Each of our Ultrahaptics kits come with the Leap Motion® camera module and an ultrasound array. The Leap Motion® camera module uses visible and infrared light to track hand position and as such, has a very high resolution, typically sub-millimetre. You can read more about how the Leap Motion® camera module works here.
The Ultrahaptics array uses ultrasound to create the control points felt by you in mid-air. The dimensions of the control points are determined by the wavelength of the ultrasound. Currently, our technology uses transducers with a frequency of 40kHz, i.e. a wavelength of approximately 8mm. So each control point will be approximately 8mm in diameter.
However, the Ultrahaptics array is capable of steering the position of these control points with a much higher resolution and at a very high update rate, allowing accurate placement of each on the fingers and hands and the creation of immersive and tangible haptic sensations.