Details:

• A light microscope uses focused light and lenses to magnify a specimen, usually a cell. A light microscope is much like a telescope, except that instead of the object being very large and far, it is very small and very close to the lens.
• In a modern microscope it consists of a light source, such as an electric lamp or a light-emitting diode, and a lens system forming the condenser.
• The condenser is placed below the stage and concentrates the light, providing bright, uniform illumination in the region of the object under observation.