公开(公告)号：US08048359B2

公开(公告)日：2011-11-01

申请号：US12254579

申请日：2008-10-20

申请人： Hongqing V. Wang ,  Soon-Chun Kuek ,  Charles W. Hull ,  Richard Ora Gregory, II ,  Thomas Alan Kerekes

发明人： Hongqing V. Wang ,  Soon-Chun Kuek ,  Charles W. Hull ,  Richard Ora Gregory, II ,  Thomas Alan Kerekes

IPC分类号： B29C35/04

CPC分类号： B29C64/129 ,  B05C9/12 ,  B33Y10/00 ,  B33Y40/00 ,  B33Y50/00

摘要： There is provided methods and apparatus for compensation of intensity profiles of imagers used in three-dimensional modelers. The intensity profile of the actinic radiation projected from the imager is determined by a variety of techniques, including but not limited to manually operated sensors, exposed and scanned actinic radiation-sensitive paper, and intensity profilers. Once the intensity profile of the imager is determined, each layer of the solidifiable liquid material is cured by projecting a plurality of patterns (as opposed to a single pattern) defining the two-dimensional cross-section of the part being cured. The patterns vary in duration, number, and/or shape to correlate to the intensity profile so that a single layer of selectively cured solidifiable liquid material is cured with a substantially equivalent (or otherwise controlled) amount of actinic radiation per unit of surface area to provide generally controlled and consistent part quality.

摘要翻译： 提供了用于补偿三维建模者中使用的成像器的强度分布的方法和装置。 通过各种技术确定从成像仪投射的光化辐射的强度分布，包括但不限于手动操作的传感器，曝光和扫描的光化辐射敏感纸以及强度分析仪。 一旦确定了成像器的强度分布，则通过突出限定正在固化的部件的二维横截面的多个图案（与单个图案相对），固化每一层可固化液体材料。 这些图案的持续时间，数量和/或形状在持续时间，数量和/或形状方面不同，以与强度分布相关联，使得单层选择性固化的可固化液体材料以每单位表面积基本相等（或以其他方式控制）的光化辐射固化， 提供一般控制和一致的零件质量。

公开(公告)号：US20080054531A1

公开(公告)日：2008-03-06

申请号：US11468090

申请日：2006-08-29

申请人： Thomas Alan Kerekes ,  Jouni P. Partanen ,  Yong Chen ,  Charles W. Hull

发明人： Thomas Alan Kerekes ,  Jouni P. Partanen ,  Yong Chen ,  Charles W. Hull

IPC分类号： B29C35/08 ,  B29C41/02

CPC分类号： B29C67/0066 ,  B29C64/135 ,  B29C64/386 ,  B29C64/40 ,  B29K2995/0073 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B33Y70/00 ,  B33Y80/00 ,  G05B19/4099 ,  G05B2219/49019

摘要： A solid imaging apparatus and method employing levels of exposure varied with gray scale or time or both of digitally light projected image of a cross-section of a three-dimensional object on a solidifiable photopolymer build material. The gray scale levels of exposure of projected pixels permits the polymerization boundaries in projected boundary pixels to be controlled to achieve preserved image features in a three-dimensional object and smooth 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. Software is used to control intensity parameters applied to pixels to be illuminated in the image projected in the cross-section being exposed in the image plane.

摘要翻译： 一种固体成像装置和方法，其采用灰度或时间变化的曝光程度，或者在可凝固的光致聚合物构建材料上的三维物体的横截面的数字光投影图像。 投影像素的灰度级曝光允许控制投影边界像素中的聚合边界，以实现三维物体中保存的图像特征，并平滑粗糙或不均匀的边缘，否则将使用数字投影仪发生的限制。 图像中的像素数量投影在图像的大小上。 软件用于控制应用于在图像平面中暴露的横截面中投影的图像中要照明的像素的强度参数。

公开(公告)号：US20100098835A1

公开(公告)日：2010-04-22

申请号：US12254579

申请日：2008-10-20

申请人： Hongqing V. Wang ,  Soon-Chun Kuek ,  Charles W. Hull ,  Richard Ora Gregory, II ,  Thomas Alan Kerekes

发明人： Hongqing V. Wang ,  Soon-Chun Kuek ,  Charles W. Hull ,  Richard Ora Gregory, II ,  Thomas Alan Kerekes

IPC分类号： B05D3/06 ,  C23C16/52 ,  B05C9/12 ,  B05C11/00

CPC分类号： B29C64/129 ,  B05C9/12 ,  B33Y10/00 ,  B33Y40/00 ,  B33Y50/00

摘要： There is provided methods and apparatus for compensation of intensity profiles of imagers used in three-dimensional modelers. The intensity profile of the actinic radiation projected from the imager is determined by a variety of techniques, including but not limited to manually operated sensors, exposed and scanned actinic radiation-sensitive paper, and intensity profilers. Once the intensity profile of the imager is determined, each layer of the solidifiable liquid material is cured by projecting a plurality of patterns (as opposed to a single pattern) defining the two-dimensional cross-section of the part being cured. The patterns vary in duration, number, and/or shape to correlate to the intensity profile so that a single layer of selectively cured solidifiable liquid material is cured with a substantially equivalent (or otherwise controlled) amount of actinic radiation per unit of surface area to provide generally controlled and consistent part quality.

摘要翻译： 提供了用于补偿三维建模者中使用的成像器的强度分布的方法和装置。 通过各种技术确定从成像仪投射的光化辐射的强度分布，包括但不限于手动操作的传感器，曝光和扫描的光化辐射敏感纸以及强度分析仪。 一旦确定了成像器的强度分布，则通过突出限定正在固化的部件的二维横截面的多个图案（与单个图案相对），固化每一层可固化液体材料。 这些图案的持续时间，数量和/或形状在持续时间，数量和/或形状方面不同，以与强度分布相关联，使得单层选择性固化的可固化液体材料以每单位表面积基本相等（或以其他方式控制）的光化辐射固化， 提供一般控制和一致的零件质量。

公开(公告)号：US09415544B2

公开(公告)日：2016-08-16

申请号：US11468090

申请日：2006-08-29

申请人： Thomas Alan Kerekes ,  Jouni P. Partanen ,  Yong Chen ,  Charles W. Hull

发明人： Thomas Alan Kerekes ,  Jouni P. Partanen ,  Yong Chen ,  Charles W. Hull

IPC分类号： B29C67/00

CPC分类号： B29C67/0066 ,  B29C64/135 ,  B29C64/386 ,  B29C64/40 ,  B29K2995/0073 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B33Y70/00 ,  B33Y80/00 ,  G05B19/4099 ,  G05B2219/49019

摘要： A solid imaging apparatus and method employing levels of exposure varied with gray scale or time or both of digitally light projected image of a cross-section of a three-dimensional object on a solidifiable photopolymer build material. The gray scale levels of exposure of projected pixels permits the polymerization boundaries in projected boundary pixels to be controlled to achieve preserved image features in a three-dimensional object and smooth 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. Software is used to control intensity parameters applied to pixels to be illuminated in the image projected in the cross-section being exposed in the image plane.

摘要翻译： 一种固体成像装置和方法，其采用灰度或时间变化的曝光程度，或者在可凝固的光致聚合物构建材料上的三维物体的横截面的数字光投影图像。 投影像素的灰度级曝光允许控制投影边界像素中的聚合边界，以实现三维物体中保存的图像特征，并平滑粗糙或不均匀的边缘，否则将使用数字投影仪发生的限制。 图像中的像素数量投影在图像的大小上。 软件用于控制应用于在图像平面中暴露的横截面中投影的图像中要照明的像素的强度参数。

公开(公告)号：US08568646B2

公开(公告)日：2013-10-29

申请号：US13238166

申请日：2011-09-21

申请人： Hongqing V. Wang ,  Soon-Chun Kuek ,  Charles W. Hull ,  Richard Ora Gregory, II ,  Thomas Alan Kerekes

发明人： Hongqing V. Wang ,  Soon-Chun Kuek ,  Charles W. Hull ,  Richard Ora Gregory, II ,  Thomas Alan Kerekes

IPC分类号： B29C35/04

CPC分类号： B29C64/129 ,  B05C9/12 ,  B33Y10/00 ,  B33Y40/00 ,  B33Y50/00

摘要： There is provided methods and apparatus for compensation of intensity profiles of imagers used in three-dimensional modelers. The intensity profile of the actinic radiation projected from the imager is determined by a variety of techniques, including but not limited to manually operated sensors, exposed and scanned actinic radiation-sensitive paper, and intensity profilers. Once the intensity profile of the imager is determined, each layer of the solidifiable liquid material is cured by projecting a plurality of patterns (as opposed to a single pattern) defining the two-dimensional cross-section of the part being cured. The patterns vary in duration, number, and/or shape to correlate to the intensity profile so that a single layer of selectively cured solidifiable liquid material is cured with a substantially equivalent (or otherwise controlled) amount of actinic radiation per unit of surface area to provide generally controlled and consistent part quality.

摘要翻译： 提供了用于补偿三维建模者中使用的成像器的强度分布的方法和装置。 通过各种技术确定从成像仪投射的光化辐射的强度分布，包括但不限于手动操作的传感器，曝光和扫描的光化辐射敏感纸以及强度分析仪。 一旦确定了成像器的强度分布，则通过突出限定正在固化的部件的二维横截面的多个图案（与单个图案相对），固化每一层可固化液体材料。 这些图案的持续时间，数量和/或形状在持续时间，数量和/或形状方面不同，以与强度分布相关联，使得单层选择性固化的可固化液体材料以每单位表面积基本相等（或以其他方式控制）的光化辐射固化， 提供一般控制和一致的零件质量。

公开(公告)号：US20120007288A1

公开(公告)日：2012-01-12

申请号：US13238166

申请日：2011-09-21

申请人： Hongqing V. Wang ,  Soon-Chun Kuek ,  Charles W. Hull ,  Richard Ora Gregory, II ,  Thomas Alan Kerekes

发明人： Hongqing V. Wang ,  Soon-Chun Kuek ,  Charles W. Hull ,  Richard Ora Gregory, II ,  Thomas Alan Kerekes

IPC分类号： B29C35/08

CPC分类号： B29C64/129 ,  B05C9/12 ,  B33Y10/00 ,  B33Y40/00 ,  B33Y50/00

摘要： There is provided methods and apparatus for compensation of intensity profiles of imagers used in three-dimensional modelers. The intensity profile of the actinic radiation projected from the imager is determined by a variety of techniques, including but not limited to manually operated sensors, exposed and scanned actinic radiation-sensitive paper, and intensity profilers. Once the intensity profile of the imager is determined, each layer of the solidifiable liquid material is cured by projecting a plurality of patterns (as opposed to a single pattern) defining the two-dimensional cross-section of the part being cured. The patterns vary in duration, number, and/or shape to correlate to the intensity profile so that a single layer of selectively cured solidifiable liquid material is cured with a substantially equivalent (or otherwise controlled) amount of actinic radiation per unit of surface area to provide generally controlled and consistent part quality.

摘要翻译： 提供了用于补偿三维建模者中使用的成像器的强度分布的方法和装置。 通过各种技术确定从成像仪投射的光化辐射的强度分布，包括但不限于手动操作的传感器，曝光和扫描的光化辐射敏感纸以及强度分析仪。 一旦确定了成像器的强度分布，则通过突出限定正在固化的部件的二维横截面的多个图案（与单个图案相对），固化每一层可固化液体材料。 这些图案的持续时间，数量和/或形状在持续时间，数量和/或形状方面不同，以与强度分布相关联，使得单层选择性固化的可固化液体材料以每单位表面积基本相等（或以其他方式控制）的光化辐射固化， 提供一般控制和一致的零件质量。