I'm doing some research and i'm wondering how some of the touch screens that are out there, specifically on Vartouch's optical imaging touch screen works. The descriptions i've read just isnt enough for me to get how it physically gets the positional data needed. the link to their website is http://www.vartechsystems.com/products/voi.asp

 

The "scanning optical cameras" sense a finger as a point at a X-Y coordinate. That X-Y position maps onto the display in the same way as the mouse pointer.

 

Yes, i know that much but i am wondering more about the physical arrangements and the type of components they use.

 

Yes, i know that much but i am wondering more about the physical arrangements and the type of components they use.

Take a look at the material on touchscreens at the Wikipedia website.

hgmjr

 

Here is the material on touchscreens at howstuffsworks.com for you to add to reading list.

hgmjr

 

I hate touch screens.

At a former workplace, we received an Agilent network analyzer with a touch screen, and I couldn't get my supervisor to keep his cotton pickin' fingers off the doggone thing, and it would have fingerprints all over it. Just what I needed, another distraction.