2 GS/s is insanely fast. Just as a single example the input has to be so sensitive that it can detect *single photons*, and respond so fast that multiple samples are *in the cable* at the same time.
Guess it depends on how you define "frames." If each pixel is a frame? Sure, I guess, then you combine a bunch of "frames" to make a composite image (an actual frame). But yea considering he has to take about a million pixels while pulsing the laser to generate a single *actual* frame.
Then again, CRT TVs kinda worked on the same principle - beaming a point of light at the TV and scanning it back and forth/top-bottom really fast. And you would still call each finished... "rendering(?)" of the beam's path a "frame."
Yeah it’s certainly cool for sure. But it’s not accurate to call it a “2 billion fps video camera” like in OPs title. That would be truly impressive if it was.
But it's just a single pixel sensor he bought online that he points in different directions and then combines to make a "video".
But the idea of using it in this way for entertainment is still pretty clever.
Then again, CRT TVs kinda worked on the same principle - beaming a point of light at the TV and scanning it back and forth/top-bottom really fast. And you would still call each finished... "rendering(?)" of the beam's path a "frame."
Sure, I'll give it to him for the cool points.