I would hazard a guess that every camera lens you own and every camera that has ever had you in its field of view has likely been used to sequentially map your physical location as far back as possible. And this probably goes for everyone and every lens on a device that has any sort of wireless transmitting capability and yes I mean every.

This might seem like a lot of data, and you are correct. However, if you look into data center capability and storage capacity, I don’t think it is even unlikely that this is occurring. Storage and Synthesis

That being said, traditional lenses and light spectrums are only part of the capability of modern imaging technology so the following could, in theory, be used for imaging capability as well. Even if they don’t have a traditional lens.

Infrared blaster (IR) in TV remote receiver acting as thermal camera or go no/go to detect movement/presence

IR blaster in TV remote

• Receivers installed in