08.13.15
Osram Opto Semiconductors is optimizing its portfolio for the optical measurement of pulse rates and blood oxygen levels. The new SFH 7060 sensor from Osram Opto Semiconductors is designed to measure pulse rates and the oxygen saturation level of blood. It offers excellent signal quality and low energy consumption.
The main applications for this component include mobile devices such as smart watches and fitness armbands for continuously monitoring fitness levels. The integrated optical sensor contains five light emitting diodes (LEDs) with three different wavelengths and one high-sensitivity photodiode.
SFH 7060 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 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.
Green light is best for measuring the pulse at the wrist. SFH 7060 is equipped with three green LEDs with a wavelength of 530 nanometers (nm) based on the latest high-efficiency UX:3 chip technology from Osram Opto Semiconductors.
Oxygen saturation in the blood is calculated from the different absorption rates of red (660 nm) and infrared (940 nm) light. The quality of the measurements depends to a large extent on the achievable signal-to-noise ratio and on the linearity of the photodetector. The integrated photodiode with its active surface of 1.3 mm x 1.3 mm meets these requirements perfectly.
“The market for fitness tracking with the aid of wearables is growing at a rapid pace, and some of the requirements that the components have to meet are also changing fast,” said Dr. Jörg Heerlein, senior marketing manager at Osram Opto Semiconductors.
The main applications for this component include mobile devices such as smart watches and fitness armbands for continuously monitoring fitness levels. The integrated optical sensor contains five light emitting diodes (LEDs) with three different wavelengths and one high-sensitivity photodiode.
SFH 7060 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 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.
Green light is best for measuring the pulse at the wrist. SFH 7060 is equipped with three green LEDs with a wavelength of 530 nanometers (nm) based on the latest high-efficiency UX:3 chip technology from Osram Opto Semiconductors.
Oxygen saturation in the blood is calculated from the different absorption rates of red (660 nm) and infrared (940 nm) light. The quality of the measurements depends to a large extent on the achievable signal-to-noise ratio and on the linearity of the photodetector. The integrated photodiode with its active surface of 1.3 mm x 1.3 mm meets these requirements perfectly.
“The market for fitness tracking with the aid of wearables is growing at a rapid pace, and some of the requirements that the components have to meet are also changing fast,” said Dr. Jörg Heerlein, senior marketing manager at Osram Opto Semiconductors.