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公开(公告)号:US5481470A
公开(公告)日:1996-01-02
申请号:US259333
申请日:1994-06-13
申请人: David E. Snead , Dennis R. Smalley , Adam L. Cohen , Joseph W. Allison , Thomas J. Vorgitch , Thomas P. Chen
发明人: David E. Snead , Dennis R. Smalley , Adam L. Cohen , Joseph W. Allison , Thomas J. Vorgitch , Thomas P. Chen
IPC分类号: B29C35/08 , B29C67/00 , B29K105/24 , G01J1/42 , G03C9/08 , G03F7/00 , G03F7/20 , G06F17/50 , G06T17/00 , G06T17/10 , G06T17/20 , G06F19/00
CPC分类号: B29C67/0066 , B29C67/0062 , B29C67/0088 , B29C67/0092 , G01J1/4257 , G03F7/0037 , G03F7/70416 , G06T17/00 , G06T17/10 , G06T17/20 , B29K2995/0073 , G05B2219/49013
摘要: A method of and apparatus for slicing a three-dimensional object representation into a plurality of layer representations is described, wherein the layer representations are subsequently used to form the object layer-by-layer according to the principles of stereolithography. If not already provided in the object representation, a plurality of layer boundary representations are first formed, and then the boolean difference of successive layer boundary representations are computed to derive boundaries of up and down-facing regions, enabling different cure parameters to be specified for these different regions.
摘要翻译: 描述用于将三维对象表示分割成多个层表示的方法和装置,其中随后根据立体光刻原理逐层地形成层表示。 如果没有在对象表示中提供,则首先形成多个层边界表示,然后计算连续层边界表示的布尔差以导出上下区域的边界,从而为 这些不同的地区。
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公开(公告)号:US5256340A
公开(公告)日:1993-10-26
申请号:US906207
申请日:1992-06-25
申请人: Joseph W. Allison , Jan Richter , Craig M. Childers , Dennis R. Smalley , Charles W. Hull , Paul F. Jacobs
发明人: Joseph W. Allison , Jan Richter , Craig M. Childers , Dennis R. Smalley , Charles W. Hull , Paul F. Jacobs
IPC分类号: B29C67/00 , B29C67/02 , B44B1/00 , G01J1/42 , G03F7/00 , G03F7/20 , G06T17/00 , G06T17/10 , G06T17/20 , B29C35/08 , B29C41/02
CPC分类号: B29C67/0066 , B29C67/0092 , B29C67/02 , B44B1/006 , G01J1/4257 , G03F7/0037 , G03F7/70416 , G06T17/00 , G06T17/10 , G06T17/20 , G05B2219/49013 , Y10S264/59
摘要: An improved method for stereolithographically forming a three-dimensional object wherein ordinarily solidified internal walls of the object remain at least partially unsolidified. Any unsolidified medium within the object can be drained from the internal walls of the object prior to post-curing so that a hollow three-dimensional object is formed. The object is formed on a layer by layer basis with the internal portion of each layer of the object formed as a grid of solidified portions and unsolidified portions wherein the solidified and unsolidified portions are different on each layer. Objects formed in this manner can be used as patterns in investment casting.
摘要翻译: 用于立体光刻形成三维物体的改进方法,其中物体的通常凝固的内壁保持至少部分地不固化。 物体内的任何未固化的介质可以在后固化之后从物体的内壁排出,从而形成中空的三维物体。 该物体是以形成为固化部分网格的每个物体的内部部分和未固化部分逐层形成的,其中固化和非固化部分在每层上是不同的。 以这种方式形成的物体可以用作熔模铸造中的图案。
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公开(公告)号:US5238639A
公开(公告)日:1993-08-24
申请号:US939549
申请日:1992-08-31
IPC分类号: B29C67/00
CPC分类号: B29C67/0066 , B29C67/0092 , G05B2219/49013
摘要: A method and apparatus for eliminating or substantially reducing curling effects in stereolithographically formed objects. Synergistic stimulation is applied to a curable material to form a three dimensional object through the build up of successive layers. Curling between successive layers is eliminated or substantially reduced by curing a balancing layer in relation to a balanced layer such that reverse curl of the balanced layer caused by the balancing layer offsets or negates normal curl of the balanced layer caused by the balancing layer.
摘要翻译: 用于消除或显着降低立体光刻形成物体中的卷曲效应的方法和装置。 协同刺激被施加到可固化材料上以通过连续层的积聚形成三维物体。 通过使平衡层相对于平衡层固化平衡层,消除或大幅度地降低连续层之间的卷曲,使得由平衡层引起的平衡层的反向卷曲抵消或消除由平衡层引起的平衡层的正常卷曲。
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公开(公告)号:US5182055A
公开(公告)日:1993-01-26
申请号:US702031
申请日:1991-05-17
申请人: Joseph W. Allison , Jan Richter , Craig M. Childers , Dennis R. Smalley , Charles W. Hull , Paul F. Jacobs
发明人: Joseph W. Allison , Jan Richter , Craig M. Childers , Dennis R. Smalley , Charles W. Hull , Paul F. Jacobs
CPC分类号: B29C67/0066 , B29C67/0092 , B29C67/02 , G01J1/4257 , G03F7/0037 , G03F7/70375 , G03F7/70416 , G06T17/00 , G06T17/10 , G06T17/20 , G05B2219/49013 , Y10S264/59
摘要: An improved method for stereolithographically making an object by alternating the order in which similar sets of vectors are exposed over two or more layers. In another method, a pattern of tightly packed hexagonal tiles are drawn. Each tile is isolated from its neighboring tiles by specifying breaks of unexposed material between the tiles. Using an interrupted scan method, vectors are drawn with periodic breaks along their lengths. In another method, modulator and scanning techniques are used to reduce exposure problems associated with the acceleration and deceleration of the scanning system when jumping between vectors or changing scanning directions.
摘要翻译: 通过交替在两个或多个层上暴露相似的矢量集合的顺序来立体定向制作物体的改进方法。 在另一种方法中,绘制紧密包装的六边形瓦片的图案。 通过指定瓷砖之间未曝光材料的断裂,每个瓷砖与其相邻的瓷砖隔离。 使用中断的扫描方法,沿其长度绘制周期性断点的向量。 在另一种方法中,调制器和扫描技术用于在向量之间跳跃或改变扫描方向时减少与扫描系统的加速和减速有关的暴露问题。
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公开(公告)号:US06333741B1
公开(公告)日:2001-12-25
申请号:US09215793
申请日:1998-12-18
申请人: David E. Snead , Dennis R. Smalley , Adam L. Cohen , Joseph W. Allison , Thomas J. Vorgitch , Thomas P. Chen
发明人: David E. Snead , Dennis R. Smalley , Adam L. Cohen , Joseph W. Allison , Thomas J. Vorgitch , Thomas P. Chen
IPC分类号: G06T1700
CPC分类号: G06T17/20 , B29C64/124 , B29C64/135 , B29C64/386 , B29C64/40 , B29K2995/0073 , B33Y10/00 , B33Y50/00 , B33Y50/02 , G01J1/4257 , G03F7/0037 , G03F7/70416 , G05B2219/49013 , G06T17/00 , G06T17/10
摘要: A method of and apparatus for slicing a three-dimensional object representation into a plurality of layer representations is described, wherein the layer representations are subsequently used to form the object layer-by-layer according to the principles of stereolithography. If not already provided in the object representation, a plurality of layer boundary representations are first formed, and then the boolean difference of successive layer boundary representations are computed to derive boundaries of up and down-facing regions, enabling different cure parameters to be specified for these different regions.
摘要翻译: 描述用于将三维对象表示分割成多个层表示的方法和装置,其中随后根据立体光刻原理逐层地形成层表示。 如果没有在对象表示中提供,则首先形成多个层边界表示,然后计算连续层边界表示的布尔差以导出上下区域的边界,从而为 这些不同的地区。
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公开(公告)号:US6036911A
公开(公告)日:2000-03-14
申请号:US14367
申请日:1998-01-27
申请人: Joseph W. Allison , Jan Richter , Craig Matthew Childers , Dennis R. Smalley , Charles W. Hull , Paul F. Jacobs
发明人: Joseph W. Allison , Jan Richter , Craig Matthew Childers , Dennis R. Smalley , Charles W. Hull , Paul F. Jacobs
CPC分类号: G06T17/20 , B29C67/0092 , G01J1/4257 , G03F7/70416 , G06T15/503 , G06T17/10 , G05B2219/49013
摘要: An improved method for stereolithographically making an object by alternating the order in which similar sets of vectors are exposed over two or more layers. In another method, a pattern of tightly packed hexagonal tiles are drawn. Each tile is isolated from its neighboring tiles by specifying breaks of unexposed material between the tiles. Using an interrupted scan method, vectors are drawn with periodic breaks along their lengths. In another method, modulator and scanning techniques are used to reduce exposure problems associated with the acceleration and deceleration of the scanning system when jumping between vectors or changing scanning directions.
摘要翻译: 通过交替在两个或多个层上暴露相似的矢量集合的顺序来立体定向制作物体的改进方法。 在另一种方法中,绘制紧密包装的六边形瓦片的图案。 通过指定瓷砖之间未曝光材料的断裂,每个瓷砖与其相邻的瓷砖隔离。 使用中断的扫描方法,沿其长度绘制周期性断点的向量。 在另一种方法中,调制器和扫描技术用于在向量之间跳跃或改变扫描方向时减少与扫描系统的加速和减速有关的暴露问题。
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公开(公告)号:US5854748A
公开(公告)日:1998-12-29
申请号:US475730
申请日:1995-06-07
申请人: David E. Snead , Dennis R. Smalley , Adam L. Cohen , Joseph W. Allison , Thomas J. Vorgitch , Thomas P. Chen
发明人: David E. Snead , Dennis R. Smalley , Adam L. Cohen , Joseph W. Allison , Thomas J. Vorgitch , Thomas P. Chen
IPC分类号: B29C35/08 , B29C67/00 , B29K105/24 , G01J1/42 , G03C9/08 , G03F7/00 , G03F7/20 , G06F17/50 , G06T17/00 , G06T17/10 , G06T17/20 , G06F19/00
CPC分类号: B29C67/0066 , B29C67/0062 , B29C67/0088 , B29C67/0092 , G01J1/4257 , G03F7/0037 , G03F7/70416 , G06T17/00 , G06T17/10 , G06T17/20 , B29K2995/0073 , G05B2219/49013
摘要: A method of and apparatus for slicing a three-dimensional object representation into a plurality of layer representations is described, wherein the layer representations are subsequently used to form the object layer-by-layer according to the principles of stereolithography. If not already provided in the object representation, a plurality of layer boundary representations are first formed, and then the boolean difference of successive layer boundary representations are computed to derive boundaries of up and down-facing regions, enabling different cure parameters to be specified for these different regions.
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公开(公告)号:US5321622A
公开(公告)日:1994-06-14
申请号:US606191
申请日:1990-10-30
申请人: David E. Snead , Dennis R. Smalley , Adam L. Cohen , Joseph W. Allison , Thomas J. Vorgitch , Thomas P. Chen
发明人: David E. Snead , Dennis R. Smalley , Adam L. Cohen , Joseph W. Allison , Thomas J. Vorgitch , Thomas P. Chen
IPC分类号: B29C35/08 , B29C67/00 , B29K105/24 , G01J1/42 , G03C9/08 , G03F7/00 , G03F7/20 , G06F17/50 , G06T17/00 , G06T17/10 , G06T17/20 , G06F15/46
CPC分类号: B29C67/0066 , B29C67/0062 , B29C67/0088 , B29C67/0092 , G01J1/4257 , G03F7/0037 , G03F7/70416 , G06T17/00 , G06T17/10 , G06T17/20 , B29K2995/0073 , G05B2219/49013
摘要: A method of and apparatus for slicing a three-dimensional object representation into a plurality of layer representations is described, wherein the layer representations are subsequently used to form the object layer-by-layer according to the principles of stereolithography. If not already provided in the object representation, a plurality of layer boundary representations are first formed, and then the boolean difference of successive layer boundary representations are computed to derive boundaries of up and down-facing regions, enabling different cure parameters to be specified for these different regions.
摘要翻译: 描述用于将三维对象表示分割成多个层表示的方法和装置,其中随后根据立体光刻原理逐层地形成层表示。 如果没有在对象表示中提供,则首先形成多个层边界表示,然后计算连续层边界表示的布尔差以导出上下区域的边界,从而为 这些不同的地区。
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公开(公告)号:US5609813A
公开(公告)日:1997-03-11
申请号:US475714
申请日:1995-06-07
IPC分类号: B29C67/00 , B29C67/02 , B44B1/00 , G01J1/42 , G03F7/00 , G03F7/20 , G06T17/00 , G06T17/10 , G06T17/20 , B29C35/08 , B29C41/02
CPC分类号: B29C67/02 , B29C67/0066 , B29C67/0092 , B44B1/006 , G01J1/4257 , G03F7/0037 , G03F7/70416 , G06T17/00 , G06T17/10 , G06T17/20 , G05B2219/49013
摘要: An improved method for stereolithographically making an object by alternating the order in which similar sets of vectors are exposed over two or more layers. In another method, a pattern of tightly packed hexagonal tiles are drawn. Each tile is isolated from its neighboring tiles by specifying breaks of unexposed material between the tiles. Using an interrupted scan method, vectors are drawn with periodic breaks along their lengths. In another method, modulator and scanning techniques are used to reduce exposure problems associated with the acceleration and deceleration of the scanning system when jumping between vectors or changing scanning directions.
摘要翻译: 通过交替在两个或多个层上暴露相似的矢量集合的顺序来立体定向制作物体的改进方法。 在另一种方法中,绘制紧密包装的六边形瓦片的图案。 通过指定瓷砖之间未曝光材料的断裂,每个瓷砖与其相邻的瓷砖隔离。 使用中断的扫描方法,沿其长度绘制周期性断点的向量。 在另一种方法中,调制器和扫描技术用于在向量之间跳跃或改变扫描方向时减少与扫描系统的加速和减速有关的暴露问题。
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