Patent ID: 9221100
Filing Date: 2015-12-29
Classification: B22F,B23K,B29C,B33Y,C04B,Y02P

Abstract:
1. An optical irradiation unit for a plant for producing workpieces by irradiating powder layers of a raw material powder with laser radiation, comprising: optical components for guiding and focusing a beam path of a first laser beam; an optical splitting unit for splitting the first laser beam into at least two laser sub-beams having an intensity which in each case is equal and differs from the intensity of the first laser beam, wherein the optical splitting unit produces a first beam profile of the first laser beam by splitting the first laser beam into the at least two laser sub-beams; and an optical coupling unit configured to couple a second laser beam with a wavelength differing from a wavelength of the first laser beam into the beam path of the first laser beam.