PROBLEM TO BE SOLVED: To provide a biological information detector and the like which can improve waterproof performance, assembly performance, and the like while suppressing degradation in signal quality of a detection signal.SOLUTION: A biological information detector includes: a detecting part 130 which has a light receiving part 140 for receiving light from a subject and a translucent member 30 which is provided at a case surface side that comes in contact with the subject of the biological information detector and transmits light incident to the light receiving part 140 from the subject. The translucent member 30 has on a first surface SF1 a projection part 40 which comes in contact with the subject when measuring biological information of the subject and presses it, and has a recessed part 32 at a position corresponding to the projection part 40 on a second surface SF2 on the reverse side of the first surface SF1.COPYRIGHT: (C)2014,JPO&INPIT【課題】検出信号の信号品位の劣化を抑制しながら防水性能や組み立て性等を向上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140を有する検出部130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、被検体から受光部140に入射される光を透過する透光部材30を含む。透光部材30は、第1の面SF1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を有し、第1の面SF1の裏側の第2の面SF2において凸部40に対応する位置に、凹部32を有する。【選択図】図5
