Laser configuration
View Patent ↗A laser configuration for machining a workpiece includes a plurality of laser light sources for introducing a laser radiation into a predeterminable working area. Some or all of the laser light sources are disposed on an arc of a circle.
1. A laser configuration for machining a workpiece, the laser configuration comprising:
a plurality of laser light sources being disposed in at least one row for introducing a laser radiation into a predetermined linear working area, said plurality of laser light sources including outer laser light sources; and
a first reflection element and a second reflection element each having a two-dimensional configuration;
said at least one row of laser light sources being aligned approximately orthogonal to said first reflection element and said second reflection element;
said first reflection element and said second reflection element configured to reflect said laser radiation emanating from said outer laser light sources into said working area; and
said first reflection element and said second reflection element being aligned opposite each other leaving a space between them so that said laser radiation propagates from said at least one row of laser light sources through said space between said first reflection element and said second reflection element and to said working area.
2. The laser configuration according to claim 1 , wherein said first reflection element and said second reflection element extend approximately between said laser light sources and the workpiece.
3. The laser configuration according to claim 1 , which further comprises a lens device disposed between said laser light sources and the workpiece for collimation or focusing of laser beams emitted by said laser light sources with regard to one direction.
4. The laser configuration according to claim 3 , wherein said one direction is perpendicular to an average direction of propagation of said laser beams.
5. The laser configuration according to claim 3 , wherein said lens device includes at least one cylindrical lens.
6. The laser configuration according to claim 3 , wherein said lens device includes a plurality of cylindrical lenses forming with one another an included angle unequal to 0° and unequal to 180°.
7. The laser configuration according to claim 6 , wherein said included angle is between 140° and 160°.
8. The laser configuration according to claim 3 , wherein a distance between said lens device and the workpiece is approximately 50 cm.
9. The laser configuration according to claim 1 , wherein said plurality of laser light sources includes a semiconductor laser.
10. The laser configuration according to claim 1 , wherein said plurality of laser light sources includes an optical fiber fed by at least one semiconductor laser.
11. The laser configuration according to claim 3 , which further comprises an at least partially laser-light-transmitting plate disposed between said lens device and the workpiece.
12. The laser configuration according to claim 1 , wherein said plurality of laser light sources are disposed in parallel rows.
13. The laser configuration according to claim 1 , which further comprises imaging optics disposed downstream of said at least one reflection element in a direction of propagation of said laser radiation, for imaging said laser radiation onto the workpiece.