Micro-3D-printed multi-aperture freeform ultra-wide-angle systems: production, characterization, and correction

Johannes Drozella; Andrea Toulouse; Pascal Motzfeld; Nils Fahrbach; Valese Aslani; Simon Thiele; Alois M. Herkommer; Harald Giessen

doi:10.1117/12.2609844

4 March 2022 Micro-3D-printed multi-aperture freeform ultra-wide-angle systems: production, characterization, and correction

Johannes Drozella, Andrea Toulouse, Pascal Motzfeld, Nils Fahrbach, Valese Aslani, Simon Thiele, Alois M. Herkommer, Harald Giessen

Author Affiliations +

Proceedings Volume 11989, Laser-based Micro- and Nanoprocessing XVI; 119890V (2022) https://doi.org/10.1117/12.2609844
Event: SPIE LASE, 2022, San Francisco, California, United States

Abstract

Modern two-photon-polymerization 3D printing technology allows for the creation of almost arbitrary threedimensional structures for the production of complex freeform optical surfaces. While being highly controllable and accurate to below 100 nm some systematic deviation by volumetric changes during the polymerization and development process remains. This can however be corrected for when the surface deviation is known. We present a method to include repeatable measurements and the consequent shape correction during the production process of monolithically created complex freeform lens systems. Measurement concepts as well as consequences to shape improvements are shown. An example for the application of such corrections for the creation of low profile multi-aperture large field of view objectives is presented.

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Johannes Drozella, Andrea Toulouse, Pascal Motzfeld, Nils Fahrbach, Valese Aslani, Simon Thiele, Alois M. Herkommer, and Harald Giessen "Micro-3D-printed multi-aperture freeform ultra-wide-angle systems: production, characterization, and correction", Proc. SPIE 11989, Laser-based Micro- and Nanoprocessing XVI, 119890V (4 March 2022); https://doi.org/10.1117/12.2609844

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