Patent ID: 6733157
Filing Date: 2004-05-11
Classification: F21V,H04N

Abstract:
A heat-dissipating device adapted for a U-shape projector system having a light-source lamp and a projecting lens parallel and adjacent to the light-source lamp, comprising:a ventiduct structure having an air input end and an air output end arranged at two ends thereof, and a ventiduct space formed between the air input end and the air output end; wherein the projecting lens is positioned outside of the air input end of the ventiduct structure; wherein the light-source lamp is positioned in the ventiduct space of the ventiduct structure; a lamp radiating fan positioned at an outside of the air input end of the ventiduct structure and below the projecting lens; and a radiating fan positioned inside of the air output end of the ventiduct structure; wherein the lamp radiating fan inhales an air flow through the air input end to blow toward a lamp center of the light-source lamp, and the radiating fan discharges the air flow through the air output end to cool the light-source lamp.