LY4001 Inverted & Reflected Fluorescence Microscopes is composed with inverted microscope and reflected fluorescence microscope, equipped with long working distances plan achromatic objectives and wide field eyepieces, you can use long working distance phase contrast objectives and special long working distance condenser with phase contrast unit when inverted observation, and change the fluorescence excitation system freely. It's mainly applied to observe the living cell and tissue, liquid and deposits etc, also to observe transparent living without staining and fluorescence slice up, it is the ideal instrument for researching in biology, cells cytology, oncology, genetics, immunology etc.