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Arrangement of amp;lgr;/2 retardation plate in projector
Arrangement of amp;lgr;/2 retardation plate in projector
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机译:投影机中&lgr; / 2相位差板的布置
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摘要
A projector is provided with an illuminating optical system, a color-separating optical system that separates light into first through third beams of colored light, first through third electro-optical devices that modulate the first through third beams of colored light to generate first through third beams of modulated light, a color combiner that combines the first through third beams of modulated light to create a composite light, and a projecting optical system that project the composite light. The projector further includes a &lgr;/2 retardation plate provided on at least one of an incident side and an exit side of the third electro-optical device. Each of the &lgr;/2 retardation plates has a first face open to the atmosphere and a second face in contact with a transmissive member.
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