cancel
Showing results for 
Search instead for 
Did you mean: 

VL53L5CX How can we place a VL53L5CX behind a glass- or plastic window? When we try this the sensor can only detect the window, and not what is outside the window.

RSive.1
Associate
 
1 REPLY 1
John E KVAM
ST Employee

Great question --

Start with the article:

https://community.st.com/s/article/Time-of-Flight-Cover-glass

(it's also in the article tab at the top of the ToF questions)

Your problem is called crosstalk - photons that hit the coverglass and reflect back.

you have 3 basic solutions:

1) clearer, thiner, optical quaility glass.

2) Separate glasses with an opaque barrier between them (Hormix.com.tw makes them)

3) crosstalk calibratrion.

Or I suppose you can use any combination of the above.

But start with the article and go from there.

  • john

If this or any post solves your issue, please mark them as 'Accept as Solution' It really helps. And if you notice anything wrong do not hesitate to 'Report Inappropriate Content'. Someone will review it.