Electron microscope
device · 1931 · Electric age
A microscope that uses a beam of electrons (Ruska).
Inventors: Ernst Ruska, Макс Кнолль.
What it is made of
- Electron gun — has part. A source of electrons.
- Electromagnetic lenses — has part. They focus the beam.
- Vacuum pump — has part. A vacuum in the column.
- Fluorescent viewing screen — has part. Or an image detector.
Principles and materials it uses
- Electron — uses. A beam of electrons instead of light.
- Electromagnet — uses. Magnetic lenses.
- Vacuum — uses. The column is evacuated.
- Steel — is made of. The column is steel.
- Copper — is made of. The lens coils are copper.
History: what it evolved from and what it influenced
- Microscope — evolved from. Overcoming the limit of optics.