IR LED for long-distance surveillance

13 November 2013 Opto-Electronics

For security surveillance over large distances, the new infrared Dragon Dome LED from Osram Opto Semiconductors has a focused beam which achieves a range of more than 100 metres. It has a compact design and does not need an external lens. With its wavelength of 850 nm, this LED is ideal as a light source for security surveillance tasks such as CCTV.

The Dragon Dome (SFH 4783) emits its light within a narrow angle of ±12°. From a current of 1 A it achieves a total radiated power of 430 mW and therefore a radiant intensity of 2,3 W/sr. At this radiant intensity the beam of light will have a usable range of more than 100 metres, depending on the sensitivity and field of view of the camera.

This high radiant intensity benefits all applications that need strong focused light to provide reliable illumination over large distances. These include outdoor CCTV surveillance systems at border crossings and/or airports. With a wavelength of 850 nm the emitted light is well suited to camera sensors but is barely perceptible to the human eye, meaning that surveillance can be very discreet.

For more information contact Ryan Hunt, Osram Opto Semiconductors, +27 (0)79 525 1779, [email protected], www.osram-os.com

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