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Volumetric haptic display

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A volumetric haptic display (VHD) is similar to a (visual) volumetric display, but informs touch instead of vision. A VHD projects a touch-based representation of a surface onto a 3D volumetric space. Users can feel the projected surface(s), usually with their hands. The display is otherwise not detectable, and offers no visual feedback. There are no known instances of a fully operational VHD at this time.

Technological implementation

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The University of Bristol has developed a method for haptic feedback that could be integrated into a volumetric display. The system uses focused ultrasound to create a haptic object in mid air.[1]

Feedback

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The following feedback can be provided to the user:

  • Surface contact
  • Surface texture
  • Vibration
  • Motion-based/topological changes of surface

See also

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References

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  1. ^ Long, Benjamin; Seah, Sue Ann; Carter, Tom; Subramanian, Sriram (2014). "Rendering volumetric haptic shapes in mid-air using ultrasound: Proceedings of ACM SIGGRAPH Asia 2014". ACM Transactions on Graphics. 33 (6). University of Bristol. doi:10.1145/2661229.2661257. hdl:1983/ab22e930-bd9d-4480-a85a-83a33bd9b096. S2CID 3467880. Retrieved 19 November 2020.