These knobs increase or decrease the level of detail seen when looking at the slide or specimen through the eyepiece of the compound microscope. Coarse and fine adjustment controls: Adjusts the focus of the microscope.This piece of the compound microscope sits below the stage & typically acts as a structural support that connects the stage to arm or frame of the microscope. Abbe Condenser: This lens condenses the light from the base illumination and focuses it onto the stage.Aperture - Disc or Iris Diaphragm: Circular opening in the stage where the illumination from the base of the compound microscope reaches the platform of the stage.Stage clips or mechanical stage: Clips on the stage that hold the slide in place on the mechanical stage.The height of the mechanical stage is adjustable on most compound microscopes. Stage or Platform: The platform upon which the specimen or slide are placed.Most slides & slide covers are thin glass rectangles. Specimen or slide: The object used to hold the specimen in place along with slide covers for viewing.So, a compound microscope with a 10x eyepiece magnification looking through the 40x objective lens has a total magnification of 400x (10 x 40). The total magnification of a compound microscope is calculated by multiplying the objective lens magnification by the eyepiece magnification level. 4x, 10x, 40x, and 100x are the most common magnifying powers used for the objectives.
Objective lenses: There are usually 3-5 optical lens objectives on a compound microscope each with different magnification levels.Base: Bottom base of the microscope that houses the illumination & supports the compound microscope.This part rotates to change which objective lens is active. Nosepiece: Holds the objective lenses & attaches them to the microscope head.Arm: Supports the microscope head and attaches it to the base.Monocular or Binocular Head: Structural support that holds & connects the eyepieces to the objective lenses.Eyepieces typically have a magnification between 5x & 30x. Eyepiece (ocular lens) with or without Pointer: The part that is looked through at the top of the compound microscope.Common compound microscope parts include:Ĭompound Microscope Definitions for Labels The individual parts of a compound microscope can vary heavily depending on the configuration & applications that the scope is being used for. Compound microscope serves its own unique function, with each being important to the function of the scope as a whole.
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