Laser-assisted alignment of multi-station flexographic printing system
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United States of America Patent
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May 5, 2015
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app pub date -
Mar 27, 2013
filing date -
Mar 27, 2013
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Abstract
A multi-station flexographic printing system includes a plurality of flexographic printing stations. Each flexographic printing station includes a flexo master. Each flexo master comprises a Fresnel zone pattern in a unique position. A method of aligning a plurality of flexographic printing stations includes printing a Fresnel zone pattern on a substrate in a unique position for each flexographic printing station. Light is directed through the Fresnel zone patterns on the substrate. The light focused by the Fresnel zone patterns is captured with a sensor device.
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