LED drivers to be used.

The IR LED emits at a wavelength of 850nm, providing a compromise between maximum spectral sensitivity for CCD and CMOS cameras, and suppressed visibility for the human eye.

With its high optical output from a small surface area, the infrared Platinum Dragon is suitable for lighting solutions where space is an important factor.

Night-vision systems in vehicles, pedestrian protection systems and pre-crash sensors can also be made more compact because fewer IR LEDs are needed to provide the same optical output.

In industrial applications the high-power IR LEDs can be used in illumination units for CCTV cameras or in systems for automatic number plate recognition (ANPR).

3D camera technology is another possible application.

For this, high modulation frequencies of the light source (typically 20 to 50MHz) are required, which can be achieved with the infrared Dragon.

Osram Opto Semiconductors

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