Patent ID: 6614462
Filing Date: 2003-09-02
Classification: B41J,G03B

Abstract:
An apparatus for printing images comprising:telecentric illumination optics which provides uniform area light; a polarizing beamsplitter which receives said uniform area light and redirects a first polarization state of said light; a first reflective liquid crystal display (LCD) modulator which modulates said first polarized light on a site by site basis with a first image or a second image and reflects said modulated light through said polarizing beamsplitter; a parallel plate tilted at a first angle or a second angle which spatially displaces said modulated light with said first image along a first line normal to said polarizing beamsplitter, or with said second image, along a second line normal to said beamsplitter; a print lens assembly which images said modulated light with said first image to a first position on a media plane to print said first image on a light sensitive medium and images modulated with said second image on said media plane print said second image on said light sensitive medium; and a motor which rotates said parallel plate between said first angle and said second angle wherein said second line that is parallel to said first line when said parallel plate is tilted at said second angle to form a composite image on said light sensitive medium.