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Osram Opto Semiconductors launched a new infrared LED with a narrower beam angle which allows the illumination unit to be designed without additional secondary optics.
This new product SFH 4718A has a beam angle of ± 25° and provides radiant intensity of 730 W/sr. At a current of 1 amp, the IRED offers an optical output of 0.8 watts (W). Their 850 nm wavelength is barely discernible by humans, but lies firmly within the sensitivity range of the camera sensors.
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