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1. 发明授权

US09067359B2 Device and method for processing light-polymerizable material for building up an object in layers 有权
标题翻译：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。

2. 发明授权

US09796138B2 Device and method for processing light-polymerizable material for building up an object in layers 有权
公开(公告)号：US09796138B2
公开(公告)日：2017-10-24
申请号：US14255056
申请日：2014-04-17
申请人： Ivoclar Vivadent AG , Technische Universitat Wien
发明人： Robert Liska , Johannes Patzer , Jurgen Stampfl , Wolfgang Wachter , Christoph Appert
IPC分类号： B29C67/00 , B33Y30/00 , B33Y10/00 , A61C13/00
CPC分类号： B29C64/135 , A61C13/0013 , B33Y10/00 , B33Y30/00
摘要： A method and a device for processing a light-polymerizable material (5, 55) for building up an object (27) in layers, using a lithography based generative manufacture having a construction platform (12) for building up the object (27), a projecting exposure unit (10, 60) that can be controlled for locally selected exposing of a surface on the construction platform (12, 62) to an intensity pattern having a prescribed shape, and a control unit (11, 61) prepared for polymerizing overlapping layers (28) on the construction platform (12, 62) in successive exposure steps, each having a prescribed geometry, by controlling the projecting exposure unit (10, 60), in order to thus successively build up the object (27) in the desired shape, said shape resulting from the sequence of layer geometries. The invention is characterized in that a further exposure unit (16, 66) for exposing the surface of the construction platform (12, 62) is provided on the side opposite the projecting exposure unit (10, 60), and that the construction platform (12, 62) is designed to be at least partially transparent to light, and that the control unit (11, 61) is designed for controlling the further exposure unit (16, 66) at least while building up the first layer (28), said layer adhering to the construction platform (12, 62), for exposing in the prescribed geometry.

3. 发明申请

US20150258732A1 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.

4. 发明授权

US09764513B2 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.

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