L3201 LED EPI-fluorescencece microscope is equipped excellent UIS optical system and adopted modularization function design idea, the transmitted and epi-fluorescent illuminating light source are adopted high power & brightness LED,this kind of illumination has a lot of excellence, such as power consumption lower, good radiating heat effect, using safely and comfortably, lower cost of using and maintenance and ect,. It is equipped with no magnification spherochromatic aberration infinity plan achromatic fluorescent objectives and wide field eyepieces, can obtain excellent optical quality and operation performance. It can be used as transmitted light micorscope. It is widly applied in the biological pharmacy, medicine checking and measure, diseaseprevent and etc.