Abstract: An apparatus for adjusting a position of an optical element is disclosed. The apparatus includes: a support; a movement unit for supporting an optical element and being movable relative to the support; a magnet unit; a coil unit for generating a magnetic force for moving the movement unit when an electrical signal is applied; a sensor unit disposed in a position corresponding to the magnet unit for detecting a relative position of the movement unit with respect to the support; a locking unit for limiting or allowing movement of the movement unit; and a controlling unit connected to the coil unit for controlling the coil unit and determining whether the movement unit is in a state where movement of the movement unit is limited by the locking unit based on a signal output from the sensor unit.

Abstract: The present invention relates to a plate-type heat exchange reactor and a method of manufacturing thereof, and there is provided a method of manufacturing a plate-type heat exchange reactor and a plate-type heat exchange reactor manufactured in the manufacturing method, the method including the steps of preparing side surface plates respectively provided with a plurality of slits formed in parallel along a longitudinal direction; arranging two side surface plates in a vertical direction to face each other with a space therebetween; forming a plurality of fluid passage channels by inserting a plurality of fluid passage partition walls into the slits provided on the two side surface plates in parallel in a horizontal direction; and bonding the side surface plates and the fluid passage partition walls.

Abstract: A light amount adjusting apparatus includes: a two-dimensional (2D) aperture assembly that adjusts an opening area of a via hole through which light is transmitted; a three-dimensional (3D) aperture plate that forms a first opening and a second opening by blocking a part of the via hole, or moving to outside of the via hole to open the via hole; a first shielding plate that is movable to open or close the first opening; and a second shielding plate that is movable so as to close the second opening when the first shielding plate opens the first opening and to open the second opening when the first shielding plate closes the first opening.

Abstract: A camera module includes a lens barrel including at least one lens group; a moving frame that includes the lens barrel and moves in an optical axis direction and in a first direction and a second direction that are perpendicular to the optical axis direction; a fixed frame that movably supports the moving frame and provides the moving frame with a driving force in the optical axis direction, a driving force in the first direction, and a driving force in the second direction; and a base that fixes the fixed frame and includes an image sensor that is spaced apart from the at least one lens group in the optical axis direction.

Abstract: Position sensor assemblies having compact structures and capable of precisely sensing a position change, and optical devices including the same are disclosed. A position sensor assembly is provided that includes: a sensing unit that outputs a signal varying as a magnetic force varies; and a magnet spaced apart from the sensing unit and i movably disposed with respect to the sensing unit, and comprising protrusion units of opposite polarities that protrude from each end portion of the magnet in one surface of the magnet toward the sensing unit.

Abstract: Provided is a camera module including: a lens barrel including at least one lens group; a moving frame that includes the lens barrel, is movable in a first direction and in a second direction that is perpendicular to the first direction, and includes first and second magnets that are disposed on two sides in the first direction; a fixed frame that movably supports the moving frame and includes first and second magnetic sensors that are spaced apart from each other in the first direction to respectively correspond to the first and second magnets; and a position information generating unit that generates position information of the first and second magnets in the second direction based on a first detection signal detected by the first magnetic sensor and a second detection signal detected by the second magnetic sensor.

Abstract: A device for transporting an optical element so that inclination of the optical element is substantially prevented to more precisely control the position of the optical element, including: a base; a transporting member that supports the optical element and is movably disposed along a predetermined direction with respect to the base; a magnet extending from the base along a movement direction of the transporting member; a coil that is coupled to the transporting member and generates a magnetic field when an electrical signal is applied thereto; and a magnetic substrate that is disposed on the transporting member and applies a force to the transporting member toward the magnet due an action of a magnetic force between the magnet and the magnetic substrate.

Abstract: An apparatus for adjusting a position of an optical element is disclosed. The apparatus includes: a support; a movement unit for supporting an optical element and being movable relative to the support; a magnet unit; a coil unit for generating a magnetic force for moving the movement unit when an electrical signal is applied; a sensor unit disposed in a position corresponding to the magnet unit for detecting a relative position of the movement unit with respect to the support; a locking unit for limiting or allowing movement of the movement unit; and a controlling unit connected to the coil unit for controlling the coil unit and determining whether the movement unit is in a state where movement of the movement unit is limited by the locking unit based on a signal output from the sensor unit.

Abstract: The present disclosure relates to an optical adjusting apparatus having an optical adjusting lens for image stabilization and auto focusing, which includes a lens holder that supports the optical adjusting lens; at least one image stabilization VCM actuator unit that moves the lens holder perpendicular to an optical axis of the optical adjusting lens, the image stabilization VCM actuator unit including a magnet with a neutral zone parallel to the optical axis; and an auto focusing VCM actuator unit that moves the lens holder in an optical axis direction, the auto focusing VCM actuator unit including a magnet with a neutral zone orthogonal to the optical axis.

Abstract: An apparatus for adjusting a position of an optical element is disclosed. The apparatus includes: a support; a movement unit for supporting an optical element and being movable relative to the support; a magnet unit; a coil unit for generating a magnetic force for moving the movement unit when an electrical signal is applied; a sensor unit disposed in a position corresponding to the magnet unit for detecting a relative position of the movement unit with respect to the support; a locking unit for limiting or allowing movement of the movement unit; and a controlling unit connected to the coil unit for controlling the coil unit and determining whether the movement unit is in a state where movement of the movement unit is limited by the locking unit based on a signal output from the sensor unit.

Abstract: A lens barrel and a photographing apparatus comprising the lens barrel include: a lens module that comprises at least one lens and moves along an optical axis of the at least one lens; a shake correction module arranged near the lens module; at least one fixing member that is disposed between the lens module and the shake correction module and fixes the shake correction module in response to being pressed by the lens module; a frame on which the at least one fixing member is installed; and at least one elastic member that elastically mounts the at least one fixing member on the frame.

Abstract: Provided are a metal structure catalyst and a method of preparing the same. Particularly, the method includes forming a metal precipitate on a metal support by contact of a mixed solution including a precursor of a metal catalyst and a precipitating agent with the metal support, and forming metal particles by thermally treating and reducing the metal precipitate formed on the metal support. The metal structure catalyst includes a metal support, a metal oxide layer formed on the metal support, and metal nanoparticles formed on the metal oxide layer. In addition, the metal nanoparticles are uniform and have enhanced binding strength.

Abstract: A device for transporting an optical element so that inclination of the optical element is substantially prevented to more precisely control the position of the optical element, including: a base; a transporting member that supports the optical element and is movably disposed along a predetermined direction with respect to the base; a magnet extending from the base along a movement direction of the transporting member; a coil that is coupled to the transporting member and generates a magnetic field when an electrical signal is applied thereto; and a magnetic substrate that is disposed on the transporting member and applies a force to the transporting member toward the magnet due an action of a magnetic force between the magnet and the magnetic substrate.

Abstract: An optical device includes an optical element through which light is transmitted, a frame that supports the optical element, magnets in the frame around the optical element, a base unit that movably supports the frame, a cover unit to cover the magnets, and magnetic force generating units in the cover unit in positions corresponding to the magnets and that generate magnetic force when an electrical signal is applied.

Abstract: Position sensor assemblies having compact structures and capable of precisely sensing a position change, and optical devices including the same are disclosed. A position sensor assembly is provided that includes: a sensing unit that outputs a signal varying as a magnetic force varies; and a magnet spaced apart from the sensing unit and i movably disposed with respect to the sensing unit, and comprising protrusion units of opposite polarities that protrude from each end portion of the magnet in one surface of the magnet toward the sensing unit.

Abstract: A light amount adjusting apparatus includes: a two-dimensional (2D) aperture assembly that adjusts an opening area of a via hole through which light is transmitted; a three-dimensional (3D) aperture plate that forms a first opening and a second opening by blocking a part of the via hole, or moving to outside of the via hole to open the via hole; a first shielding plate that is movable to open or close the first opening; and a second shielding plate that is movable so as to close the second opening when the first shielding plate opens the first opening and to open the second opening when the first shielding plate closes the first opening.

Abstract: An apparatus for adjusting a position of an optical element is disclosed. The apparatus includes: a support; a movement unit for supporting an optical element and being movable relative to the support; a magnet unit; a coil unit for generating a magnetic force for moving the movement unit when an electrical signal is applied; a sensor unit disposed in a position corresponding to the magnet unit for detecting a relative position of the movement unit with respect to the support; a locking unit for limiting or allowing movement of the movement unit; and a controlling unit connected to the coil unit for controlling the coil unit and determining whether the movement unit is in a state where movement of the movement unit is limited by the locking unit based on a signal output from the sensor unit.

Abstract: A light quantity adjustment apparatus includes a support plate with a first through hole, a rotation plate with a second through hole corresponding to the first through hole and rotatable with respect to the support plate, 2D iris plates rotatably connected to the support plate so as to move between a location in which the first through hole is completely opened and another location in which the first through hole is completely closed, two 3D iris plates each having one end rotatably connected to the support plate and another end engaged with the rotation plate, a shading plate, and a shading plate driving unit. The 2D iris plates adjust an open area of the first through hole. The two 3D iris plates move between a retreat location away from the first through hole and a photographing location where a first photographing hole and a second photographing hole are formed.

Abstract: An optical device includes an optical element through which light is transmitted, a frame that supports the optical element, magnets in the frame around the optical element, a base unit that movably supports the frame, a cover unit to cover the magnets, and magnetic force generating units in the cover unit in positions corresponding to the magnets and that generate magnetic force when an electrical signal is applied.

Abstract: A light quantity adjustment apparatus includes a support plate with a first through hole, a rotation plate with a second through hole corresponding to the first through hole and rotatable with respect to the support plate, 2D iris plates rotatably connected to the support plate so as to move between a location in which the first through hole is completely opened and another location in which the first through hole is completely closed, two 3D iris plates each having one end rotatably connected to the support plate and another end engaged with the rotation plate, a shading plate, and a shading plate driving unit. The 2D iris plates adjust an open area of the first through hole. The two 3D iris plates move between a retreat location away from the first through hole and a photographing location where a first photographing hole and a second photographing hole are formed.