Heat removing means to remove heat from electric discharge lamp
US5128589A · kind A · utility
21Cited by
3References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 15, 1990 |
| Grant date | Jul 7, 1992 |
| Priority date | — |
| Expiry date | Oct 15, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/52
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Heat transfer means are disclosed to remove heat from a fused quartz arc tube being employed as the light source in an electric discharge lamp. The heat removal is carried out during lamp operation with a fused quartz protuberance that cooperates to remove heat being conducted through the arc tube walls. Various lamp embodiments are disclosed whereby such fused quartz protuberance is physically disposed adjacent the hot spot region of the arc tube in a xenon-metal halide lamp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.