Blar i USN Open Archive på forfatter "Abdelmeguid, Mahmoud Ahmed Farghaly"

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    • Modeling and design of piezoelectrically actuated MEMS tunable lenses 

      Abdelmeguid, Mahmoud Ahmed Farghaly (Doctoral dissertations at the University of South-Eastern Norway;76, Doctoral thesis, 2020)
      Autofocus is a crucial feature in cameras, especially when photographing objects at different distances and having them in sharp focus without any quality loss in the captured image. Over the last decade, several research ...

    • Modeling framework for piezoelectrically actuated MEMS tunable lenses 

      Abdelmeguid, Mahmoud Ahmed Farghaly; Akram, Muhammad Nadeem; Halvorsen, Einar (Peer reviewed; Journal article, 2016)
      We report a modeling framework for evaluating the performance of piezoelectrically actuated MEMS tunable lenses. It models the static opto-electromechanical coupling for symmetric configurations of piezoelectric actuators ...

    • Optical performance of piezoelectrically actuated MEMS tunable lenses with various pupil geometries 

      Abdelmeguid, Mahmoud Ahmed Farghaly; Akram, Muhammad Nadeem; Halvorsen, Einar (Journal article; Peer reviewed, 2017)
      Abstract. A square geometry for the diaphragm of microelectromechanical systems (MEMS) tunable lenses with circular pupils is often used. This square diaphragm introduces aberrations that would not be present for a circular ...