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11. 发明授权

US5651934A Recoating of stereolithographic layers 失效
标题翻译：重新制备立体光刻层
公开(公告)号：US5651934A
公开(公告)日：1997-07-29
申请号：US402553
申请日：1995-03-13
申请人： Thomas A. Almquist , Charles W. Hull , Borzo Modrek , Paul F. Jacobs , Charles W. Lewis , Adam L. Cohen , Stuart T. Spence , Hop D. Nguyen
发明人： Thomas A. Almquist , Charles W. Hull , Borzo Modrek , Paul F. Jacobs , Charles W. Lewis , Adam L. Cohen , Stuart T. Spence , Hop D. Nguyen
IPC分类号： B29C35/08 , B29C41/02 , B29C41/12 , B29C41/52 , B29C67/00 , G01F23/292 , G01F23/36 , G05D9/12
CPC分类号： G05D9/12 , B29C41/12 , B29C67/0066 , G01F23/2921 , G01F23/366 , B29K2995/0073 , Y10T156/17
摘要： Apparatus and method for stereolithographically forming a three-dimensional object includes a vessel for holding a building material and a smoothing member for forming a uniform coating over a previously formed layer of the object. The smoothing member has a plurality of blades. The smoothing member is swept over a previously formed layer of the object, in at least two directions. Different clearances between the lower surface of the smoothing member and the upper surface of the previously formed layer are used to provide a uniform coating for a subsequent layer over the previously formed layer. The sweeping velocity of the smoothing member can be varied. Retractable needles are attached to the smoothing member for adjusting a blade gap between a lower surface of the smoothing member and the surface of the building material.
摘要翻译：用于立体取向形成三维物体的装置和方法包括用于保持建筑材料的容器和用于在预先形成的物体层上形成均匀涂层的平滑构件。平滑部件具有多个叶片。平滑部件在至少两个方向上扫过物体的先前形成的层。使用平滑构件的下表面和先前形成的层的上表面之间的不同间隙为先前形成的层上的后续层提供均匀的涂层。平滑部件的扫掠速度可以变化。可伸缩针附接到平滑构件，用于调节平滑构件的下表面和建筑材料的表面之间的叶片间隙。

12. 发明授权

US5184307A Method and apparatus for production of high resolution three-dimensional objects by stereolithography 失效
标题翻译：用于通过立体成像生产高分辨率三维物体的方法和装置
公开(公告)号：US5184307A
公开(公告)日：1993-02-02
申请号：US331644
申请日：1989-03-31
申请人： Charles W. Hull , Stuart T. Spence , David J. Albert , Dennis R. Smalley , Richard A. Harlow , Phil Stinebaugh , Harry L. Tarnoff , Hop D. Nguyen , Charles W. Lewis , Tom J. Vorgitch , David Z. Remba
发明人： Charles W. Hull , Stuart T. Spence , David J. Albert , Dennis R. Smalley , Richard A. Harlow , Phil Stinebaugh , Harry L. Tarnoff , Hop D. Nguyen , Charles W. Lewis , Tom J. Vorgitch , David Z. Remba
IPC分类号： B29C67/00 , G01J1/42 , G03F7/00 , G03F7/20 , G06T17/00 , G06T17/10 , G06T17/20
CPC分类号： G06T17/20 , B29C67/0066 , B29C67/0092 , G01J1/4257 , G03F7/0037 , G03F7/70416 , G06T17/00 , G06T17/10 , B29K2995/0073 , G05B2219/49013
摘要： An improved stereolithography system for generating a three-dimensional object by creating a cross-sectional pattern of the object to be formed at a selected surface of a fluid medium capable of altering its physical state in response to appropriate synergistic stimulation by impinging radiation, particle bombardment or chemical reaction, information defining the object being specially processed to reduce curl and distortion, and increase resolution, strength, accuracy, speed and economy of reproduction even for rather difficult object shapes, the successive adjacent laminae, representing corresponding successive adjacent cross-sections of the object, being automatically formed and integrated together to provide a step-wise laminar buildup of the desired object, whereby a three-dimensional object is formed and drawn from a substantially planar surface of the fluid medium during the forming process.

13. 发明授权

US5143663A Stereolithography method and apparatus 失效
标题翻译：立体成像方法和装置
公开(公告)号：US5143663A
公开(公告)日：1992-09-01
申请号：US365444
申请日：1989-06-12
申请人： Richard N. Leyden , Thomas A. Almouist , Mark A. Lewis , Hop D. Nguyen
发明人： Richard N. Leyden , Thomas A. Almouist , Mark A. Lewis , Hop D. Nguyen
IPC分类号： B29C35/08 , B29C67/00 , B29C71/00 , B29C71/04 , B29K105/24
CPC分类号： B29C67/0066 , B29C71/0009 , B29C71/04
摘要： An improved stereolithographic apparatus and method is described. In one embodiment, the improvement includes immersing at least a portion of a part in a volume of a liquid solvent in a vapor degreaser while subjecting the portion to ultrasonic agitation to substantially remove excess resin. Several examples of solvents are provided, including ethanol, and Freon TMS. In a second embodiment, the improvement includes building the part on a layer of liquid resin supported by a volume of a dense, immiscible, and UV transparent intermediate liquid, and integratably immersing at least a portion of the built part in the intermediate liquid, and then either subjecting the immersed portion to ultrasonic agitation to substantially remove excess resin, or subjecting the immersed portion to UV light. Several examples of intermediate liquids are provided, including perfluorinated fluids, such as Fluorinert FC-40, and water-based salt solutions, such as solutions of magnesium sulfate or sodium chloride in water.

14. 发明授权

US5137662A Method and apparatus for production of three-dimensional objects by stereolithography 失效
标题翻译：通过立体光刻制造三维物体的方法和装置
公开(公告)号：US5137662A
公开(公告)日：1992-08-11
申请号：US697487
申请日：1991-05-02
申请人： Charles W. Hull , Borzo Modrek , Brent Parker , Raymond S. Freed , Thomas Almquist , Stuart T. Spence , David J. Albert , Dennis R. Smalley , Richard A. Harlow , Phil Stinebaugh , Harry L. Tarnoff , Hop D. Nguyen , Charles W. Lewis , Tom J. Vorgitch , David Z. Remba , Wayne B. Vinson
发明人： Charles W. Hull , Borzo Modrek , Brent Parker , Raymond S. Freed , Thomas Almquist , Stuart T. Spence , David J. Albert , Dennis R. Smalley , Richard A. Harlow , Phil Stinebaugh , Harry L. Tarnoff , Hop D. Nguyen , Charles W. Lewis , Tom J. Vorgitch , David Z. Remba , Wayne B. Vinson
IPC分类号： B29C67/00 , G01J1/42 , G03F7/00 , G03F7/20 , G06T17/00 , G06T17/10 , G06T17/20
CPC分类号： B29C67/0092 , G01J1/4257 , G03F7/0037 , G03F7/70416 , G06T17/00 , G06T17/10 , G06T17/20 , B29K2995/0073 , G05B2219/49013
摘要： An improved stereolithography system for generating a three-dimensional object by creating a cross-sectional pattern of the object to be formed at a selected surface of a fluid medium capable of altering its physical state in response to appropriate synergistic stimulation by impinging radiation, particle bombardment or chemical reaction, information defining the object being specially processed to reduce curl and distortion, and increase resolution, strength, accuracy, speed and economy of reproduction even for rather difficult object shapes, the successive adjacent laminae, representing corresponding successive adjacent cross-sections of the object, being automatically formed and integrated together to provide a step-wise laminar buildup of the desired object, whereby a three-dimensional object is formed and drawn from a substantially planar surface of the fluid medium during the forming process.
摘要翻译：一种改进的立体光刻系统，用于通过在能够响应于通过撞击辐射的适当的协同刺激来改变其物理状态的流体介质的选定表面处形成待形成的物体的横截面图案来产生三维物体，颗粒轰击或化学反应，定义被特殊处理的物体的信息以减少卷曲和变形，并且即使对于相当困难的物体形状也增加分辨率，强度，精度，速度和经济性，连续的相邻层，表示相应的相邻的相邻横截面该物体被自动地形成并且集成在一起以提供期望物体的逐层层叠，从而在成形过程中从流体介质的基本上平坦的表面形成三维物体并从其中抽出。

15. 发明授权

US5059359A Methods and apparatus for production of three-dimensional objects by stereolithography 失效
标题翻译：通过立体光刻法生产三维物体的方法和装置
公开(公告)号：US5059359A
公开(公告)日：1991-10-22
申请号：US182830
申请日：1988-04-18
申请人： Charles W. Hull , Stuart T. Spence , David J. Albert , Dennis R. Smalley , Richard A. Harlow , Phil Steinbaugh , Harry L. Tarnoff , Hop D. Nguyen , Charles W. Lewis , Tom J. Vorgitch , David Z. Remba
发明人： Charles W. Hull , Stuart T. Spence , David J. Albert , Dennis R. Smalley , Richard A. Harlow , Phil Steinbaugh , Harry L. Tarnoff , Hop D. Nguyen , Charles W. Lewis , Tom J. Vorgitch , David Z. Remba
IPC分类号： B29C67/00 , G01J1/42 , G03F7/00 , G03F7/20 , G06T17/00 , G06T17/10 , G06T17/20
CPC分类号： B29C67/0066 , B29C67/0092 , G01J1/4257 , G03F7/0037 , G03F7/70416 , G06T17/00 , G06T17/10 , G06T17/20 , G05B2219/49013
摘要： An improved sterolithography system for generating a three-dimensional object by creating a cross-sectional pattern of the object to be formed at a selected surface of a fluid medium capable of altering its physical state in response to appropriate synergistic stimulation by impinging radiation, particle bombardment or chemical reaction, information defining the object being specially processed to reduce curl and distortion, and increase resolution, strength, accuracy, speed and economy of reproduction even for rather difficult object shapes, and successive adjacent laminae, representing corresponding successive adjacent cross-sections of the object, being automatically formed and integrated together to provide a step-wise laminar buildup of the desired object, whereby a three-dimensional object is formed and drawn from a substantially planar surface of the fluid medium during the forming process.
摘要翻译：一种改进的固体光刻系统，用于通过在能够通过照射辐射的适当的协同刺激来改变其物理状态的流体介质的选定表面处产生待形成的物体的横截面图案来产生三维物体，或化学反应，定义被特别处理的物体的信息以减少卷曲和变形，并且即使对于相当困难的物体形状也增加分辨率，强度，精度，速度和再现经济性，以及连续的相邻层，代表相应的相邻的相邻横截面该物体被自动地形成并且集成在一起以提供期望物体的逐层层叠，从而在成形过程中从流体介质的基本上平坦的表面形成三维物体并从其中抽出。

16. 发明授权

US06649113B1 Method to reduce differential shrinkage in three-dimensional stereolithographic objects 有权
标题翻译：减少三维立体光刻物中差异收缩的方法
公开(公告)号：US06649113B1
公开(公告)日：2003-11-18
申请号：US09637829
申请日：2000-08-11
申请人： Chris R. Manners , Kabir Bhatia , Hop D. Nguyen , Cathy Yenly Vu Phan , Khalil M. Moussa
发明人： Chris R. Manners , Kabir Bhatia , Hop D. Nguyen , Cathy Yenly Vu Phan , Khalil M. Moussa
IPC分类号： B29C3508
CPC分类号： B29C64/124 , B33Y10/00
摘要： A method of forming a three-dimensional object in layerwise fashion by selectively solidifying a build material in a reinforced cyclical fashion. The method solidifies a first fully cured layer of build material and then partially solidifies at least one partially cured intermediate layer of build material having areas of liquid build material and areas of solidifying build material. The method repeats the cycle by solidifying a next overlying fully cured layer of build material and also the underlying liquid areas of build material in the at least one partially cured intermediate layer of build material.
摘要翻译：通过以增强的循环方式选择性地固化建筑材料，以分层方式形成三维物体的方法。该方法固化第一完全固化的构建材料层，然后部分地固化至少一个部分固化的构建材料的中间层，该中间层具有液体构建材料的区域和固化构建材料的区域。该方法通过在构建材料的至少一个部分固化的中间层中固化下一个覆盖的完全固化的构建材料层以及构建材料的下面的液体区域来重复循环。

17. 发明授权

US06261507B1 Method of and apparatus for making a three-dimensional object by stereolithography 失效
标题翻译：通过立体光刻制造三维物体的方法和装置
公开(公告)号：US06261507B1
公开(公告)日：2001-07-17
申请号：US09401770
申请日：1999-09-24
申请人： John J. Gigl , Dennis R. Smalley , Thomas H. Pang , Kerry J. Allen , Paul F. Jacobs , Hop D. Nguyen , Charles W. Hull , Richard N. Leyden
发明人： John J. Gigl , Dennis R. Smalley , Thomas H. Pang , Kerry J. Allen , Paul F. Jacobs , Hop D. Nguyen , Charles W. Hull , Richard N. Leyden
IPC分类号： B29C3508
CPC分类号： G06T17/20 , B29C64/135 , B29C64/40 , B29C67/02 , B33Y10/00 , B44B1/006 , G01J1/4257 , G03F7/0037 , G03F7/70416 , G05B2219/49013 , G06T17/00 , G06T17/10
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. In another method, a capability for automatically inserting vents an drains into a three-dimensional object representation is provided.
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。在另一种方法中，提供了将排水口自动插入到三维物体表示中的能力。

18. 发明授权

US5902538A Simplified stereolithographic object formation methods of overcoming minimum recoating depth limitations 失效
标题翻译：克服最小重涂深度限制的简化立体光刻物体形成方法
公开(公告)号：US5902538A
公开(公告)日：1999-05-11
申请号：US920428
申请日：1997-08-29
申请人： Theodore R. Kruger , Chris R. Manners , Hop D. Nguyen
发明人： Theodore R. Kruger , Chris R. Manners , Hop D. Nguyen
IPC分类号： B29C41/12 , B29C41/36 , B29C67/00 , B29C35/08 , B29C41/02
CPC分类号： B29C67/0062 , B29C41/12 , B29C41/36 , B29C67/0092
摘要： A rapid prototyping and manufacturing (e.g. stereolithography) method and apparatus for making high resolution objects utilizing low resolution materials which are limited by their inability to reliably form coatings of a desired thickness. The formation of coatings of such materials is limited to a Minimum Recoating Depth (MRD), when formed over entirely solidified laminae, which is thicker than the desired layer thickness or object resolution. Data manipulation techniques result in layers of material (and laminae) of the object being categorized as non-consecutive primary layers (laminae) and secondary layers (laminae) positioned intermediate to the primary layers (laminae). Substantially, all portions of primary laminae are exposed in association with primary layers and portions of the secondary laminae are formed in association with their respective secondary layers while other portions of the secondary laminae are formed in association with primary layers so as to form the object with a higher resolution than that dictated by the spacing between the primary layers. Recoating techniques are described which can be used when the thickness between consecutive layers is less than a leading edge bulge phenomena that results from the use of a particular recoating device such that direction of sweeping and/or order of sweeping of the recoating device is varied between consecutive primary layers.
摘要翻译：用于利用低分辨率材料制造高分辨率物体的快速成型和制造（例如立体光刻）方法和装置，其受到不能可靠地形成期望厚度的涂层的限制。这种材料的涂层的形成被限制在最小再沉积深度（MRD）时，当在完全凝固的层上形成时，该厚度比所需的层厚度或物体分辨率厚。数据处理技术导致被分类为非连续主层（层）的物体层（和层）层以及位于主层（层）之间的二层（层）。基本上，初级层的所有部分与主层相关联地暴露，并且次级层的部分与它们各自的次层相关联地形成，而次层的其它部分与主层相关联地形成以形成物体，分辨率高于主层之间间距所规定的分辨率。描述了当连续层之间的厚度小于由使用特定重涂装置引起的前缘凸起现象时，可使用再现技术，使得重涂装置的扫掠方向和/或扫描顺序在连续的主要层。

19. 发明授权

US5870307A Method and apparatus for production of high resolution three-dimensional objects by stereolithography 失效
公开(公告)号：US5870307A
公开(公告)日：1999-02-09
申请号：US480670
申请日：1995-06-07
申请人： Charles W. Hull , Stuart T. Spence , David J. Albert , Dennis R. Smalley , Richard A. Harlow , Phil Stinebaugh , Harry L. Tarnoff , Hop D. Nguyen , Charles W. Lewis , Tom J. Vorgitch , David Z. Remba
发明人： Charles W. Hull , Stuart T. Spence , David J. Albert , Dennis R. Smalley , Richard A. Harlow , Phil Stinebaugh , Harry L. Tarnoff , Hop D. Nguyen , Charles W. Lewis , Tom J. Vorgitch , David Z. Remba
IPC分类号： B29C67/00 , G01J1/42 , G03F7/00 , G03F7/20 , G06T17/00 , G06T17/10 , G06T17/20 , G06F19/00
CPC分类号： G06T17/20 , B29C67/0066 , B29C67/0092 , G01J1/4257 , G03F7/0037 , G03F7/70416 , G06T17/00 , G06T17/10 , B29K2995/0073 , G05B2219/49013
摘要： An improved stereolithography system for generating a three-dimensional object by creating a cross-sectional pattern of the object to be formed at a selected surface of a fluid medium capable of altering its physical state in response to appropriate synergistic stimulation by impinging radiation, particle bombardment or chemical reaction, information defining the object being specially processed to reduce curl and distortion, and increase resolution, strength, accuracy, speed and economy of reproduction even for rather difficult object shapes, the successive adjacent laminae, representing corresponding successive adjacent cross-sections of the object, being automatically formed and integrated together to provide a step-wise laminar buildup of the desired object, whereby a three-dimensional object is formed and drawn from a substantially planar surface of the fluid medium during the forming process.

20. 发明授权

US5345391A Method and apparatus for production of high resolution three-dimensional objects by stereolithography 失效
标题翻译：通过立体光刻技术生产高分辨率三维物体的方法和装置
公开(公告)号：US5345391A
公开(公告)日：1994-09-06
申请号：US861210
申请日：1992-03-31
申请人： Charles W. Hull , Stuart T. Spence , David J. Albert , Dennis R. Smalley , Richard A. Harlow , Phil Stinebaugh , Harry L. Tarnoff , Hop D. Nguyen , Charles W. Lewis , Tom J. Vorgitch , David Z. Remba
发明人： Charles W. Hull , Stuart T. Spence , David J. Albert , Dennis R. Smalley , Richard A. Harlow , Phil Stinebaugh , Harry L. Tarnoff , Hop D. Nguyen , Charles W. Lewis , Tom J. Vorgitch , David Z. Remba
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： An improved stereolithography system for generating a three-dimensional object by creating a cross-sectional pattern of the object to be formed at a selected surface of a fluid medium capable of altering its physical state in response to appropriate synergistic stimulation by impinging radiation, particle bombardment or chemical reaction, information defining the object being specially processed to reduce curl and distortion, and increase resolution, strength, accuracy, speed and economy of reproduction even for rather difficult object shapes, the successive adjacent laminae, representing corresponding successive adjacent cross-sections of the object, being automatically formed and integrated together to provide a step-wise laminar buildup of the desired object, whereby a three-dimensional object is formed and drawn from a substantially planar surface of the fluid medium during the forming process.
摘要翻译：一种改进的立体光刻系统，用于通过在能够响应于通过撞击辐射的适当的协同刺激来改变其物理状态的流体介质的选定表面处形成待形成的物体的横截面图案来产生三维物体，颗粒轰击或化学反应，定义被特殊处理的物体的信息以减少卷曲和变形，并且即使对于相当困难的物体形状也增加分辨率，强度，精度，速度和经济性，连续的相邻层，表示相应的相邻的相邻横截面该物体被自动地形成并且集成在一起以提供期望物体的逐层层叠，从而在成形过程中从流体介质的基本上平坦的表面形成三维物体并从其中抽出。

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