Electrodeless discharge lamp device
US4864194A · kind A · utility
28Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 4, 1988 |
| Grant date | Sep 5, 1989 |
| Priority date | — |
| Expiry date | May 4, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J65/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrodeless discharge lamp device has an envelope in which a gas that discharges to emit light upon application of a high frequency voltage is sealed, the envelope including two straight pipe parts forming a circulating discharge path, so that a high frequency electric current is caused to flow throughout the discharging gas in the entire envelope and a uniform discharge light emission can be attained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.