SIMPLE, COMPOUND, SEM, TEM, DISSECTION Microscopes.
6
SIMPLE, COMPOUND, SEM, TEM, DISSECTION Microscopes
-
Upload
clifford-ross -
Category
Documents
-
view
218 -
download
0
Transcript of SIMPLE, COMPOUND, SEM, TEM, DISSECTION Microscopes.
SIMPLE, COMPOUND, SEM, TEM, DISSECTION
Microscopes
Light Microscopes (Mag < 2000X)
Simple Microscope-uses only one lens to magnifyCompound Microscope-uses 2 or more lenses to
contribute to the total magnification
Total Magnification = (Objective lens mag) x (occular lens magnification)
Dissection Microscope-Used more on the macroscopic level. Used to see structures larger than cells (organs, tissues, tendons, blood vessels).
Electron Microscopes (up to 10,000,000X)
Light does some weird stuff when looked at closely (reflection, refraction, distortion, resolution difficulty) so instead of throwing light at the
specimen, electrons are used.Scanning Electron Microscope= produces 3-d
like images.
Electron Microscopes (cont.)
Transmission Electron Microscope = produces cross-sectional images
How Microscopy and Cell Theory were Discovered
HookeLeewenhoeckSchleidenSchwann
