Manufacturing acceleration of free-form micro-optical arrays (FMOAs) with CAD algorithms

Frédéric Zanella; Oscar Fernandez; Ton Offermans; Tamara Aderneuer; Julio Chaves; Ruben Mohedano; Guillaume Basset

doi:10.1117/12.2647854

15 March 2023 Manufacturing acceleration of free-form micro-optical arrays (FMOAs) with CAD algorithms

Frédéric Zanella, Oscar Fernandez, Ton Offermans, Tamara Aderneuer, Julio Chaves, Ruben Mohedano, Guillaume Basset

Proceedings Volume 12433, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XVI; 124330F (2023) https://doi.org/10.1117/12.2647854
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

Freeform micro-optical arrays (FMOAs) can overcome some limitations of rotationally symmetric optical components. The manufacturability assessment for FMOA designs containing many freeform elements is demanding. We present computer-aided design (CAD) tools that analyze FMOA designs for manufacturing constraints. They 1) extract the height (Sag) and 2) local slope while highlighting areas beyond manufacturing limits, 3) extract the minimum tool radius and 4) convert CADs into ray traceable solids using NURBS for performance comparison of the actual micro-structure to the design. Critical parameters can be identified early, reducing time-consuming and costly adjustments later.

Conference Presentation

Citation Download Citation

Frédéric Zanella, Oscar Fernandez, Ton Offermans, Tamara Aderneuer, Julio Chaves, Ruben Mohedano, and Guillaume Basset "Manufacturing acceleration of free-form micro-optical arrays (FMOAs) with CAD algorithms", Proc. SPIE 12433, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XVI, 124330F (15 March 2023); https://doi.org/10.1117/12.2647854

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