High pressure metal vapor discharge lamp with radioactive material impregnated in ceramic
US4445067A · kind A · utility
6Cited by
9References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 1981 |
| Grant date | Apr 24, 1984 |
| Priority date | — |
| Expiry date | May 20, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/82
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A high pressure metal vapor discharge lamp including an arc tube having opposed ends at which are provided respective main electrodes and a fill including mercury and a starting gas, a radioactive source material including a radioactive substance having a half-life less than 1.times.10.sup.4 years sealed in the arc tube, an outer tube enclosing the arc tube and a circuit for starting the arc tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.