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A microscope is an optical instrument made up of a combination of a lens or several lenses, which is a sign of human entry into the Atomic age. Mainly used to amplify tiny objects into the human eye can see the instrument. Microscopes are optical microscopes and electron microscopes: optical microscopes were pioneered by the Jansen father and son of the Netherlands in 1590. Now the optical microscope can amplify the object 1600 times times, distinguish the minimum limit up to 1/2 of the wavelength, the length of the domestic microscope mechanical cylinder is generally 160 mm, in which the microscope development, microbiology has a great contribution to the human column Levenhoek, Dutch.