Projector
US6513936B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2000 |
| Grant date | Feb 4, 2003 |
| Priority date | — |
| Expiry date | Jul 10, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3102
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A projector includes a first housing, a second housing, and a sound insulating member. The first housing is provided with first heat-generating elements used for generating an image, first fans producing cooling airflows towards each one of the first heat-generating elements, and vents via which the cooling airflows heated by the first heat-generating elements are discharged. The second housing encloses the first housing, and has second fans discharging the cooling airflows outside the projector. The sound insulating member is provided on a path between the vents and the second fans so as to insulate sound produced by the first fans. The projector may be provided with a dust-proof member for the projecting lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.