So my current project uses VL53L4CD time of flight sensor and I want a lens to keep the shmoo off of it. I tried this IR transparent film but it still blocks the sensor.
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.
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?
No, I’m just trying to keep it clean and easy to clean.
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.