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Injection moulding of plastic parts with laser textured surfaces with optical applications

机译：具有激光纹理表面的塑料零件的注塑成型和光学应用

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摘要

The purpose of this work is to manufacture micro and nanotextured surfaces on plastic injection moulds with the aim of replicating them and obtaining plastic parts with optical applications. Different patterns are manufactured with nanosecond and femtosecond lasers in order to obtain three different optical applications: (i) homogeneous light diffusion (ii) 1D light directionality and (iii) 2D light directionality. Induction heating is used in the injections in order to improve the textures degree of replication. The steel mould and the plastic parts are analyzed with a confocal/focus variation microscope and with a surface roughness tester. A mock-up and a luminance camera are used to evaluate the homogeneity and luminance of the homogeneous light diffusion application in comparison with the current industrial solutions.
机译：这项工作的目的是在塑料注塑模具上制造微米和纳米纹理表面，以复制它们并在光学应用中获得塑料零件。为了获得三种不同的光学应用，用纳秒和飞秒激光器制造了不同的图案：（i）均匀的光扩散（ii）一维光方向性和（iii）二维光方向性。在注射中使用感应加热，以改善纹理的复制度。使用共聚焦/聚焦变化显微镜和表面粗糙度测试仪分析钢模具和塑料零件。与目前的工业解决方案相比，模型和亮度相机用于评估均匀光扩散应用的均匀性和亮度。

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