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15 Cards in this Set
- Front
- Back
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Stage
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Fixed platform with opening in center to allow for passage of light
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MMechanical Stage
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Can be moved vertically or horizontally
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Illumination
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At the base of microscope. May be an internal (light) or external light source (mirror).
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AAbbe Condenser
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Under the stage, contains 2 sets of lenses that collect and concentrate light up from light source
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IIris Diaphragm
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A shutter controlled by a lever, regulates amount of light entering the lens system
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Body Tube
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Above stage and attached to arm of microscope
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Ocular Lens
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Eyepiece lens. Upper end of the body tube.
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Nosepiece
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Movable lower portion of body tube containing the objective lens
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Objective lenses
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Different lenses with different levels of magnification
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Coarse-adjustment
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Broad focus
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Fine-adjustment knob
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Fine focusing knob
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Resolving Power
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(Resolution) Ability to discriminate between two points
Resolving Power = wavelength - 2(numerical aperture) |
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Numerical Aperture
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A function of diameter of the objective lens in relation to its focal length
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Refractive Index
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The bending of power of light passing through different medians
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Condenser
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Contains two lenses necessary to produce a max numerical aperture.
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