Patent ID: 6523959
Filing Date: 2003-02-25
Classification: F21V,G03B

Abstract:
A cooling device of liquid crystal projector, comprising: a container, having a upper wall, a lower wall and a front and rear wall enabling light to penetrate through it, and transmitting fluid is filled in said container, the front side of said upper wall, connecting with said front wall face, having a plurality of grooves separated by a plurality of protruding parts, and a place of said lower wall corresponding to the front side of said upper wall having a plurality of grooves separated by said protruding parts;a flow guiding system, disposed in said container, comprising an inlet flow guiding plate and exit flow guiding plate at the front side of said wall face; a optical system, disposed in said container, comprising a liquid crystal panel, a light synthesizer prism and a light examining polarizer, wherein said liquid crystal panel is disposed between said inlet flow guiding plate and exit flow guiding plate, said light synthesizer prism is disposed at a proper place of said container, and said examining polarizer is disposed between said exit flow guiding plate and light synthesizer prism; and a heat dissipation system, disposed in said container, comprising a plurality of heat pipes disposed at the two flank sides of said liquid crystal panel, and one end of said heat pipe being disposed at a heat dissipating unit outside said container, and another end being disposed at a heat absorbing unit inside said container.