Patent ID: 8525989

Claim:
A spectroscopic measurement apparatus comprising: an integrating sphere in which a sample as a measurement object is located, and having an entrance aperture for inputting excitation light with which the sample is irradiated, and an exit aperture for outputting light to be measured from the sample; irradiation light supplying means supplying the excitation light as irradiation light supplied via the entrance aperture to the interior of the integrating sphere; a sample container holding the sample at a predetermined position in the interior of the integrating sphere; spectroscopic means dispersing the light to be measured output from the exit aperture of the integrating sphere and obtaining a wavelength spectrum; and data analyzing means performing data analysis of the wavelength spectrum obtained by the spectroscopic means; wherein the irradiation light supplying means is configured so as to be able to supply white light as the irradiation fiat in addition to the excitation light, so that the irradiation light supplying means can switch the irradiation light to the integrating sphere between the excitation light and the white light, and wherein the data analyzing means includes: correction data obtaining means obtaining correction data for correcting the wavelength spectrum by considering absorption of at least one of the excitation light and the light to be measured by the sample container; sample information analyzing means obtaining information of the sample by correcting the wavelength spectrum with the correction data and analyzing the corrected wavelength spectrum; and correction data calculating means calculating the correction data, showing a correction value at each wavelength for the wavelength spectrum, on the basis of a measurement result of a first reference measurement of performing a measurement by supplying the white light to the interior of the integrating sphere without the sample and without the sample container, and a measurement result of a first sample measurement of performing a measurement by supplying the white light to the interior of the integrating sphere without the sample and with the sample container.