Edge sealing electrode for discharge lamp
US6700326B1 · kind B1 · utility
1Cited by
7References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 14, 1999 |
| Grant date | Mar 2, 2004 |
| Priority date | — |
| Expiry date | Jun 14, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/307
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A sealing electrode for discharge lamp having electrically conductive cup, and an emitter pellet is disclosed. The cup seals a passage into the discharge lamp, and additionally supports the electrode pellet or tip for the discharge. The design enables the emitter, electrode and seal structure to be made separately off line, while also enabling the emitter to be protected from contaminants during subsequent assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.