Dust prevention and heat dissipation module and light source system of colour wheel
US10274184B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2015 |
| Grant date | Apr 30, 2019 |
| Priority date | — |
| Expiry date | Jun 29, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/31
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A dust prevention and heat dissipation module for a color wheel and a light source system employing the same. The color wheel is sealed in a color wheel housing which has an air inlet and an air outlet. The dust prevention and heat dissipation module has a leading-in air channel in communication with the air inlet of the housing, a leading-out air channel in communication with the air outlet of the housing, a filtering device at an inlet of the leading-in air channel and an outlet of the leading-out air channel, and a fan which circulate the air via the leading-in air channel and the leading-out air channel. The air flow caused by the fan realizes heat dissipation of the color wheel, and the filtering device filters the air flowing through the color wheel housing, thereby reducing the amount of dust adhered to the surface of the color wheel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.