SPECTRALLY CONTROLLED HIGH ENERGY DENSITY LIGHT SOURCE PHOTOPOLYMER EXPOSURE SYSTEM
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United States of America Patent
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Issued Date -
Mar 25, 2010
app pub date -
Jan 30, 2008
filing date -
Jan 30, 2007
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Abandoned
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Abstract
A system for forming printing features (10) on a printing plate includes a high energy density light source (20) that has an emission spectrum that includes actinic radiation and non-actinic radiation. A reflector assembly (22) directs light produced by the high energy density light source (20) in a light path. The printing plate (28) has a mask that defines locations of the printing features. A filter (24) is situated in the light path between the high energy density light source (20) and the printing plate (28), and is configured to remove the non-actinic radiation produced by the high energy density light source (20). A relative motion system (26/30, 32) is provided to cause the light emitted by the high energy density light source (20) to move with respect to the printing plate (28).
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