Ernst Ruska was, for all intents and purposes the inventor of the Electron Microscope. He designed and built many such machines over his long life, starting in the university Berlin, and later working for Siemens where he created the famous Elmiskop Series.
He invented the Transmission electron microscope together with his friend Bodo von Borries and Max Knoll.
papers
Transmission Electron Microscopes
University Berlin
These where the devices and Microscopes created by Ernst Ruska during his time at the University of Berlin.
| High Speed Oscillograph Electron Source
|
|
| General
|
| Year
|
1933
|
| Successor
|
Prototype 1
|
| Magnification Range
|
N/A
|
| Magnification Gauge Type
|
N/A
|
| Specemin Chamber Pressure
|
1e⁻3 Torr
|
| Power Consumption
|
|
| System Weight
|
|
|
| Electrion Source
|
| Accelerator Type
|
Kanalstrahlrohr
|
| Cathode Type
|
Gas Discharge
|
| Accelerating Voltage
|
75 KV
|
| Stability
|
|
| Cathode Heating Methode
|
Ion Bombardment
|
| Alignment Methode
|
|
|
| Condensor
|
| Number of Condensor Lenses
|
2
|
| Stability
|
|
| Stigmator
|
|
| Minimum Spot Size Diameter
|
|
| Condensor Alignment
|
|
| Lens Type
|
Electromagnetic
|
|
| Stage
|
| Holder Type
|
N/A
|
| X, Y Travel Range
|
N/A
|
|
| Objective Lens
|
| Focal Length
|
N/A
|
| Adjustment Range
|
N/A
|
| Spherical Error
|
N/A
|
| Stability
|
N/A
|
| Stigmator
|
N/A
|
| Alignment Aids
|
N/A
|
| Point Resolution
|
N/A Å
|
| Lens Type
|
N/A
|
|
| Projective Lens
|
| Number of Projective Lens
|
N/A
|
| Stability
|
N/A
|
| Polpeace Configuration
|
N/A
|
| Avalible Polpeace Magnification(s)
|
N/A
|
| Alignment
|
N/A
|
| Lens Type
|
N/A
|
|
| Prototyp 1
|
|
| General
|
| Year
|
1933
|
| Successor
|
Prototype 2
|
| Magnification Range
|
|
| Magnification Gauge Type
|
|
| Specemin Chamber Pressure
|
1e-3 Torr
|
| Power Consumption
|
|
| System Weight
|
|
|
| Electrion Source
|
| Accelerator Type
|
Kanalstrahlrohr
|
| Cathode Type
|
Gas Discharge
|
| Accelerating Voltage
|
75 KV
|
| Stability
|
|
| Cathode Heating Methode
|
Ion Bombardment
|
| Alignment Methode
|
|
|
| Condensor
|
| Number of Condensor Lenses
|
1
|
| Stability
|
|
| Stigmator
|
|
| Minimum Spot Size Diameter
|
|
| Condensor Alignment
|
|
| Lens Type
|
Electromagnetic
|
|
| Stage
|
| Holder Type
|
Cartridge, Top Entry
|
| X, Y Travel Range
|
|
|
| Objective Lens
|
| Focal Length
|
|
| Adjustment Range
|
|
| Spherical Error
|
|
| Stability
|
|
| Stigmator
|
|
| Alignment Aids
|
|
| Point Resolution
|
500 Å [1] Å
|
| Lens Type
|
Electromagnetic
|
|
| Projective Lens
|
| Number of Projective Lens
|
1
|
| Stability
|
|
| Polpeace Configuration
|
Single Polpiece
|
| Avalible Polpeace Magnification(s)
|
|
| Alignment
|
|
| Lens Type
|
Electromagnetic
|
|
Siemens
- ↑ Geoffrey A. Meek, Practical Electron Microscopy for the Biologist, 2nd Edition (1976), Page 57
