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A comment on Colour-changing magnifying glass gives clear view of infrared light.

Re:Colour-changing magnifying glass gives clear view of infr... by philprx on Wednesday December 08, 2021 @02:34AM (#29482143)
Years ago I stumbled upon something related: it was a piece of transparent polymer or polycarbonate that would glow when exposed to infrared light.

I tried to find it again repeatedly, but never managed to find it. Anyone knows this?

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Re:Colour-changing magnifying glass gives clear view of infr... by filmor on Wednesday December 08, 2021 @04:35AM (#29482736)
Do you mean something like this http://www.bromba.com/indicard/indicare.htm? I remember that we used this in experiments with IR lasers to ensure that the beam was where we expected it to be.
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