Patent ID: 8147072
Filing Date: 2012-04-03
Classification: G03B

Abstract:
1. A cooling module for use with a projection apparatus, the projection apparatus comprising a digital micro-mirror device (DMD) module and a light source, the cooling module comprising: a heat conduction device, comprising a first surface and being in contact with the DMD module via the first surface; at least one heat pipe, having a first portion and a second portion which connects to the first portion, the at least one heat pipe connecting to the heat conduction device at the first portion thereof; and a plurality of fins, connecting with the second portion of the heat pipe; whereby heat generated from the DMD module for processing light is removed outward from the heat conduction device through the heat pipe and the at least one plurality of fins, wherein each of the fins at least partially overlaps with the adjacent fin thereof, along an illuminating direction construed by a portion of light generated from the light source, and the second portion of the heat pipe and the plurality of fins are disposed directly in front of the light source to shelter the portion of light, the DMD module is disposed between the light source and the second portion of the heat pipe in which the second portion defines an axis that respectively orthogonal to a illumination direction and the first surface of the DMD module.