CRT Color Sensor and Development of CRT Color Analyzer

摘要

This paper discusses the basic requirement of CRT color sensor according to colorimetry principle and offers its design method and calculate program block diagram. The CRT color analyzer has been developed for measuring of CRT screen color with this CRT color sensor and 80C196 micro-controller. The CRT color analyzer consists of a detecting head that is put onto the CRT screen and a display unit that shows the result in LED numerical display with four modes. It can be used for measuring and inspecting basic color parameters of CRT screen: the chromaticity coordinates of white field(x ,y),the white balance error(jnd),relative color temperature (T,MPCD) and screen luminance (Y).