Method of producing multidimensional lithographic separations free of moire interference

  • US 5,617,178 A
  • Filed: 01/29/1996
  • Issued: 04/01/1997
  • Est. Priority Date: 05/03/1994
  • Status: Expired due to Term
First Claim
Patent Images

1. A method of producing a multidimensional lithographic separation void of moire and screen interference, the separation comprising a plurality of segments created from a plurality of electronic frames and from which a multidimensional lithograph can be produced and printed on a lenticular lens of a predetermined line count, the method comprising the steps of:

  • A. Creating a plurality of electronic frames;

    B. Ordering the frames into a desired sequence;

    C. Rasterizing each frame at a nonbinary pixel resolution according to the formula
    
    
    space="preserve" listing-type="equation">resolution=1 times fin which 1 is the lenticular line count and f is the number frames in the lithographic separation;

    D. Compressing each frame such that each frame is compressed according to the formula
    
    
    space="preserve" listing-type="equation">Compression=1/fin which f is the number of frames in the separation;

    E. Converting the nonbinary pixels of the compressed frames to individual color plates of binary pixels;

    F. Interlacing the frames in the desired sequence of step (B);

    G. Outputting the interlaced frames to an imaging device;

    H. Producing a lithographic separation from the imaging device of step G; and

    I. Printing a multidimensional lithograph directly on the lenticular lens from the lithographic separation.

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