在屏幕上涂抹荧光粉涂层时，不同种类的荧光粉可能相互重叠或覆盖。这叫做颜色混合。混色是影响彩色显像管质量的主要因素之一。本文介绍了我国最早的彩色显像管厂的基本情况。提出了一种利用混色自动检测仪解决混色问题的设计方案。归纳出四种颜色混合。为了检测这种颜色混合物，建议必须使用三个检测器。最后给出了由混色自动检测仪组成的几个部件的主要技术指标。

WHEN APPLYING A FLORESCENT POWDER COAT ON SCREEN, THE DIFFERENT KINDS OF FLORESCENT POWDER MAY OVERLAP OR COVER EACH OTHER. THIS IS CALLED COLOR MIXTURE. COLOR MIXTURE IS ONE OF THE MAIN FACTORS INFLUENCING THE QUALITY OF A COLOR PICTURE TUBE. IN THIS PAPER, THE BASIC SITUATION IN THE EARLIEST COLOR PICTURE TUBE PLANT IN P.R. CHINA ARE INTRODUCED. A DESIGN PROGRAM SOLVING THE COLOR MIXTURE PROBLEM BY USING A COLOR MIXTURE AUTOMATIC DETECTOR IS PROPOSED. THE FOUR KINDS OF COLOR MIXTURE ARE INDUCED. TO DETECT THIS COLOR MIXTURE, IT IS SUGGESTED THAT THREE DETECTORS MUST BE USED. FINALLY, THE MAIN TECHNICAL INDEXES OF SEVERAL COMPONENTS COMPOSED OF COLOR MIXTURE AUTOMATIC DETECTOR ARE GIVEN.