公开(公告)号：US20160332368A1

公开(公告)日：2016-11-17

申请号：US15222522

申请日：2016-07-28

Applicant: 3D Systems, Inc.

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

IPC: B29C67/00 ,  B33Y50/02 ,  G05B19/4099 ,  B33Y70/00 ,  B33Y80/00 ,  B33Y30/00 ,  B33Y40/00

CPC classification number: B33Y80/00 ,  B29C64/135 ,  B29C64/386 ,  B29C64/40 ,  B29K2995/0073 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B33Y70/00 ,  G05B19/4099 ,  G05B2219/49019

Abstract: 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.

Abstract translation: 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。