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28 Cards in this Set
- Front
- Back
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first person who created non-reusable microscope (1600s)
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Anton von Leewonhoek
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focuses light rays that pass through the specimen to produce a magnigfied image
(staining) |
compound light microscope
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conatains magnifying lens. it has a magnifiacation of 10x
(eyepiece) |
Ocular
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it lays between the ocular and arm; allows light to pass to your eyes from objective lenses
(prism back ups) |
body tube
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support for body tube. it connects the body tube to the base
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arm
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where you put a slide to be viewed
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stage
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allows light to pass through the slide
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stage opening/aperture
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large knob that moves the stageor body tube upward or downward to help focus the image
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coarse adjustment knob
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small knob that brings the image into sharp focus
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fine adjustment knob
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bottom of the microscope; it supports the entire microscope
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base
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holds the slide in place
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stage clips
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holds the objective lense
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revolving nosepiece
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part that regulates the amount of light intensity
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diaphragm
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rotating disc with several size holes
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wheel
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has a lever with greater selection of holes
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iris
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has slots to recieve filters that can remove specific wavelengths of light
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condenser
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provides largest field of view and lowest magnification (4x)
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scanning power
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higher magnification (10x)
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low/medium power
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highest magnification(40x) smallest field of view
oil(100x) |
high power and oil emersion
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what you see when you look in the occular; low magnification has a larger view than high magnification
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field of view
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is calculated by multiplying magnification of the eyepiece and objective magnification
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total magnification
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where you get detail, if you go past it the image will be blurry
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limit of resolution
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how to clean a microscope
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wipe the lense with lens paper. sont reuse a piece of the lense paper
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how to carry a microscope
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one hand on the arm and one on the base; hold it upright
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how to store a microscope
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put it on the lowest possible onjective position; lowest stage; dust cover on; cord wrapped around the base
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how to place a slide on a microscope
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put the slide centered on the stage and clip it down
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what are the 8 steps to focus a microscope
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1. make sure the lenses are clean
2. put the side on and clip 3. put the scanning objective in place 4. focus the course adjustment knob 5. focus the fine adjustment knob 6. switch to low power and readjust 7. repeat with medium 8. when finished reverse the steps |
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how to prepare a wet mount (5 steps)
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1. clean slide
2. place a thin layer of the specimin in the center of the slide 3. use pipette to put a tiny drop of water in teh middle of slide 4. lower cover slip on to slide 5. remove exess water with paper towel |
