三色板的制作是在圆形硬纸板上涂上红、绿、蓝三种颜色,而后使之旋转,由于人的视觉效应,使人产生复合色彩的感觉.传统的方法是把三色板固定在陀螺上,也有的制成拉线盘使之反复旋转的,但都有许多不方便之处,一是操作时容易失误,二是观察角度不好,不利于演示教学,三是单色比例固定无法变换. The production of three-color plates is to coat three colors of red, green and blue on circular cardboard, and then to rotate them. Due to the visual effects of people, people can feel complex colors. The traditional method is to use three-color plates. Fixed on the gyro, and some made of pull disk to make it rotate repeatedly, but there are many inconvenient, first, easy to mistake when operating, and second, the observation angle is not good, is not conducive to demonstration teaching, the third is the proportion of monochrome Fixed can not be transformed.