Electrode structure for electron gun
US6847158B1 · kind B1 · utility
0Cited by
4References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2000 |
| Grant date | Jan 25, 2005 |
| Priority date | — |
| Expiry date | Feb 11, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J29/485
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electron gun for a cathode-ray tube comprises a dish-shaped control electrode. The electrode is made from three separate components: a substantially plane component drilled with apertures so as to allow the passage of electron beams, and two identically shaped components intended to make a skirt, serving as support for the cathode modules. The three components are welded together. This structure allows the construction of a control electrode serving as support for cathode modules by virtue of inexpensive components that are simple to manufacture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.