Metal halide lamp shrouding
US8193689B2 · kind B2 · utility
0Cited by
5References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2010 |
| Grant date | Jun 5, 2012 |
| Priority date | — |
| Expiry date | Dec 11, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/827
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A discharge lamp such as a shrouded metal halide lamp is designed to reduce the potential for arcing under hot restart or restrike voltages. A stepped conformation of the pinch seal region limits arcing within the shroud while different dimensions of stems in the base increase the distance between outer lead wires in the base to prevent arcing externally of the shroud.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.