Electron emitting apparatus
US6583553B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 6, 2000 |
| Grant date | Jun 24, 2003 |
| Priority date | — |
| Expiry date | May 20, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J1/316
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electron emitting apparatus that can realize a convergence of electron trajectories and an improved electron emission efficiency. The apparatus comprises a substrate having a first primary surface that is substantially planar, an electron emitting device comprising first and second electroconductive members disposed on the primary surface and at an interval from one another, and an anode electrode having a substantially planar surface opposite to the first primary surface. A voltage applying means of the apparatus applies a potential higher than a potential applied to the first electroconductive member to the second electroconductive member to irradiate electrons emitted from the electron emitting device onto the anode electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.