Liquid Metal Tech Promises Better Eyes for Robots and Cars

Researchers create adaptive artificial pupil that adjusts to light like biological eyes.

Published on Mar. 7, 2026

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Scientists have developed a new artificial eye that uses a liquid-metal pupil to automatically change size and shape in response to light, helping robots, autonomous vehicles, and other machines see more clearly in rapidly changing environments. The technology is inspired by the adaptive vision of animals and aims to address the limitations of current machine vision systems that struggle with sudden changes in lighting conditions.

Why it matters

Accurate machine vision is critical for emerging technologies like robots, drones, and self-driving cars that must operate in unpredictable real-world conditions. This liquid-metal pupil could reduce the need for complex image-processing algorithms while improving speed and energy efficiency, making it particularly promising for mobile systems.

The details

The artificial eye consists of a hemispherical artificial retina, liquid-metal 'neurons' that convert light signals into electrical pulses, and an adaptive liquid-metal pupil that adjusts the aperture based on those signals. Early tests show the system can significantly improve image recognition accuracy in harsh lighting conditions, increasing from about 68% to over 83% when the adaptive pupil is activated.

  • The study was published in the journal Science Robotics on March 7, 2026.

The players

University of North Carolina at Chapel Hill

The university where some of the researchers who developed the liquid-metal pupil technology are based.

Westlake University

Another institution where researchers involved in the study are affiliated.

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What’s next

Researchers are working on refining the design, including miniaturizing the components, improving energy efficiency, and integrating the system into real-world devices. They also plan to expand the system with additional sensing capabilities, such as color and multispectral imaging, and potentially combine it with tactile or motion sensors.

The takeaway

This liquid-metal pupil technology represents an important step toward machines that can see the world more like humans and animals, allowing robots and vehicles to navigate complex environments with greater awareness and adaptability to changing lighting conditions.