The system used spectrophotometric method can measure object optical character . and then , with cie standard observer spectral tristimulus value function the color property of the object can be calculated . finally , obtained upper precision 本系統(tǒng)使用分光光度法測出物體的光學特性,然后根據(jù)cie標準色度觀察者光譜三刺激值函數(shù)進行色度計算獲得了較高的精度。