LIVING BODY INFORMATION DETECTION APPARATUS AND BLOOD-PRESSURE METER

摘要

A living body information detection circuit including a light-emitting element for irradiating a part of a living body with irradiating light. The living body information detection circuit further including a light-receiving element for receiving scattered light of the irradiating light scattered in the part of the living body to detect a pulse waveform. The living body information detection circuit also including a light shielding structure for limiting an angle of light entering the light-receiving element in front of the light-receiving element.