PULSE WAVE DETECTOR, AND PULSE WAVE DETECTION SYSTEM

PROBLEM TO BE SOLVED: To solve such the problems that a large number of components are used and a lot of time is needed for processing each of information obtained from a plurality of light receiving elements, since the plurality of light receiving elements and light emitting elements are provided and they are arranged near the artery with a high probability in a pulse wave detector.SOLUTION: The pulse wave detector includes one light receiving element and the plurality of light emitting elements having prescribed positional relation with one another. Thus, since one of the light emitting elements is arranged near the artery with the high probability and detection accuracy does not decline no matter from which light emitting element the light is detected by the light receiving element, there is provided the pulse wave detector which is capable of accurately detecting pulse waves, has the small number of components, consumes little power, and processes the information in a short time.