Metal vapor discharge lamp with radioactively impregnated ceramic material body
US4827176A · kind A · utility
2Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1987 |
| Grant date | May 2, 1989 |
| Priority date | — |
| Expiry date | Dec 18, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/548
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A metal vapor discharge lamp. The metal vapor discharge lamp includes an enclosed discharge tube having a pair of main electrodes mounted at spaced apart locations therein, the discharge tube including a fill of at least a metal vapor and a starting gas, a radiation source including radioactively impregnated ceramic material having a vitrified radioactive outer protection portion and an outer bulb for enclosing the discharge tube and a circuit for electrically generating an arc between the main electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.