| 摘要 |
PROBLEM TO BE SOLVED: To provide a method capable of appropriately and easily obtaining the color of a fluorescent substance. SOLUTION: The method is characterized in being provided with a measurement process S10 for obtaining three-dimensional light intensity spectral data of a reference body and a sample by sequentially scanning light source lighting beam at a specified interval of wavelength using a lighting side spectroscope of a spectrophotometer, irradiating the reference body or the sample with each beam of selected wavelength, and scanning a desired region of wavelength for each selected wavelength selected by lighting side spectroscope using a detecting side spectroscope; and a calculation condition setting process S12 for specifying relative spectral distribution of relative intensity of lighting beam for evaluating the color. The data on the sample obtained in the process S10 are superposed (S16), according to the distribution of the relative intensity in the process S12, luminous intensity spectral data on the reference body and the sample are obtained (S18), under a specified lighting beam specified in the process S12, and luminous reflectivity spectral data of the sample with taking the reference body as a reference are obtained (S20), by dividing the data of the sample by the data of the reference body. The method is also provided with a calculation process S22 for obtaining psychophysical color specification for expressing the color of the fluorescent substance by scattered light and fluorescence of the sample under the specified lighting beam specified in the process S12 from the data obtained in the process S20.
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