4 March 2019 Super-fine inkjet process for alignment-free integration of non-transparent structures into 3D-printed micro-optics
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Abstract
The performance of microlenses fabricated via femtosecond direct laser writing is insuperably limited with regards to image contrast within its all-transparent material system. Our proposed super-fine inkjet process for the realization of apertures and non-transparent hulls both shields stray light and adds additional optical design parameters, namely diameter, shape, and position of the aperture. A micropinhole camera, a high-contrast imaging microlens, and a telecentric system are demonstrated. Our method is most suitable for 3D-printed micro-optics due to its one-step integration and auto-adjustment of the aperture position and can be useful for highly precise integration of functional materials beyond mere non-transparency.
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Andrea Toulouse, Simon Thiele, Harald Giessen, and Alois M. Herkommer "Super-fine inkjet process for alignment-free integration of non-transparent structures into 3D-printed micro-optics", Proc. SPIE 10930, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XII, 109300W (4 March 2019); doi: 10.1117/12.2513520; https://doi.org/10.1117/12.2513520
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