Research of Using Grating Spectrometer to Obtain Chromaticity of Object

The method of chromaticity characteristic of object is obtained by connection of theory of color optics and theory of spectrum reflection theory.Emission spectra of Xenon lamp and the reflection characteristic of the objective surface are obtained by the experimental measurement of grating spectrometer that based on their own structures.And then it is programmed to calculate the chromaticity coordinates of the Xenon lamp light source and the sample surface irradinated by the Xenon lamp.At the same time.The chromaticity value of surface of object can also be further calculated under different light source irradition by using formula for calculating the chromaticity value.The work also has a certain reference on the methods of measurement for chromaticity of transmission objects and fluorescent objects.