Glow discharge lamp
US9485848B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 10, 2013 |
| Grant date | Nov 1, 2016 |
| Priority date | — |
| Expiry date | Jul 10, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H1/4652
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The disclosure includes a glow-discharge lamp including: an elongate casing transparent to illuminating radiation and containing a plasma gas; a device for applying an electric field for maintaining a plasma in the so-called positive column region of the casing, the device including two electrodes forming an anode and a cathode located in the casing at each end thereof; and a radio-frequency or microwave cathode plasma source arranged in the casing in relation to the cathode-forming electrode, such as to generate a high-frequency discharge located on the surface of the electrode in order to generate the plasma. The disclosure also includes a lighting method of such a glow-discharge lamp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.