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Projection display apparatus comprising a spatial-beam changing unit which changes spatial positions of beams
Projection display apparatus comprising a spatial-beam changing unit which changes spatial positions of beams
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机译：包括空间光束改变单元的投影显示设备，该空间光束改变单元改变光束的空间位置
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摘要
A projection display apparatus includes: an illumination optical unit which emits beams; an image display element which modulates the beams according to image information; a spatial-beam changing unit which changes spatial positions of the beams emitted from the illumination optical unit; and a uniform-beam distribution unit, disposed between the spatial-beam changing unit and the image display element, which uniformly distributes the beams. The spatial-beam changing unit includes a moveable prism, a movement of which changes the spatial positions of the beams emitted therefrom.
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