| 摘要 |
A projector (100) includes a light source unit (20), a light polarizing module (11), a color light separation optical module (12), a reflection mirror group (13), a liquid crystal panel group (17), a cross dichroic prism (18), a projection lens (19), and two automatic dust-removing devices (16) for removing dust from the liquid crystal panel group. The liquid crystal panel group includes three liquid crystal panels (171, 172, 173). Each of the liquid crystal panels includes a mounting frame (179) and a liquid crystal lens (178) attached to the mounting frame. The automatic dust-removing devices are attached to opposite sides of the mounting frames. Each of the automatic dust-removing devices includes a fastening element (161), two vibration elements (163) and an optical lens (164). The fastening element is attached to the mounting frame. The vibration elements and the optical lens are attached to the fastening element.
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