| 摘要 |
PURPOSE: A projector system equipping a lifting reflector is provided to project image to a screen correctly by adjusting height of a reflector box and an angle of the reflector. CONSTITUTION: A cubic hanger box(20) opened in upper and lower ends is installed to a ceiling(23). Middle and upper plates(21,22) installed to an upper end of the hanger box has a cable penetrating hole and an exhaust hole. A projector(24) is installed to a lower end of the middle plate inside the hanger box toward the ground in a lens by an attaching device. A ceiling member(26) is the same size as an opening portion of the lower end of the hanger box. A reflector box(27) has a reflector(28) attached to an upper end of the ceiling member. Sliders(34,34') are installed to lift the reflector box to be faced each other in the reflector box. Slider guides(33,33') are attached to both sides of the inside of the hanger box to guide movements of sliders. Wires are installed prior to sliders to adjust an angle of the reflector box. A pulley(29,29') winds and unwinds wires. A pulley shaft(31) having pulleys on both sides is installed to an upper portion of the middle plate. A driving motor(30) rotates the pulley shaft forward or backward.
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