Researchers Develop a Camera the Size of a Salt Grain

[Tsing]

Image: Princeton University



Researchers at Princeton University and the University of Washington have developed an ultra-compact camera that appears to be ideal for spies and voyeurs.



As detailed in an article on Princeton’s engineering site, the camera, which leverages a technology called a “metasurface,” measures similar to the size of a single grain of salt. Unlike traditional cameras that rely on curved glass or plastic lenses to create images, this tiny metasurface camera uses 1.6 million cylindrical posts (“each roughly the size of the human immunodeficiency virus (HIV)”) for optics.



Image: Princeton University



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