Metal halide lamp and automotive headlamp apparatus
US7141932B2 · kind B2 · utility
2Cited by
12References
11Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Mar 24, 2003 |
| Grant date | Nov 28, 2006 |
| Priority date | — |
| Expiry date | Mar 24, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/125
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A metal halide lamp includes a fire-resistant and translucent hermetic vessel containing amounts of scandium halide and sodium halide sealed in the hermetic vessel satisfying the formula of 0.25<a/(a+b)<0.5, where reference character “a” denotes the mass of scandium halide and reference character “b” denotes the mass of sodium halide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.