[visionlist] Professional Touchscreen

[Paweł Nawrot]

Hi everyone,

I am looking for professional high-resolution resitive min. 20" 
touchscreen for some eye-hand coordination tests.
It would be great with accuracy +/-1mm in its any surface point.

I have chosen resitive technology because I suppose that only this kind 
of touchscreen can give me sure information, that patient certainly 
press the point on the screen. Any other technologies (capacitive, 
surface accoustic wave) do not need firmly touch to get a data, so even 
smooth touch instead of a firm touch is recorded. I need only one touch 
(one record) after target appear. Capacitive and SAW technology can 
bring me several records after one target, because of several light dabs 
by the same or another finger. Maybe I am wrong, so please help me to 
choose the best technology and try to recommend the best model for my 
purpose.

Thank you in advance!

-- 
Paweł Nawrot MSc, PhD Student

pawel.nawrot at amu.edu.pl

Laboratory of Vision Science and Optometry
Ul. Umultowska 85
61-614 Poznań, Poland

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