VL53L0X enclosure/cover?

[cyclops]

Hi,

I've been developing a simple water level sensor with the VL53L0X and i'm having trouble putting it into the enclosure that is protected from the moisture. I've been mainly experimenting now, but one of my problems is mounting the sensor behind glass or something like that. I'm happy to glue that on over a hole or something, but wanted to figure out what works.

I've followed some of the video's around crosstalk and have made a 3d print that should help (please see photos).

The sensor works as expected in the 3d printed element, but doesn't work properly when i add the glass lens filter. I took the lens filter after trying a few other things, but not being great at materials, i wanted to be sure, so i tested with this filter from one of my camera lenses.
I think i'm doing everything correctly, albeit not professionally, but can't get it to work.

I would be greatful if somebody could point out some issues that i might have made.

    

[liaifat85]

If the sensor performs well without any protective layer, it confirms that the issue is likely due to interference from the glass.

[cyclops]

Thanks.

I understand the conclusion that you make, and also agree with it. However, i find it hard to understand why a UV filter used for a photo camera lens wouldn't be sufficient. That's why i'm wondering what i'm doing wrong. Should i just try other glass/acrylic? I've tried a few things here at home, but i'm quite sceptical that other things will work.