Patent ID: 11878368
Assignee: 3D-MICROMAC AG
Field: Machine tools (Mechanical engineering)
Classification: CPC B  G | IPC B

Claim 14:
15. A laser processing system that produces a laser beam with a line-shaped beam cross section with a short axis and a long axis perpendicular thereto in a processing plane, comprising:
a laser beam source that produces a raw laser beam;
a beam expansion system disposed downstream of the laser beam source that receives the raw laser beam and produces an expanded laser beam;
a homogenization system disposed downstream of the beam expansion system that receives the expanded laser beam and produces a laser beam that is homogenized in relation to the light intensity distribution and has a line-shaped beam cross section in the processing plane,
wherein the homogenization system comprises a first homogenization arrangement that homogenizes along the short axis and a second homogenization arrangement for homogenization along the long axis,
each of the homogenization arrangements comprises optical elements that split the laser beam into a multiplicity of partial beams and a condenser system that superposes the partial beams in a superposition plane, and
the first homogenization arrangement comprises a first condenser system with at least one first mirror and the second homogenization arrangement comprises a second condenser system with at least one second mirror,
wherein the first condenser system produces a real intermediate image at a distance upstream of the processing plane and an imaging system that images the intermediate image onto the processing plane is arranged between the intermediate image and the processing plane.