Carl Zeiss

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Zeiss is a German Manufactuer of Electron Microscopes, much like Siemens it was involved in the invention of the Electron Microsocpe. Originally its development focused on the creation of Electrostatic microscopes, but this approch was later abbandoned in favor of the Electromagnetic lens.

Only 2 models using exclusivly Electrostic Lenses are currently known to have existed, this is the experimental EM7, and the production EM8 microscope.

The EM9 marked the first all Electromagnetic Electron Microscope constructed by Carl Zeiss.

Models

It should be noted that this list is far from complete, and many models are yet missing within!

Transmission Electron Microscops
Model Year Accelerating Voltage Cathode Type Nr. of Condensor Lenses Nr. of Imaging Lenses Projective Resolution Successor
EM7 EM8
EM8 Tungsten Hairpin 1 Electrostatic 3 Electrostatic Imersion and EinzelLense EM9
EM9 60 KV Tungsten Hairpin 1 Electromagnetic 3 Electromagnetic Single Polpiece 70 Å [1] [[EM10}]
EM10 20, 40, 60, 80, 100 KV 2 Electromagnetic 3 Electromagnetic Single Polpiece < 30 Å [2] EM900
EM109 50, 80 KV Tungsten Hairpin 2 Electromagnetic 4 Electromagnetic Single Polpiece 50 Å [3]
EM900 Tungsten Hairpin EM902
EM902 Tungsten Hairpin EM912
EM906 Tungsten Hairpin Single Polpiece
EM910 Tungsten Hairpin
EM912 Tungsten Hairpin
  1. Das Elektronenmikroskop TEM+REM, Dr. Rainer Horst Lang, Dr. Jochen Blödorn, 1981, page 131
  2. Das Elektronenmikroskop TEM+REM, Dr. Rainer Horst Lang, Dr. Jochen Blödorn, 1981, page 132
  3. Das Elektronenmikroskop TEM+REM, Dr. Rainer Horst Lang, Dr. Jochen Blödorn, 1981, page 133