Looks like we'll be making a touch screen using the FTIR (Frustrated Total Internal Reflection) technique.
Materials required:
A wooden box (not completely necessary for FTIR but will look good)
Acrylic pane
Diffuser (decent tracing paper) painted with silicon sealant (to go over acrylic pane)
A projector
A PS3 camera (with IR blocking filter removed)
IR LED ribbon (not widely available in UK but easier than soldering 100 LEDs together)
Heat absorbing glass (to go between projector and acrylic)
2 fans (to keep everything cool)
A computer
Resources and sites to buy from:
http://www.peauproductions.com/
http://www.environmentallights.com/products/12610/InfraRed_Ribbon_Deluxe_Kit_European
Useful Vids and tutorials:
http://www.maximumpc.com/article/features/maximum_pc_builds_a_multitouch_surface_computer?page=0%2C0
The below vids show you how to remove the IR filter from a PS3 camera (essential for touch screen). This is the preferred camera to use as it has a frame rate of 100 frames per second when used with the touch screen software. Frame rate is more important than image quality as the camera is used to detect movement.
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