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    Simultaneous multiple layer curing in stereolithography
    6.
    发明授权
    Simultaneous multiple layer curing in stereolithography 失效

    公开(公告)号：US5999184A

    公开(公告)日：1999-12-07

    申请号：US428951

    申请日：1995-04-25

    申请人： Dennis R. Smalley ,  Thomas J. Vorgitch ,  Jocelyn M. Earl

    发明人： Dennis R. Smalley ,  Thomas J. Vorgitch ,  Jocelyn M. Earl

    IPC分类号： B29C67/00 ,  G06T17/00 ,  G06T17/40

    CPC分类号： G06T17/00 ,  B29C67/0066 ,  B29C67/0092 ,  G05B2219/49013

    摘要： A method and apparatus for making high resolution objects by stereolithography utilizing low resolution materials which are limited by their inability to form unsupported structures of desired thinness and/or their inability to form coatings of desired thinness. Data manipulation techniques, based on layer comparisons, are used to control exposure in order to delay solidification of the material on at least portions of at least some cross-sections until higher layers of material are deposited so as to allow down-facing features of the object to be located at a depth in the building material which is equal to or exceeds a minimum cure depth that can effectively be used for solidifying these features. Similar data manipulations are used to ensure minimum reliable coating thicknesses exist, above previously solidified material, before attempting solidification of a next layer. In addition, horizontal comparison techniques are used to provide enhanced cross-sectional data for use in forming the object. Further, several techniques for automatically performing Z-error correction through the manipulation of a three-dimensional object representation are described.

    Simultaneous multiple layer curing in stereolithography
    7.
    发明授权
    Simultaneous multiple layer curing in stereolithography 失效
    同时多层固化立体光刻

    公开(公告)号：US5597520A

    公开(公告)日：1997-01-28

    申请号：US233027

    申请日：1994-04-25

    申请人： Dennis R. Smalley ,  Thomas J. Vorgitch ,  Chris R. Manners ,  Charles W. Hull ,  Stacie L. VanDorin

    发明人： Dennis R. Smalley ,  Thomas J. Vorgitch ,  Chris R. Manners ,  Charles W. Hull ,  Stacie L. VanDorin

    IPC分类号： B29C67/00 ,  G06T17/00 ,  B29C35/08 ,  B29C41/02 ,  B29C41/52

    CPC分类号： G06T17/00 ,  B29C67/0092 ,  G05B2219/49013

    摘要： A method and apparatus for making high resolution objects by stereolithography utilizing low resolution materials which are limited by their inability to form unsupported structures of desired thinness and/or their inability to form coatings of desired thinness. Data manipulation techniques, based on layer comparisons, are used to control exposure in order to delay solidification of the material on at least portions of at least some cross-sections until higher layers of material are deposited so as to allow down-facing features of the object to be located at a depth in the building material which is equal to or exceeds a minimum cure depth that can effectively be used for solidifying these features. Similar data manipulations are used to ensure minimum reliable coating thicknesses exist, above previously solidified material, before attempting solidification of a next layer. In addition, horizontal comparison techniques are used to provide enhanced cross-sectional data for use in forming the object.

    摘要翻译： 使用低分辨率材料通过立体光刻技术制造高分辨率物体的方法和装置，其受到不能形成所需薄度的无支撑结构和/或不能形成所需薄度的涂层的限制。 基于层比较的数据处理技术被用于控制曝光，以便在至少一些横截面的至少部分上延迟材料的固化，直到沉积更高层的材料，以便允许下层的特征 物体位于建筑材料的深度上，其等于或超过可以有效地用于固化这些特征的最小固化深度。 在尝试凝固下一层之前，使用类似的数据操作来确保存在最小可靠的涂层厚度，以上固化的材料。 此外，使用水平比较技术来提供用于形成物体的增强的横截面数据。

    Simultaneous multiple layer curing in stereolithography
    8.
    发明授权
    Simultaneous multiple layer curing in stereolithography 失效
    同时多层固化立体光刻

    公开(公告)号：US5192469A

    公开(公告)日：1993-03-09

    申请号：US606802

    申请日：1990-10-30

    申请人： Dennis R. Smalley ,  Thomas J. Vorgitch

    发明人： Dennis R. Smalley ,  Thomas J. Vorgitch

    IPC分类号： B29C67/00

    CPC分类号： B29C67/0092 ,  G05B2219/49013

    摘要： A method and apparatus for making an object by stereolithography from layers of a medium solidifiable upon exposure to synergistic stimulation by selecting an area element of a first layer of medium. The depth of the medium within the object underlying the area element is determined and compared to the depth to the minimum solidification depth of the medium. The area element is exposed to solidifying synergistic stimulation only if the depth of the medium equals or exceeds the minimum solidification depth. A next layer is created over the first layer without exposing the first layer to solidifying synergistic stimulation, if the depth is less than the minimum solidification depth. The layers may have a thickness selected such that the minimum solidification depth is a integer multiple of the layer thickness.

    摘要翻译： 一种用于通过立体光刻法从介质层中暴露于协同刺激可固化的方法和装置，通过选择第一层介质的面积元素。 确定在区域元素下面的对象内的介质的深度并将其与介质的最小凝固深度的深度进行比较。 只有当介质的深度等于或超过最小凝固深度时，该区域元件才能暴露于固化协同刺激。 如果深度小于最小凝固深度，则在第一层上创建下一层而不暴露第一层以固化协同刺激。 这些层可以具有选择的厚度，使得最小凝固深度是层厚度的整数倍。

    Simultaneous multiple layer curing in stereolithography
    9.
    发明授权
    Simultaneous multiple layer curing in stereolithography 失效
    同时多层固化立体光刻

    公开(公告)号：US06366825B1

    公开(公告)日：2002-04-02

    申请号：US09289842

    申请日：1999-04-12

    申请人： Dennis R. Smalley ,  Thomas J. Vorgitch ,  Chris R. Manners ,  Jocelyn M. Earl ,  Bryan J. L. Bedal ,  Charles W. Hull ,  Stacie L. VanDorin

    发明人： Dennis R. Smalley ,  Thomas J. Vorgitch ,  Chris R. Manners ,  Jocelyn M. Earl ,  Bryan J. L. Bedal ,  Charles W. Hull ,  Stacie L. VanDorin

    IPC分类号： G06F1900

    CPC分类号： G06F19/00 ,  B29C64/135 ,  B29C64/40 ,  B33Y50/00 ,  G05B2219/49013 ,  G06T17/00

    摘要： A method and apparatus for making high resolution objects by stereolithography utilizing low resolution materials which are limited by their inability to form unsupported structures of desired thinness and/or their inability to form coatings of desired thinness. Data manipulation techniques, based on layer comparisons, are used to control exposure in order to delay solidification of the material on at least portions of at least some cross-sections until higher layers of material are deposited so as to allow down-facing features of the object to be located at a depth in the building material which is equal to or exceeds a minimum cure depth that can effectively be used for solidifying these features. Similar data manipulations are used to ensure minimum reliable coating thicknesses exist, above previously solidified material, before attempting solidification of a next layer. In addition, horizontal comparison techniques are used to provide enhanced cross-sectional data for use in forming the object. Further, several techniques for automatically performing Z-error correction through the manipulation of a three-dimensional object representation are described.

    摘要翻译： 使用低分辨率材料通过立体光刻技术制造高分辨率物体的方法和装置，其受到不能形成所需薄度的无支撑结构和/或不能形成所需薄度的涂层的限制。 基于层比较的数据处理技术被用于控制曝光，以便在至少一些横截面的至少部分上延迟材料的固化，直到沉积更高层的材料，以便允许下层的特征 物体位于建筑材料的深度上，其等于或超过可以有效地用于固化这些特征的最小固化深度。 在尝试凝固下一层之前，使用类似的数据操作来确保存在最小可靠的涂层厚度，以上固化的材料。 此外，使用水平比较技术来提供用于形成物体的增强的横截面数据。 此外，描述了通过操纵三维对象表示来自动执行Z误差校正的几种技术。