PROBLEM TO BE SOLVED: To provide a biological information measurement device that enables a waterproof property and a dustproof property thereof to be improved.SOLUTION: The biological information measurement device comprises a housing having an opening part in a contact surface in contact with a living body, and a sensor part arranged in the opening part in a planar view from a normal direction of the contact surface. The sensor part has a light emitting part irradiating the living body with light, a light receiving part receiving reflected light from the living body, and a sealing part sealing the light emitting part and the light receiving part. The sealing part has a side surface part in contact with an inner side surface of the opening part. One of the inner side surface and the side surface part is provided with a protruding part.SELECTED DRAWING: Figure 8COPYRIGHT: (C)2020,JPO&INPIT【課題】防水性及び防塵性を高めることができる生体情報測定装置を提供する。【解決手段】生体情報測定装置は、生体と接触する接触面に開口部を有するハウジングと、接触面の法線方向からの平面視において開口部に配置されるセンサー部と、を備え、センサー部は、生体に光を照射する発光部と、生体からの反射光を受光する受光部と、発光部及び受光部を封止する封止部と、を有し、封止部は、開口部の内側側面と接触する側面部を有し、内側側面及び側面部のうちの一方には、突出部が設けられている。【選択図】図８
