Posted by: mtpsycho on: February 12, 2009
Well, using the NUI Group Forum as a source for my MT project, i found a ZERO Pressure touch solution, regarding my first Trial, i’ve mentioned that bare hands over acrylic aint of a good touch or use. so a ZERO Pressure solution would be very great to have.
The Idea, is to replace the IR LEDS with IR Lasers ranging in qty from 2 ~ 6 lasers with Line Generators of angles 90 degrees or 120 degrees. those lasers should be placed 1mm above the Acrylic Sheet surface and by then u’ll have something like water spreaded over the acrylic sheet while it’s all IR Laser beams or light sheet, that means that u dnt need to press too hard to get the frustration occuring inside the acrylic but u are currently having frustration on the top of the acrylic and the reflection of the light occuring instantly by the touch/cutting the laser light sheet above the acrylic, this is resulting in better blobs, points and less pressure that is tending to be zero pressure solution.
IR Lasers specs:
Optimal Specs:
1) 4 x 840nm (wavelength) 25mW (max power) Laser Beamers
2) 4 x 120/90 Degrees Line Generator Glass Lens
3) 5 Volts Adaptor (DC offcourse)
dissadvantage: Hillariously pricey for Egyptian currency because one Laser module would cost from 100 to 200 USD$ which is an average of 600 to 1200 EGPs per module
Specs am going to use in my Project:
1) 4 x 780nm 25mW laser beamers
2) 4x 120 Degrees Line Generator Glass Lenses
3) 5 Volts Adaptor
According to my UB Camera specs sheet, the 780nm (near IR) is visible to the camera but not quite as normal Colored light, however, today i’ll try the Camera with my IR LEDs that i currently have and see the results
. afterwards i’ll purchase the beamers.
Dissadvantage: the beamers cart only use PayPal account :S, but i’ll find a way through this.