Comment on Easily available 940 nm transparent films?
lemmyman@lemmy.world 1 day ago
I’ve used and tested the same sensor with a wjndow made of 4905 transparent vhb laminated onto clear pet film.
Are you trying specifically to filter out non-IR frequencies?
colourlesspony@pawb.social 1 day ago
No, I’m just trying to keep it clean and easy to clean.
lemmyman@lemmy.world 1 day ago
Then most transparent plastic will work.
To be sure, find out exactly which material is used in whatever you’re considering buying (PC, PET, acrylic, glass, etc) and look up it’s transmission spectrum. Make sure it is high at 940nm.