Surface display: a force feedback system simulating the surface of an object

Force feedback is an interface based on the phenomenon of contact. In the implementation of a virtual force feedback environment, the object is defined in a computer and the user is in the real world. Therefore, an interface device is required to transmit touch sensation to the user´s finger when he or she touches a virtual object in virtual space. In this paper, methodology to realize force feedback is categorized from this view point, and the idea of “surface display” is presented as a force feedback method in a virtual environment