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BEAM COMBINER FOR LCD PROJECTOR UTILIZING A PENTA-PRISM
BEAM COMBINER FOR LCD PROJECTOR UTILIZING A PENTA-PRISM
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机译:液晶投影仪的光束组合器,采用五角棱镜
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摘要
A beam combiner for an LCD projection television system makes use of a penta-prism which focuses three separate light sources on a viewing screen. The use of a penta-prism as a beam combiner allows for a compact light path, simplicity of manufacturing and a cost effective dichroic mirror arrangement as part of the penta prism. The light path within the penta-prism from the three light sources forms a right-angled triangle which provides the above-identified advantages.
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