SPECTRAL REFLECTANCE MEASURING SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a spectral reflectance measuring system capable of: improving accuracy in spectral reflectance measurement even in the case of having an error factor such as variations in spectral transmittance or positional deviation; and contributing to cost reduction due to the relaxing of manufacturing accuracy.SOLUTION: A plurality of kinds of light having known spectral energy distributions are made to be incident to store spectral sensitivity characteristic data for each area on a sensor in a memory 30. Based on the stored spectral sensitivity characteristic data, a spectral transmittance measurement of each pixel is calculated by a pixel spectral characteristic calculation unit 34. Based on the calculated spectral transmittance, a spectral reflectance of an object is calculated by an object spectral reflectance calculation unit 36.