Volumetric haptic display

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

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 objet in mid air.^[1]

Feedback

The following feedback can be provided to the user:

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

Previous Work

Refreshable Braille Display (two dimensional).
Optacon (two dimensional)
Wired glove (partial 3D representation).

References

^ "Rendering volumetric haptic shapes in mid-air using ultrasound". http://research-information.bristol.ac.uk/. Retrieved 16 June 2015. {{cite web}}: External link in |publisher= (help)

Belexes research project in the Centre for Music Technology at the University of Glasgow.
[1] "Researchers in Japan have developed a display that makes 3D objects solid enough to grasp."

[1] "Rendering volumetric haptic shapes in mid-air using ultrasound". http://research-information.bristol.ac.uk/. Retrieved 16 June 2015. {{cite web}}: External link in |publisher= (help)

[1]