Deflection yoke
US5070280A · kind A · utility
16Cited by
4References
10Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Aug 9, 1990 |
| Grant date | Dec 3, 1991 |
| Priority date | — |
| Expiry date | Aug 9, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2229/964
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A ring magnetic sub-core having a plurality of protrusions inside is disposed adjacent to an electron gun side of a main magnetic core on which a horizontal deflection coil and a vertical deflection coil are wound, and an auxiliary vertical deflection coil connected with said vertical deflection coil is wound around said magnetic sub-core, thereby making it possible to have both improvement of convergence performance and reduction of barrel distortion be consistent with each other. Further, a convergence coil is wound around said magnetic sub-core so as to correct a transverse raster or a longitudinal raster.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.