Design of a Miniaturized Wide-Angle Fisheye Lens Based on Deep Learning and Optimization Techniques

Chuen Lin Tien, Chun Yu Chiang, Wen Shing Sun

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

This paper presents the optimization design of a miniaturized five-element wide-angle fisheye lens using a deep learning algorithm. Zemax optical design software was used to simulate and optimize the wide-angle fisheye lens. A deep learning algorithm helped to find the best combination of different lens materials. We first used six lens elements as an initial configuration to design miniaturized wide-angle fisheye lenses using the optimization process. The optical system components were gradually decreased to five lens elements. Both OKP4HT and polymethyl methacrylate (PMMA) plastic aspheric lenses were selected to replace the second spherical glass lens in the original design. We propose two types of wide-angle fisheye lens designs with four spherical lenses and one aspheric lens. The results for these designs indicated a viewing angle of 174°, a total length of less than 15 mm, a spot size of less than 6 μm, lateral color within ±1 μm, field curvature within ±0.02 mm, and F-θ distortion of ±3.5%. In addition, the MTF value was larger than 0.4 at the spatial frequency of 100 cycles/mm.

Original languageEnglish
Article number1409
JournalMicromachines
Volume13
Issue number9
DOIs
StatePublished - Sep 2022

Keywords

  • deep learning algorithm
  • modulation transfer function (MTF)
  • optimization design
  • wide-angle fisheye lens

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