Method for synchronizing positioning and exposure processes
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United States of America Patent
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Mar 16, 2004
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N/A
app pub date -
Mar 13, 2002
filing date -
Sep 17, 1999
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Abstract
A method for exposing print media formed as printed plates with the use of UV light from a light source that is modified by a projection unit with respect to direction and/or intensity, the method comprising the steps of in a first process appearing an image of a calculated and stored partial image from the projection unit on the print medium; in a second process positioning the projection unit relative to the print medium by a positioning unit; optimizing joining of partial images into one image by running the first process and the second process in parallel with coordination of the first process and the second process by a higher-level unit via control of lines, and by providing at least one unit in which one or more trigger signals are generated for starting and ending the second process to move the projection unit to a next partial unit, and for the first process for starting and ending an exposure, so that the trigger signals are evaluated by a receiver formed as the higher-level unit.
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