Arc tube device and stem structure for electrodeless plasma lamp
US8629616B2 · kind B2 · utility
2Cited by
3References
46Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 11, 2011 |
| Grant date | Jan 14, 2014 |
| Priority date | — |
| Expiry date | Feb 27, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J65/042
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A plasma lamp apparatus. The apparatus has an arc tube structure having an inner region and an outer region in one or more embodiments. The arc tube structure has a first end comprising an associated first end diameter and a second end comprising a second end diameter according to a specific embodiment. The apparatus also has a center region provided between the first end and the second end in one or more embodiments. The center region has a center diameter, which is less than a first end diameter and/or a second end diameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.