PROBLEM TO BE SOLVED: To provide a component measuring device having a high degree of freedom in assembly adjustment work of various kinds of optical parts, and facilitating miniaturization.SOLUTION: The component measuring device irradiates an inner tissue of a measurement target with a laser beam through a confocal optical system, and measures the components of the measurement target based on data output from a light receiving element detecting the reflected light reflected by the inner tissue of the measurement target through the confocal optical system. At least a part of an optical path of the device is constituted by an optical fiber.COPYRIGHT: (C)2011,JPO&INPIT【課題】各種光学部品の組立調整作業時の自由度が高く、小型化が容易な成分測定装置を実現すること。【解決手段】共焦点光学系を介してレーザー光を測定対象の内部組織に照射し、前記測定対象の内部組織により反射された反射光を前記共焦点光学系を介して検出する受光素子から出力されるデータに基づき前記測定対象の成分の測定を行うように構成された成分測定装置において、前記装置の光路の少なくとも一部が光ファイバで構成されたことを特徴とするもの。【選択図】図1
