System and method for forced cooling of lamp
US7901110B2 · kind B2 · utility
6Cited by
8References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2005 |
| Grant date | Mar 8, 2011 |
| Priority date | — |
| Expiry date | Nov 21, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/523
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A gas discharge lamp includes an arc envelope and a cooling device. Cooling passage is provided between the arc envelope and the cooling device. An airflow blocking structure is mounted rotatably to the arc envelope. The airflow blocking structure blocks airflow between the cooling device and the arc envelope except for a portion of the passage directed towards a top side of the arc envelope.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.