Design of polyhedral microlens array of brittle materials based on meridional plane integral

Yuhan Wang; Lingbao Kong

doi:10.1117/12.3009039

29 December 2023 Design of polyhedral microlens array of brittle materials based on meridional plane integral

Yuhan Wang, Lingbao Kong

Proceedings Volume 12976, Eighth Asia Pacific Conference on Optics Manufacture and Third International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2023); 129760Y (2023) https://doi.org/10.1117/12.3009039
Event: 8th Asia Pacific Conference on Optics Manufacture & 3rd International Forum of Young Scientists on Advanced Optical Manufacturing, 2023, Shenzhen, China

Abstract

Various applications of microlens arrays in optical measurement, optical sensors, digital displays, optical communications and other fields have attracted widespread attention, among which it is always difficult to directly machine those convex microlens array made of brittle materials. Polyhedral microlens array is relatively easy to be generated; however, there are few researches found on the design of polyhedral lenses. In this paper, the method of meridional plane integral is proposed for the design of polyhedral microlens array. For a square aperture microlens array that fits the detector pixel shape, the method firstly determines the limit of its light boundary conditions on the vector height and then analyzes each meridional plane to form the final optimal design result using the multi-surface integral. The results show a better focusing effect under multiple fields of view, with a central 0-degree field of view where the spot is focused to within 17% and an edge 5-degree field of view where the same degree of focus is obtained. Meanwhile, the filling factor is theoretically 100%. The research is helpful for new design of microlens arrays considering the manufacturing capability.

Citation Download Citation

Yuhan Wang and Lingbao Kong "Design of polyhedral microlens array of brittle materials based on meridional plane integral", Proc. SPIE 12976, Eighth Asia Pacific Conference on Optics Manufacture and Third International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2023), 129760Y (29 December 2023); https://doi.org/10.1117/12.3009039

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KEYWORDS

Design and modelling

Microlens array

Lenses

Reflection

Fabrication

Refractive index

Incident light

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