| 摘要 |
A method and product resulting from application of the method for making the images in nonreplicable documents. Documents that cannot be replicated by known copying machines or other replicating devices are produced according to the invention method. All of the methods disclosed herein are instructive for making the images and art work on such documents by forming lines into various patterns in a manner imitative of intaglio or gravure printing. The pitch (d) of the document (30) lineations (32) is deliberately selected so as to vary minutely from the pitch (p) of the scanning trace (36) of various copying machines such as photocopiers, video opticons, and the like. The variation in pitch (d) may be obtained by deliberately manufacturing the document with the desired pitch or, subsequent to the image placement therein, altering the dimensions or geometry of the document so as to effectively alter its pitch parameter.
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