High-pressure discharge lamp with ceramic vessel
US5252886A · kind A · utility
7Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 1992 |
| Grant date | Oct 12, 1993 |
| Priority date | — |
| Expiry date | Apr 9, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/82
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The high pressure discharge lamp has an elongate discharge vessel of ceramic material. The outside surface area of the wall of the discharge vessel is strongly increased by a relief. Since a higher heat flow from the discharge vessel to the environment is possible, the lamp can withstand a higher load. In this way, lamp properties such as luminous flux, color rendering index and/or color temperature can be improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.