Sensitivity spectrum view cone of the Proximity sensor on the VL6180X chip

[DomL4T]

The position return aperture of VL6180X is extremely sensible to light at 630 nm (red). I would know the sensistivity spectrum of the position return of the proximity sensor on the chip VL6180X in order to use a filter to cut not too much the red light and do not alter the distance measurement. At 630 nm very weak red light blinds the proximity sensor and we need to use the ALS to monitor the red light.

If we know the sensitivity spectrum, and since need to use proximity sensor with the red light on, we can choice a filter with a cut-off that do not blindes the proximity sensor and can detect the red light with the ALS

Regards

Domenico   

[John E KVAM · Accepted solution]

the VL6180 uses a 850nm lidar. Actually it's spec'ed to be 845 to 865nm. 

We added a filter over the top of the receiver that should narrow the light to attempt to eliminate as much ambient as we could. 

[DomL4T]

Thank you for the answer, but we use a VL6180X.

The filter is present on this chip also?

[Anne BIGOT]

Yes it is