It’s probably duty cycled on and off and compared to a photodiode output on the reflection. Either way the moment that light comes on you’re getting punched if

It’s probably duty cycled on and off and compared to a photodiode output on the reflection. Either way the moment that light comes on you’re getting punched if you point it at the wrong person. I’d rather have my phone hit out of my hand. Google Glass was not welcome and I suspect the same will be true of this.