Microscopy - Microscopy Compound Light Microscope The...

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Microscopy Compound Light Microscope The compound light microscope uses two sets of lenses to magnify the object. Illumination is provided by a light source on the base of the microscope. The magnification typically ranges from approximately 40 X to 1,000 X. They can be used with objects that range in size from about 100 nm to 2 mm. Parts of the Light Microscope The stage is a platform that holds the slide containing the specimen to be viewed. A mechanical stage (see the photographs below) has a mechanism for moving the slide. A light microscope must have a light source . This is usually a light bulb located beneath the stage. An adjustable diaphragm located beneath the stage is used to regulate the amount of light that passes through. A condenser contains two sets of lenses that concentrate light. It is located directly underneath the stage. Light from the light source passes through the diaphragm and condenser before continuing up through the specimen to be viewed.
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Microscopy - Microscopy Compound Light Microscope The...

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