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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

US06406658B1 Stereolithographic method and apparatus for production of three dimensional objects using multiple beams of different diameters 有权
标题翻译：用于使用多个不同直径的光束生产三维物体的立体光刻方法和装置
公开(公告)号：US06406658B1
公开(公告)日：2002-06-18
申请号：US09248352
申请日：1999-02-08
申请人： Chris R. Manners , Michelle D. Guertin , Hop D. Nguyen , Jouni P. Partanen , Nansheng Tang , Michael A. Everett
发明人： Chris R. Manners , Michelle D. Guertin , Hop D. Nguyen , Jouni P. Partanen , Nansheng Tang , Michael A. Everett
IPC分类号： B29C3508
CPC分类号： B29C64/40 , B29K2995/0073 , B33Y10/00 , B33Y30/00
摘要： A rapid prototyping and manufacturing (e.g. stereolithography) method and apparatus for making three-dimensional objects on a layer by layer basis by selectively exposing layers of material to prescribed stimulation, using a beam having a first smaller diameter and a beam having a second larger diameter, to form laminae of the object. The power of the smaller beam is typically lower than the power of the larger beam. Object formation is controlled by data representing portions of the layers to be exposed with the larger beam (large spot portions) and those portions to be exposed with the smaller beam (small spot portions). In a preferred embodiment, portions exposed with the larger beam are formed first, for a given layer. Portions are exposed with the small beam next. Thereafter the entire perimeter of the laminae is traced using the small beam. Data manipulation techniques are used to identify which portions may be formed with the large beam to decrease exposure time and which should be formed with the small beam to maintain accuracy of the lamina being formed. More than two beam diameters may be used.
摘要翻译：通过使用具有第一较小直径的光束和具有第二较大直径的光束来选择性地将材料层暴露于规定的刺激，来快速制作（例如立体光刻）方法和装置，用于逐层地制造三维物体，形成物体的薄片。较小波束的功率通常低于较大波束的功率。物体形成由表示要用较大光束（大光斑部分）曝光的层的部分的数据和要用较小光束（小光斑部分）曝光的部分的数据控制。在优选实施例中，对于给定层，首先形成用较大光束暴露的部分。接下来的部分暴露在小梁上。此后，使用小梁追踪薄片的整个周边。使用数据处理技术来识别可以用大光束形成哪些部分以减少曝光时间，并且应该用小光束形成哪些部分以保持形成的薄片的精度。可以使用两个以上的光束直径。

17. 发明授权

US06261506B1 Method of making a three-dimensional object 有权
标题翻译：制作三维物体的方法
公开(公告)号：US06261506B1
公开(公告)日：2001-07-17
申请号：US09191161
申请日：1998-11-13
申请人： Hop D. Nguyen , Jouni P. Partanen
发明人： Hop D. Nguyen , Jouni P. Partanen
IPC分类号： B29C3508
CPC分类号： B29C64/40 , B29C64/124 , B29C64/153 , B33Y10/00
摘要： A method and apparatus for building three-dimensional objects having an internal structure, wherein the structure is discontinuous and is composed from a plurality of patterns and bridging patterns formed on a plurality of levels, wherein a bridging level and pattern reside between previous and subsequent levels from which the bridging pattern obtains at least a portion of its pattern. A portion of the bridging pattern is obtained from the pattern on the previous level and a portion of the bridging pattern is obtained from the pattern on the subsequent level.
摘要翻译：一种用于构建具有内部结构的三维物体的方法和装置，其中所述结构是不连续的，并且由形成在多个水平面上的多个图案和桥接图案组成，其中桥接水平和图案位于先前和后续水平之间桥接模式从其获得其图案的至少一部分。桥接图案的一部分从先前水平的图案获得，并且桥接图案的一部分从随后水平上的图案获得。

18. 发明授权

US6084980A Method of and apparatus for deriving data intermediate to cross-sectional data descriptive of a three-dimensional object 失效
标题翻译：用于将数据导出到描述三维对象的横截面数据的方法和装置
公开(公告)号：US6084980A
公开(公告)日：2000-07-04
申请号：US855125
申请日：1997-05-13
申请人： Hop D. Nguyen , Dennis R. Smalley
发明人： Hop D. Nguyen , Dennis R. Smalley
IPC分类号： B29C67/00 , G06K9/00
CPC分类号： B29C67/0066 , B29C67/0092
摘要： A rapid prototyping and manufacturing apparatus and method (e.g. stereolithographic apparatus and a method) for layer-by-layer formation of a three-dimensional object represented by cross-sectional data including a method and apparatus for deriving data for at least a portion of a region intermediate to two successive cross-sections of data for use in forming the three-dimensional object with improved surface resolution. Outward-facing regions on two or more successive cross-sectional layers of the object are compared to determine whether the outward-facing region(s) associated with one of the layers represents what was originally intended to be a smooth transitional region (i.e. a sloping region) between two cross-sections or a discontinuous region (i.e. vertical transitional region) between two cross-sections. The comparison may involve utilization of common boundaries between outward facing regions on the cross-sections. The comparison may further involve the utilization of widths of the outward-facing regions on adjacent cross-sections.
摘要翻译：一种用于逐层形成三维物体的快速原型制造和制造装置和方法（例如立体光刻设备和方法），其由横截面数据表示，包括用于导出至少一部分数据的数据的方法和装置区域中间到两个连续的数据横截面，用于形成具有改进的表面分辨率的三维物体。比较对象的两个或更多个连续横截面层上的面向外的区域，以确定与一个层相关联的面向外的区域是否表示最初旨在成为平滑过渡区域（即倾斜的区域）或两个横截面之间的不连续区域（即垂直过渡区域）。比较可能涉及利用横截面上面向外的区域之间的共同边界。该比较可以进一步涉及在相邻横截面上利用面向外的区域的宽度。

19. 发明授权

US5891382A Recoating of stereolithographic layers 失效
标题翻译：重新制备立体光刻层
公开(公告)号：US5891382A
公开(公告)日：1999-04-06
申请号：US767695
申请日：1996-12-17
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 , Mark A. Lewis , Abraham Liran , Dennis R. Smalley
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 , Mark A. Lewis , Abraham Liran , Dennis R. Smalley
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： Improved apparatus and methods for forming a layer of material over a surface of a previously-formed cross-section of a three-dimensional object in anticipation of forming a next cross-section of the object out of the layer. A volume of material, including at least some excess material, is placed over the surface, and the excess material is swept off by placing the excess material in the predetermined path of a sweeping member, the path being substantially in a plane spaced from a working surface of material. The member may be directed to sweep the excess material away through a successive number of sweeps, which may vary for each cross-section, at least a velocity which may vary for each sweep. Additionally, the clearance between the member and the surface of the previous cross-section may vary for each sweep. A "winged" member is also provided, comprising two legs extending from a base, and a "Trident" embodiment is also provided, comprising three legs extending from a base.
摘要翻译：改进的用于在三维物体的预先形成的横截面的表面上形成材料层的装置和方法，以期将物体的下一个横截面形成在该层之外。将一定体积的材料（包括至少一些多余的材料）放置在表面上，并且通过将多余的材料放置在扫掠构件的预定路径中来清除多余的材料，该路径基本上处于与工作材料表面。该构件可以被引导以通过连续数量的扫描来扫过多余的材料，该扫描对于每个横截面可以变化，至少每个扫描可能变化的速度。此外，构件和前一横截面的表面之间的间隙可以针对每个扫掠而变化。还提供了一个“翼形”构件，其包括从基座延伸的两个腿部，并且还提供了“三叉戟”实施例，其包括从底座延伸的三个腿部。

20. 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。

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