Tiny cameras could hide almost anywhere

Hello, surveillance state!

Engineers have previously investigated the possibility of having a camera sensor power itself with the same light that falls on it. After all, it’s basically just two different functions of a photovoltaic cell — one stores the energy that falls on it while the other records how much energy fell on it.

Source: Under a millimeter wide and powered by light, these tiny cameras could hide almost anywhere | TechCrunch

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