UV enhancer for a metal halide lamp
US6806646B2 · kind B2 · utility
2Cited by
12References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2001 |
| Grant date | Oct 19, 2004 |
| Priority date | — |
| Expiry date | Nov 22, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/54
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A starting aid for a metal halide lamp uses iodine and an inert gas instead of mercury so that the entire metal halide lamp may be mercury-free. The starting aid is a UV enhancer that includes a UV-transmissive capsule with a cavity in which iodine and an inert gas are sealed, wherein the iodine emits UV radiation when excited to reduce a starting voltage of the lamp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.