[MisterNegative]

Are they trolling? Those are just some glasses with ir light and ir reflective coating. These will make your face more visible to cameras in the dark. Also facial recognition algorithms can easily be adapted to work around the stupid glow. They only need like 10% of your face anyway.

[iwwr]

This is just a 1% solution, which may be enough to defeat mass data collection as long as it remains niche. For a bigger effect, carry light strong enough to saturate even a HDR camera.

[kefka]

If you remember the old (VHS) Macrovision, it used a pulsing contrast to mess up automatic gain control circuits. A good way to defeat this is by putting a POT on the AGC so you can tune it manually.

A way to apply this to the glasses: put a IR strobe on. Pulse it at .5s, with a .05s IR led on time.

You should be able to get away with this using an array of IRleds, battery, and a 555 timer.

[matthewmacleod]

This is clearly a concept and not a production product — probably more about encouraging discussion regarding privacy in public than about executing on the things it talks about.