| 摘要 |
An easily assembled and collapsible rear projection system comprises an easily dismantled and assembled fixture, a projector, a screen and three to five plane mirrors. The fixture is composed of extruded aluminum multi-hole tubes, H-shaped tubes, die-cast aluminum angled bolt holders, extruded aluminum coupling bolt holders, aluminum plates and bolts to join the tubes at various angles for mounting the projector and relative position of the plane mirrors. The multi-hole tubes have five holes passing through the tubes in parallel. There are four holes located at four corners and one at the center of the cross-section of the tube. The coupling bolt holder is used to join the tubes at a 180 degree angle. The angled bolt holder is used to join tubes at various angles. The fixture of the rear projection system is designed for fast dismantling into four modules, including top, a bottom, a front and a back subassemblies, by simply removing the coupling bolt holders. |
