Development of Three-dimensional Micro- Rapid Prototyping Technique using Highspeed Confocal Scanner and Flow Measurement of Micro- Multiphase Flow

在这项研究中，我们开发了一种在微通道中快速制作复杂三维形状的原型技术，用于模型实验中对红细胞行为的阐明。我们提出了一种利用DMD(数字镜片)结合高速共焦扫描仪的三维光刻技术。消除照明不均匀的光学设计通过引入光束均衡器和空间滤光片而特别受到关注，它将整个区域的亮度差减小到10%。由于共焦效应的固化光斑往往比理论共焦深度更厚，因此通过降低激光强度和延长曝光时间来表明发生较薄聚合的可能性。

In this study, we develop a rapid prototyping technique of a complex three-dimensional shape in a microchannel that in mind for use in the model experiment for the behavior elucidation of the red blood cells. We have proposed a three-dimensional lithography using DMD (digital mirror device) in combination with high-speed confocal scanner. The optical design to eliminate the illumination non-uniformity is particularly concerned by introducing a beam homogenizer and spatial filter, and it reduces to 10% the difference in brightness over the entire region. Since the curing spot of confocal effect is tend to be thicker than the theoretical confocal depths, the possibility of thinner polymerization is indicated by decreasing the intensity of the laser and a longer exposure time.