https://doi.org/10.1051/epjconf/201921504001
Economical rapid-prototyping of aspherical lenses
University of Freiburg, IMTEK Department of Microsystems Engineering, Laboratory for Microactuators, Freiburg, Germany
* Corresponding author: wallrabe@imtek.uni-freiburg.de
Published online: 10 September 2019
We present a rapid-prototyping process to fabricate aspherical lens arrays based on surface deformation due to thermal expansion of PDMS. Using laser-structuring and molding in combination with an FEM-based shape optimization, we were able to design, fabricate and characterize different micro-lens arrays. This fabrication process can be used for almost any kind of arbitrary lens shape, which allows for a large design freedom for micro lenses.
© The Authors, published by EDP Sciences, 2019
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.
