OSRAM OPTO SEMICONDUCTORS SFH 7060 integrated optical sensor provides improved signal quality and low energy consumption, while measuring pulse rates and the oxygen saturation level of blood. Device contains five light emitting diodes with three different wavelengths and one high-sensitivity photodiode. Device consists of three green LEDs, one red LED, one infrared LED and one large-format photodiode, which is optically separated from the emitters by an opaque barrier. It works by shining light into the skin. Different amounts of this light are absorbed by blood and the surrounding tissue. The light that is not absorbed is reflected to the detector. Absorption measurements with different wavelengths are used to determine the pulse rate and the saturation level of oxygen in the blood. http://www.osram-os.com/pr-sfh7060
