Illuminant for discharge lamp
US7004809B2 · kind B2 · utility
0Cited by
15References
3Claims
0Family size
Inventor
Key dates
| Filing date | Jul 31, 2001 |
| Grant date | Feb 28, 2006 |
| Priority date | — |
| Expiry date | Jul 31, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A durable illuminant with simple structure and stable discharge characteristics is provided. Discharge electrodes fixed to respective sealing spacers are inserted into a housing from both ends, the housing constructed from a cylindrical glass material with equal inner radii at both open ends. A discharge chamber is filled with a discharge gas and the sealing spacers are fused and fixed to the housing at this condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.