利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

10 条记录 (耗时 0.067 秒)

    Simultaneous multiple layer curing in stereolithography
    6.
    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。

    Method and apparatus for data manipulation and system control in a selective deposition modeling system
    7.
    发明授权
    Method and apparatus for data manipulation and system control in a selective deposition modeling system 有权
    在选择性沉积建模系统中用于数据操作和系统控制的方法和装置

    公开(公告)号：US06532394B1

    公开(公告)日：2003-03-11

    申请号：US09305094

    申请日：1999-05-04

    申请人： Jocelyn M. Earl ,  Chris R. Manners ,  Thomas A. Kerekes ,  Paul H. Marygold ,  Jeffrey S. Thayer

    发明人： Jocelyn M. Earl ,  Chris R. Manners ,  Thomas A. Kerekes ,  Paul H. Marygold ,  Jeffrey S. Thayer

    IPC分类号： G06F1900

    CPC分类号： G06T17/00 ,  B29C41/36 ,  B29C64/112 ,  B29C64/40 ,  B33Y50/00 ,  B33Y50/02

    摘要： A method of manipulating data in a method for forming a three-dimensional object layer by layer from an ink jettable, solidifiable material by providing data corresponding to a plurality of polygons defining the outer surfaces of a plurality of three-demiensional objects and providing sets of x, y, and z coordinates corresponding to each layer and identifying x and y coordinates with each z coordinate such that directional values and counter values are determined for each y coordinate in a first set of coordinates generated. A second set of y coordinates are generated according to a formula that permits the determined layers to be processed to form a three-dimensional object.

    摘要翻译： 一种用于通过提供与限定多个三维物体的外表面的多个多边形相对应的数据的可喷涂材料来逐层形成用于形成三维物体的方法中的数据的方法，并且提供一组 对应于每个层的x，y和z坐标，并且识别与每个z坐标的x和y坐标，使得在生成的第一组坐标中为每个y坐标确定方向值和计数器值。 根据允许所确定的层被处理以形成三维对象的公式来生成第二组y坐标。

    Rapid prototyping system and method with support region data processing
    8.
    发明授权
    Rapid prototyping system and method with support region data processing 失效
    快速原型系统和方法，支持区域数据处理

    公开(公告)号：US5943235A

    公开(公告)日：1999-08-24

    申请号：US722326

    申请日：1996-09-27

    申请人： Jocelyn M. Earl ,  Chris R. Manners ,  Thomas A. Kerekes ,  Paul H. Marygold ,  Jeffrey S. Thayer

    发明人： Jocelyn M. Earl ,  Chris R. Manners ,  Thomas A. Kerekes ,  Paul H. Marygold ,  Jeffrey S. Thayer

    IPC分类号： B29C41/36 ,  B29C67/00 ,  G06T17/00 ,  G06F19/00 ,  G06G7/64 ,  G06G7/66

    CPC分类号： G06T17/00 ,  B29C41/36 ,  B29C67/0059 ,  B29C67/0092

    摘要： Embodiments of the instant invention are directed to various methods and an apparatus for building a three-dimensional object represented by object data and support data using thermal stereolithography. Some preferred embodiments of the building techniques include multiple building materials, wherein, in some preferred embodiments, a different building material is used to build the object and the support. Embodiments of the methods for building three-dimensional objects include manipulation of the data, which is represented by a plurality of start/stop transitions to facilitate the computation of Boolean operations. In preferred embodiments, the object is built by selective disposition of the building materials in accordance with the object and support data.

    摘要翻译： 本发明的实施例涉及用于使用热立体光刻技术来构建由对象数据和支持数据表示的三维对象的各种方法和装置。 建筑技术的一些优选实施例包括多种建筑材料，其中在一些优选实施例中，使用不同的建筑材料来建造物体和支撑物。 用于构建三维对象的方法的实施例包括数据的操纵，其由多个开始/停止转换表示以便于布尔运算的计算。 在优选实施例中，通过根据对象和支持数据选择性地布置建筑材料来构建物体。

    Simultaneous multiple layer curing in stereolithography
    9.
    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 forming three-dimensional objects using line width compensation with small features retention
    10.
    发明授权
    Method and apparatus for forming three-dimensional objects using line width compensation with small features retention 有权
    使用具有小特征保持的线宽补偿来形成三维物体的方法和装置

    公开(公告)号：US06622062B1

    公开(公告)日：2003-09-16

    申请号：US09484984

    申请日：2000-01-18

    申请人： Jocelyn M. Earl ,  Chris R. Manners

    发明人： Jocelyn M. Earl ,  Chris R. Manners

    IPC分类号： G06F1900

    CPC分类号： G06T17/00 ,  B29C64/135 ,  B29C64/40 ,  B29K2995/0073 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

    摘要： Rapid prototyping and manufacturing (e.g. stereolithography) methods and apparatus are disclosed that form objects with enhanced accuracy and small feature retention. Techniques for offsetting cross-sectional boundary data to at least partially accommodate for solidification width induced in a medium by a beam of radiation are provided. One technique uses repeated small offsets to yield an effective offset of a desired amount. A second technique uses displacement vectors to determine where and to what extent to offset the boundary segments. The offset amount for each vertex is determined based on a combination of the (1) the vertex angle, and (2) a predefined variable offset criteria which is different for at least two predefined ranges of angles. A third technique converts a single boundary segments into a plurality of offset boundary segments when the single boundary segment can not undergo the full desired offset without violating another offsetting rule.

    摘要翻译： 公开了快速原型制造（例如立体光刻）方法和装置，其形成具有增强的精度和小特征保持性的物体。 提供了用于抵消横截面边界数据以至少部分地适应通过辐射束在介质中感应的凝固宽度的技术。 一种技术使用重复的小偏移量来产生期望量的有效偏移。 第二种技术使用位移向量来确定偏移边界段的位置和程度。 基于（1）顶角的组合来确定每个顶点的偏移量，和（2）对于至少两个预定义的角度范围是不同的预定变量偏移准则。 当单个边界段不经历完全期望的偏移而不违反另一个偏移规则时，第三种技术将单个边界段转换成多个偏移边界段。