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Compound Light Microscope

Compound Light Microscope. Uses two lenses and has a light source Ocular lens usually magnifies x10 Can be used to view living cells Highest magnification of a compound light microscope is 2,000x. Electron Microscope. Beam of electrons produce an enlarged image of specimen

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Compound Light Microscope

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  1. Compound Light Microscope • Uses twolenses and has a light source • Ocular lens usually magnifies x10 • Can be used to view living cells • Highest magnification of a compound light microscope is 2,000x

  2. Electron Microscope • Beam of electrons produce an enlarged image of specimen • Highest magnification of an electron microscope is 200,000x • Cannot be used to view living cells

  3. Scanning Electron Microscope • Electron beam is focused on a specimen coated with a very thin layer of metal • Electrons that bounce off form an image on a fluorescent screen • Show 3-D images of cell surfaces • Black and white images only (artificial colors sometimes added)

  4. Transmission Electron Microscope • An electron beam is directed at a very thin slice of a specimen stained with metal ions • Electrons passing through the specimen strike a fluorescent screen, forming an image • The formed image can show the internal structure of a cell in fine detail • Black and white images only (artificial colors sometimes added)

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