Abstract: A scanning device includes a mirror unit formed on a substrate so as to be pivotable centering around one axis for adjusting the direction of reflected light; a support frame formed at one surface of the mirror unit for preventing dynamic deflection of the mirror unit and supporting the mirror unit; and a driving unit provided on the substrate and driving the mirror unit. Thus, a dynamic deflection phenomenon does not occur when the mirror unit is pivoted centering around the pivoting axis. Accordingly, stable operation is possible and the angle of rotation of the mirror unit can be accurately adjusted, so that the scanning device can be effectively used in a high-speed precision scanning system.

Abstract: In an optical pickup head of an optical recording reproducing apparatus, a fabrication method thereof, a lubricant-coated optical pickup head of an optical recording reproducing apparatus and a method for coating lubricant onto an optical pickup head, by using a MEMS (micro electro mechanical system) technique used for designing, fabricating and application of a microstructure, it is possible to miniaturize an optical pickup head of an optical recording reproducing apparatus and reduce a fabrication cost thereof.

Abstract: The present invention relates to a small form factor camera module, more particularly, to a small form factor camera module having a mechanical iris and a shutter not only to improve an image quality by adjusting an amount of a light entering an image sensor but also to remarkably reduce a volume of the entire system by using an electromagnetic force and therefore to be applied to various applications which require for a small form factor camera module including a handheld terminal and so on, contrary to the existing electronic shutter.

Abstract: Disclosed is a device for reducing deterioration of image quality which can get rid of speckle by equalizing a laser from a light source on a screen by vibrating a reflective mirror installed between the light source and the screen at a predetermined amplitude. The device for reducing deterioration of image quality in a display system using a laser as a light source includes: a reflective mirror formed at the path of light positioned between the light source and a screen, for reflecting the laser; and a driving unit connected to the reflective mirror and vibrating the reflective mirror at a predetermined amplitude by using an electromagnetic force.

Abstract: A micro actuator for controlling a focal depth includes: a lens for forming a focal point by focusing light coming from a light source; a lens mounting unit having a lens mounted therein and allowing the lens to move in one axial direction; and an electromagnetic force generator consisting of a constant magnetic field generating member having a magnetic field in a predetermined direction and a variable magnetic field generating member for changing direction and strength of a magnetic field according to direction and amount of a current, installed at and around the lens mounting unit and causing the lens to move in a direction of an electromagnetic force generated by interaction of the two magnetic field generating members. The micro actuator for controlling a focal depth can be fabricated in a ultra-compact size, available for a mass production, and has a fast response speed.

Abstract: Disclosed herein is a low-power proximity AC current sensor. A low-power proximity AC current sensor according to the present invention includes a magnetic material having a location that changes depending on the intensity of a magnetic field formed outside the magnetic material; a piezoelectric film disposed at a location adjacent to the magnetic material and configured to generate electric charge due to a change in location of the magnetic material; and a substrate for securing the piezoelectric film. Another low-power proximity AC current sensor according to the present invention includes a magnetic material having a location that changes depending on the intensity of a magnetic field formed outside the magnetic material; corresponding electrodes disposed at a location adjacent to the magnetic material and configured to vary capacitance depending on a change in location of the magnetic material; and a substrate for securing the piezoelectric film.

Abstract: Disclosed herein is a lens driving device which is able to increase displacement without restriction, does not require a complex structure despite having a low power consumption, solves problems of friction and noise occurring in a gear mechanism, and realizes miniaturization and lightness. The lens driving device of the present invention includes a substrate which generates surface acoustic waves on a surface thereof, and a movable unit which is coupled to an optical lens and executes translation above the substrate using the surface acoustic waves. Therefore, the lens driving device of the present invention can implement translation of a lens without a separate mechanism, unlike conventional driving devices using motors and screws. Furthermore, the present invention satisfies the recent trend towards miniaturization and lightness, thus being usable in a variety of industrial fields that use optical lenses.

Abstract: An electromagnetic control valve having a permanent magnet and a needle are fitted in a cylindrical valve body, and a coil, and first and second yokes are mounted on an outside circumferential surface of the valve body. There are first and second ports in the valve body for making an outside space and an inside space of the valve body in communication. There is an orifice in the valve body for making the first and the second ports in communication. The needle is disposed at a position opposite to a side of the orifice, for moving in an up/down direction when a current is applied to the coil. Direction and amount of movement of the needle are dependent on a direction and an intensity of the current applied to the coil. When the needle moves, a tip of the needle varies an opened area of the orifice linearly, according to which a flow rate of the fluid passed through the orifice is controlled according to a position of the needle.

Abstract: A scanning device includes a mirror unit formed on a substrate so as to be pivotable centering around one axis for adjusting the direction of reflected light; a support frame formed at one surface of the mirror unit for preventing dynamic deflection of the mirror unit and supporting the mirror unit; and a driving unit provided on the substrate and driving the mirror unit. Thus, a dynamic deflection phenomenon does not occur when the mirror unit is pivoted centering around the pivoting axis. Accordingly, stable operation is possible and the angle of rotation of the mirror unit can be accurately adjusted, so that the scanning device can be effectively used in a high-speed precision scanning system.

Abstract: Disclosed is a device for reducing deterioration of image quality which can get rid of speckle by equalizing a laser from a light source on a screen by vibrating a reflective mirror installed between the light source and the screen at a predetermined amplitude. The device for reducing deterioration of image quality in a display system using a laser as a light source includes: a reflective mirror formed at the path of light positioned between the light source and a screen, for reflecting the laser; and a driving unit connected to the reflective mirror and vibrating the reflective mirror at a predetermined amplitude by using an electromagnetic force.

Abstract: A gyroscope which comprises: a driving fixed electrode (26) being fixed; a driving displacement electrode (24) being opposite to the driving fixed electrode, and being able to be displaced in a first direction; an inertial mass (23) being connected to the driving displacement electrode (24), being displaced in the first direction according to the first directional displacement of the driving displacement electrode (24), and being displaced in a second direction when an angular rate is applied; a sensing displacement electrode (22) being connected to the inertial mass (23), and being able to be displaced in the second direction according to the second directional displacement of the inertial mass (23); and a sensing fixed electrode (25) being opposite to the sensing displacement electrode and being fixed.

Abstract: A micro actuator for controlling a focal depth includes: a lens for forming a focal pint by focusing light coming from a light source; a lens mounting unit having a lens mounted therein and allowing the lens to move in one axial direction; and an electromagnetic force generator consisting of a constant magnetic field generating member having a magnetic field in a predetermined direction and an variable magnetic field generating member for changing direction and strength of a magnetic field according to direction and amount of a current, installed at and around the lens mounting unit and causing the lens to move in a direction of an electromagnetic force generated by interaction of the two magnetic field generating members. The micro actuator for controlling a focal depth can be fabricated in a ultra-compact size, available for a mass production, and has a fast response speed.

Abstract: In an optical pickup head of an optical recording reproducing apparatus, a fabrication method thereof, a lubricant-coated optical pickup head of an optical recording reproducing apparatus and a method for coating lubricant onto an optical pickup head, by using a MEMS (micro electro mechanical system) technique used for designing, fabricating and application of a microstructure, it is possible to miniaturize an optical pickup head of an optical recording reproducing apparatus and reduce a fabrication cost thereof.

Abstract: A gyroscope which comprises: a driving fixed electrode (26) being fixed; a driving displacement electrode (24) being opposite to the driving fixed electrode, and being able to be displaced in a first direction; an inertial mass (23) being connected to the driving displacement electrode (24), being displaced in the first direction according to the first directional displacement of the driving displacement electrode (24), and being displaced in a second direction when an angular rate is applied; a sensing displacement electrode (22) being connected to the inertial mass (23), and being able to be displaced in the second direction according to the second directional displacement of the inertial mass (23); and a sensing fixed electrode (25) being opposite to the sensing displacement electrode and being fixed.