Sparkle stimulates the fingertip with touchable electric arcs above a hover sensing input device. We use a high voltage resonant transformer and a self-resonating circuit for which we control the electric discharge to create in-air tactile and thermal sensations up to 6 mm in height, and combined this technology with infrared proximity sensing. Sparkle is the first step towards providing a new type of in-air feedback for hover input without requiring users to wear tactile stimulators.
Daniel Spelmezan, Deepak Ranjan Sahoo, Sriram Subramanian. Sparkle: Hover Feedback with Touchable Electric Arcs. In CHI ’17: Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, pages 3705-3717. ACM, New York, NY, USA. DOI: 10.1145/3025453.3025782 CHI 2017 Honorable Mention Award
Daniel Spelmezan, Deepak Ranjan Sahoo, Sriram Subramanian. Sparkle: Towards Haptic Hover-Feedback with Electric Arcs. In UIST ’16 Adjunct: Adjunct Proceedings of the 29th Annual ACM Symposium on User Interface Software & Technology, pages 55-57. ACM, New York, NY, USA. DOI: 10.1145/2984751.2985702