Multistage cooling system for projector
US7922334B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 4, 2008 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | May 31, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/16
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A projector having optical components, a power source unit, and a light source unit. The projector is capable of lowering its internal temperature utilizing: a first, second, and third fan (41, 42, 43) provided near the optical components for introducing external air from outside the projector to cool the optical components; and a fourth, fifth, and sixth exhaust fan (16, 17, 18). The fourth fan (16) blows the air that was taken in by the first, second, and third fan (41, 42, 43) and has cooled the optical components, onto the light source unit to further cool the light source unit. The fifth and sixth exhaust fans (17, 18) discharge the air that has cooled the light source unit and power supply unit out of the projector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.