Patent ID: 6839134

Claim:
A fluorescence and phosphorescence measuring device comprising: a light source; an optical system for selecting, taking out, and directing light with a wavelength necessary for measurement from light emitted from said light source; a detector of fluorescence or phosphorescence generated from a sample irradiated by said measurement light (selected, taken out, and directed by said optical system); an optical path shielding mechanism arranged to temporarily block a first optical path between said light source and said sample, and to temporarily block a second optical path between said sample and said detector; and a first concave mirror installed in said first optical path between said optical path shielding mechanism and said sample, and a second concave mirror installed in said second optical path between said sample and said optical path shielding mechanism, no lens or filter emitting fluorescence or phosphorescence by irradiation of exciting light from said light source being installed in said first optical path between said optical path shielding mechanism and said sample or in said second optical path between said sample and said optical path shielding mechanism.