What kind of equipment does a microscope belong to?

Microscope is an optical instrument composed of a lens or a combination of several lenses, is a symbol of mankind into the atomic age. Mainly used to amplify the tiny objects become human eyes can see the instrument. Microscope is divided into optical microscope and electron microscope: optical microscope is in 1590 by the Dutch Janssen father and son of the first. Now the optical microscope can magnify the object 1600 times, the resolution of the smallest limit of 0.1 microns, the length of the domestic microscope mechanical cylinder is generally 160mm.