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Quantification of Oculomotor Responses and Accommodation Through Instrumentation and Analysis Toolboxes
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Bio-inspired variable imaging system simplified to the essentials: modelling accommodation and gaze movement.

Erik Förster, Moritz Stürmer, Ulrike Wallrabe

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    This study presents a novel optical system with variable focus, mimicking the human eye using a hybrid lens and fluidic membrane. This design achieves light sensitivity and wide-aperture imaging with improved image quality across fields of view.

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    Area of Science:

    • Optics
    • Biomedical Engineering
    • Ophthalmology

    Background:

    • Vertebrate eyes utilize a cornea for fixed power and a flexible lens for accommodation.
    • Image quality in optical systems can degrade with increasing field of view.
    • Mimicking natural eye functions can lead to advanced optical system designs.

    Purpose of the Study:

    • To develop a light-sensitive, wide-aperture optical system with variable focus.
    • To emulate the accommodative function of the vertebrate eye.
    • To compensate for image quality decay at wider fields of view.

    Main Methods:

    • Integration of an aspherical hybrid diffractive-refractive lens with a fluidic membrane lens.
    • Design and implementation of an optical system inspired by the human eye's structure and function.
    • Utilizing successive tilting angles to mimic saccadic eye movements for image correction.

    Main Results:

    • Successful implementation of a variable focus optical system.
    • Demonstration of light sensitivity and wide-aperture capabilities.
    • Effective compensation for image quality degradation across the field of view.

    Conclusions:

    • The hybrid lens and fluidic membrane approach offers a viable method for creating advanced optical systems.
    • The biomimetic design successfully replicates key functionalities of the vertebrate eye.
    • This technology holds potential for applications requiring adaptable and high-quality imaging.