Midair Ultrasound Haptic Display with Large Workspace

Midair haptic display using airborne ultrasound enables to give tactile feedback to a human body without wearing any devices. In the conventional ultrasound midair haptics system, the workspace was limited to the space of about 30 cm cube. In this paper, we integrate multiple ultrasound display units to achieve a large workspace. Our prototype system enables visuo-tactile interaction with AR images in a space of about 2 m cube.