4 ms·
The camera records a single scan line from a bunch of different pulses to capture the length of time they need for that scanline. Then they rotate the mirror an
by NegativeK 15y ago
The camera records a single scan line from a bunch of different pulses to capture the length of time they need for that scanline. Then they rotate the mirror and capture the next scan line. After that, they reconstruct the video in software. It relies on the regularity of the laser pulse to be accurate. They aren't capturing a real movie, but an aggregate description of how light moves across a scene.
Regarding the "seeing a photon," it's just an analogy.
- JoeAltmaier 15y agoAn analogy they repeat three times. And its just plain false every time. In fact, I'm not sure at all what the analogy is supposed to help us understand. We're not seeing a photon as it moves through space; so why say we are? We're seeing light reflected off of an object; what makes this different from any other camera that does the same thing? Its faster? Then say something to help me understand how that changes things.
- sp332 15y agoWe're seeing the way a pulse of photons move through space. So you can see how long it takes for a photon to diffuse through a plastic bottle. You can't see that with other cameras.