vital signs optical sensor, vital signs measurement method, and computer program

摘要

The fpg sensor emits light at least three wavelengths (y1 to y3) and detects reflected light. The fpg sensor comprises a motion correction unit (130) for correcting artifacts of motion of the detected light signals by subtracting the output signal from the detected light at the second wavelength (y2) from an average of an output signal. light detected at the first and third wavelengths (y1, y3). the three wavelengths (y1 to y3) are arranged around 550 nm. the second wavelength (y2) is arranged at the same distance between the first and third wavelengths.