SlashGear Japan
Multitouch, it’s all you bloody hear about these days. If another person stops me in the street or blocks my car in just to shout “Apple have invented a multitouch cellphone!” into my face, I’ll scream. Okay, so a huge company spent over two years developing a compact screen that could respond to more than one finger jabbing at it. So what? What’s far more impressive to my mind is this four-day project to make a multitouch table:
It all relies on the wonderfully-named Frustrated Total Internal Reflection (FTIR), whereby the path of LED light internally reflected between a sheet of acrylic and a diffuser is changed by the touch of a finger or other object placed against the top acrylic. That’s then picked up by a computer, and a projector mounted underneath the table displays the appropriate response.
I’m really tempted to make one of these myself, it looks like great fun. I could also use it to club to death anyone who mentioned a certain Apple cellphone’s innovative interface…
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