Electrodeless discharge lamp utilizing induced electric field generated by a high frequency electromagnetic field
US5747945A · kind A · utility
6Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 4, 1996 |
| Grant date | May 5, 1998 |
| Priority date | — |
| Expiry date | Oct 4, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/547
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrodeless discharge lamp includes a single type auxiliary electrode for preliminary discharging, disposed on or adjacent to outer peripheral wall of lamp tube at a position for being electrostatically coupled to interior space of the tube, and supplied with a power from a second high frequency power source other than a first high frequency power source supplying a high frequency power to a main induction coil on the tube, whereby the lamp is made to attain an excellent startability without requiring any large size high frequency power source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.