The research task achieve on - line measurement of led ' s wavelength and light intensity and also including automatic separation of led according to user ' s request in order to improve the quality of led 该项目主要是按用户要求，根据led单管的发光亮度和波长对led进行分选，从而提高led单管亮度和波长的一致性，进而提高led产品的质量和档次。
