PROBLEM TO BE SOLVED: To provide a biological information detector and the like which can suppress degradation in quality of a detection signal and the like caused by a change of a contact state around a projection part or the like.SOLUTION: A biological information detector includes: a detecting part that has a light receiving part for receiving light from a subject a translucent member 30 which is provided at a case surface side that comes in contact with the subject of the biological information detector, transmits light from the subject, and has a projection part 40 that comes in contact with the subject and presses it when measuring biological information of the subject and a pressure suppressing part 60 which is provided so as to encircle the projection part 40 on the case surface and suppresses the pressure the projection part gives to the subject. Groove parts 42 are provided between the projection part 40 of the translucent member 30 and the pressure suppressing part 60.COPYRIGHT: (C)2014,JPO&INPIT【課題】凸部の周囲での接触状態の変化等に起因する検出信号の信号品位の劣化等を抑制できる生体情報検出装置等の提供。【解決手段】生体情報検出装置は、被検体からの光を受光する受光部を有する検出部と、生体情報検出装置の被検体に接触する筺体面側に設けられ、被検体からの光を透過すると共に、被検体の生体情報の測定時に被検体に接触して押圧を与える凸部40を有する透光部材40と、筺体面において凸部40を囲むように設けられ、凸部が被検体に与える押圧を抑制する押圧抑制部60を含み、透光部材30の凸部40と押圧抑制部60との間に溝部42が設けられる。【選択図】図10
