Projector apparatus equipped with a structure capable of shielding radiation and dissipating heat from a light source
US7946712B2 · kind B2 · utility
0Cited by
1References
6Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Sep 5, 2007 |
| Grant date | May 24, 2011 |
| Priority date | — |
| Expiry date | Apr 5, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/16
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A projector apparatus equipped with a metal plate structure serving as a light shield against a light source and as a heat radiator is provided. The metal plate structure is arranged over the light source to hide the light source. The metal plate structure extends farther to a cooling fan and connects to the upper end of the air expiration face of the fan. The metal plate structure thus serves as the top plate of the baffle section of the exhaust duct of the fan for leading the air expired from the fan. The metal plate structure also serves as a shield plate, which can be connected to a grounded metal piece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.