In our experiments, the two main issues are excess sunlight on the PALS face (ie: drowning out the IR light, or adding extra glints) and too much glare on the sensor.

 

For the face, a decent hat can be pretty helpful as long as it is positioned relatively low…thus maximizing the light blocking. For the sensor the main thing is to make sure the light source is not shining directly into the sensor.

 

The EyeTech sensor claims to be better in sunlight than most, though we haven’t done extensive testing yet. The newer Tobii sensors (ie: PCEye Mini) have had some issues with light sensitivity, but we have worked with Tobii to track down and attempt to fix those issues.

 

 

So I know none of them are great.

 

But does anyone have an opinion or experience as to which is best?  Do shades help?

 

Edward Hitchcock
Occupational Therapist

355 E. Erie St, Chicago, IL 60611
312-238-1000 office
312-238-0000 fax
xxxxxx@sralab.org

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