Apparatus and method for laser engraveable printing plates
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United States of America Patent
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Jul 6, 2010
Grant Date -
Oct 25, 2007
app pub date -
Apr 25, 2006
filing date -
Apr 25, 2006
priority date (Note) -
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Abstract
An apparatus and method for calibration of laser ablating energy versus ablating depth for a laser ablateable printing plate in relation to materials forming the printing plate, includes a memory for storing data, for each of a plurality of materials, corresponding to correlated different detected depths of each of a plurality of laser ablated areas with ablating energy levels. A first laser ablates a printing image of desired depth in a printing plate formed by a selected one of the materials. A first control device interpolates laser ablating energy levels for the printing image of desired depth in the printing plate formed by the selected material, in accordance with the stored data and the selected material, and controls the laser to laser ablate the printing image in the printing plate of the selected material in accordance with the interpolated laser ablating energy levels.
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