View attachment 44422
PjBrown58.
The P3 uses a CMOS (Sony Exmor) sensor. All CMOS sensors are IR sensitive. Also in mobiles, tablets, etc.
In the picture you can see the IR LED from a remote.
They contain a IR filter to block the IR. You could modify a camera by removing it, but you might need to modify the optics as well (focal length changes). I have done that in the past with other sensors.
Then you also need some strong IR LEDS.
Even nicer would be a heat sensitive sensor (bolometer). These become rapidly cheaper and don't need IR LEDs. You can buy a
flirone for a few hundred $.
It would be nice to have a drone with night vision, but flying at night is not allowed.