Patent ID: 7618145
Filing Date: 2009-11-17
Classification: G03B

Abstract:
1. A heat dissipation device of a projector for transmitting heat from a lamp being inside the projector out of the projector, the heat dissipation device comprises: a fan disposed near the lamp for generating an air flow to take away the heat from the lamp along a first direction; a diversion duct for changing the direction of the air flow to a second direction from the first direction; and a division vane disposed within the diversion duct for splitting the air flow with the heat to discharge off the diversion duct, wherein the division vane is an arc structure and disposed matching up the veering of the diversion duct, the division vane dividing the diversion duct into a first duct and a second duct, the first duct disposed close to a concave side of the division vane and facing the air flow along the first direction, and the second duct disposed close to a convex side of the division vane.