IR emmiters are Vishay VSMG3700-GS08
Peak Emission Wavelength:850nm; Power Dissipation, Pd:170mW; Forward Current:100mA; Forward Voltage:1.8V; Viewing Angle:60 ; Package/Case:2-PLCC; Operating Temperature Range:-40 C to +85 C; Output Power, Pout:170mW
you can find them on Newark
I had a problem with IR arrays, they were getting very hot (look in this thread: http://nuigroup.com/forums/viewthread/6508/ ), but eventually, selecting a correct impedance of the resistors, solved more or less. it is not becoming very hot now.
My idea with IR light was to have even distribution of emmiters under the table, that’s why I decided to make long arrays, and the emmiters itself are quite powerful and wide angle.
I have changed the face of my 7D006 yesterday, now more diffused side is downside and more smooth side (for better touch feeling) upside. This makes blob detection more problematic, I have to lift arrays up and add more, I may even use my 48 led arrays, that I bought on eBay, for more IR light. before corners vere OK, when diffused side was upside, as you touch it directly, you have a best reflection, but that surface is like more skratchy and noisy
Next step is to mount heatsinks to the arrays. I have access to old computer warehouse on my old job, where I can get lots of P2 Pro heatsinks, they are long rectangulars, about 5cmx15cm; Also to fix camera and a projector, which is placed a bit higher, than it needed to be (I have some dark borders on the screen, the projector throw distance is not enough to beam all the screen). When I mount everithing I can you this box also as a wall, just puting it on a side.
Only one thing I would dream, is if multiple camera support will be made for CCV. i am not strong at programming, epscially, system programming, or I would make it by myself. Still trying to start experimenting with making some simple apps, to grow up, have some good ideas…