parts of a compound light microscope. definition of a microscope an instrument that magnifies very...
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Parts of a Compound Light Microscope
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Definition of a microscope
An instrument that magnifies very tiny things in order to make them appear larger
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ArmUsed to support the
microscope when it is carried
BaseThe bottom part that supports the whole
microscope
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Body tube
Cylinder that separates the eyepiece from the nosepiece – light passes through it so you can see the specimen
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Coarse adjustment knob
The bigger knob that moves the stage up and down – you turn this knob first to focus your specimen
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Fine adjustment knob
The smaller knob that is used to sharpen the image of your specimen – turn this knob second after using the coarse adjustment knob
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diaphragmThe numbered dial found under the stage that regulates the amount of light that goes through the stage to the specimen
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eyepiece
Where you put your eye to see the specimen – it contains the ocular lens
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Light source
Turns on to send light through the diaphragm and through the specimen
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Objective lenses
magnifies the specimen
Low power is 4X Medium power is 10XHigh power is 40X
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nosepiece
Holds the three objective lenses – it rotates so you can change the magnification from low to medium to high power
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stage
The black square that supports the slide being viewed – the hole in the middle lets
the light through
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Stage clipsTwo silver clips attached to the stage that hold
the slide in place
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Field of view
The circle of light you see when you look in the eyepiece – this is where you see your specimen
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pointer
A black line you can see in the field of view which helps to point out specific parts of your specimen
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sliderectangular glass piece where you put your specimen so then it can be viewed under the microscope
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coverslip
The plastic square piece you put on the top of your specimen