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Flashcards in Microscopes Deck (40)
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30

Fine adjustment focus knob

The smaller knob projecting out of the coarse adjustment knob. Makes very slight changes, used to bring the image of an object into sharp focus. Used on medium and high power objective lenses

31

Stage

The place where the slide is placed for viewing. There is a hole in the stage; the object to be viewed should be placed directly over the hole to allow light to shine through the object.

32

Stage clips and knobs

The metal clips holds the slide into place, and allow the slide to be moved easily to position or reposition an object

33

Condenser

The condenser focuses light

34

Iris diaphragm

This is located immediately under the stage. By moving this lever to the right or left, you can adjust the amt. of light that passes through the specimen and therefore the contrast

35

Light source

Comes from the base of the microscope, shines upward to illuminate an object

36

Reastat

Controls light. Little wheel. Needs to be turned away (all the way down) before putting the microscope back

37

Total magnification is figured out how?

Total mag.= ocular mag x object. mag

38

Pointer

The little needle that points to structures in the magnified image.

39

When viewing an object you should record what?

The total magnification