Closely it is the infrared the fluorescent substance is used spectrum device. Topic: It observes without the optical fiber and making the electronic circuit the suffering inspection body contact, information of suffering inspection internal, making use of light. Solution expedient: The fluorescent substance of small-sized light weight contact is obtained in the suffering inspection body, fluorescent strength is measured at the position where it is far.蛍光体を用いた近赤外分光装置である。課題:光ファイバや電子回路を被検体に接触させることなく、被検体内の情報を、光を用いて観測する。解決手段:小型軽量の蛍光体を被検体に接触せしめ、離れた位置で蛍光強度を計測する。