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This paper proposes a biomimetic gel-type single lens system with a new attachment and driving mechanism. As the miniaturization of conventional lens systems is limited due to the use of a set of glass lenses for adjusting the focal length, a gel-type single lens system is presented based on the focus adjustment mechanism of the human eye. The proposed system consists of a gel-type lens, mechanical...
This article focuses on the design and implementation of smart wearable robot glasses for human visual augmentation, which take a role to provide the refined visual recognition result to users of wearing the proposed system. The proposed system consists of a glass-type wearable device with a front looking camera, an eye looking camera, and an earphone, and signal processing units. The scene-analyzing...
This paper presents a biomimetic robot-eye system with a single vari-focal lens and winding-type SMA actuator. Based on the biomechanics of the human eye, the proposed system consists of a biconvex PDMS lens, winding-type SMA actuator, and mechanical parts, such as grippers, load arms, an outer ring, and body. In contrast to other single vari-focal lenses, the proposed PDMS lens is a gel, thereby...
This paper presents a small-sized dynamic walking quadruped robot that uses SMA actuators. Conventional dynamic walking robots have a bulky body and are usually driven by large and heavy electrical motors or hydraulic actuators in order to produce a high output torque. Thus, to resolve this problem, a new SMA actuator is proposed with attractive features, such as a high power density, small size,...
This paper presents a new variable focal liquid lens system that uses a SMA (shape memory alloy) actuator. Making a conventional variable focal liquid lens system small and light is difficult, due to the requirement of a large and heavy actuator, such as a pump or an electric motor, to distribute the liquid in the liquid lens. Plus, focal control is also difficult, due to a nonlinear focal variation...
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