Rendering 3D Haptic Shapes in Mid-Air using Ultrasound

This paper possesses information about the Creation of Rendering 3D Haptic Shapes in MidAir Using Ultrasound. Today’s haptic Technology is all around us & changed rapidly over the last few years with touch feedback & used in entertainment, rehabilitation and even surgical training. The buzz of your smartphone as you tap the keys, or the rumble of your Wii controller as you smash a tennis ball are both haptic effects. Now, scientists have invented a new method of haptic feedback using ultrasound which creates 3D haptic shapes in midair that can be seen and felt. This method uses ultrasounds which is focused onto the hands above the device that can be felt. In this approach the nonlinear effects of the sound produce forces on the skin which are used to generate tactile sensation & ultrasound visually patterns demonstrated by directing the device at a thin layer of oil so the depression can be seen as floating 3D shapes. Keywords—3D Shapes, Haptic, Mid Air Shapes, Radiation forces, Touch interaction, Tactile displays, Touchable objects, Virtual Touchable 3D shapes objects.