Light source apparatus and projector type image display apparatus
US8807760B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2011 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Nov 9, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention is directed to provide a light source apparatus that includes space-saving LED cooling unit, and a projector type image display apparatus including the same. The light source apparatus of the present invention includes a plurality of LEDs, a plurality of heatsinks that are respectively thermally coupled to the LEDs and that are disposed in series with an interval between each other, and a cooler mechanism that sends a cooling airflow into the heatsinks along their disposition direction. A heatsink included in the plurality of heatsinks that dissipates the heat of an LED having a greater heat generating amount out of the plurality of LEDs is disposed downstream in the cooling airflow from the other heatsink.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.