Patent ID: 6930797
Filing Date: 2005-08-16
Classification: B41J

Abstract:
1. A method of printing a high resolution image onto a photosensitive media using multiple reflective spatial light modulators comprising the steps of: uniformizing light from a light source through a uniformizing optics assembly to form uniform illumination at a plurality of spatial modulators; dividing said uniformized light into a first light component, a second light component and a third light component; passing said first light component through a first polarization beamsplitter element to produce a first polarization state of said first light component and a second polarization state of said first light component; passing said first polarized component light to a first spatial light modulator to create a telecentric illumination at said first spatial light modulator; addressing said first spatial light modulator with a first image data signal to create a modulated first light component beam; passing said modulated first light component beam through said first polarization beamsplitter element to form a polarized first modulated light component; passing said second light component through a second polarization beamsplitter element to produce a first polarization state of second light component and a second polarization state of said second light component; passing said first polarized second component light to a second spatial light modulator to create a telecentric illumination at said second spatial light modulator; addressing said second spatial light modulator with a second image data signal to create a modulated second light component beam; passing said modulated second light component through said second polarization beamsplitter element to form a polarized second modulated light component; passing said third light component through a third polarization beamsplitter element to produce a first polarization state of said third light component and a second polarization state of said third light component; passing said first polarized third light component to a third spatial light modulator to create a telecentric illumination at said third spatial light modulator; addressing said third spatial light modulator with a third image data signal to create a modulated third light component beam; passing said modulated third light component through said third polarization beamsplitter element to form a polarized third modulated light component; directing said modulated first, second and third modulated light components towards a combining prism element; combining said modulated first, second and third component light beams with said combining prism to form a complete image; directing said complete image through a print lens assembly to expose said photosensitive media; passing said polarized first modulated light component through a first blur filter to form a first blurred light component; passing said polarized second modulated light component through a second blur filter to form a second blurred light component; passing said polarized third modulated light component through a third blur filter to form a third blurred light component; directing said first, second and third blurred light components towards a combining prism element; combining said blurred first, second and third component light beams with a combining prism to form a complete image; and directing said complete image through a print lens assembly to expose said photosensitive media.