In order to solve these problems, high brightness light-emitting diode (LED) is used to replace fluorescent lamp as lights of color sorters.

• 针对这些问题,采用稳定性与方向性更好的高亮度发光二极管(LED)代替日光灯管作为色选机光源,并对不同颜色的LED光源进行了比较。