Projector apparatus
US8177372B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2007 |
| Grant date | May 15, 2012 |
| Priority date | — |
| Expiry date | Jan 13, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/16
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
This invention provide a projector apparatus enabled to lower its exhaust air temperature by adding only minor modifications to the existing structure, without altering its basic structure. The liquid crystal projector apparatus of the invention has a casing (1) for accommodating therein a light source (4), an optical system adapted to construct imaging light in response to a beam of light received from the light source, a power supply (9), and a cooling unit (6) mounted on the side wall of the casing (1) to cool the components in the casing. Provided on the inner wall of the casing is an air inspiration mechanism (16, 17, 18, 126) in association with the exhaust unit (6), whereby the exhaust unit (6) can inspire ambient air through the air inspiration mechanism to lower the temperature of the air to be expired from the exhaust unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.