PROBLEM TO BE SOLVED: To provide an optical sensor module that suppresses a variation in optical distance/characteristics of a light receiving element and a light emitting element, reduces an impact of noise attributable to a body motion, and improves stability.SOLUTION: An optical sensor module 1A includes a base plate 20, a light emitting element 12 disposed on the surface of the base plate 20, a light receiving element 14 disposed on the surface of the base plate 20, separated from the light emitting element 12, and a light guide layer arranged on the reverse face facing the surface of the base plate 20, is caused to come into contact with a body surface of a human or an animal, receives transmitted light which is the light emitted from the light emitting element 12 through the light guide layer and transmitting the body, and detects the strength of the transmitted light.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】受光素子・発光素子の光学的な距離・特性の変動を抑制し、体動に起因するノイズの影響を低減し、安定性を向上した光学センサモジュールを提供する。【解決手段】光学センサモジュール１Ａは、基板２０と、基板２０の表面上に配置された発光素子１２と、基板２０の表面上に、発光素子１２と離隔して配置された受光素子１４と、基板２０の表面に対向する裏面上に配置された導光層とを備え、人体や動物の体表面に接触させ、発光素子１２から導光層を介して放出された光が体内を透過した透過光を受光し、透過光の強度を検出する。【選択図】図１
