Portable projector using an LED and related heat dissipation system
US7914152B2 · kind B2 · utility
5Cited by
4References
11Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Feb 1, 2008 |
| Grant date | Mar 29, 2011 |
| Priority date | — |
| Expiry date | Mar 2, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/2033
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A portable projector with a heat dissipation system, includes a housing and two LED light sources located in the housing. Each of the LED light sources includes a circuit aboard, an LED device mounted on the circuit aboard and a heat pipe. The heat pipe has an evaporating section thermally contacting the circuit board, and a condensing section. A fin set thermally contacts with the condensing section of the heat pipe for dissipating heat therefrom. The fin set of one LED light source is located behind the evaporating section of the heat pipe of the other light source and closely adjacent to a wall of the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.