| Issue |
EPJ Web Conf.
Volume 266, 2022
EOS Annual Meeting (EOSAM 2022)
|
|
|---|---|---|
| Article Number | 03010 | |
| Number of page(s) | 2 | |
| Section | Topical Meeting (TOM) 3- Optical System Design, Tolerancing and Manufacturing | |
| DOI | https://doi.org/10.1051/epjconf/202226603010 | |
| Published online | 13 October 2022 | |
https://doi.org/10.1051/epjconf/202226603010
Investigations on a novel process chain for manufacturing of freeform surfaces
1 Ernst-Abbe University of Applied Sciences Jena, Carl-Zeiss-Promenade 2, 07745 Jena, Germany
2 Leibniz-Institut für Oberflächenmodifizierung e.V. (IOM), Permoserstrasse 15, 04318 Leipzig, Germany
3 Technical University Ilmenau, Ehrenbergstrasse 29, 98693 Ilmenau, Germany
* Corresponding author: Sebastian.Henkel@eah-jena.de
Published online: 13 October 2022
Freeform optical surfaces have become increasingly important in recent years, as they can be used to construct optical assemblies with a reduced number of optical surfaces compared to systems without freeform surfaces, and thus optical systems can get more compact and lighter. However, the flexible and efficient production of precise optical freeform surfaces poses a major problem. This manifests itself in insufficient precision of the optics, long delivery times and high prices. It is shown, that ultrasonic grinding processes, combined with an ultra-fine grinding process and subsequent plasma jet polishing, are very well suited for the production of freeform optics and have a high technical and economic potential. Therefore, the aim is to validate an industrially suitable process chain based on this combination, in order to produce freeform optics of high accuracy (shape deviations <100 nm RMS) that can be manufactured in significantly fewer steps than before.
© The Authors, published by EDP Sciences
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