Pulse rate, blood pressure and blood sugar levels are some of the few things that almost every physician would want to know if the health of a middle- ...

The theory behind a pulse oximeter relies on the fact that hemoglobin absorbs red and infrared light differently based on its oxygenation levels.

Osram has packaged all the optoelectronics necessary for measuring pulse rate and blood oxygen level in a 7.2 x 2.5 x 0.9mm envelope: one photo-diode, three green LEDs, one red LED and one infra-red ...