Projection display apparatus comprising a spatial-beam changing unit which changes spatial positions of beams
AssigneeSamsung Electronics Co., Ltd.
InventorsYoung-chol Lee, Sang-hyun Sohn, Yong-dok Cha, Seok-chan Hong
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Abstract
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.
Claims16
A projection display apparatus comprising:
- an illumination optical unit which emits beams;
- an image display element which modulates the beams incident thereon 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 incident thereon,
- wherein the spatial-beam changing unit comprises a moveable prism the movement of which changes the spatial positions of beams emitted therefrom.
Dependencies are inferred from the claim text.