TacTiles: Electromagnetic Actuators for Rendering Haptics in VR

Video for TacTiles: Dual-mode Low-power Electromagnetic Actuators for Haptics in VR. Accepted at IEEE VR 2019.
We introduce TacTiles, light (1.8g), low-power (130mW), and small form-factor (1cm^3) electromagnetic actuators that can form a flexible haptic array to provide localized tactile feedback. Our novel hardware design uses a custom 8-layer PCB, dampening materials, and asymmetric latching, enabling two distinct modes of actuation: contact and pulse. We leverage these modes in Virtual Reality (VR) to render continuous contact with objects and the exploration of object surfaces and volumes with spatial haptic patterns. Results from a series of experiments show that users are able to localize feedback, discriminate between modes with high accuracy, and differentiate objects from haptic surfaces and volumes even without looking at them.
Authors: Velko Vechev, Juan Zarate, David Lindlbauer, Ronan J Hinchet, Herbert Shea, Otmar Hilliges
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