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148 条记录 (耗时 0.046 秒)

    Simultaneous multiple layer curing in stereolithography
    1.
    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。

    Simultaneous multiple layer curing in stereolithography
    2.
    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
    7.
    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.

    Method and apparatus for identifying surface features associated with selected lamina of a three dimensional object being stereolithographically formed
    9.
    发明授权
    Method and apparatus for identifying surface features associated with selected lamina of a three dimensional object being stereolithographically formed 有权
    用于识别与立体光刻形成的三维物体的选定层相关联的表面特征的方法和装置

    公开(公告)号：US06029096A

    公开(公告)日：2000-02-22

    申请号：US265243

    申请日：1999-03-09

    申请人： Chris R. Manners ,  Dennis R. Smalley

    发明人： Chris R. Manners ,  Dennis R. Smalley

    IPC分类号： B29C41/12 ,  B29C67/00 ,  G06F19/00

    CPC分类号： B29C67/0066 ,  B29C41/12 ,  B29K2995/0073

    摘要： This invention relates to the stepwise layer-by-layer formation of a three-dimensional object through application of the principles of stereolithography and to the automatic detection of surface features of each layer of a three-dimensional object to manufacture parts more reliably, more accurately and more quickly. Automatic detection of trapped volume regions and size of solidified cross-sectional regions are disclosed. Automatic selection of recoating styles is made based on(1) the detected regions, (2) empirically or otherwise determined optimum recoating styles for different types of regions, and (3) a look-up table, other correlation system, or processor for associating recoating style information with laminae containing particular identified regions.

    摘要翻译： 本发明涉及通过应用立体光刻的原理逐层逐层地形成三维物体，并且涉及对三维物体的各层的表面特征的自动检测，以更可靠地，更准确地制造零件 并且更快。 公开了捕获体积区域的自动检测和凝固的横截面区域的尺寸。 根据（1）检测到的区域，（2）经验地或以其他方式确定不同类型区域的最佳重新布置样式，自动选择重新设计样式，以及（3）查找表，其他相关系统或用于关联的处理器 重写样式信息与包含特定区域的层。

    Method and apparatus for identifying surface features associated with selected lamina of a three-dimensional object being stereolithographically formed
    10.
    发明授权
    Method and apparatus for identifying surface features associated with selected lamina of a three-dimensional object being stereolithographically formed 失效
    用于识别与立体光刻形成的三维物体的选定层相关联的表面特征的方法和装置

    公开(公告)号：US5945058A

    公开(公告)日：1999-08-31

    申请号：US854950

    申请日：1997-05-13

    申请人： Chris R. Manners ,  Dennis R. Smalley

    发明人： Chris R. Manners ,  Dennis R. Smalley

    IPC分类号： B29C41/12 ,  B29C67/00 ,  B29C35/08 ,  B29C41/02 ,  B29C41/52

    CPC分类号： B29C67/0066 ,  B29C41/12 ,  B29K2995/0073

    摘要： This invention relates to the stepwise layer-by-layer formation of a three-dimensional object through application of the principles of stereolithography and to the automatic detection of surface features of each layer of a three-dimensional object to manufacture parts more reliably, more accurately and more quickly. Automatic detection of trapped volume regions and size of solidified cross-sectional regions are disclosed. Automatic selection of recoating styles is made based on (1) the detected regions,(2) empirically or otherwise determined optimum recoating styles for different types of regions, and (3) a look-up table, other correlation system, or processor for associating recoating style information with laminae containing particular identified regions.

    摘要翻译： 本发明涉及通过应用立体光刻的原理逐层逐层地形成三维物体，并且涉及对三维物体的各层的表面特征的自动检测，以更可靠地，更准确地制造零件 并且更快。 公开了捕获体积区域的自动检测和凝固的横截面区域的尺寸。 根据（1）检测到的区域，（2）经验地或以其他方式确定不同类型区域的最佳重新布置样式，自动选择重新设计样式，以及（3）查找表，其他相关系统或用于关联的处理器 重写样式信息与包含特定区域的层。