D405 depth artifact when using another light source
Hello,
I am using an Intel D405 for computing depth. I also have to use in my setup a red laser range sensor. However when I turn on my laser sensor the depth map is badly affected (as illustrated in the photography : the scenarios are EXACTLY the same but the laser was turned off and turned on between the two captures). I was wondering why ? And if there was a way to avoid this ? 
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Hi Cuau Lenaic The RealSense D405 camera model cannot see the near-infrared light spectrum because the sensors are equipped with an IR Cut filter and so it can only see the visible light spectrum. If the type of laser rangefinder that you are using is based on visible light projection and it is being projected along the same path as the D405 then the light could be blinding the D405's depth sensors, making the depth analysis less reliable.
Would it be an option for you to use the laser rangefinder at the same distance from the observed surface but point it towards the surface from a different angle to the D405's field of view, please?
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Do you mean I should place the laser in order to have the red dot out of the camera's field of view ? Unfortunately for my application it seems not possible because I want to measure the distance with laser and surface normal with the camera at the same point (which is the point where there is a red dot) ...
You mentionned an IR Cut filter. If I use a laser distance sensor which uses IR light instead of visible red light would it be ok then ?
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