Types Of Microscopes

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Types Of Microscopes
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Compound light microscope

• 2 or more lenses
• Light travels through objects
• Must be thin, semi transparent
• Up to 2000x magnification
• What we use in class (400x max)

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Eyepiece
Coarse Adjustment
Fine Adjustment
Arm
Low Power Objective
Arm
High Power Objective
Stage
Stage clips
Base
Fine Adjustment
Diaphragm
Mirror
Diaphragm
LIGHT SOURCE
Coarse Adjustment
Lamp
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Stereomicroscope

• Magnifies large items that light cannot pass
  through.
• Has an eyepiece lens for each eye
• Allows 3 dimensional view
• 10x to 60x magnification

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Scanning Electron Microscope (SEM)

• Views 3 dimensional bodies
• Cannot be viewed in color
• Cannot view live specimens
• Electrons bounce off specimen, then picked up by
  computer
• Up to 100 000x magnification

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Examples of SEM images
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Ragweed Pollen
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Ear Hairs
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Ear Hairs Up Close
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Red Blood Cells
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White Blood Cell
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Bacteria 1
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Cat Flea
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Cilia
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Respiratory Cell Cilia
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Salt Crystals
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Sand Grains
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Rainbow Trout Scales
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Shark Scales
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Yeast Budding
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Tapeworm
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Tapeworm Hooks
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Transmission Electron Microscope (TEM)

• Similar to SEM
• Electrons pass through specimen
• Not 3 dimensional

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Examples of TEM images
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Bacteria Viruses
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Bacteria 2
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Bacteria 3
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Plant Cell 1
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Plant Cell 2