Projector including an image projecting device and an interior cooling device
US8038302B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 19, 2008 |
| Grant date | Oct 18, 2011 |
| Priority date | — |
| Expiry date | Jun 28, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/16
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A projector includes an exterior casing that includes an air intake port for introducing outside air into the interior thereof; and a cooling device that cools the interior of the exterior casing by the outside air introduced via the air intake port, in which the cooling device includes a first sirocco fan and a second sirocco fan that discharge air taken along axes of rotation of the fans to the direction along tangent of rotation, and an air intake port-side duct that guides the outside air introduced via the air intake port toward the first sirocco fan and the second sirocco fan, and in which the first sirocco fan and the second sirocco fan are disposed with axes of rotation thereof oriented so as to intersect with each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.