Printing plate exposure method with compensation of exposure beam intensity variations dependent on alignment of reflection surface of optical deflection device

摘要

The exposure method uses an inner drum illumination device with at least one light source providing a linearly polarized laser beam (2) and a rotating optical deflection device (1) with at least one reflection surface for the laser beam. The exposure intensity variations in the laser beam dependent on the alignment of the reflection surface are compensated by modulation of the intensity of the emitted laser beam. An Independent claim for exposure of a printing plate is also included.