Eye Piece ocular

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Eye Piece (ocular)
Coarse Focus
Body Tube
Fine Focus
Revolving Nose Piece
Arm
Low Power Objective
Stage Clips
High Power Objective
Stage
Pivot Point
Diaphragm
Base
Mirror
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1) Eye Piece (ocular)

• the lens that you look through

2) Body Tube

• the tube that supports the eyepiece

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3) Revolving Nosepiece-
the rotating device that holds and changes the
objectives (lenses).
Revolving
Aperature-
Opening in the stabe to allow light from mirror
or light to pass
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4) Low Power Objective

• magnification lens with the lowest power

5) High Power Objective

• magnification lens with the highest power

6) Stage Clips

• clips that keep the slide or specimen from moving
• on the stage

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7) Stage
holds the specimen
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8) Diaphragm-
controls the amount of light entering through the
aperature to the objectivefrom the bottom
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9) Pivot Point-
Pivot Point
part that allows you to tip the ocular toward you
Mirror
Base
10) Base-
supports the microscope
11) Mirror
reflects (bends) the light upward onto the slide
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12) Fine Focus Adjustment
moves the body tube in small increments
13) Coarse Focus Adjustment-
moves the body tube in large increments
14) Arm
attaches the eyepiece and the body tube to the
base
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Magnification
A how to guide...
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Calculate Total Magnification
Total Magnification
ocular power x objective lens power using
Ocular power is generally 10X, meaning it has a
magnification or power of 10X
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MULTIPLY
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Magnification
Elodea 400x
Elodea 100x
Elodea 40 x
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The end
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