Tag: ftir

MBP Keyboard Assembly: Backlight illumination with FTIR

Today I have made an interesting discovery: my 2008 2.4 GHz MacBook Pro is using frustrated total internal reflection (FTIR) for the illumination of its keyboard. The background to this discovery is that I spilled a bit of salad dressing

Posted in apple, Mac, Multi-Touch Tagged with: apple, ftir, LED, Mac, MacBook Pro, Multi-Touch

My 2nd (so far unfinished) multi-touch table

(Update: The follow-up article can be found here.) Fortunately I’ve got some money from the Computer Science faculty of the Wiesbaden University of Applied Sciences to build another (better) multi-touch table. I decided to try Tim Roth’s DSI technology. By

Posted in Multi-Touch Tagged with: DSI, FH_Wiesbaden, ftir, Multi-Touch