Lamp assembly with vaned lamp collar
US6527417B2 · kind B2 · utility
9Cited by
5References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 28, 2001 |
| Grant date | Mar 4, 2003 |
| Priority date | — |
| Expiry date | Mar 28, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3141
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A lamp collar for use in a lamp assembly of an image projector includes vanes that form an air inlet to allow air to flow into and through the lamp assembly to cool the lamp. The vanes direct the air to flow across the lamp to cool it and to circulate within the lamp assembly before exiting through an exhaust opening. The directed air flow serves to cool the lamp and to maintain a substantially constant lamp temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.