Optical device and projector
US7192143B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2005 |
| Grant date | Mar 20, 2007 |
| Priority date | — |
| Expiry date | Sep 30, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3144
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical device (44) includes: a optical modulator holder (4402) that has inside thereof a cooling chamber in which a cooling fluid is encapsulated, and holds a optical modulator in such a manner that heat can be transferred between the optical modulator holder and the cooling fluid within the cooling chamber; a plurality of fluid circulation members (448) that are connected to the cooling chamber of the optical modulator holder (4402) for mutual communication to guide the cooling fluid outside the cooling chamber and guide the cooling fluid inside the cooling chamber, again; and a main tank (445) that is arranged in the flow path of the cooling fluid in the plurality of fluid circulation members (448) and accumulates the cooling fluid. The main tank (445) has a cooling fluid inlet section for allowing the main tank (445) to be replenished with the cooling fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.