Projection display device
US8388143B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 30, 2010 |
| Grant date | Mar 5, 2013 |
| Priority date | — |
| Expiry date | Apr 6, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/16
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A projection display device includes a light source, a reflector, and a fixing portion. The device further includes a first air supply portion and a second air supply portion; a first air drawing portion which separates the cooling air from the first air supply portion into streams of the cooling air to guide one of the streams into an interior of the reflector in a first direction and to guide the other of the streams to the fixing portion in a second direction; and a second air drawing portion which separates the cooling air from the second air supply portion into streams of the cooling air to guide one of the streams into the interior of the reflector in a third direction and to guide the other of the streams to the fixing portion in a fourth direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.