Just improved upon my existing LCD FTIR setup. Fixed LEDs/resistors, replaced the camera from XBOX Live to PS3Eye with AlexP’s drivers. Demo here is from the same exact setup with the new improvements.
Also worth mentioning is that these results are through a NonCompliant surface – just bare Acrylic in a normal well lit room. Performance and response with PS3Eye camera and TBETA For PS3Eye is way better. Video might look a little choppy but in real life the results are super smooth. I’ll see if I can capture it without the chops again. In the meanwhile check it out.
- LCD Screen: 17”
- 8 LEDs on each side(8×4 = 32 LEDs total) – evenly spaced
- LED Wavelength: 880nm (SFH485: 5mm)
- 1 Ohm 1/4 W resistor per 8LEDs
- 12 VDC 1A Power to light up this array.
- Acrylic: 5mm thick (Got it from Home Depot. Its thinner than what others have been using here)
- PS3Eye Camera. Removed the IR Blocking Filter. Added an exposed photo negative 1 strip only as a filter.
Also had to grind the PS3Eye lens holder base a little for focus purposes. Once you remove the IR Blocking Filter from the lens, you’ll notice that the camera loses focus. You can either add a new similar thickness filter lens to get the focus back or if you want to go the cheap route like in my case, for that you’ll end up grinding the lens base a little (2mm roughly I guess) for focus.
Tags: FTIR, LCD, Multitouch, NUI, TBeta
