3 ms·
I won't discount the other utilities of NIR night vision but for the purposes of detecting incoming infantry, it's overkill. Give me a cheap-ass webcam, a raps
by oliwarner 9y ago
I won't discount the other utilities of NIR night vision but for the purposes of detecting incoming infantry, it's overkill.
Give me a cheap-ass webcam, a rapsberry pi 3 and a day or two to cobble together an OpenCV beam-detecting program in Python. A day or two more —perhaps with better hardware— and I'll give you GIS-aided positioning. That seems like it would be enough to defend a position.
Even at other wavelengths, the sensor equipment is out there. I'm not sure what the SNR would be like on a varied focus 0.4μm (~bluray) sensor though.
- int_19h 9y agoThe point is that the laser will likely be infrared. And it might well be of a kind that you can't easily source sensors for.
- oliwarner 9y agoSorry, I'd switched to the side of the visible spectrum because a $2 webcam off ebay with its IR filter removed will pick up 830nm IR. That's what the AN/PEQ-2A uses. CMOS sensors pick up all sorts.