Electrodeless light source from conducting inorganic carbide
US7768185B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2005 |
| Grant date | Aug 3, 2010 |
| Priority date | — |
| Expiry date | May 5, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B6/80
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a new type of electrodeless light sources, which can be achieved by radiating microwave on an inorganic carbide with electrical conductivity. The inorganic carbide can be carbon nanotubes (CNTs), or graphite-related fiber materials with well-order crystalline structure. The inorganic carbides of the present invention also emit high-brightness white light source in low vacuum condition (less than 10 torr) and induce plasma gas discharge emission in the presence of a trace of inert gas molecules such as nitrogen and argon. The electrodeless light source of the present invention not only emits high-brightness light emissions but also performs low thermal-radiation conversion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.