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- The Parts of a Microscope
- The top pieces of the microscope are called:- Ocular Lens (Eyepiece)- Body Tube- Revolving Nosepeice- Objective lenses- Arm
- The Parts of a Microscope
- The lower pieces of the microscope are called:- Stage- Stage Clips- Diaphram- Coarse Adjustment Knob- Fine Adjustment Knob- Light Sourse- Base
- The Functions of a Microscope
- Eyepiece: In modern microscopes, the eyepiece is held into place by a shoulder on the top of the microscope observation tube, which keeps it from falling into the tube. The placement of the eyepiece is such that its eye (upper) lens further magnifies the real image projected by the objective.Body tube: The body tube is a hollow tube through which light travels from the objective lenses to the ocular lens (Eyepiece). It contains a prism at the base of the tube that bends the light rays so they can enter the inclined tube.
- The Functions of a Microscope
- Revolving Nosepiece: The revolving nosepiece holds multiple lenses, allowing the user to turn it to achieve various levels of magnification. Though the exact level of magnification may vary with different models, most microscopes provide a low power lens with about 5x magnification and a high power lens with about 100x magnification.Objective Lenses: The objective lens, located closest to the object, relays a real image of the object to the eyepiece. This part of the microscope is needed to produce the base magnification. The eyepiece, located closest to the eye or sensor, projects and magnifies this real image and yields a virtual image of the object.
- The Functions of a Microscope
- Arm: The arm of the microscope supports the body tube. The arm is also used to help carry the microscope.Stage: Microscope stages are platforms where specimens are placed for observation with a microscope. They are often equipped with a mechanical device (Stage Clips) which holds the specimen slide in place, but allows the back-and-forth and side-to-side movement of the slide.
- The Functions of a Microscope
- Diaphragm: The microscope diaphragm, also known as the iris diaphragm, controls the amount and shape of the light that travels through the condenser lens and eventually passes through the specimen by expanding and contracting the diaphragm blades that resemble the iris of an eye.Coarse Adjustment Knob: The Coarse Adjustment Knob is a rapid control which allows for quick focusing by moving the objective lens or stage up and down. It is used for initial focusing.
- Fine Adjustment Knob: The Fine Adjustment Knob is a slow but precise control used to fine focus the image when viewing at the higher magnifications.Base: The base is the bottom of the microscope, which is used to support the microscope and carry it.
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