Electron emission devices
US6960876B2 · kind B2 · utility
1Cited by
2References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2003 |
| Grant date | Nov 1, 2005 |
| Priority date | — |
| Expiry date | Jun 12, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/939
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electron emission device with nano-protrusions is described. Electrons are emitted from the nano-protrusions and directed by one or more conductors into beams. The beams may be shaped to be collimated, diverged, or converged. The shaped beams from one or more nano-protrusions may be focused onto a target spot through the use of additional electron optics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.