Osram is aiming two infra-red LEDs at smartwatch face recognition. SFH 4170S (850nm) and SFH 4180S (940nm) are the the smallest biometric products by the Munich firm. The specially-developed package, dubbed Oslon P1616, is 1.6 x 1.6 x 0.85mm. Despite this small size, power is 1150mW at 1A and a radiation intensity of 280mW/sr. The ...
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