Method and apparatus for printing high resolution images using reflective LCD modulators

This invention relates generally to a method for spatially and temporally modulating a light beam and more specifically to imaging a modulated light onto a light sensitive media. An apparatus for printing images including an illumination optics () that provides uniform area light is disclosed. A pol...

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Bibliographische Detailangaben
Hauptverfasser: Donner, Janet, Ramanujan, Sujatha, Blish, Nelson A
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:This invention relates generally to a method for spatially and temporally modulating a light beam and more specifically to imaging a modulated light onto a light sensitive media. An apparatus for printing images including an illumination optics () that provides uniform area light is disclosed. A polarizing beamsplitter () receives the uniform area light and redirects a first polarization state of the light to a first reflective LCD modulator () which modulates the first polarized light on a site by site basis and reflects the first modulator light through the polarizing beamsplitter (). A parallel plate tilted at a first angle spatially displaces the first modulated light along a first line normal to the polarizing beamsplitter (). A print lens assembly () images the first modulated light to a first position on a media plane to print a first image. The parallel plate is moved to a second position () and a new image is printed.