Abstract: A device for producing laser radiation includes a homogenizer device which can separately homogenize a plurality of groups of partial beams of laser radiation in such a way that each group of partial beams proceeding from the homogenizer device can produce a line-shaped intensity distribution in a work plane, with the distribution having flanks which drop steeply at the line ends. The device further includes a superposition device for superpositioning the groups of partial beams in such a way that a line-shaped or linear intensity distribution having a length longer than the length of each of the line-shaped intensity distributions of the groups of partial beams can be produced in a work plane, wherein the superposition device includes a lens array having a plurality of lenses.

Abstract: A device for homogenizing laser radiation contains a plurality of mirror elements which are arranged offset with respect to one another and at which the laser radiation to be homogenized can be reflected in such a way that it is split into a plurality of partial beams corresponding to the number of mirror elements. The partial beams have a path difference with respect to one another as a result of the reflection. The device further has a plurality of lens elements, each of which is respectively assigned to one of the mirror elements in such a way that a respective one of the partial beams can pass through one of the lens elements. A distance between each of the mirror elements and the lens elements assigned thereto is equal to the focal length of the respective lens element.

Abstract: A device for applying laser radiation to an at least partially reflective or transparent region or a workpiece disposed in a working area, with a laser light source for generating the laser radiation and optics for influencing the laser radiation, such that the radiation is transferred into the working area, wherein the optics comprise at least one mirror that can reflect a part of the laser radiation reflected in the working area or a part of the laser radiation having passed through the working area, such that said part of the laser radiation is at least partially fed hack into the working area.

Abstract: A device for producing laser radiation includes a homogenizer device which can separately homogenize a plurality of groups of partial beams of laser radiation in such a way that each group of partial beams proceeding from the homogenizer device can produce a line-shaped intensity distribution in a work plane, with the distribution having flanks which drop steeply at the line ends. The device further includes a superposition device for superpositioning the groups of partial beams in such a way that a line-shaped or linear intensity distribution having a length longer than the length of each of the line-shaped intensity distributions of the groups of partial beams can be produced in a work plane, wherein the superposition device includes a lens array having a plurality of lenses.

Abstract: A device for homogenizing laser radiation contains a plurality of mirror elements which are arranged offset with respect to one another and at which the laser radiation to be homogenized can be reflected in such a way that it is split into a plurality of partial beams corresponding to the number of mirror elements. The partial beams have a path difference with respect to one another as a result of the reflection. The device further has a plurality of lens elements, each of which is respectively assigned to one of the mirror elements in such a way that a respective one of the partial beams can pass through one of the lens elements. A distance between each of the mirror elements and the lens elements assigned thereto is equal to the focal length of the respective lens element.