Starting electrodes for solenoidal electric field discharge lamps
US4253047A · kind A · utility
16Cited by
3References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 23, 1977 |
| Grant date | Feb 24, 1981 |
| Priority date | — |
| Expiry date | May 23, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J65/048
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Efficient starting of solenoidal electric field discharge lamps is effected when a primary voltage exceeds a critical transition level. A starting potential may be applied to electrodes on the external surface of the lamp which are capacitatively coupled to a fill gas. Alternately, the electrodes may be disposed within the lamp envelope. Optimally, the starting electrodes are disposed along the axis of an annular transformer core at opposite ends of a tunnel region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.