High-pressure sodium vapor discharge lamp with hybrid antenna
US8456087B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2009 |
| Grant date | Jun 4, 2013 |
| Priority date | — |
| Expiry date | Dec 23, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/547
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A discharge lamp includes a body portion having inner and outer body walls and first and second ends. The inner body wall defines at least part of a cavity located between the first and second ends. First and second end parts have inner end-part and outer end-part walls and a hole extending between the inner end-part wall and the outer end-part wall. The first and second end parts are each located, at least in part, within the cavity and separate from each other so as to maintain a gas under pressure. First and second electrodes are included in the cavity. An antenna has first and second antenna ends and is formed on the outer body wall of the body portion and the outer end-part wall of at least one of the first and second end parts. The antenna is not directly connected to the first and second electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.