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Scientists Create Smallest Camera as Small as a Grain Of Salt

by Kamlesh Bhati
December 2, 2021
Scientists Create Smallest Camera
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Scientists Create Smallest Camera

Can you imagine how small is the smallest camera would have to be? Researchers from Princeton and the University of Washington in the United States published research results in Nature, they made a miniature imaging system only the size of a grain of salt, and its image quality is comparable to that of a professional camera with a 500,000 times larger lens.

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Scientists Create Smallest Camera

It is reported that the imaging element is achieved by integrating 1.6 million light columns on the super configuration surface (Metasurface), which works just like a camera CMOS. Each of these light pillars receives optical information, forming forward light waves that generate full-color images with the help of artificial intelligence technology. The Metasurface also has trace elements that refract light to any desired direction.

This camera solves the challenges of miniature cameras in terms of image quality: distortion, blur, and limited field of view. It will lay the groundwork for the introduction of ultra-small robots that can explore their surroundings and even help doctors to see what’s going on inside a patient’s body.

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Scientists Create Smallest Camera

The information shows that the Metasurface is an emerging subwavelength artificial electromagnetic structure with a characteristic size smaller than the wavelength of the electromagnetic wave with which it acts. Through artificially designed structural arrangement and material composition, super configurable surfaces can achieve anomalous electromagnetic responses in two dimensions that are difficult to achieve with traditional natural materials and composites, raising the degree of freedom of human regulation of electromagnetic waves to a new level.

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