| 摘要 |
PCT No. PCT/EP93/03724 Sec. 371 Date Sep. 20, 1994 Sec. 102(e) Date Sep. 20, 1994 PCT Filed Dec. 30, 1993 PCT Pub. No. WO94/16875 PCT Pub. Date Aug. 4, 1994.A method for producing an object by layerwise solidification of the object by means of electromagnetic radiation is expedited by simultaneously solidifying the material of a layer at a plurality of places. An apparatus for carrying out the method comprises an irradiation device (11, 12, 14, 15, 16) generating a plurality of beams (20, 21, 22) as well as a control device (7, 17, 18, 19) directing each of the plurality of beams independently to different regions of the layer (8a . . . 8d).
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