SPECTRALLY CONTROLLED HIGH ENERGY DENSITY LIGHT SOURCE PHOTOPOLYMER EXPOSURE SYSTEM

摘要

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).