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    This study presents a compact, eye-inspired imaging system with a tunable lens and aperture. It achieves high performance without wavefront degradation during focal length adjustments.

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    Area of Science:

    • Optics
    • Biomedical Engineering
    • Materials Science

    Background:

    • Traditional compact imaging systems face limitations in adaptability and performance.
    • Mimicking the human eye's optical mechanisms offers a promising approach for advanced imaging solutions.

    Purpose of the Study:

    • To develop and characterize a novel compact imaging system integrating a tunable lens and tunable aperture.
    • To evaluate the imaging performance and wavefront quality of the eye-inspired system.

    Main Methods:

    • The system combines an elastomer lens for focal length tuning and an optofluidic iris for aperture control.
    • Wavefront analysis and modulation transfer function (MTF) were employed to assess imaging quality.

    Main Results:

    • Both individual optical components and the integrated system demonstrated high imaging performance.
    • Crucially, the system maintained excellent wavefront quality (ΔPV<λ/10) even when tuning the focal length over a 5.36% range.

    Conclusions:

    • The developed eye-inspired imaging system offers a compact and high-performance solution.
    • The innovative use of tunable optical materials and mechanisms enables adaptive imaging with minimal optical aberrations.