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Dual-fresnel field lens for a single-panel LCD projection system
Dual-fresnel field lens for a single-panel LCD projection system
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机译:用于单面板LCD投影系统的双菲涅尔场镜
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摘要
A dual-Fresnel field lens liquid crystal display projection system which includes first and second flat Fresnel lenses having their faceted surfaces facing one another and positioned adjacent to one another along the optical axis of the system between a liquid crystal display light modulator and the entrance aperture to a projection lens assembly to form a field lens assembly for the projection system.
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