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公开(公告)号：CA2210802A1
公开(公告)日：1996-08-08
申请号：CA2210802
申请日：1996-01-29
Applicant: 3D SYSTEMS INC
Inventor： SMALLEY DENNIS R , ALMQUIST THOMAS A , LEYDEN RICHARD N , THAYER JEFFREY S , JACOBS PAUL F , HULL CHARLES W
Abstract: Methods and apparatus for use in building three-dimensional objects on substantially a cross-sectional basis including methods and apparatus for forming successive layers using counter-rotating rollers, ink jet recoaters, spinning members which sling material, applicator bars that dispense material via a meniscus and/or independently dispensed streams, and also including methods and apparatus to determine a preferred region over which to form a layer and to check for building errors.
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公开(公告)号：DE68924952D1
公开(公告)日：1996-01-11
申请号：DE68924952
申请日：1989-09-26
Applicant: 3D SYSTEMS INC
Inventor： ALMQUIST THOMAS A , HULL CHARLES W , MODREK BORZO , SERKUCZEWSKI ANDRZEJ R , JACOBS PAUL F , LEWIS CHARLES W , LEWIS MARK A , LIRAN ABRAHAM , SMALLEY DENNIS R , COHEN ADAM L
IPC: B29C35/08 , B29C41/12 , B29C67/00 , B29K105/24 , G01F23/292 , G01F23/36 , G05D9/12 , B29C39/42
Abstract: A stereolithography method and system for producing three-dimensional plastic objects by forming a plurality of thin layers of partially cured plastic material which are thin cross sections of the desired object. A layer of polymerizable resin is applied to a support surface and the excess is struck off, such as with a doctor blade, to form a smoothed layer. The smoothed layer is subjected to radiation in a predetermined pattern to form the cross-sectional layer into the desired shape. A plurality of layers are subsequently applied, leveled, then cured in the same manner to produce the desired three-dimensional object. Apparatus for measuring the level of the surface of a fluid is also provided. Variations in the level of fluid will be detected and may be used to drive a pump, diaphragm, or plunger in order to maintain the level of the fluid.
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公开(公告)号：DE3587656D1
公开(公告)日：1993-12-23
申请号：DE3587656
申请日：1985-08-06
Applicant: 3D SYSTEMS INC
Inventor： HULL CHARLES W
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公开(公告)号：DE602006011802D1
公开(公告)日：2010-03-11
申请号：DE602006011802
申请日：2006-03-20
Applicant: 3D SYSTEMS INC
Inventor： HULL CHARLES W , PARTANEN JOUNI P , SPERRY CHARLES R , DUNNE PATRICK , SCOTT SUZANNE M , MCNAMARA DENNIS F , MANNERS CHRIS R
Abstract: A solid imaging method employing sub-pixel shifting in multiple exposures of the digitally light projected image of a cross-section of a three-dimensional object on a solidifiable liquid medium. The multiple exposures provide increased resolution, preserving image features in a three-dimensional object and smoothing out rough or uneven edges that would otherwise occur using digital light projectors that are limited by the number of pixels in an image projected over the size of the image. Algorithms are used to select pixels to be illuminated within the boundary of each image projected in the cross-section being exposed.
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公开(公告)号：DE69636237D1
公开(公告)日：2006-07-20
申请号：DE69636237
申请日：1996-09-27
Applicant: 3D SYSTEMS INC
Inventor： LEYDEN RICHARD N , THAYER JEFFREY S , BEDAL BRYAN J L , ALMQUIST THOMAS A , HULL CHARLES W , EARL JOCELYN M , KEREKES THOMAS A , SMALLEY DENNIS R , MEROT CHRISTIAN M , FEDCHENKO RICHARD P , LOCKARD MICHAEL S , PANG THOMAS H , THAT DINH TON
IPC: B29C67/00 , B22F3/00 , B29C35/08 , B29C41/12 , B29C41/36 , B29K63/00 , B41J2/01 , G03C9/08 , G06T17/00
Abstract: A three-dimensional object is formed by selectively depositing successive layers (14) of build material from a print-head (9) having a plurality of orifices or nozzles (10(1)-10(96)), such as an ink-jet type of print-head. The print-head (9) is moved (X-Y control) relative to a support platform (15) in a series of scans in the X-direction offset from one another in the Y-direction and possibly overlapping. The orifices (10(1)-10(96)) extend transversely of the scan X-direction and may be set at an angle (α) to it to control the resolution perpendicular to the scan direction. The platform (15) is movable relative to the print-head in the Z-direction for forming each successive layer (14). The build material is a flowable material and may be a radiation-curable material, such as an ultra-violet curable photo-polymer. The data according to which each layer is formed may be manipulated according to a selected build style to determine the selective activation of the print-head orifices.
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Patent Agency Ranking
公开(公告)号：AT328722T
公开(公告)日：2006-06-15
申请号：AT02078594
申请日：1996-09-27
Applicant: 3D SYSTEMS INC
Inventor： LEYDEN RICHARD N , THAYER JEFFREY S , BEDAL BRYAN J L , ALMQUIST THOMAS A , HULL CHARLES W , EARL JOCELYN M , KEREKES THOMAS A , SMALLEY DENNIS R , MEROT CHRISTIAN M , FEDCHENKO RICHARD P , LOCKARD MICHAEL S , PANG THOMAS H , THAT DINH TON
IPC: B22F3/00 , B29C35/08 , B29C41/12 , B29C41/36 , B29C67/00 , B29K63/00 , G06T17/00 , B41J2/01 , G03C9/08
Abstract: A three-dimensional object is formed by selectively depositing successive layers (14) of build material from a print-head (9) having a plurality of orifices or nozzles (10(1)-10(96)), such as an ink-jet type of print-head. The print-head (9) is moved (X-Y control) relative to a support platform (15) in a series of scans in the X-direction offset from one another in the Y-direction and possibly overlapping. The orifices (10(1)-10(96)) extend transversely of the scan X-direction and may be set at an angle (α) to it to control the resolution perpendicular to the scan direction. The platform (15) is movable relative to the print-head in the Z-direction for forming each successive layer (14). The build material is a flowable material and may be a radiation-curable material, such as an ultra-violet curable photo-polymer. The data according to which each layer is formed may be manipulated according to a selected build style to determine the selective activation of the print-head orifices.
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公开(公告)号：HK1009595A1
公开(公告)日：1999-06-04
申请号：HK98110328
申请日：1998-08-31
Applicant: 3D SYSTEMS INC
Inventor： ALMQUIST THOMAS A , HULL CHARLES W , MODREK BORZO , SERKUCZEWSKI ANDRZEJ R , JACOBS PAUL F , LEWIS CHARLES W , LEWIS MARK A , LIRAN ABRAHAM
IPC: B29C35/08 , B29C41/12 , B29C67/00 , B29K105/24 , G01F23/292 , G01F23/36 , G05D9/12 , B29C , G01F
Abstract: A stereolithography method and system for producing three-dimensional plastic objects by forming a plurality of thin layers of partially cured plastic material which are thin cross sections of the desired object. A layer of polymerizable resin is applied to a support surface and the excess is struck off, such as with a doctor blade, to form a smoothed layer. The smoothed layer is subjected to radiation in a predetermined pattern to form the cross-sectional layer into the desired shape. A plurality of layers are subsequently applied, leveled, then cured in the same manner to produce the desired three-dimensional object. Apparatus for measuring the level of the surface of a fluid is also provided. Variations in the level of fluid will be detected and may be used to drive a pump, diaphragm, or plunger in order to maintain the level of the fluid.
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公开(公告)号：HK1006793A1
公开(公告)日：1999-03-19
申请号：HK98105545
申请日：1998-06-17
Applicant: 3D SYSTEMS INC
Inventor： HULL CHARLES W , LEWIS CHARLES W
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公开(公告)号：HK1002908A1
公开(公告)日：1998-09-25
申请号：HK98100602
申请日：1998-01-22
Applicant: 3D SYSTEMS INC
Inventor： ALMQUIST THOMAS A , HULL CHARLES W , MODREK BORZO , SERKUCZEWSKI ANDRZEJ R , JACOBS PAUL F , LEWIS CHARLES W , LEWIS MARK A , LIRAN ABRAHAM , SMALLEY DENNIS R , COHEN ADAM L
IPC: B29C35/08 , B29C41/12 , B29C67/00 , B29K105/24 , G01F23/292 , G01F23/36 , G05D9/12 , B29C
Abstract: A stereolithography method and system for producing three-dimensional plastic objects by forming a plurality of thin layers of partially cured plastic material which are thin cross sections of the desired object. A layer of polymerizable resin is applied to a support surface and the excess is struck off, such as with a doctor blade, to form a smoothed layer. The smoothed layer is subjected to radiation in a predetermined pattern to form the cross-sectional layer into the desired shape. A plurality of layers are subsequently applied, leveled, then cured in the same manner to produce the desired three-dimensional object. Apparatus for measuring the level of the surface of a fluid is also provided. Variations in the level of fluid will be detected and may be used to drive a pump, diaphragm, or plunger in order to maintain the level of the fluid.
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公开(公告)号：SG49722A1
公开(公告)日：1998-06-15
申请号：SG1996004356
申请日：1989-09-26
Applicant: 3D SYSTEMS INC
Inventor： ALMQUIST THOMAS A , HULL CHARLES W , MODREK BORZO , SERKUCZEWSKI ANDRZEJ R , JACOBS PAUL F
IPC: B29C35/08 , B29C41/12 , B29C67/00 , B29K105/24 , G01F23/292 , G01F23/36 , G05D9/12 , G01F23/28
Abstract: A stereolithography method and system for producing three-dimensional plastic objects by forming a plurality of thin layers of partially cured plastic material which are thin cross sections of the desired object. A layer of polymerizable resin is applied to a support surface and the excess is struck off, such as with a doctor blade, to form a smoothed layer. The smoothed layer is subjected to radiation in a predetermined pattern to form the cross-sectional layer into the desired shape. A plurality of layers are subsequently applied, leveled, then cured in the same manner to produce the desired three-dimensional object. Apparatus for measuring the level of the surface of a fluid is also provided. Variations in the level of fluid will be detected and may be used to drive a pump, diaphragm, or plunger in order to maintain the level of the fluid.
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