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Review on Fabrication Technologies for Optical Mold Inserts

Hahn-Schickard, Allmandring 9b, 70569 Stuttgart, Germany
Institute for Micro Integration (IFM), University of Stuttgart, Allmandring 9 b, 70569 Stuttgart, Germany
Author to whom correspondence should be addressed.
Micromachines 2019, 10(4), 233;
Received: 6 February 2019 / Revised: 1 April 2019 / Accepted: 2 April 2019 / Published: 3 April 2019
PDF [7408 KB, uploaded 17 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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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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

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