Patent ID: 8873045

Claim:
A spectrocolorimeter comprising: a light source configured to irradiate an object to be measured with colorimetry light; a spectral unit configured to spectrally separate reflected light from the object to be measured; a light detection unit having a plurality of pixels configured to receive dispersing light rays spectrally separated by said spectral unit, and to output signals according to intensities of the dispersing light rays; and a calculation unit configured to calculate wavelengths of the dispersing light rays respectively received by the plurality of pixels included in said light detection unit using a correspondence relationship between pixels and wavelengths of a plurality of extremal value points in a profile of dispersing light rays detected by said light detection unit upon execution of colorimetry of a reference object to be measured, wherein when said calculation unit calculates the wavelengths of the dispersing light rays respectively received by the plurality of pixels, said calculation unit adjusts a colorimetry condition for respective extremal value points so that signals to be output from pixels corresponding to the plurality of extremal value points have output levels which are not less than a reference and are not saturated.