Patent ID: 6739736
Filing Date: 2004-05-25
Classification: F21V,H04N

Abstract:
A radiating system for a projector device, comprising:a ventiduct structure having a ventiduct space formed therein; a light source arranged in the ventiduct space and having a lamp center; an annular baffle surrounding the light source to divide the ventiduct structure in to a first ventiduct structure having a first ventiduct space and a second ventiduct structure having a second ventiduct space, wherein the first ventiduct structure has a first air inlet and a first air outlet at two opposing ends thereof, the second ventiduct structure has a second air inlet and a second air outlet at two opposing ends thereof, the first air outlet communicates with the second ventiduct space, and the first and second ventiduct spaces form an air flow path in which the first and second ventiduct spaces are arranged in series with one another; a lamp radiating fan disposed adjacent to the light source at a lateral side thereof and at an inner side of the first air inlet of the first ventiduct structure, and being parallel to the baffle; and a second radiating fan disposed adjacent to the light source at the lateral side thereof and adjacent to the lamp radiating fan simultaneously, at an inner side of the of the second air outlet of the second ventiduct structure, and being perpendicular to the baffle; whereby the lamp radiating fan draws air into the first ventiduct space through the first air inlet, the air flows through the first air outlet to the second ventiduct space, and the second radiating fan exhausts the air through and out of the second air outlet to carry away a heat generated by the light source.