... (OTP) is a high-precision touch products, OTP use high-speed camera module fit with 850 infrared light guide strips with the ... of three high-speed cameras, four groups (n = two) 850 infrared lights, four light guide bar, data cable and related structural ... the touch area, self-assembly, commissioning ;5, support WIN7 / 8, Android2.3.6/4.0 7. Seven, structure size OTP Optical touch screen ...