Beam forming device for laser diode arrays

A device for shaping laser radiation formed from partial beams spaced apart from one another in a first direction, being perpendicular to a propagation direction of the laser radiation, including for shaping the laser radiation that emerges from a laser diode bar, the device comprising:

• a substrate having a first refractive interface serving as an entrance surface, and a second refractive interface serving as an exit surface, at least one of said first or second interfaces is configured such that distances between the partial beams are smaller after passage through said substrate than before the passage through said substrate, said substrate rotating the partial beams, each of said first and second interfaces having a plurality of cylindrical lenses, spaced apart from one another with respect to the first direction and having cylindrical axes being inclined with respect to the first direction, said cylindrical lenses are configured such that the partial beams impinge centrally on at least one first of said cylindrical lenses disposed in a center of said first and second interfaces, whereas the partial beams impinge eccentrically on at least one second said cylindrical lenses disposed outside said center of said first and second interfaces, said first and second cylindrical lenses being different from one another.