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Elevating Haptics: An Accessible and Contactless Elevator Concept with Tactile Mid-Air Controls

Mid-air interfaces enable rich 3D interactions and are inherently hygienic, but the technology is not yet ready for real-world public interfaces such as elevators, ATMs, and kiosks – one barrier to their adoption is the limited work on the accessibility of mid-air systems. To this end, we designed an interactive simulation of a contactless elevator simulation with mid-air touch feedback and comprehensive accessibility considerations. Despite being fully contactless, the controls are tactile and closely resemble the mental model of ordinary elevator buttons. Moreover, our demo features 1) mid-air haptics for conveying Braille information, 2) responsive button magnification to assist people with low vision, 3) intuitive gestures for opening or closing doors, and 4) audio feedback. Because many of the ideas and interactions in this demo can apply to other mid-air public interfaces, we hope to inspire more work on improving the accessibility of mid-air interfaces.