<ul><li>A research team at Seoul National University has developed a metasurface-based folded lens system for ultrathin cameras.</li><li>The metasurface folded optics enable exceptional control of light while maintaining thicknesses of less than a millimeter.</li><li>The lens system utilizes metasurfaces placed horizontally on a glass wafer, allowing for multiple folded diagonal light paths.</li><li>Potential applications include slimline cameras for smartphones, augmented/virtual reality devices, and miniaturized microscopes.</li></ul>

Lens breakthrough paves the way for ultrathin cameras

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