Deflection system with a pair of quadrupole arrangements
US5327051A · kind A · utility
6Cited by
15References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1990 |
| Grant date | Jul 5, 1994 |
| Priority date | — |
| Expiry date | Jul 19, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J29/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A deflection apparatus includes a pair of quadrupole arrangements for producing a pair of quadrupole fields in a beam path of an electron beam at different distances from a display screen. In an embodiment of the invention, the first and second quadrupole arrangements and a main deflection field producing arrangement cooperate to converge three electron beams, R, G and B, with one another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.