High frequency discharge energy supply means and high frequency electrodeless discharge lamp device
US6049170A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1997 |
| Grant date | Apr 11, 2000 |
| Priority date | — |
| Expiry date | Oct 30, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J65/044
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Use of a side resonator group comprising a plurality of side resonators, each including both an electromagnetically inductive function section made of a substantially ringed conductive material and an electrically capacitive function section made of a gap, so arranged in a circle as to make said electrically capacitive function sections opposed to the center as high frequency energy supply means, enables a high frequency discharge to take place in a smaller space than that observed in use of a conventional cavity resonator. Besides, application of said high frequency energy supply means to a high frequency electrodeless lamp device enables high frequency energy to be effectively coupled even with a relatively small size of electrodeless discharge lamp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.