PROBLEM TO BE SOLVED: To provide a pulse wave measuring module capable of efficiently making incident light of a desired wavelength band, with less noise.SOLUTION: A biological information measuring device 400 functioning as a pulse wave measuring module comprises a light emitting unit 150 for emitting light to a subject and a light receiving unit 140 for receiving reflected light of the subject. The light receiving unit 140 includes a light detecting unit (light receiving element 142) for detecting the reflected light and an optical filter 143 mounted on the light detecting unit (light receiving element 142) and formed by a plurality of layers. A layer farthest from the light detecting unit (light receiving element 142) of the plurality of layers of the optical filter 143 is made from silicon oxide.SELECTED DRAWING: Figure 5COPYRIGHT: (C)2017,JPO&INPIT【課題】ノイズが少なく、所望の波長帯域の光を効率的に入射させる脈波測定モジュールを提供すること。【解決手段】脈波測定モジュールとしての生体情報測定装置400は、被検体に対して光を射出する発光部150と、前記被検体からの反射光を受光する受光部140と、を備え、受光部140は、前記反射光を検出する光検出部(受光素子142)と、光検出部(受光素子142)上に配置され、複数の層によって構成された光学フィルター143と、を有し、光学フィルター143の前記複数の層のうち、光検出部(受光素子142)からもっとも離れた層は、酸化ケイ素からなる。【選択図】図5
