Abstract: The present invention relates to a method of evaluating a magneto-rheological rotating load device. In a method of evaluating a structural defect of a magneto-rheological rotating load device according to the present invention, the magneto-rheological rotating load device includes a housing, a shaft rotatably installed in the housing, one or more rotary rings connected to the shaft and configured to rotate in conjunction with a rotation of the shaft, a coil part disposed in the housing, and a magneto-rheological fluid with which at least a part in the housing is filled, and the method includes measuring whether a torque value, which is applied when the shaft and the rotary ring rotate, decreases from an initial set value within a predetermined range.

Abstract: Provided are a magneto-rheological rotating load device and a method of controlling the same. A magneto-rheological rotating load device according to the present invention includes a housing, a yoke part disposed in the housing, a shaft rotatably installed in the housing, one or more rotary rings connected to the shaft and configured to rotate in conjunction with a rotation of the shaft, a coil part disposed in the housing, a magneto-rheological fluid with which at least a part in the housing is filled, a cover part disposed at an upper end of the yoke part, and a bearing part disposed to be in contact with an outer peripheral surface of the shaft and configured to support the rotation of the shaft, in which a leak prevention means configured to prevent a leak of the magneto-rheological fluid is at least provided between the bearing part and the cover part.

Abstract: Provided are a magnetorheological fluid rotational load device and a method of controlling the same. The magnetorheological fluid rotational load device includes a housing, a yoke fixed in the housing, a shaft rotatably mounted at the center in the housing, one or more rotation rings connected to the shaft to rotate in association with rotation of the shaft, a coil disposed in the housing, a magnetorheological fluid filling the housing.

Abstract: A haptic device includes: a housing; a magnetic field generation unit disposed in the housing; an elastic support unit connected to the housing; a vibration unit which is connected to the elastic support unit, and which includes an elastic material in which magnetic particles are dispersed in a matrix; and a control unit for transmitting a signal to the magnetic field generation unit.

Abstract: Disclosed herein is a camera module. The camera module includes a bobbin unit, a suspension unit and a drive unit. The bobbin unit includes a stationary part which is fixed in a base, and a movable part which is provided so as to be movable relative to the stationary part, with a lens installed in the movable part. The opposite ends of the suspension unit are respectively connected to the stationary part and the movable part. The suspension unit includes a link unit which rotates when the movable part moves relative to the stationary part. The drive unit moves the movable part relative to the stationary part.

Abstract: Disclosed herein is a camera module. The camera module includes a bobbin unit, a suspension unit and a drive unit. The bobbin unit includes a stationary part which is fixed in a base, and a movable part which is provided so as to be movable relative to the stationary part, with a lens installed in the movable part. The opposite ends of the suspension unit are respectively connected to the stationary part and the movable part. The suspension unit includes a link unit which rotates when the movable part moves relative to the stationary part. The drive unit moves the movable part relative to the stationary part.

Abstract: An image photographing device including a lens holder including a lens group and a coil unit that generates an electromagnetic force, a housing into which the lens holder is movably inserted, including a magnet that faces the coil unit, an image sensor, and a diaphragm formed of nonmetal and attached to the housing and elastically supporting the lens holder. Accordingly, the diaphragm has a predetermined elasticity although not reducing the thickness, the lens holder can properly follow the signal of the coil unit, the image photographing device is highly producible, and the possibility that the diaphragm is plastically deformed is small. Also, the terminal of the coil unit is connected to a separate terminal unit installed outside the diaphragm, such that the material used to form the diaphragm can be selected regardless of the conductivity, and foreign materials, such as, flux, can be prevented from contaminating the inside of the device and degrading the quality of an image.

Abstract: An image photographing device including a lens holder including a lens group and a coil unit that generates an electromagnetic force, a housing into which the lens holder is movably inserted, including a magnet that faces the coil unit, an image sensor, and a diaphragm formed of nonmetal and attached to the housing and elastically supporting the lens holder. Accordingly, the diaphragm has a predetermined elasticity although not reducing the thickness, the lens holder can properly follow the signal of the coil unit, the image photographing device is highly producible, and the possibility that the diaphragm is plastically deformed is small. Also, the terminal of the coil unit is connected to a separate terminal unit installed outside the diaphragm, such that the material used to form the diaphragm can be selected regardless of the conductivity, and foreign materials, such as, flux, can be prevented from contaminating the inside of the device and degrading the quality of an image.