3 ms·
Could you expand on or link the bit about time of flight trickery in fog or rain? c * 1 s / 50,000 is still kilometers, so I’m not sure I understand how this s
by nickparker 8y ago
Could you expand on or link the bit about time of flight trickery in fog or rain?
c * 1 s / 50,000 is still kilometers, so I’m not sure I understand how this shutter can do what sounds like using time of flight to selectively illuminate stuff at a specific depth
- namibj 8y agoNo, the part that can solve this is the fast time from insensitive to sensitive, which is shorter than the time form sensitive to no longer sensitive. You will need a pulse with a short enough duration, e.g. a Q-switched Nd:YAG with frequency doubling giving you up to about a dozen Joules at up to a few hundred Hz with pulse durations of under 50 ns, and, while limited in some ways by breakdown peak power in components, a lower limit of about .5 ns. Most of the shutter time is used to copy the data to the shadow pixel, but just releasing the dark pull won't take long.