Enhancing the design by optimizing MTF performance of MLA with overlapping aperture

Abstract In this paper, we introduced a novel microlens array (MLA) design approach with the use of overlapped apertures. The chief ray tracing and paraxial imaging optics are utilised in projection imaging analysis. This work makes MLA structure design requirements more flexible. The proposed desig...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 2335; no. 1; pp. 12032 - 12039
Main Authors Sreenivasulu, Medara, Vijay Kumar Gowda, B N, Maik, Vivek
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.09.2022
Subjects
aperture
Apertures
Design improvements
Design optimization
FOV
Imaging
Microlens array
Microlenses
Modulation transfer function
MTF
Optical communication
Physics
projection imaging
Ray tracing
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Summary:Abstract In this paper, we introduced a novel microlens array (MLA) design approach with the use of overlapped apertures. The chief ray tracing and paraxial imaging optics are utilised in projection imaging analysis. This work makes MLA structure design requirements more flexible. The proposed design is small and compact. It provides homogeneous illumination over the whole field of view (FOV). In the demonstration, a comparison of the sample 3x3 MLA projector and the proposed 3x3 MLA projector with the same aperture size is illustrated with the help of overlapped apertures. Finally, the proposed MLA projection imaging simulations are accomplished. It substantially outperforms the basic design in terms of FOV and modulation transfer function (MTF). We performed comparative analysis for proposed design with the help of diffraction MTF analysis tool. Our research will aid in the development and exploration of more efficient and advanced compact MLA projection optical systems.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2335/1/012032