Plasma lamp with conductive material positioned relative to RF feed
US7888874B2 · kind B2 · utility
2Cited by
56References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2007 |
| Grant date | Feb 15, 2011 |
| Priority date | — |
| Expiry date | Apr 25, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In an example embodiment, an electrodeless plasma lamp is provided which comprises a lamp body comprising a dielectric material having a relative permittivity greater than 2, and a bulb adjacent to the lamp body, the bulb containing a fill that forms a plasma when RF power is coupled to the fill from the lamp body. An RF feed is coupled to the lamp body and a radio frequency (RF) power source for coupling power into the lamp body through the RF feed is provided. A shortest distance between an end of the bulb and a point on the RF feed traverses at least one electrically conductive material of the lamp body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.