Patent application number | Description | Published |
20090020901 | Process and device for producing a three-dimensional object - A process for producing at least one three-dimensional object by solidifying a solidifyable material, comprising the steps of:
| 01-22-2009 |
20090130449 | Process and freeform fabrication system for producing a three-dimensional object - The present invention describes a process for producing a three-dimensional object, comprising: providing a material to be solidified, the material comprising a filler and a binder; delivering electromagnetic radiation and/or synergistic stimulation in a pattern or an image to a building region for solidifying said material; wherein said delivering of electromagnetic radiation and/or synergistic stimulation is performed selectively to a defined area or volume of said material to be solidified; and wherein an energy density of electromagnetic radiation and/or synergistic stimulation is varied within said pattern or image and/or between patterns or images of different building regions of said material. The present invention may be directed also to a system where different first and second materials are to be solidified. The present invention further provides a freeform fabrication system, and a freeform three-dimensional object having unique properties as well as products derived therefrom, such as sintered products. | 05-21-2009 |
20090146344 | Process and freeform fabrication system for producing a three-dimensional object - The present invention provides a process for producing at least one three-dimensional object, comprising: providing a material to be solidified; delivering electromagnetic radiation and/or synergistic stimulation in a pattern or an image to a building region for solidifying said material; wherein said delivering of electromagnetic radiation and/or synergistic stimulation is performed selectively to a defined area or volume of said material to be solidified; and wherein an energy density of electromagnetic radiation and/or synergistic stimulation is controlled and/or adjusted in a border region of said pattern or image and/or is varied in border regions of patterns or images of different building regions of said material, to have an energy density different from the building region other than said border region(s), wherein the controlling and/or adjustment is dependent on, alone or in combination: (a) intensity of electromagnetic radiation and/or synergistic stimulation delivered to said defined area or volume of said material to be solidified; (b) total shape or contour shape of said defined area or volume of said material to be solidified; (c) size of said defined area or volume of said material to be solidified; and (d) material to be solidified. A device is provided likewise. | 06-11-2009 |
20100125356 | System and Method for Manufacturing - A method includes receiving a predetermined object pattern representing a portion of a three-dimensional object, modifying the predetermined object pattern to correct for geometric distortion of a pattern generator, and generating the modified pattern using the pattern generator. The generated pattern interacts with a reactive material to form the portion of the three-dimensional object defined by the predetermined object pattern. | 05-20-2010 |
20100249979 | DEVICE AND METHOD FOR PRODUCING A THREE-DIMENSIONAL OBJECT BY MEANS OF MASK EXPOSURE - Device for producing a three-dimensional object by solidification of a material solidifiable under the action of electromagnetic radiation by means of energy input via an imaging unit comprising a predetermined number of discrete imaging, elements (pixels), said device comprising a computer unit, an IC and/or a software implementation respectively with the ability of adjusting and/or controlling the energy input via a specific gray value and/or color value in a voxel matrix. | 09-30-2010 |
20110009992 | Process for the Production of a Three-Dimensional Object With Resolution Improvement by Pixel Shift - The invention relates to a process or device for the production of a three-dimensional object by layer-wise solidification of a material which is solidifiable under the application of electromagnetic irradiation by means of mask illumination, wherein the mask is produced using an image forming unit having a prescribed resolution, which is formed from a constant number of image forming elements (pixels) being discrete and being arranged in a spatially mutually fixed manner. For the improvement of the resolution along the outer and inner contours of the sectional areas of the object to be generated layer-wise in the sub-pixel range, a multiple illumination per layer is performed, which consists of a series of multiple images that are mutually shifted in the sub-pixel range in the image/construction plane, wherein a separate mask/bitmap is produced for each shifted image. | 01-13-2011 |
20110062633 | PROCESS FOR THE PRODUCTION OF A THREE-DIMENSIONAL OBJECT WITH AN IMPROVED SEPARATION OF HARDENED MATERIAL LAYERS FROM A CONSTRUCTION PLANE - The invention relates to a process or a device for the production of a three-dimensional object by layer-wise solidification of a photo-polymerizable resin by means of a planar or essentially planar construction/reference plane, at which the photo-polymerizable resin contained in the liquid material is to be hardened by electromagnetic irradiation, and wherein the material application for the subsequent layer automatically results from the separation of the last hardened layer from the construction/-reference plane, whereby the construction/reference plane is formed by an elastic film. The film is fixed in a frame, and the height position of the frame with the film is adjusted in a basin containing the liquid material such that the pressure of the liquid material compensates the sagging of the film (formation of a negative meniscus), and that the lower side of the film is permanently in contact with the material during the whole construction process. | 03-17-2011 |
20110089610 | Resin Solidification Substrate and Assembly - A solidification substrate assembly for making a three-dimensional object from a solidifiable material includes a solidification substrate assembly. In certain examples, the solidifiable material solidifies in contact with the solidification substrate, and the tilting of the substrate and/or or the use of a peeling member facilitates separation of the substrate from the solidified material. In other examples, the solidification substrate assembly includes a film that is adjacent to a rigid or semi-rigid layer. The solidifiable material solidifies in contact with the film, and a peeling member peels the film away from the solidified material. Intelligent solidification substrate assemblies are also described in which a force sensor determines when to expose the solidifiable material to solidification energy and/or whether to use a peeling member to separate the solidification substrate from a solidified objection section. | 04-21-2011 |
20110101570 | Device and Method for Producing a Three-Dimensional Object by Means of Mask Exposure - The invention describes device and method for producing a three-dimensional object by solidifying a solidifiable material under an action of electromagnetic radiation by means of energy input via an imaging unit comprising a predetermined number of discrete imaging elements (pixels). The energy input related to a specific cross-sectional area of the three-dimensional object is controlled by exposure by means of multiple successive raster masks (bitmaps; e.g. bitmap | 05-05-2011 |
20110196529 | Process for the Production of a Three-Dimensional Object With Resolution Improvement by "Pixel Shift" - The invention relates to a process or device for the production of a three-dimensional object by layer-wise solidification of a material which is solidifiable under the application of electromagnetic irradiation by means of mask illumination, wherein the mask is produced using an image forming unit having a prescribed resolution, which is formed from a constant number of image forming elements (pixels) being discrete and being arranged in a spatially mutually fixed manner. For the improvement of the resolution along the outer and inner contours of the sectional areas of the object to be generated layer-wise in the sub-pixel range, a multiple illumination per layer is performed, which consists of a series of multiple images that are mutually shifted in the sub-pixel range in the image/construction plane, wherein a separate mask/bitmap is produced for each shifted image. | 08-11-2011 |
20110260365 | PROCESS AND FREEFORM FABRICATION SYSTEM FOR PRODUCING A THREE-DIMENSIONAL OBJECT - The present invention provides a process for producing at least one three-dimensional object, comprising: providing a material to be solidified; delivering electromagnetic radiation and/or synergistic stimulation in a pattern or an image to a building region for solidifying said material; wherein said delivering of electromagnetic radiation and/or synergistic stimulation is performed selectively to a defined area or volume of said material to be solidified; and wherein an energy density of electromagnetic radiation and/or synergistic stimulation is controlled and/or adjusted in a border region of said pattern or image and/or is varied in border regions of patterns or images of different building regions of said material, to have an energy density different from the building region other than said border region(s), wherein the controlling and/or adjustment is dependent on, alone or in combination: (a) intensity of electromagnetic radiation and/or synergistic stimulation delivered to said defined area or volume of said material to be solidified; (b) total shape or contour shape of said defined area or volume of said material to be solidified; (c) size of said defined area or volume of said material to be solidified; and (d) material to be solidified. A device is provided likewise. | 10-27-2011 |
20130001834 | APPARATUS AND METHOD FOR FORMING THREE-DIMENSIONAL OBJECTS USING LINEAR SOLIDIFICATION - An apparatus and method for making a three-dimensional object from a solidifiable material using a linear solidification device is shown and described. In certain examples, the linear solidification device includes a laser diode that projects light onto a scanning device, such as a rotating polygonal mirror or a linear scanning micromirror, which then deflects the light onto a photohardenable resin. As a result, the linear solidification device scans a line of solidification energy in a direction that is substantially orthogonal to the direction of travel of the laser diode. In other examples, the linear solidification device is a laser device array or light emitting diode array that extends in a direction substantially orthogonal to the direction of travel of the array. | 01-03-2013 |
20130140741 | RESIN SOLIDIFICATION SUBSTRATE AND ASSEMBLY - A solidification substrate assembly for making a three-dimensional object from a solidifiable material includes a solidification substrate assembly. In certain examples, the solidifiable material solidifies in contact with the solidification substrate, and the tilting of the substrate and/or or the use of a peeling member facilitates separation of the substrate from the solidified material. In other examples, the solidification substrate assembly includes a film that is adjacent to a rigid or semi-rigid layer. The solidifiable material solidifies in contact with the film, and a peeling member peels the film away from the solidified material. Intelligent solidification substrate assemblies are also described in which a force sensor determines when to expose the solidifiable material to solidification energy and/or whether to use a peeling member to separate the solidification substrate from a solidified objection section. | 06-06-2013 |
20140052288 | APPARATUS AND METHOD FOR FORMING THREE-DIMENSIONAL OBJECTS USING LINEAR SOLIDIFICATION - An apparatus and method for making a three-dimensional object from a solidifiable material using a linear solidification device is shown and described. In certain examples, the linear solidification device includes a laser diode that projects light onto a scanning device, such as a rotating polygonal mirror or a linear scanning micromirror, which then deflects the light onto a photohardenable resin. As a result, the linear solidification device scans a line of solidification energy in a direction that is substantially orthogonal to the direction of travel of the laser diode. In other examples, the linear solidification device is a laser device array or light emitting diode array that extends in a direction substantially orthogonal to the direction of travel of the array. | 02-20-2014 |
20140170591 | DENTAL ARCH MODEL AND METHOD OF MAKING THE SAME - A dental arch model and method for making the same is shown and described. The dental arch model includes a connector having opposite ends that connect to a respective one of the arch legs. The connector has a three-dimensional shape but does not include a surface that is both planar and parallel to the base of the arch connector along more than two thirds of the arch connector's length. In certain examples, the connector is in the shape of a prism or a trapezoid. In other examples, the connector has an upper surface that is sloped relative to the base of the arch connector. The arch connector may also include a plurality of fluid passageways for allowing fluid flow from an interior area between the inner walls of the arch connector to a location outside of the connector. | 06-19-2014 |
20140239554 | PROCESS AND DEVICE FOR PRODUCING A THREE-DIMENSIONAL OBJECT - A process for producing at least one three-dimensional object by solidifying a solidifyable material, comprising the steps of:
| 08-28-2014 |
20140306380 | APPARATUS AND METHOD FOR FORMING THREE-DIMENSIONAL OBJECTS USING LINEAR SOLIDIFICATION WITH TRAVEL AXIS CORRECTION AND POWER CONTROL - An apparatus and method for making a three-dimensional object from a solidifiable material using a linear solidification device is shown and described. The apparatus and method compensate for a non-orthogonal angle between the travel axis and scanning axis of a linear scanning device and also provide a substantially constant solidification depth along the scanning axis. In certain examples, a solidification energy control system is also provided to regulate the solidification power supplied to the solidifiable material by modulating the power supplied to the linear solidification device's solidification energy source, examples of which include laser diodes. | 10-16-2014 |
20140319735 | METHOD AND APPARATUS FOR MAKING THREE-DIMENSIONAL OBJECTS FROM MULTIPLE SOLIDIFIABLE MATERIALS - Methods and apparatuses for making three-dimensional objects from multiple solidifiable materials is shown and described. Multiple solidifiable material container assemblies are provided for holding different solidifiable materials. Relative movement between the solidifiable material container assemblies and a build platform allows the solidifiable materials to be switched as an object is built. Several exemplary cleaning stations are provided for removing residual solidifiable materials from the surface of the three-dimensional object as it is built to better ensure smooth transitions between materials on the finished object. | 10-30-2014 |
20140319736 | APPARATUS AND METHOD FOR FORMING THREE-DIMENSIONAL OBJECTS USING LINEAR SOLIDIFICATION - An apparatus and method for making a three-dimensional object from a solidifiable material using a linear solidification device is shown and described. In certain examples, the linear solidification device includes a laser diode that projects light onto a linear scanning device, such as a rotating polygonal mirror or a linear scanning micromirror, which then deflects the light onto a photohardenable resin. As a result, the linear solidification device scans a line of solidification energy in a direction that is substantially orthogonal to the direction of travel of the laser diode. In other examples, the linear solidification device is a laser device array or light emitting diode array that extends in a direction substantially orthogonal to the direction of travel of the array. | 10-30-2014 |
20140319737 | APPARATUS AND METHOD FOR FORMING THREE-DIMENSIONAL OBJECTS USING LINEAR SOLIDIFICATION - An apparatus and method for making a three-dimensional object from a solidifiable material using a linear solidification device is shown and described. In certain examples, the linear solidification device includes a laser diode that projects light onto a scanning device, such as a rotating polygonal mirror or a linear scanning micromirror, which then deflects the light onto a photohardenable resin. As a result, the linear solidification device scans a line of solidification energy in a direction that is substantially orthogonal to the direction of travel of the laser diode. In other examples, the linear solidification device is a laser device array or light emitting diode array that extends in a direction substantially orthogonal to the direction of travel of the array. | 10-30-2014 |
20140319738 | APPARATUS AND METHOD FOR FORMING THREE-DIMENSIONAL OBJECTS USING LINEAR SOLIDIFICATION - An apparatus and method for making a three-dimensional object from a solidifiable material using a linear solidification device is shown and described. In certain examples, the linear solidification device includes a laser diode that projects light onto a scanning device, such as a rotating polygonal mirror or a linear scanning micromirror, which then deflects the light onto a photohardenable resin. As a result, the linear solidification device scans a line of solidification energy in a direction that is substantially orthogonal to the direction of travel of the laser diode. In other examples, the linear solidification device is a laser device array or light emitting diode array that extends in a direction substantially orthogonal to the direction of travel of the array. | 10-30-2014 |
20140322374 | METHOD AND APPARATUS FOR MAKING THREE-DIMENSIONAL OBJECTS FROM MULTIPLE SOLIDIFIABLE MATERIALS - Methods and apparatuses for making three-dimensional objects from multiple solidifiable materials is shown and described. Multiple solidifiable material container assemblies are provided for holding different solidifiable materials. Relative movement between the solidifiable material container assemblies and a build platform allows the solidifiable materials to be switched as an object is built. Several exemplary cleaning stations are provided for removing residual solidifiable materials from the surface of the three-dimensional object as it is built to better ensure smooth transitions between materials on the finished object. | 10-30-2014 |