Patent ID: 7210822

Claim:
A combination structure for a hollow integration rod, the combination structure being composed of a plurality of reflective plates for forming a light tunnel, the plurality of reflective plates comprising: a first reflective plate, comprising: a first base having a first lateral side, the first lateral side having at least one first convexity extension, the length of each first convexity extension being shorter than the first lateral side; and at least one first convexity extending from each corresponding first convexity extension, at least one first segment being formed on the first lateral side except the first convexity extension, at least one first concavity being formed next to each first segment and next to the first convexity adjacent to the first segment; a second reflective plate, comprising: a second base having a second lateral side, the second lateral side having at least one second convexity extension, the length of each second convexity extension being shorter than the second lateral side; and at least one second convexity extending from each corresponding convexity extension, at least one second segment being formed on the second lateral side except the second convexity extension, at least one second concavity being formed next to each second segment and next to the second convexity adjacent to the second segment; wherein when the plurality of reflective plates is assembled to become the hollow integration rod, each first convexity is wedged correspondingly with each second concavity, and each second convexity is wedged correspondingly with each first concavity, and the combination structure for the hollow integration rod is fixed by a fixing component, and wherein the first base further comprises a third lateral side opposite to the first lateral side, and at least one third convexity is extended from the third lateral side, the number and the shape of the third convexity being the same as the number and the shape of the first convexity, the third convexity being disposed opposite to the first convexity, the third convexity being wedged with a third reflective plate included in the plurality of reflective plates.