| 摘要 |
A spectral colorimeter includes an integrating sphere light source for projecting a beam of illuminating light to a sample, a light intensity sensor for receiving light reflected from the sample, a spectral characteristic calculator for calculating a spectral characteristic of the sample based on light reception data. The calorimeter is provided with a positional displacement detector for detecting a positional displacement of an illuminated spot of the sample and a corrector for correcting a calculated spectral characteristic based on a detected positional displacement of the illuminated spot. The spectral characteristic of the sample can accurately be obtained irrespective of a distance variation.
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