PROBLEM TO BE SOLVED: To improve detection efficiency of fluorescence emitted from an object to be measured in a time-resolved fluorescence measuring device.SOLUTION: Excitation light is irradiated to an object 30 to be measured. Fluorescence detection means 24 detects fluorescence emitted from the object 30 to be measured. The fluorescence detection means 24 includes a detector group in which a plurality of detectors are arranged in a line in a predetermined direction. An optical element 23 is disposed in a light path until the fluorescence enters fluorescence detection means 24. The optical element 23 causes a traveling direction of fluorescence to change so that the fluorescence can be detected by different detectors among the plurality of detectors of the detector group as time advances, after the excitation light is irradiated to the object 30 to be measured. A PC 26 calculates a fluorescence lifetime based on a detection result of the fluorescence by the detector group.COPYRIGHT: (C)2012,JPO&INPIT【課題】時間分解蛍光測定装置において、測定対象物から発せられた蛍光の検出効率を向上させる。【解決手段】測定対象物30には、励起光が照射される。蛍光検出手段24は、測定対象物30から発せられた蛍光を検出する。蛍光検出手段24は、複数の検出器が所定方向に一列に配列された検出器群を有する。光学素子23は、蛍光が蛍光検出手段24に入射するまでの間の光路中に配置される。光学素子23は、励起光が測定対象物30に照射された後、時間経過と共に蛍光が検出器群の複数の検出器のうちの異なる検出器で検出されるように、蛍光の進行方向を変化させる。PC26は、検出器群での蛍光の検出結果に基づいて、蛍光寿命を算出する。【選択図】図1
