Multi-electron beam source with a cut off circuit and image device using the same
US5627436A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 1995 |
| Grant date | May 6, 1997 |
| Priority date | — |
| Expiry date | Aug 22, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2201/3165
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A multi-electron beam source comprising an electron-emitting element part includes: a plurality of electron-emitting elements provided two-dimensionally in a matrix-like arrangement on a substrate, with opposing terminals of the electron-emitting elements arranged adjacently in the column direction thereof being electrically connected to each other, terminals on the same side of all the electron-emitting elements in the same row being electrically connected, and the plurality of electron-emitting elements being arranged in "m" rows, "m" representing a number of two or more. In addition, a driving circuit drives the electron-emitting element part, grid electrodes modulate electron beams emitted from the electron-emitting elements, and a cut-off circuit cuts off the electron beams caused by spike noises superposed on driving pulse generated by the driving circuit part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.