Duct and projector
US7014322B2 · kind B2 · utility
8Cited by
2References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 23, 2004 |
| Grant date | Mar 21, 2006 |
| Priority date | — |
| Expiry date | Aug 18, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/18
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A suction-side duct (73) is interposed between a light source device (411) and an exhaust fan (72) and includes a first suction hole (731A1) for drawing in a heated air heated by the light source device (411) and a discharge hole (732B) for discharging the indrawn heated air toward the exhaust fan (72). The first suction hole (731A1) and the discharge hole (732B) are located not to interfere with each other on a plane seen from a suction direction or a discharge direction of the heated air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.