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