Trumpf Laser- Und Systemtechnik Gmbh

Trumpf Gmbh & Company

Martin Bea

Adolf Giesen

Joachim Schulz

Martin Huonker

Hartmut Zefferer

Helmut H&uuml;gel

A device for laser processing, in which the device includes: a laser including a resonator, the resonator being configured to generate a laser beam with a predetermined caustic during operation of the device; and an optical element to transform a laser beam generated by the resonator into a transformed laser beam having an annular intensity distribution in a plane perpendicular to a propagation direction of the transformed laser beam during operation of the device, in which the annular intensity distribution extends along the propagation direction of the transformed laser beam, and has, at a minimum diameter of a caustic of the transformed laser beam, a beam radius and a ring width corresponding to 50% of a maximum beam intensity in a radial direction of the transformed laser beam, and a ratio of the ring width to the beam radius is less than 0.6.

Device and method for laser processing

The invention relates to a device for influencing a laser beam by means of an adaptive mirror ( ) in the beam path, having a piezoelectric adjusting member ( ) arranged on the back of the mirror ( ), it being the case that, in order to achieve low-aberration deformation of the mirror ( ) for the purpose of influencing the divergence of the beam, there is provided between the adjusting member ( ) and the back ( ) of the mirror ( ) a pressure-transmitting device ( ) which acts on a large area of the deformable surface of the mirror ( ).

Device for influencing a laser beam

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Stuttgart, Germany

Martin Bea