parts of microscope
PRECATIONS IN USING MICROSCOPE
➤ It must always be carried with both hands. With on hand holding the limb while the other is placed under the base to provide support.
➤ The lenses must be cleaned by wiping them with a special soft lens tissue or tissue paper moistened with ethanol.
➤ The stage of the microscope must be kept clean and dry.
➤ Avoid wetting the lens, the object on the slide should always be covered with a cover slide (a very thin piece of glass).
➤ To avoid breaking the slide, the low power objective must always be used first to observe, and always moved upwards when focusing. High power can then be used if necessary.
➤ Before removing the slide from the stage, it is better to change to the low power objective to avoid breaking the slide It must be placed on a desk or table gently and carefully
➤ Always cover it when not in use, and keep your work area tidy and clean.
Eyepiece: This is the part you look through, often called the ocular lens. It magnifies the image from the objective lens.
Objective Lens: These are the primary lenses that magnify the specimen. Microscopes typically have multiple objective lenses with different magnification levels.
Stage: The stage is where you place the specimen for examination. It often has slide holders or clips to secure the specimen in place.
Coarse and Fine Focus knobs: These knobs allow you to adjust the focus of the microscope. The coarse focus knob is used for initial rough focusing, while the fine focus knob is for precise focusing.
Illumination Source: Microscopes may have built-in light sources, such as LED bulbs or mirrors, to illuminate the specimen from below.
Condenser: The condenser focuses and directs light onto the specimen. It often has an aperture diaphragm to control the amount of light.
Diaphragm/Iris: This controls the amount of light entering the condenser and, subsequently, the specimen. Adjusting it can enhance contrast and clarity.
Arm: The arm supports the upper parts of the microscope and allows you to carry and move it.
Base: The base provides stability and support for the entire microscope.
Nosepiece: The nosepiece holds the objective lenses and can be rotated to select different magnifications.
Mechanical Stage Controls: Some microscopes have mechanical stage controls, which enable you to move the slide horizontally or vertically with precision.
Rack and Pinion: These mechanisms are often used for adjusting the position of the stage or the height of the condenser.
These are the fundamental parts of a microscope, though there can be variations and additional features depending on the type and complexity of the microscope.
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