IMAGING HEAD FOR 3D IMAGING

摘要

An imaging head for writing an image on a substrate includes an array of emitters comprised of groups of emitters; imaging lens that focuses light from each group onto the substrate; and wherein light from each group is focused at a different depth relative to a surface of the substrate. The imaging head can be used for 3D imaging of a flexographic plate by using multiple emitters configured to engrave on the same region of the flexographic plate during different time periods.