Injection molded ceramic metal halide arc tube having non-tapered end and method of forming same
US7382097B2 · kind B2 · utility
2Cited by
12References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2004 |
| Grant date | Jun 3, 2008 |
| Priority date | — |
| Expiry date | Dec 1, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/827
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An arc tube for a ceramic metal halide lamp includes a hollow first body member (40) that is tapered along a majority of its length to aid in removing the molded component from a pin during assembly. An open end (46) of the first body member has a constant diameter (60) allowing it to be joined to a constant diameter portion (72) of the second body member or end cap (70). The mating constant diameter portions ensure that the hollow first body member can be monolithically joined with the end cap with a reduced level of seal voids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.