4 ms·

I think it's more likely to be the other way round, a lot of plastics are semi-transparent to IR, all block UV extremely strongly (as you start ionising electro

by jarvist 12y ago

I think it's more likely to be the other way round, a lot of plastics are semi-transparent to IR, all block UV extremely strongly (as you start ionising electrons). For instance, black PVC electrician's tape is entirely transparent to near-infrared, I use this to cover Xenon flashbulbs & still have an infrared-sensitive trigger fire from them.

lotsofmangos 12y ago
That was my first guess as well, the only reason I discounted it was that then I would expect the effect to happen more often. I could be entirely wrong there however. edit - ars, I'm out of replies, but thanks for that. I think you are probably right.
- ars 12y ago
  It probably needs a short pulse. A normal light or a heater is constant and doesn't trigger anything. (AC vs DC.)