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FOV adjustable liquid lens driven by electrowetting effect.

Wenqi Yin, Ziyuan Wang, Lei Li

    Optics Express
    |November 14, 2024
    PubMed
    Summary
    This summary is machine-generated.

    This study presents an electrowetting-driven liquid lens with adjustable field of view (FOV). This novel lens offers simple structure and miniaturized drive for focal length adjustment and FOV deflection.

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    Area of Science:

    • Optics and Photonics
    • Microfluidics
    • Electromechanical Systems

    Background:

    • Liquid lenses offer tunable optical properties.
    • Electrowetting is a method to control liquid interfaces with electric fields.
    • Adjustable field of view (FOV) is crucial for advanced imaging systems.

    Purpose of the Study:

    • To demonstrate a novel field of view (FOV) adjustable liquid lens.
    • To achieve focal length adjustment and FOV deflection using electrowetting.
    • To develop a compact and easily driven liquid lens solution.

    Main Methods:

    • Fabrication of a liquid lens comprising window glass, electrodes, and a deflectable aperture.
    • Utilizing electrowetting to manipulate the liquid-liquid interface.
    • Applying voltages to sidewall electrodes for optical power and FOV control.

    Main Results:

    • The liquid lens demonstrated an aperture of 9 mm.
    • Achieved an optical power range from -21 m⁻¹ to -7 m⁻¹.
    • Obtained a liquid-liquid (L-L) surface tilt angle of approximately 18° (± 9°).

    Conclusions:

    • The proposed liquid lens features a simple structure and miniaturized drive.
    • It enables both focal length adjustment and FOV deflection.
    • The lens shows significant potential for scanning, imaging, and inspection applications.