The color management field applied to plastic, printing, paint ink, textile, printing and dyeing garment, etc. According to the LAB, LCH principle of the CIE color space, the color difference ΔE and ΔLab values ​​of the sample and the test sample were measured.Suitable for intra, external color evaluation and data control. The split color difference is also called a spectrophotometer. It is a reflected spectrum of the object surface by measuring the relative spectral power distribution of the object, and then multiplied by the three-value weight of the CIE spectrum, and the integral surface color is obtained.Other parameters such as value, color coordinates, color differences., Manufacturer: MERHOVO