Metal halide lamp with fill comprising lead halide
US7683549B2 · kind B2 · utility
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3References
3Claims
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Assignee
Inventor
Key dates
| Filing date | Jun 1, 2006 |
| Grant date | Mar 23, 2010 |
| Priority date | — |
| Expiry date | May 11, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/125
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A metal halide fill for forming an ionizable fill comprises at least one inert gas, mercury and metal halides, comprising the constituents Na halide, Tl halide, Ca halide and halides of the rare earths. It also comprises Pb halide. This fill may be present in particular in the discharge vessel of a metal halide lamp which has an outer bulb.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.