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 into my keyboard (pro tip: do never try to show someone the salad you are […]

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 using this technology it should be possible to use objects on the table that can […]