Patent ID: 6773118
Filing Date: 2004-08-10
Classification: G02B

Abstract:
An apparatus for positioning and adjusting a light pipe, said light pipe including a top glass, a bottom glass, a right glass and a left glass, said light pipe being installed on an optical engine of a projector, said apparatus comprising:a bracket formed by a metallic plate, said metallic plate comprising a first end and a second end, wherein said bracket is formed by folding said metallic plate, and wherein said first end and said second end substantially perpendicularly press to each other to form a space to accommodate said light pipe, said bracket having at least a protrusion, said protrusion contacting with said light pipe at a lateral-side surface; a clip device for positioning said bracket; and a first adjustment screw having a front end, said front end of said first adjustment screw pressing against a side surface of said bracket, a horizontal position of said light pipe being adjusted by said first screw and said protrusion; and a second adjustment screw having a front end, said front end of said second adjustment screw pressing against a bottom surface of said bracket, a vertical position of said light pipe being adjusted by said second screw and said protrusion.