Inline type electron gun for color cathode ray tubes
US5291093A · kind A · utility
7Cited by
5References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 12, 1992 |
| Grant date | Mar 1, 1994 |
| Priority date | — |
| Expiry date | Feb 12, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J29/503
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An inline type electron gun has a lopsided electric field applied to it to improve the spot formation of an electron beam in forming an expanded focus lens. The electron gun has first electrode to eighth electrode and has a lopsided electric field formed only at the two side apertures of a trio of apertures formed at one of the opposing sides of the sixth and seventh electrodes before a lopsided main focus lens formed between the seventh and eighth electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.