A pixel based solidification model for projection based stereolithography technology
A pixel based solidification model for projection based stereolithography technology
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DOI：
10.1016/j.sna.2012.01.016
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发表时间：
2012-05-01
影响因子：
4.6
通讯作者：
Cho, Dong-Woo
中科院分区：
文献类型：
--
作者：
Kang, Hyun-Wook;Park, Jeong Hun;Cho, Dong-Woo
基于投影的立体光刻技术(PSL)是一种制作三维(3-D)自由结构的强大技术。这项研究开发了一种新的基于像素的PSL固化模型来预测图案化结果。PSL技术使得在一次曝光中创建二维(2-D)图案成为可能，使用能够生成具有微分辨率的2-D图像的动态掩模。然后，可以通过堆叠2-D图案来制造3-D结构。因此，基于像素的建模对于预测图案化结果至关重要，因为在图案化过程中，像素是光照的2-D图像的基本组成部分。本研究建立了一种描述光照图像光强分布的数学模型。该模型通过计算曝光能量来预测凝固形状，并与图案化结果进行了比较。结果表明，我们的模型对于估计使用PSL技术获得的制造结果是非常有用的。(C)2012爱思唯尔B.V.保留所有权利。
Projection-based stereolithography (pSL) is a powerful technique for fabricating three-dimensional (3-D) freeform structures. This study developed a new pixel-based solidification model for pSL to predict the patterning results. pSL technology makes it possible to create a two-dimensional (2-D) pattern in a single exposure, using a dynamic mask capable of generating 2-D images with micro-resolution. Then, a 3-D structure can be fabricated by stacking the 2-D patterns. Therefore, pixel-based modeling is crucial for predicting the patterning results because the pixel is the fundamental component of the illuminated 2-D images in the patterning process. This study constructed a mathematical model to describe the intensity distribution of an illuminated image. The model was used to predict solidified shapes by calculating the exposure energy and compared with patterning results. The findings showed that our model is quite useful for estimating fabrication results obtained using pSL technology. (C) 2012 Elsevier B.V. All rights reserved.