In-line type electron gun structure
US4381473A · kind A · utility
2Cited by
1References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 25, 1980 |
| Grant date | Apr 26, 1983 |
| Priority date | — |
| Expiry date | Jul 25, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J29/624
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In an in-line type electron gun structure including three in-line type electron guns and a plurality of grid electrodes respectively aligned with the electron guns, each sleeve electrode has a length equal to at least 50% of an inner diameter thereof and the inner diameter is gradually increased toward a free end of the sleeve-shaped electrode from a point at about one half of the length thereof. This construction eliminates an auxiliary electrode, thus reducing the cost of manufacturing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.