High pressure metal vapor lamp with outer protective envelope and getters therein
US4906887A · kind A · utility
2Cited by
7References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1988 |
| Grant date | Mar 6, 1990 |
| Priority date | — |
| Expiry date | Dec 19, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/82
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A high pressure metal vapor lamp including an outer protective envelope having a lens and a reflector member having a base for connecting the lamp to a source of electrical power. An elongaated arc tube is provided extending cross-axially relative to the axis of the lamp, the arc tue being supported by leads extending from the base. A pair of barium flash getters is provided extending from respective ends of the arc tube towards, and in close proximity to, the lens and facing the reflector member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.