Haptic Interface with Variable Stiffness and Deformable Geometry

Researchers in Prof. Allison Okamura's laboratory have patented a small, simple tactile display that can automatically control both its surface geometry and its mechanical properties. Most tactile displays cannot evoke multiple tactile sensations because of the electromechanical complexities. This novel, light-weight interface relies on air pressure and particle jamming to selectively deform, stiffen or soften an array of flat cells. This technology (called “Haptic Jamming”) was designed for medical simulations and as a haptic interface for virtual environments or mobile devices.

Stage of Development- Prototype
The inventors have built prototypes and demonstrated the feasibility of deforming into a variety of surface geometries over a range of stiffnesses under automatic control.