Abstract: A tactile sensor includes a first layer formed of flexible material having an outer contact surface and an opposed inner interface surface, a second layer formed of substantially transparent flexible material arranged in substantially continuous contact with the flexible first layer at the interface surface, a camera, and reflective material. The first and second layers are configured so that pressure exerted by an object or objects contacting the outer contact surface causes at least localized distortion of the interface surface. The camera is arranged to capture an image of the interface surface through the flexible second layer. The reflective material is configured so that the appearance of at least part of the reflective material changes as the viewing angle changes and the reflective material is located between the layers at the interface surface.

Abstract: A clutch mechanism for a mechanical effector device includes a reel configured for winding and unwinding a tendon around the reel, and a base configured to connect to and rotate with a motor for rotation of the base around an axis. The reel and base are further configured for alignment with and rotation around a common axis of rotation. Inner ends of the reel and base mutually castellated and interlocking and the castellations are configured to ride up and over one another to allow independent rotation of the reel and base if an unresolvable rotation force is encountered.

Abstract: A tactile sensor includes a first layer formed of flexible material having an outer contact surface and an opposed inner interface surface, a second layer formed of substantially transparent flexible material arranged in substantially continuous contact with the flexible first layer at the interface surface, a camera, and reflective material. The first and second layers are configured so that pressure exerted by an object or objects contacting the outer contact surface causes at least localized distortion of the interface surface. The camera is arranged to capture an image of the interface surface through the flexible second layer. The reflective material is configured so that the appearance of at least part of the reflective material changes as the viewing angle changes and the reflective material is located between the layers at the interface surface.

Abstract: Aspects of the subject technology relate to a robotic finger digit including a distal finger joint coupled between a distal finger part and a middle finger part, a middle finger joint coupled between the middle finger part and a proximal finger part and an extend tendon coupled at a first end to the distal finger joint, and coupled at a second end to an actuation device. In certain aspects, the robotic finger can further include a flex tendon coupled at a first end to the distal finger joint, and coupled at a second end to the actuation device, wherein the actuation device is configured to move the extend tendon and the flex tendon substantially the same distance in order to flex and/or extend the robotic finger digit.

Abstract: A robotic hand assembly comprising: a hand section comprising: at least one digit provided with at least one actuatable joint; and a control section comprising: at least one actuation device, the at least one actuation device comprising: a sensing module configured to sense a force applied to a tendon coupled at a first end to the at least one actuatable joint; and an actuation module configured to actuate the at least one actuatable joint.

Abstract: A robotic hand assembly comprising: a hand section comprising: at least one digit provided with at least one actuatable joint; and a control section comprising: at least one actuation device, the at least one actuation device comprising: a sensing module configured to sense a force applied to a tendon coupled at a first end to the at least one actuatable joint; and an actuation module configured to actuate the at least one actuatable joint.

Abstract: A humanoid forearm and hand configuration has a hand conformation such as to be capable of mimicking substantially all of the movements of the human hand, the several component parts of the hand and the wrist-simulating joint coupling the hand to the radius-seeking joint of the forearm being angularly movable with respect to one another each by separate tendon means connected to respective ones of a large number of tightly packed space-seeking jostling air muscles clustered around a radius-simulating shaft.

Abstract: In an air muscle powered actuator system, notably an anthropomorphic actuator system, a joint 13, incorporates a member 55 with a cylindrical surface; an air muscle 57 which is wrapped around the cylindrical surface such as to produce a flattened portion 61a intermediate two end portions 61b, 61c, to either of which air may be admitted and subsequently exhausted; means 53 clamping the flattened portion to the cylinder such as to prevent migration of air between the end portions; and, extending from the cylindrical member 55, a composite lever structure 67a, 67b. Angular displacement in one sense or the other of the cylinder 55 about an axis parallel to its direction of length, accordingly as air is admitted to one or the other end portion produces corresponding angular displacement in the lever structure 67a, 67b.