| 摘要 |
The invention relates to a device and a process for producing a three-dimensional object. The object (3) is built up on at least one vertically movable support (2). The horizontal extent of the support(s) defines a building zone (5). An input device (6, 8, 9) directs radiation from at least one radiation source in a controlled manner onto regions of an applied layer that correspond to the cross section of an object. The input device (6, 8, 9) directs a multiplicity of beams simultaneously onto different regions of the applied layer. Each of the beams is directed exclusively onto a subregion of the layer assigned to it, wherein the subregion is smaller than the overall building zone (5). All of the subregions together cover the overall building zone (5). The input device (6, 8, 9) is controlled by means of a control unit (10). At least one of the subregions overlaps partially, but not completely, with at least one other of the subregions. The sum total of the overlapping of overlapping areas formed by such overlaps comprises at least 10% of the total area of the building zone. |
