Patent Document ID: 20090012721
Application ID: 11816244
Patent Status: 0

Claim One:
1. A fluorescence detecting device using an intensity-modulated laser beam, which irradiates an object to be measured with a laser beam to receive fluorescence generated by the object to be measured, and carries out signal processing of a fluorescence signal obtained when receiving the fluorescence, comprising: a laser light source section that outputs the laser beam with which the object to be measured is irradiated; a light receiving section that outputs the fluorescence signal of the fluorescence generated by the object to be measured which is irradiated with the laser beam; a light source control section that generates a modulation signal having a given frequency in order to time-modulate an intensity of the laser beam that is output from the laser light source section; and a processing section that calculates, by using the modulation signal, a fluorescence relaxation time of the fluorescence of the object to be measured based on the fluorescence signal that is output from the light receiving section by irradiating the object to be measured with the time-modulated laser beam.