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-   -   Differences between light/optical and electron microscopes? (http://www.molecularstation.com/forum/confocal-microscopy-imaging-techniques/70595-differences-between-light-optical-electron-microscopes.html)

Deano 09-12-2009 05:18 PM

Differences between light/optical and electron microscopes?
 
Answer as many as you like about the following:
-radiation source
-lense type
-wavelength of radiation
Further q - what lens does an electron microscope use?

Sakura Haruno 09-12-2009 05:18 PM

Light microscope:
Radiation source - Visible light (sunlight / little electricity)
Lens type - use glass lenses ( unaffected by magnetic fields)
Medium through radiation travel - air

E. microscope:
Radiation source - Electron beam (require up to 100,000 V)
Lens type - Use magnetic lenses and affected by magnetic fields.
Medium through radiation travel - vacuum

sorry I don't know the wave lengths.

afreen 11-10-2010 12:52 PM

Re: Differences between light/optical and electron microscopes?
 
light micro scope can resolve image not more than 0.2 micro meter
electron microscope can resolve image as small as 0.2 nano meter


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