| 摘要 |
PROBLEM TO BE SOLVED: To provide a spectrophotometric colorimeter capable of measuring a standard color value at a reference temperature and a color difference between the reference color value and a measured color value even when the temperature at the time of the predetermined time is different from the reference temperature. SOLUTION: The on-line spectrophotometric colorimeter comprises a spectrometer part 1, a light projecting part 2, a signal processing part 3, a computation result display part 4, and a thermometer 5 for measuring the surface temperature of a measurement object 6, wherein measurement of the spectral reflectance factor of the measuring object 6 and color displays and color differences etc. by various color systems, are calculated and displayed. In the signal processing part 3, the spectral reflectance factor measured by the photometric part 1 is corrected by using the temperature measured by the radiation thermometer 5, thereby the spectral reflectance factor at the reference temperature is calculated and output, and at the same time it is used for calculating the color values and the color difference values to be measured thereafter. COPYRIGHT: (C)2004,JPO
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