LASER BEAM FOCUSING DEVICE Russian patent published in 2004 - IPC

FIELD: laser engineering; focusing systems for high-power laser beams in laser process complex manufacture.]

SUBSTANCE: proposed device has input and output axicons whose peripheral reflecting surfaces are mounted on case. Device is also provided with cooling agent feeder, two nozzles, rod, and pylons; inner reflecting surfaces of axicons are mounted on rod, the latter is coupled with case by means of pylons; this hollow rod is divided into two compartments with tight partition between them. Nozzles are secured on side surfaces of tight partition and disposed in compartments to form channels for passing cooling agent, their outlets being directed toward inner reflecting surfaces of axicons. One pylon has channels whose inlets communicate with cooling agent feeder and outlets are hydraulically coupled with compartments which are hydraulically coupled with cooling agent outlet channel provided in second and/or third pylon.

EFFECT: enhanced beam density and focusing radiation power (energy).

7 cl, 3 dwg