Discharge lamps using hollow cathodes with integrated getters and methods for manufacturing same
US6916223B2 · kind B2 · utility
1Cited by
19References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 12, 2002 |
| Grant date | Jul 12, 2005 |
| Priority date | — |
| Expiry date | Feb 17, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/26
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A hollow cathode having at least a portion of the inner, outer or both surfaces coated with a layer of a getter material is described. Some methods for the production of the hollow cathode of the invention are also described, which include cathodic and electrophoretic deposition of the getter layer onto the hollow cathode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.