Color-television picture tube with internal permanent magnets for convergence correction
US4189659A · kind A · utility
8Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 15, 1978 |
| Grant date | Feb 19, 1980 |
| Priority date | — |
| Expiry date | May 15, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J9/44
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An in-line color-television picture tube wherein purity adjustment, vertical pincushion correction, and static convergence correction are performed by magnetic fields produced by permanent magnets acting on the beams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.