microscope Flashcards
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Part
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Name
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Function
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A
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B
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C
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D
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E
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F
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G
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H
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I
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J
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K
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L
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M
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Part
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Name
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Function
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A
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Ocular Lens/Eyepiece
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lens magnifies image ten times; allows viewing of specimen. Can be adjusted to fit your face.
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B
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Revolving Nosepiece
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holds scanning, low power, high power, oil immersion objective lenses and turns to change lens.
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C
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Objective Lenses
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4 lenses which magnify the specimen 4x, 10x, 40x, 100x
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D
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Stage
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supports the slide being viewed
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E
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Stage Clips
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holds the slide in place on the stage
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F
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Light Source
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provides light which illuminates the specimen on the slide so it can be seen
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G
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Light Adjustment
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Used to adjust amount of light. Start with light adjustment on high.
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H
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Arm
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supports the upper part of microscope
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I
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Coarse Focus
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moves the stage up and down for focusing; only used on scanning and low power
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J
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Fine Focus
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moves the stage up and down a small amount to make image sharp; only used on high power
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K
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Base
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supports microscope; microscope should be carried holding onto the arm and base
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L
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Slide Position Adjust Knobs
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Moves the slide around on the stage…back and forth and side to side.
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M
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Diaphragm
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regulates the amount of light from the light source
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Lens Name
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Lens Magnification
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Total Magnification
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Field of View Size
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4X
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10X
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40X
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100X
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Lens Name
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Lens Magnification
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Total Magnification
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Field of View Size
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Scanning power
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4X
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40
|
largest
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low power
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10X
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100
|
large
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high power
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40X
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400
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small
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oil immersion
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100X
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1,000
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smallest
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Magnification
The magnifying ability of an instrument
The ability to magnify something
Resolution
The degree of detail visible in an image
distinction between pixels on the image
higher magnification, lower the resolution
field of view
the circle of what can be seen under the microscope
higher the magnification=lower the resolution
