Plasma lamp with dielectric waveguide body having shaped configuration
US8344625B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2010 |
| Grant date | Jan 1, 2013 |
| Priority date | — |
| Expiry date | Apr 29, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J65/044
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A plasma lamp apparatus that includes an improved bulb support assembly to increase the lumens per watt output of the apparatus. The bulb support assembly includes a support structure that forms a cavity for receiving the bulb. The bulb is supported within the cavity though a protrusion that extends out from the support structure in a curved manner. By created a curved protrusion, the electric field within the resonating structure of the lamp apparatus is lowered. Lowering the electric field leads to lower resonating frequencies of the resonating structure. In lowering the resonating frequency, the resonating structure is driven to resonate at lower power levels, thereby increasing the lumens per watt output of the lamp apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.