BEAM FORMATION UNIT COMPRISING TWO AXICON LENSES, AND DEVICE COMPRISING ONE SUCH BEAM FORMATION UNIT FOR INTRODUCING RADIATION ENERGY INTO A WORKPIECE CONSISTING OF A WEAKLY-ABSORBENT MATERIAL

摘要

arrangementthe dumping of radiant energy in a werkst & t.; ck (14)a weak absorbent material with a radiation source(6) and a resonatoreinheit (5), a first resonatorspiegel comprehensively(13), and a second resonatorspiegel (19) between which thewerkst & t.; ck(14) is fixed, are characterized by the fact that the resonatoreinheit(5) a strahlformungseinheit (4) vorgeordnet, which is a ringf & all; rmiges strahlenb & professional; trade with athe central area is formed and the first resonatorspiegel strahlungsfreien(13) in the strahlungsfreien central area behind the first focus point(8) says that a sammellinse (12) is present, the thefirst resonatorspiegel (13) surrounds and the impact strahlenb & professional; trade inthe werkst & t.; ck(14) to a second focal point (15) focuses that thesecond resonatorspiegel (19) in a strahlungsfreien corporatebehind the second focal point (15) surrounded by a fokussierspiegel(18), the second focal point (15) upcoming divergentstrahlenb & professional; tradein a konvergierendes strahlenb & professional; trade formsand a mirror (16) reflects the between the fokussierspiegel(18) and the...