Security Marking BDU

SMHH BDU for an excimer laser security marking application. Single shots mark moving targets in 6 parallel lanes. Shots delivered to individual BDU by time sharing galvo-driven distributor. In each SMHH BDU, polarisations are split, P used for imaging of the mark; S is further split into two components, polarizations rotated, energies controlled and superimposed on the mark in real time to generate a greyscale mark whose contrast adapts in a complex way to viewing situations. SMHH = Something Magic Happens Here