公开(公告)号：US5609812A

公开(公告)日：1997-03-11

申请号：US121846

申请日：1993-09-14

申请人： Craig M. Childers ,  Charles W. Hull

发明人： Craig M. Childers ,  Charles W. Hull

IPC分类号： B29C67/00 ,  B29C67/02 ,  B44B1/00 ,  G01J1/42 ,  G03F7/00 ,  G03F7/20 ,  G06T17/00 ,  G06T17/10 ,  G06T17/20 ,  B29C35/08 ,  B29C41/02

CPC分类号： B29C67/0066 ,  B29C67/0092 ,  B29C67/02 ,  B44B1/006 ,  G01J1/4257 ,  G03F7/0037 ,  G03F7/70416 ,  G06T17/00 ,  G06T17/10 ,  G06T17/20 ,  G05B2219/49013 ,  Y10S264/59

摘要： An improved method for stereolithographically making an object by alternating the order in which similar sets of vectors are exposed over two or more layers. In another method, a pattern of tightly packed hexagonal tiles are drawn. Each tile is isolated from its neighboring tiles by specifying breaks of unexposed material between the tiles. Using an interrupted scan method, vectors are drawn with periodic breaks along their lengths. In another method, modulator and scanning techniques are used to reduce exposure problems associated with the acceleration and deceleration of the scanning system when jumping between vectors or changing scanning directions.

公开(公告)号：US5256340A

公开(公告)日：1993-10-26

申请号：US906207

申请日：1992-06-25

申请人： Joseph W. Allison ,  Jan Richter ,  Craig M. Childers ,  Dennis R. Smalley ,  Charles W. Hull ,  Paul F. Jacobs

发明人： Joseph W. Allison ,  Jan Richter ,  Craig M. Childers ,  Dennis R. Smalley ,  Charles W. Hull ,  Paul F. Jacobs

IPC分类号： B29C67/00 ,  B29C67/02 ,  B44B1/00 ,  G01J1/42 ,  G03F7/00 ,  G03F7/20 ,  G06T17/00 ,  G06T17/10 ,  G06T17/20 ,  B29C35/08 ,  B29C41/02

CPC分类号： B29C67/0066 ,  B29C67/0092 ,  B29C67/02 ,  B44B1/006 ,  G01J1/4257 ,  G03F7/0037 ,  G03F7/70416 ,  G06T17/00 ,  G06T17/10 ,  G06T17/20 ,  G05B2219/49013 ,  Y10S264/59

摘要： An improved method for stereolithographically forming a three-dimensional object wherein ordinarily solidified internal walls of the object remain at least partially unsolidified. Any unsolidified medium within the object can be drained from the internal walls of the object prior to post-curing so that a hollow three-dimensional object is formed. The object is formed on a layer by layer basis with the internal portion of each layer of the object formed as a grid of solidified portions and unsolidified portions wherein the solidified and unsolidified portions are different on each layer. Objects formed in this manner can be used as patterns in investment casting.

摘要翻译： 用于立体光刻形成三维物体的改进方法，其中物体的通常凝固的内壁保持至少部分地不固化。 物体内的任何未固化的介质可以在后固化之后从物体的内壁排出，从而形成中空的三维物体。 该物体是以形成为固化部分网格的每个物体的内部部分和未固化部分逐层形成的，其中固化和非固化部分在每层上是不同的。 以这种方式形成的物体可以用作熔模铸造中的图案。

公开(公告)号：US5182055A

公开(公告)日：1993-01-26

申请号：US702031

申请日：1991-05-17

申请人： Joseph W. Allison ,  Jan Richter ,  Craig M. Childers ,  Dennis R. Smalley ,  Charles W. Hull ,  Paul F. Jacobs

发明人： Joseph W. Allison ,  Jan Richter ,  Craig M. Childers ,  Dennis R. Smalley ,  Charles W. Hull ,  Paul F. Jacobs

IPC分类号： B29C67/00 ,  B29C67/02 ,  G01J1/42 ,  G03F7/00 ,  G03F7/20 ,  G06T17/00 ,  G06T17/10 ,  G06T17/20

CPC分类号： B29C67/0066 ,  B29C67/0092 ,  B29C67/02 ,  G01J1/4257 ,  G03F7/0037 ,  G03F7/70375 ,  G03F7/70416 ,  G06T17/00 ,  G06T17/10 ,  G06T17/20 ,  G05B2219/49013 ,  Y10S264/59

摘要： An improved method for stereolithographically making an object by alternating the order in which similar sets of vectors are exposed over two or more layers. In another method, a pattern of tightly packed hexagonal tiles are drawn. Each tile is isolated from its neighboring tiles by specifying breaks of unexposed material between the tiles. Using an interrupted scan method, vectors are drawn with periodic breaks along their lengths. In another method, modulator and scanning techniques are used to reduce exposure problems associated with the acceleration and deceleration of the scanning system when jumping between vectors or changing scanning directions.

摘要翻译： 通过交替在两个或多个层上暴露相似的矢量集合的顺序来立体定向制作物体的改进方法。 在另一种方法中，绘制紧密包装的六边形瓦片的图案。 通过指定瓷砖之间未曝光材料的断裂，每个瓷砖与其相邻的瓷砖隔离。 使用中断的扫描方法，沿其长度绘制周期性断点的向量。 在另一种方法中，调制器和扫描技术用于在向量之间跳跃或改变扫描方向时减少与扫描系统的加速和减速有关的暴露问题。