University of Bristol researchers have developed a method for using ultrasound to generate a 3D haptic shape that can be added to 3D displays so that invisible images can be felt in mid-air. By focusing ultrasound from a phased array of transducers, complex patterns of air disturbances can be felt as floating 3D shapes. The researchers have also demonstrated visualization of the ultrasound patterns by directing the ultrasound at a thin layer of oil, allowing depressions or raised virtual objects to be seen of the surface. The research, led by Long and colleagues Professor Sriram Subramanian, Sue Ann Seah, and Tom Carter from the University of Bristol’s Department of Computer Science Bristol Interaction and Graphics (BIG) group, is published in the November issue of ACM Transactions on Graphics and will be presented at this week’s SIGGRAPH Asia 2014 conference, Dec. 3–6. Ultrahaptics, a spinoff company, has announced it has received a £600,000 seed round of investment to license the technology into “a diverse array of markets including consumer electronics, home appliance and automotive,” and will present the technology at CES in January.
Posted on: Wed, 17 Dec 2014 15:00:35 +0000
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