一种手持式CRT白场测试仪的研制

Development of A Handful CRT White Field Test Instrument

本文介绍了一种新型手持式 CRT白场测试仪的工作原理和设计方法 ,该仪器可用于彩色显示器 (CRT)或彩色电视 3项基本颜色参数的测量 :白场色坐标误差、白平衡误差和白场不均匀性。可存贮 8个基准白场参数 ,用标准白光源校正后的 x、y色坐标误差为± 0 .0 0 2。以 16 0× 12 8点阵的 L CD提供人机交互界面 ,可用于 CRT生产线光色参数抽检 ,小型

This paper introduces the work principle and design method of a new type of handful CRT white field test instrument, it can measure three basic color parameters of CRT: the error of white field color coordination, the error of white balance and the offsetting of white field. It can store 8 sets of fiducial white field parameters, and the measurement error limit is ±0.002. A 160×128 dot-matrix LCD is used to provide a friendly interface. Thus it can be used to test the color parameters or adjust the white balance on the CRT product line, and measure or adjust the color parameters of outside TV-wall.