Direct manufacturing of micro lens arrays via laser-ablation and -polishing

Martin Kahle; Daniel Conrad; Stefan Fricke; Larissa Wilkens

doi:10.1117/12.2631713

15 July 2022 Direct manufacturing of micro lens arrays via laser-ablation and -polishing

Martin Kahle, Daniel Conrad, Stefan Fricke, Larissa Wilkens

Proceedings Volume 12298, Ninth European Seminar on Precision Optics Manufacturing; 1229802 (2022) https://doi.org/10.1117/12.2631713
Event: Ninth European Seminar on Precision Optics Manufacturing, 2022, Teisnach, Germany

Abstract

Micro lens arrays made of glass are optical components which, due to their complexity, can fulfill the function of many larger lenses at the same time. Optical arrangements can thus be miniaturized and made lighter. The production of such elements can be a challenge, especially for medium and small quantities. Therefore, at the ifw Jena, two direct production methods of such elements are being investigated: laser ablation with ultrashort pulsed (USP) lasers and ablation with a short-pulsed CO₂-laser respectively polished with a cw-CO₂ laser. The experiments show a good homogeneity of the lenses as well as a high process speed.

Citation Download Citation

Martin Kahle, Daniel Conrad, Stefan Fricke, and Larissa Wilkens "Direct manufacturing of micro lens arrays via laser-ablation and -polishing", Proc. SPIE 12298, Ninth European Seminar on Precision Optics Manufacturing, 1229802 (15 July 2022); https://doi.org/10.1117/12.2631713

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