Plural gun cathode ray tube having parallel plates adjacent grid apertures
US4086513A · kind A · utility
35Cited by
6References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 3, 1975 |
| Grant date | Apr 25, 1978 |
| Priority date | — |
| Expiry date | Mar 3, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J29/503
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In the tube gun, at least one of the two electrode grids nearest the screen has extensions on opposite sides of its apertures to distort an electrostatic field formed by the grid to at least partially compensate for distortion of an electron beam in the magnetic deflection field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.