Modulator with variable launch conditions for multi-electron gun display devices
US4263529A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1979 |
| Grant date | Apr 21, 1981 |
| Priority date | — |
| Expiry date | Oct 22, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J31/124
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An evacuated envelope is divided into a plurality of electron propagation channels. Each channel includes an electron gun section and a beam guide section. The electron gun section provides electrons in the form of beams to the guide section. The guide section includes spaced guide meshes and the electrons are propagated along the channel in the space between the guide meshes. A launch section, in the form of at least one pair of launch electrodes, is arranged between the electron gun section and the beam guide section. The conditions under which electrons leave the gun section and enter the guide section are selected by the application of selected voltages to the launch electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.