PROBLEM TO BE SOLVED: To preferably suppress the deterioration of a detection sensitivity due to a contamination, etc., in a biological sensor.SOLUTION: A biological sensor includes: a light emission part 120 and a light reception part 130 for acquiring biological information through the use of light a sensor holding part 100 for holding the light emission part 120 and the light reception part 130 a contact fixing part 200 for fixing the positions of the light emission part 120 and the light reception part 130 with respect to an organism by engagement with the sensor holding part 100 and first cleaning parts 230, second cleaning parts 240 for cleaning sensor parts when the sensor holding part 100 is engaged with the contact fixing part 200.COPYRIGHT: (C)2016,JPO&INPIT【課題】生体センサの汚染等に起因する検出感度の低下を好適に抑制する。【解決手段】生体センサは、光を利用して生体の情報を取得する発光部120、受光部130と、発光部120、受光部130を保持するセンサ保持部100と、センサ保持部100と係合することで発光部120、受光部130の生体に対する位置を固定する接触固定部200と、センサ保持部100と接触固定部200とが係合する際に、センサ部を清掃する第1清掃部230,第2清掃部240とを備える。【選択図】図1
