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Haptic device with controlled traction forces

  • US 8,791,902 B2
  • Filed: 06/27/2013
  • Issued: 07/29/2014
  • Est. Priority Date: 03/21/2007
  • Status: Expired due to Fees
First Claim
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1. A haptic device comprising a substrate having a surface, one or more actuators that subject the substrate to lateral oscillation, and one or more other actuators that subject the substrate to friction reducing ultrasonic oscillation in a direction normal to the substrate surface, wherein synchronization of the lateral motion and the friction reducing ultrasonic oscillation generates a net shear force on a user'"'"'s finger or an object in contact with the substrate surface.

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