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公开(公告)号：JP2000280359A
公开(公告)日：2000-10-10
申请号：JP2000031242
申请日：2000-02-08
Applicant: 3 D SYSTEMS INC
Inventor： GUERTIN MICHELLE D , CHARLES W HULL , NGUYEN HOP D
Abstract: PROBLEM TO BE SOLVED: To reduce a distortion and to rapidly form a three-dimensional object by forming a layer of a liquid-like material on an object formed layer, exposing the material layer with a stimulus, forming a next layer connected to the object formed layer, repeating the steps, and forming the object by the layers bonded to each other. SOLUTION: In the apparatus for stereolithographically forming a three- dimensional object forms the object of layers bonded to each other by alternately repeating forming of a coating of a material and selectively curing the coating. The forming is started in the state that an elevation base 20 is sunk by a thickness of one layer under an upper surface 30 of a photopolymerizable material 14. The coating of the material 14 is selectively exposed with a stimulus beam, the material of the exposed portion is cured to a desired depth, and an initially cured layer stuck to the base 20 is formed. After the first formation of the cured layer, the base 20 and the one initial cured layer adhered to the base 20 and of a net thickness of the one layer is sunk in the material. Thus, the distortion is reduced, and the forming speed of the object can be accelerated.
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公开(公告)号：JP2002127260A
公开(公告)日：2002-05-08
申请号：JP2001245295
申请日：2001-08-13
Applicant: 3 D SYSTEMS INC
Inventor： MANNERS CHRIS R , BHATIA KABIR , NGUYEN HOP D , PHAN CATHY YENLY YU , MOUSSA KHALIL M
IPC: B29C67/00
Abstract: PROBLEM TO BE SOLVED: To decrease a vertical distortion in a method for forming a three- dimensional item in a way of every layer by selectively curing a forming material. SOLUTION: A method for manufacturing a three-dimensional item comprises a process of curing a first layer 21 of a forming material to be completely cured, a process of incompletely curing at least one of intermediate layers 24 of the forming material to be incompletely cured overlapping on at least a part of the first completely cured layer 21, the intermediate layer having a liquid area 26 of the forming material and a curing area 25 of the forming material, wherein the curing area 25 is not adhered to the first completely cured layer 21 after a cure conducted in a first scanning direction but is adhered to the first completely cured layer 21 after the second cure conducted in a second scanning direction and a process of curing the second layer 29 of the forming material to be completely cured and a liquid area 26 of the forming material in at least one of the incompletely cured intermediate layers 24.
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公开(公告)号：JP2006099123A
公开(公告)日：2006-04-13
申请号：JP2005304939
申请日：2005-10-19
Applicant: 3 D Systems Inc , 3ディー・システムズ、インコーポレイテッド
Inventor： GIGL JOHN J , PANG THOMAS H , SMALLEY DENNIS R , ALLEN KERRY J , VORGITCH THOMAS J , MANNERS CHRIS R , EARL JOCELYN M , BEDAL BRYAN J L , JACOBS PAUL F , NGUYEN HOP D , LEYDEN RICHARD N , HULL CHARLES W , VANDORIN STACIE L
CPC classification number: G06T17/00 , B29C64/135 , B29C64/40
Abstract: PROBLEM TO BE SOLVED: To make high resolution objects by stereolithography utilizing low-resolution materials which are limited by their inability to form unsupported structures of required thinness and/or their inability to form coatings of a required thinness. SOLUTION: 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 a 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. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：通过使用低分辨率材料的立体光刻技术制造高分辨率物体，这些材料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。 解决方案：基于层比较的数据处理技术用于控制曝光，以便在至少一些横截面的至少部分上延迟材料的凝固，直到沉积更高层的材料以允许下降 物体的位于构造材料深度处的特征，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。 使用类似的数据操作来确保在尝试凝固下一层之前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。 版权所有（C）2006，JPO＆NCIPI
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Patent Agency Ranking
公开(公告)号：JP2001353786A
公开(公告)日：2001-12-25
申请号：JP12621899
申请日：1999-03-29
Applicant: 3 D SYSTEMS INC
Inventor： HULL CHARLES W , SPENCE STUART T , ALBERT DAVID J , SMALLEY DENNIS R , HARLOW RICHARD A , STEINBURGH PHILIP , TARNOFF HARRY L , NGUYEN HOP D , LEWIS CHARLES W , VORGITCH TOM J , REMBA DAVID Z
IPC: B29C35/08 , B29C67/00 , B29K105/24 , G01J1/42 , G03C9/08 , G03F7/00 , G03F7/20 , G06F17/50 , G06T17/00 , G06T17/10 , G06T17/20
Abstract: PROBLEM TO BE SOLVED: To accurately form an object by a method for automatically forming a three-dimensional object. SOLUTION: The three-dimensional object (30) is formed by selectively curing many layers (23) of a transitive fluid medium (22) through exposing each of the layers (23) in a pattern selected by a specific stimulation (27). The fluid medium 22 is irradiated with the stimulation (27) in the form of a beam having a specified width and thereby thin layers (30a, 30b, 30c) which transit are successively laminated into a constituted object. Further, the selected pattern (20) of the layers (23) is obtained by processing stored data (20) which define the desired shape of the object (30). A data processing step (21) partially changes the stored data so that the changed data representing the individual thin layers corrected appropriately to the width of the beam is provided.
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公开(公告)号：JP2000015706A
公开(公告)日：2000-01-18
申请号：JP13310999
申请日：1999-04-05
Applicant: 3 D SYSTEMS INC
Inventor： HULL CHARLES W , SPENCE STUART T , ALBERT DAVID J , SMALLEY DENNIS R , HARLOW RICHARD A , STEINBURGH PHILIP , TARNOFF HARRY L , NGUYEN HOP D , LEWIS CHARLES W , VORGITCH TOM J , REMBA DAVID Z
IPC: B29C35/08 , B29C67/00 , B29K105/24 , G01J1/42 , G03C9/08 , G03F7/00 , G03F7/20 , G06F17/50 , G06T17/00 , G06T17/10 , G06T17/20
Abstract: PROBLEM TO BE SOLVED: To realize the quicker development and production of a highly accurate three dimensional plastic by a method wherein the coordinate data on an offered three dimensional substance are operated so as to automatically produce a three dimensional substance in response to the operated coordinate data. SOLUTION: By converting the CAD/CAM data of a substance into data representing the sections of the substance and directing a laser beam, the sectional shapes of the substance are drawn on the surfaces of liquid photosensitive polymer layers by means of the above-mentioned sectional data. By directing the beam so as to form a section to be adhered onto the sections already hardened and piled up through the hardening of the liquid photosensitive polymer layer in order to be arranged on the sections already hardened and piled up, the sections already hardened and piled up are positioned to the liquid photosensitive polymer layer. Further, by controlling a directing means and a positioning means by utilizing the above-mentioned sectional data, the piled-up sections of the substance are reproduced out of hardened photosensitive polymers.
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公开(公告)号：JP2006096047A
公开(公告)日：2006-04-13
申请号：JP2005304940
申请日：2005-10-19
Applicant: 3 D Systems Inc , 3ディー・システムズ、インコーポレイテッド
Inventor： GIGL JOHN J , PANG THOMAS H , SMALLEY DENNIS R , ALLEN KERRY J , VORGITCH THOMAS J , MANNERS CHRIS R , EARL JOCELYN M , BEDAL BRYAN J L , JACOBS PAUL F , NGUYEN HOP D , LEYDEN RICHARD N , HULL CHARLES W , VANDORIN STACIE L
CPC classification number: G06T17/00 , B29C64/135 , B29C64/40
Abstract: PROBLEM TO BE SOLVED: To provide techniques for improving manufacturing system and method of a component in reliability and precision (with little curl or subsequent distortion) in the case of forming a three-dimensional object of stacked layers by applying stereo-lithographic mechanism. SOLUTION: 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 upper layers of material are deposited so as to allow down-facing surface 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 that a minimum reliable coating thickness exists, above previously solidified material, before attempting solidification of a next layer. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：提供用于在通过应用立体光刻法形成堆叠层的三维物体的情况下提供可靠性和精度（部分卷曲或随后变形）的部件的制造系统和方法的技术 机制。 解决方案：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凝固，直到沉积材料的上层以允许向下 物体的表面将位于建筑材料中的深度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。 使用类似的数据操作来确保在尝试固化下一层之前存在最小的可靠的涂层厚度，以上的固化材料。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2000280360A
公开(公告)日：2000-10-10
申请号：JP2000031247
申请日：2000-02-08
Applicant: 3 D SYSTEMS INC
Inventor： NGUYEN HOP D , MANNERS CHRIS R
IPC: B29C67/00 , B29C41/12 , B29C41/36 , G05B19/4099
Abstract: PROBLEM TO BE SOLVED: To rapidly form a three-dimensional object by separating primary layers through a secondary layer, forming a primary cured layer corresponding to a primary layer, selectively exposing the primary layer for forming a secondary cured layer, and selectively exposing the secondary layer for forming a secondary cured layer corresponding to the secondary layer. SOLUTION: One set of S pieces of layers is provided, and a plurality of coating parameters capable of being designated for M pieces of groups of the layers are provided. The first group of the layers is a group containing primary layers, and the second group of the layers is a group containing N pieces of secondary layers. The primary layer is provided at each five layers. On the secondary layer, only a profile, an upward surface area and a downward surface area are formed. On the primary layer, a profile, an upward surface area, a downward surface area and a connected surface area are formed by sufficient exposure to cure a plurality of the previously formed secondary layers and to bring the secondary layer into close contact with the cured layer formed in the case that the primary layer is disposed on a surface of the material. Thus, a large quantity of time can be saved.
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公开(公告)号：JP2000272016A
公开(公告)日：2000-10-03
申请号：JP2000031246
申请日：2000-02-08
Applicant: 3 D SYSTEMS INC
Inventor： MANNERS CHRIS R , GUERTIN MICHELLE D , NGUYEN HOP D , PARTANEN JOUNI P , TANG NANSHENG , EVERETT MICHAEL A
IPC: B29C67/00
Abstract: PROBLEM TO BE SOLVED: To form a three-dimensional object by exposing the object to first and second beams to form a next layer of the object according to data for altering a layer of the material, repeating forming of the layer and exposing to a stimulation, and forming the object of a plurality of layers bonded to each other. SOLUTION: Data representing a three-dimensional object is formed by a computer 67. First and second beams are output from a laser head 70 to a pair of X-Y scanning mirrors 82 through an optical path 85 via an AOM 72, k a first frequency conversion crystal 74, a second frequency conversion crystal 76, a pair of optical path turning mirror 78 and a condensing optical system 80. A next layer is formed on the layer of the object 15 of a material 15 by the pair of the mirrors 82 while altering the data by manipulating the data. Thus, forming the layer of the object 15 and exposing to the stimulation are repeated, and the object 15 is formed of a plurality of layers bonded to each other.
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