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    Researchers developed a thin, wide-angle camera module using two lenses, inspired by insect and human eyes. This novel design achieves a 136° field of view in a compact 2.7 mm thick camera, outperforming traditional multi-lens systems.

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    Area of Science:

    • Optics and Photonics
    • Biomimetic Engineering
    • Camera Module Design

    Background:

    • Traditional mobile phone cameras often require multiple lenses to achieve a wide field of view.
    • Existing wide-angle camera modules can be bulky and thick, limiting their integration into compact devices.
    • Mimicking biological visual systems offers potential for novel optical designs.

    Purpose of the Study:

    • To propose a novel, thin, wide-angle camera module.
    • To integrate principles from insect compound eyes and human eyes for optical design.
    • To achieve a wide full field of view (FFOV) with minimal lens elements and thickness.

    Main Methods:

    • Designed a camera module incorporating a curved hexagonal microlens array (insect eye principle) and a hemispherical lens (human eye principle).
    • Utilized a two-lens system to achieve a wide FFOV.
    • Fabricated and characterized the camera module's thickness, f-number, image diameter, and FFOV.

    Main Results:

    • The proposed camera module has a thickness of only 2.7 mm.
    • Achieved a diagonal FFOV of 136° using only two lenses.
    • Demonstrated good image quality with a modulation transfer function > 0.3 at 166 cycles/mm.

    Conclusions:

    • The biomimetic camera module offers a compact and effective solution for wide-angle imaging.
    • The two-lens design successfully achieves a wide FFOV, surpassing limitations of conventional multi-lens systems.
    • This technology has potential applications in mobile devices and other compact imaging systems.