
142 Virtual Reality: Concepts and Technologies
the palm of the hand and the fingers. The contact surface between the hand and
the object is significant but the movement of the fingers is limited;
• Precision grips: These grips are used for considerations of sensitivity and dexterity.
The object is grasped with fingers. The contact surface is less significant but there
is an increased freedom of movement.
There are a large number of precision and power grips. These different types of
grips are adapted to the various types of objects that a person can grasp. The robot
grippers used most commonly on the force feedback interfaces are either a handle or ...