Infrared LED
2 April 2014
Opto-Electronics
The Oslon Compact infrared light-emitting diode (IRED) from Osram Opto Semiconductors fills in the gap between the company’s high-power and low-power IREDs.
Its combination of small package size (1,6 x 1,2 x 0,8 mm) and high output make it suitable for such tasks as surveillance, digital image processing, 3D measurement, pattern recognition and gesture detection.
The SFH 4710 has been designed especially for industrial applications and gives a typical output of 270 mW from an operating current of 500 mA. It accommodates a small but powerful chip with an edge length of 750 μm and half the footprint of standard chips in the Oslon Black range.
The IRED has an emission angle of ±65° and does not need internal optics or reflectors; its light can however be successfully injected into narrow-angle external optics. With external optics it is ideal for illumination in surveillance applications and for machine vision tasks such as pattern recognition and 3D measurement because the wavelength of 850 nm is barely perceptible to the human eye but can be very easily detected by camera systems.
Without external optics the SFH 4710 covers the near-field range of a few metres and is therefore suitable for eye tracking and gesture detection.
For more information contact Ryan Hunt, Osram Opto Semiconductors, +27 (0)79 525 1779, [email protected], www.osram-os.com
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