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Review on Fabrication Technologies for Optical Mold Inserts

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Hahn-Schickard, Allmandring 9b, 70569 Stuttgart, Germany
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Institute for Micro Integration (IFM), University of Stuttgart, Allmandring 9 b, 70569 Stuttgart, Germany
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Author to whom correspondence should be addressed.
Micromachines 2019, 10(4), 233; https://doi.org/10.3390/mi10040233
Received: 6 February 2019 / Revised: 1 April 2019 / Accepted: 2 April 2019 / Published: 3 April 2019
Polymer optics have gained increasing importance in recent years. With advancing requirements for the optical components, the fabrication process remains a challenge. In particular, the fabrication of the mold inserts for the replication process is crucial for obtaining high-quality optical components. This review focuses on fabrication technologies for optical mold inserts. Thereby, two main types of technologies can be distinguished: fabrication methods to create mold inserts with optical surface quality and methods to create optical microstructures. Since optical mold inserts usually require outstanding form accuracies and surface qualities, a focus is placed on these factors. This review aims to give an overview of available methods as well as support the selection process when a fabrication technology is needed for a defined application. Furthermore, references are given to detailed descriptions of each technology if a deeper understanding of the processes is required. View Full-Text
Keywords: optical mold inserts; micro machining; micro structuring; ultra-precision machining; mold fabrication optical mold inserts; micro machining; micro structuring; ultra-precision machining; mold fabrication
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MDPI and ACS Style

Roeder, M.; Guenther, T.; Zimmermann, A. Review on Fabrication Technologies for Optical Mold Inserts. Micromachines 2019, 10, 233.

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