THREE-DIMENSIONAL IMAGING OF FLEXOGRAPHIC MEDIA

摘要

A method for three-dimensional imaging on a surface of a flexible media mounted on a cylindrical drum (104) or sleeve by laser ablation includes mounting the flexible media on the cylindrical drum; measuring a distance to the surface structure of the flexible media with a displacement sensor (112) correlated with drum and carriage (210) position; sending the distance measurement and the drum and carriage position to a computer (236) processing the distance measurement and drum and carriage position to compute a change in focus of an optical system; changing a focus of the optical system; and imaging the flexible media with the imaging optics (216).