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Pixel cross talk suppression in digital microprinters

  • US 6,489,984 B1
  • Filed: 09/26/2000
  • Issued: 12/03/2002
  • Est. Priority Date: 12/29/1998
  • Status: Expired due to Fees
First Claim
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1. A printing system comprising:

  • a spatial light modulator (SLM) for image generation, the SLM comprising an array of source pixel elements, wherein each source pixel modulates illumination intercepting that pixel;

    an illumination source disposed to illuminate the SLM, whereupon modulated illumination leaves the SLM; and

    an optical projection system disposed to convey the modulated illumination from the SLM to a printing surface, wherein each source pixel generates a corresponding modulated exposure field that exposes the printing surface;

    the SLM being configured to induce a phase difference of approximately π

    /2 between adjacent exposure fields.

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