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    Device for processing photo-polymerizable material for layer-by-layer generation of a shaped body
    1.
    发明授权
    Device for processing photo-polymerizable material for layer-by-layer generation of a shaped body 有权

    公开(公告)号：US09738034B2

    公开(公告)日：2017-08-22

    申请号：US15037170

    申请日：2014-11-19

    申请人： Ivoclar Vivadent AG ,  Technische Universität Wien

    发明人： Simon Gruber ,  Jürgen Stampfl ,  Jörg Ebert

    IPC分类号： B29C35/00 ,  B29C67/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29K27/18 ,  B29K59/00

    CPC分类号： B29C64/386 ,  B29C64/124 ,  B29C64/135 ,  B29C64/20 ,  B29C64/40 ,  B29K2027/18 ,  B29K2059/00 ,  B33Y30/00 ,  B33Y50/02

    摘要： A device for processing of highly viscous photopolymerizable material for layer-by-layer generation of a shaped body comprises a vat including a bottom which is at least in certain areas thereof transparent, a build platform, an exposure unit for exposing a material layer formed between the lower side of the build platform and the vat bottom in a locally selective manner, a control unit in order to adapt the relative position of the build platform to the vat bottom after each exposure step for a layer, in order to successively build up the shaped body in the desired shape, and a moveably guided doctor blade arrangement including a drive unit for moving the doctor blade arrangement back and forth underneath the build platform. The doctor blade arrangement comprises two doctor blades spaced apart in movement direction, which doctor blades are moveable at a constant distance to the vat bottom along the bottom. The vat includes vat end walls such that the doctor blade leading in movement direction in each case moves towards one of the vat end walls. Between the two doctor blades a chamber is formed which is open at its lower side, wherein walls of the chamber include at least one opening extending through the wall in movement direction for forming an overflow channel, so that material piling up between the leading doctor blade and the facing vat end wall is pressed through they at least overflow channel into the chamber.

    METHOD FOR THE CONSTRUCTION OF A SHAPED BODY
    2.
    发明申请
    METHOD FOR THE CONSTRUCTION OF A SHAPED BODY 有权

    公开(公告)号：US20150258732A1

    公开(公告)日：2015-09-17

    申请号：US14424133

    申请日：2013-08-21

    申请人： Ivoclar Vivadent AG

    发明人： Jürgen Stampfl ,  Johannes Homa ,  Johannes Patzer ,  Gerald Mitteramskogler ,  Jörg Ebert ,  Jürgen Laubersheimer ,  Wolfgang Wachter

    IPC分类号： B29C67/00

    CPC分类号： B29C64/386 ,  B29C64/129 ,  B29C64/135 ,  B29L2009/00 ,  B33Y10/00 ,  B33Y50/02

    摘要： The invention relates to a method for the construction of a shaped body from photopolymerizable material by using lithography-based generative production, in which a layer of liquid photopolymerizable material is defined on a production platform, and is polymerized in an exposure region having a predetermined contour, a further layer of photopolymerizable material is defined, the layer defined last is polymerized in an exposure region having a predetermined contour for the layer defined last, and the latter two steps are repeated until a shaped body having a predetermined shape has been formed by the sequence of cured layers with contours predetermined layer by layer, each exposure in an exposure region having a predetermined contour being carried out by controlled activation of individual exposure elements in a two-dimensional array of exposure elements, each exposure element being assigned an image element, wherein the exposure of the exposure region is carried out by a common light source and by a two-dimensional light intensity modulator which is illuminated by the light source and which has a grid of individually controllable intensity modulators, in such a way that each illuminated intensity modulator forms and exposure element that exposes an image element in the exposure region, wherein a two-dimensional matrix is compiled for each exposure step of a layer, each element of the matrix being assigned to an exposure element in the array of exposure elements and control instructions for this exposure element being obtained in the form of a time-dependent function which individually establishes the intensity profile of the radiation of the exposure element over the exposure step, characterized in that, if a component of the intensity variation common to all time-dependent function of the intensity profiles of all exposure elements to be activated exists as a general intensity variation in an exposure step, this general intensity variation is carried out by controlling the intensity of the light source in accordance with the general intensity variation.

    Method for the construction of a shaped body
    3.
    发明授权
    Method for the construction of a shaped body 有权

    公开(公告)号：US09764513B2

    公开(公告)日：2017-09-19

    申请号：US14424133

    申请日：2013-08-21

    申请人： Ivoclar Vivadent AG

    发明人： Jürgen Stampfl ,  Johannes Homa ,  Johannes Patzer ,  Gerald Mitteramskogler ,  Jörg Ebert ,  Jürgen Laubersheimer ,  Wolfgang Wachter

    IPC分类号： G06F17/00 ,  B29C67/00 ,  B33Y10/00 ,  B33Y50/02 ,  B29L9/00

    CPC分类号： B29C64/386 ,  B29C64/129 ,  B29C64/135 ,  B29L2009/00 ,  B33Y10/00 ,  B33Y50/02

    摘要： The invention relates to a method for the construction of a shaped body from photopolymerizable material by using lithography-based generative production, in which a layer of liquid photopolymerizable material is defined on a production platform, and is polymerized in an exposure region having a predetermined contour, a further layer of photopolymerizable material is defined, the layer defined last is polymerized in an exposure region having a predetermined contour for the layer defined last, and the latter two steps are repeated until a shaped body having a predetermined shape has been formed by the sequence of cured layers with contours predetermined layer by layer, each exposure in an exposure region having a predetermined contour being carried out by controlled activation of individual exposure elements in a two-dimensional array of exposure elements, each exposure element being assigned an image element, wherein the exposure of the exposure region is carried out by a common light source and by a two-dimensional light intensity modulator which is illuminated by the light source and which has a grid of individually controllable intensity modulators, in such a way that each illuminated intensity modulator forms and exposure element that exposes an image element in the exposure region, wherein a two-dimensional matrix is compiled for each exposure step of a layer, each element of the matrix being assigned to an exposure element in the array of exposure elements and control instructions for this exposure element being obtained in the form of a time-dependent function which individually establishes the intensity profile of the radiation of the exposure element over the exposure step, characterized in that, if a component of the intensity variation common to all time-dependent function of the intensity profiles of all exposure elements to be activated exists as a general intensity variation in an exposure step, this general intensity variation is carried out by controlling the intensity of the light source in accordance with the general intensity variation.

    Device For Processing Photo-Polymerizable Material For Layer-By-Layer Generation Of A Shaped Body
    6.
    发明申请
    Device For Processing Photo-Polymerizable Material For Layer-By-Layer Generation Of A Shaped Body 有权
    用于加工可聚合聚合材料的装置，用于逐层生成成形体

    公开(公告)号：US20160279869A1

    公开(公告)日：2016-09-29

    申请号：US15037170

    申请日：2014-11-19

    申请人： Ivoclar Vivadent AG ,  Technische Universitat Wien

    发明人： Simon Gruber ,  Jürgen Stampfl ,  Jörg Ebert

    IPC分类号： B29C67/00

    CPC分类号： B29C64/386 ,  B29C64/124 ,  B29C64/135 ,  B29C64/20 ,  B29C64/40 ,  B29K2027/18 ,  B29K2059/00 ,  B33Y30/00 ,  B33Y50/02

    摘要： A device for processing of highly viscous photopolymerizable material for layer-by-layer generation of a shaped body comprises a vat including a bottom which is at least in certain areas thereof transparent, a build platform, an exposure unit for exposing a material layer formed between the lower side of the build platform and the vat bottom in a locally selective manner, a control unit in order to adapt the relative position of the build platform to the vat bottom after each exposure step for a layer, in order to successively build up the shaped body in the desired shape, and a moveably guided doctor blade arrangement including a drive unit for moving the doctor blade arrangement back and forth underneath the build platform. The doctor blade arrangement comprises two doctor blades spaced apart in movement direction, which doctor blades are moveable at a constant distance to the vat bottom along the bottom. The vat includes vat end walls such that the doctor blade leading in movement direction in each case moves towards one of the vat end walls. Between the two doctor blades a chamber is formed which is open at its lower side, wherein walls of the chamber include at least one opening extending through the wall in movement direction for forming an overflow channel, so that material piling up between the leading doctor blade and the facing vat end wall is pressed through they at least overflow channel into the chamber.

    摘要翻译： 用于处理高粘度可光聚合材料以用于成型体的逐层生成的装置包括：包含至少在其某些区域中的透明的底部的槽，构建平台，用于暴露在 构建平台的下侧和大桶底部以局部选择的方式，控制单元，以便在层的每个曝光步骤之后使构建平台的相对位置适应于大桶底部，以便连续地建立 以及可移动地引导的刮刀装置，其包括用于在构建平台下方来回移动刮刀装置的驱动单元。 刮刀装置包括沿运动方向间隔开的两个刮刀，刮刀可沿底部恒定的距离移动到槽底。 大桶包括大桶端壁，使得在每种情况下沿运动方向导向的刮刀朝着大桶端壁之一移动。 在两个刮刀之间形成有在其下侧开放的腔室，其中腔室的壁包括沿移动方向延伸穿过壁的至少一个开口，用于形成溢流通道，使得材料在引导刮刀 并且面向的大桶端壁通过它们至少溢出通道进入腔室。

    Device and method for processing light-polymerizable material for building up an object in layers
    7.
    发明授权
    Device and method for processing light-polymerizable material for building up an object in layers 有权
    用于加工用于层叠物体的可聚光材料的装置和方法

    公开(公告)号：US09067359B2

    公开(公告)日：2015-06-30

    申请号：US14055041

    申请日：2013-10-16

    申请人： Ivoclar Vivadent AG ,  Technische Universitat Wien

    发明人： Gottfried Rohner ,  Wolfgang Wachter ,  Christoph Appert ,  Johannes Patzer ,  Jürgen Stampfl

    IPC分类号： B29C67/00 ,  A61C13/00

    CPC分类号： B29C67/0051 ,  A61C13/0013 ,  B29C64/124 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00

    摘要： A method and a device for processing light-polymerizable material for the assembly of a mold, utilizing a lithography-based generative manufacturing technique wherein a layer of a light-polymerizable material, the material being located in at least one trough (4) having a particularly light-transmissive, horizontal bottom (6), is polymerized by illumination on at least one horizontal platform (12), the platform having a prespecified geometry and projecting into a trough (4), in an illumination field, wherein the platform (12) is displaced vertically to form a subsequent layer, light-polymerizable material is then added to the most recently formed layer, and repetition of the foregoing steps leads to the layered construction of the mold in the desired form, which arises from the succession of layer geometries. The invention is characterized in that the trough (4) can be shifted horizontally to a supply position, and the supply device (8) brings light-polymerizable material at least to an illumination field of the trough bottom (6), before the at least one trough (4) is shifted to an illumination position in which the illumination field is located below the platform (12) and above the illumination unit (10), and illumination is carried out.

    摘要翻译： 一种用于处理用于组装模具的可光聚合材料的方法和装置，利用基于光刻的生成制造技术，其中可光聚合材料层，该材料位于至少一个槽（4）中，其具有 特别是透光的水平底部（6）通过在至少一个水平平台（12）上的照明进行聚合，所述平台具有预先指定的几何形状并且在照明场中突出到槽（4）中，其中平台（12 ）垂直位移以形成后续层，然后将可光聚合材料加入到最近形成的层中，并且重复上述步骤导致模具的分层结构，其由所述层的连续性产生， 几何形状。 本发明的特征在于，槽（4）可以水平地移动到供应位置，并且供应装置（8）至少在至少在槽底部（6）的照明场之前使光可聚合材料至少 一个槽（4）移动到其中照明场位于平台（12）下方和照明单元（10）的上方的照明位置，并且进行照明。

    Method for the Construction of a Shaped Body
    8.
    发明申请
    Method for the Construction of a Shaped Body 有权
    成型体的构造方法

    公开(公告)号：US20150131074A1

    公开(公告)日：2015-05-14

    申请号：US14404984

    申请日：2013-06-04

    申请人： Ivoclar Vivadent AG

    发明人： Jörg Ebert ,  Wolfgang Wachter ,  Gottfried Rohner ,  Jürgen Stampfl

    IPC分类号： B29C67/00

    CPC分类号： B29C67/0051 ,  B29C41/042 ,  B29C41/045 ,  B29C41/047 ,  B29C64/00 ,  B29C64/124 ,  B29C64/129 ,  B29C64/135 ,  B29K2995/002 ,  B29L2031/7536

    摘要： The invention relates to a method for the construction of a shaped body from photopolymerizable material by using lithography-based generative production (rapid prototyping), in which a layer of liquid photopolymerizable material is defined on a production platform (1, 2, 3, 4), the layer is polymerized in an exposure region having a predetermined contour by exposure, a further layer of photopolymerizable material is defined on the polymerized layer, the layer defined last is polymerized by exposure in an exposure region having a predetermined contour for the layer defined last, and the latter two steps are repeated until a shaped body having a predetermined shape has been formed by the sequence of cured layers with contours predetermined layer by layer, wherein ink is applied onto at least one layer inside the predetermined contour, wherein the production platform is suspended moveably and wherein the production platform is brought, after the polymerization of a layer in a processing station for polymerizing a layer, by movement to an ink application station as a further processing station in which ink is applied position-selectively to the layer formed last, after which the production platform is moved again to the processing station for polymerizing a further layer, characterized in that the movement of the production platform between various processing stations is carried out by rotating a drum-shaped carrier which holds the production platform on its circumference, around a horizontal or vertical axis of rotation, wherein the processing stations are disposed distributed around the axis of rotation of the drum shaped carrier.

    摘要翻译： 本发明涉及一种通过使用基于光刻的生产（快速成型）技术从可光聚合材料构建成形体的方法，其中在生产平台（1,2,3,4）上定义液体可光聚合材料层 ），通过曝光在具有预定轮廓的曝光区域中聚合该层，在聚合层上限定另外的可光聚合材料层，最后定义的层通过在具有预定轮廓的曝光区域中曝光而被定义 最后，重复后两个步骤，直到具有预定形状的成形体已经通过具有预定层次的预定等级的固化层序列形成，其中将油墨施加到预定轮廓内的至少一层，其中生产 平台可移动地悬挂，并且其中在加工中的层的聚合之后引入生产平台 通过移动到油墨施加站作为另外的处理站，其中将油墨位置选择性地施加到最后形成的层，之后将生产平台再次移动到处理站以聚合另一层， 其特征在于，生产平台在各个处理站之间的运动是通过旋转一个滚筒形的载体来实现的，该鼓形载体围绕水平或垂直的旋转轴围绕其圆周保持生产平台，其中处理站被布置在 鼓形载体的旋转轴。