Mounting for cathode in an electron gun
US6373182B1 · kind B1 · utility
4Cited by
2References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2000 |
| Grant date | Apr 16, 2002 |
| Priority date | — |
| Expiry date | Mar 24, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J9/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Apparatus and method for mounting a field emission device having emitters and an extraction grid in an electron gun are provided. The apparatus may be adapted from parts of a conventional electron gun that uses a thermionic emitter. Electrical connection to the grid is provided by bumps that are spring-loaded against a conducting surface, such as the second grid of a conventional electron gun.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.