Publications by authors named "Matti T Kinnunen"
Objective: This paper describes the full development of a sensor for measuring optical heart rate (OHR) and blood oxygen saturation (SpO2).
Methods: A wearable sensor with a new type of skin compatible dispensed lens was designed and manufactured. All critical optical components, light emitting diodes (LEDs) and photodiode (PD) were close to skin and gave maximum light intensity due to minimal loss in the lens structure.