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UltraHaptics: Multi-Point Mid-Air Haptic Feedback for Touch Surfaces

Published on Sep 26, 2013

Published and presented at UIST ’13
Authors: Tom Carter, Sue Ann Seah, Benjamin Long, Bruce Drinkwater, Sriram Subramanian

UltraHaptics, a system designed to provide multi-point haptic feedback above an interactive surface. UltraHaptics employs focused ultrasound to project discrete points of haptic feedback through the display and directly on to users’ unadorned hands. We investigate the desirable properties of an acoustically transparent display and demonstrate that the system is capable of creating multiple localised points of feedback in mid-air. Through psychophysical experiments they show that feedback points with different tactile properties can be identified at smaller separations. They also show that users are able to distinguish between different vibration frequencies of non-contact points with training. Finally, they explore a number of exciting new interaction possibilities that UltraHaptics provides.

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