Microtip emissive cathode electron source having conductive elements for improving the uniformity of electron emission
US6043592A · kind A · utility
2Cited by
6References
52Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 8, 1995 |
| Grant date | Mar 28, 2000 |
| Priority date | — |
| Expiry date | Mar 8, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2201/319
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A microtip emissive cathode electron source has a series of cathode conductors carrying a plurality of microtips and a series of grids. Each of the electrodes of at least one of the series is in contact with a resistive layer having meshes, a group of the microtips facing each mesh. A conductive element faces the interior of each mesh in front of the group of microtips corresponding to the mesh and is in contact with the resistive layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.