Metal halide lamp with double arc tubes
US8912720B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2010 |
| Grant date | Dec 16, 2014 |
| Priority date | — |
| Expiry date | Apr 10, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/827
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a metal halogen lamp comprising, inside an outer casing (7), first (3) and second (5) arc tube members, which are electrically parallel-connected and are connected via conductive members (9) to a base part (11), each arc tube member having a first end (15), facing toward the top part (17) of the outer casing (7) opposite the base part (11), and a second end (19), facing toward the base part (11). The first arc tube member (3) is arranged closer to the top part (17) than the second arc tube member (5), and the second end (19) of the first arc tube member (3) and the first end (15) of the second arc tube member (5) adjoin an imaginary plane (P) defined substantially transversely to the center line (CL) of the outer casing (7), which center line extends from the top part (17) to the base part (11).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.