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    • 1. 发明申请
    • METHOD AND APPARATUS FOR PRODUCING THREE-DIMENSIONAL OBJECTS
    • 用于生产三维物体的方法和装置
    • WO2009084991A1
    • 2009-07-09
    • PCT/SE2008/000007
    • 2008-01-03
    • ARCAM ABJONASSON, DanielLARSSON, MorganACKELID, UlfSNIS, AndersLOCK, Tomas
    • JONASSON, DanielLARSSON, MorganACKELID, UlfSNIS, AndersLOCK, Tomas
    • B22F3/105B29C67/00
    • B29C64/20B22F3/1055B22F2003/1056B22F2003/1057B22F2999/00B29C64/153B29C64/386B29C64/393B29L2009/00B33Y30/00Y02P10/295B22F2203/03
    • The invention concerns a method for producing three-dimensional objects (6) layer by layer using a powdery material which can be solidified by irradiating it with a beam (4) of charged particles, which method comprises the following steps: successive application of powder layers to a working area (5), and fusing together successive layers of said three-dimensional object (6) by successively irradiating the powdery layers with said beam (4). The invention is characterized in that it comprises the following steps: determining whether lifting of powdery material from the working area (5) occurs using a powder- lifting detection device (10, 10a, 10b, 10c, 1Od, 1Oe) capable of generating a signal (S) upon detection of lifting of powdery material from the working area (5), and interrupting the irradiation of at least a part of the working area (5) where powder lifting occurs using the signal (S) generated by the powder- lifting detection device (10, 10a, 10b, 10c, 10d, 1Oe) for automatically trigging the interruption. The invention also concerns an apparatus (1) for producing three-dimensional objects (6) layer by layer using a powdery material which can be solidified by irradiating it with a beam (4) of charged particles, said apparatus (1) comprising means for successive application of powder layers to a work table, and a radiation gun (3) for delivering said beam (4) of charged particles, wherein the inventive apparatus (1) comprises a powder- lifting detection device (10, 10a, 10b, 10c, 10d, 10e) capable of generating a signal (S) upon detection of lifting of powdery material from the working area (5).
    • 本发明涉及一种使用可通过用带电粒子束(4)照射固化的粉末材料逐层生产三维物体(6)的方法,该方法包括以下步骤:连续施加粉末层 到工作区域(5),并且通过用所述光束(4)连续照射粉末层,将所述三维物体(6)的连续层熔合在一起。 本发明的特征在于包括以下步骤:确定是否使用能够产生粉末材料的粉末提升检测装置(10,10a,10b,10c,10d,10e)从工作区域(5)提起粉末材料 在检测到来自工作区域(5)的粉末材料的提升时,发出信号(S),并且使用由粉末状产生的信号(S)中断发生粉末升起的工作区域(5)的至少一部分的照射, 提升检测装置(10,10a,10b,10c,10d,10e),用于自动触发中断。 本发明还涉及一种用于使用粉末材料逐层生产三维物体(6)的装置(1),所述粉末材料可以通过用带电粒子束(4)照射而固化,所述装置(1)包括用于 将粉末层连续地施加到工作台上,以及用于输送所述带电粒子束(4)的辐射枪(3),其中本发明的装置(1)包括粉末提升检测装置(10,10a,10b,10c ,10d,10e),其能够在检测到来自所述工作区域(5)的粉状材料的提升时产生信号(S)。
    • 4. 发明申请
    • SLM DIRECT WRITER
    • SLM直接写
    • WO2007071408A1
    • 2007-06-28
    • PCT/EP2006/012335
    • 2006-12-20
    • MICRONIC LASER SYSTEMS ABLOCK, Tomas
    • LOCK, Tomas
    • G03F7/20
    • G03F7/70291G03F7/70208G03F7/70275
    • The present invention relates to an apparatus (100) for patterning a workpiece arranged at an image plane (150) and sensitive to electromagnetic radiation, comprising a source (142) emitting electromagnetic radiation onto an object plane (160) and at least two spatial light modulators each comprising numerous of object pixels, adapted to receive the electromagnetic radiation at the object plane and to relay the electromagnetic radiation toward the workpiece, wherein the electromagnetic radiation is split into at least two beams, which beams will impinge on different spatial light modulators, by a beam splitting device arranged at an optical plane between the spatial light modulators and an illuminator pupil or a conjugate optical plane. The invention also relates to a method for patterning a workpiece with a plurality of spatial light modulators .
    • 本发明涉及一种用于将布置在图像平面(150)上并对电磁辐射敏感的工件图案化的设备(100),其包括将电磁辐射发射到物平面(160)上的源(142)和至少两个空间光 每个调制器包括许多对象像素,适于在物平面处接收电磁辐射并将电磁辐射中继到工件,其中电磁辐射被分成至少两个光束,该光束将撞击在不同的空间光调制器上, 通过布置在空间光调制器与照明器光瞳或共轭光学平面之间的光学平面处的分束装置。 本发明还涉及一种用多个空间光调制器对工件图案化的方法。