Electron tube provided with porous silicon oxide getter
US4771214A · kind A · utility
15Cited by
3References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1986 |
| Grant date | Sep 13, 1988 |
| Priority date | — |
| Expiry date | Mar 10, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J29/94
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Electron tube having an evacuated envelope equipped with an electron emitting cathode, wherein a layer of activated silicon oxide is formed inside the envelope. The activated silicon oxide layer improves the emission life.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.