https://doi.org/10.1051/epjconf/202328709048
Ultra-fine grinding as a prerequisite for producing polishable free-form optics
1 Ernst-Abbe University of Applied Sciences Jena, Carl-Zeiss-Promenade 2, 07745 Jena, Germany
2 OST – Eastern Switzerland University of Applied Sciences, Werdenbergstrasse 4, 9471 Buchs, Switzerland
3 Günter Effgen GmbH, Am Teich 3-5, D-55756 Herrstein, Germany
* Corresponding author: oliver.faehnle@ost.ch
Published online: 18 October 2023
In many conventional optical manufacturing processes, lapping is still a standard method to provide polishable surfaces. With the increasing use of CNC technology, efforts are being made to substitute the lapping process in the process chain. The paper presents studies that compare the lapping and fine grinding processes and provide an assessment of the subsequent polishing process. By using fine grinding with resin bond tools, polishing times can be significantly reduced and subsurface damage structures minimized. Ultra-fine grinding is also an important shaping process for the production of complex surface geometries, such as free-form optics.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
