Lg Electronics Inc.

Intellimicrons Co., Ltd.

Seong-Hyok Kim

Young-Joo Yee

Chang-Hyeon Ji

Yong-Kweon Kim

Chang-hoon Oh

Youngjoo Yee

Jung-Hoon Choi

Jeong-Hoon Choi

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.

Scanning device and fabrication method thereof

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.

Optical pickup head of optical recording reproducing apparatus, fabrication method thereof, lubricant-coated optical pickup head of optical recording reproducing apparatus and lubricant coating method thereof

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.

Device for reducing deterioration of image quality in display using laser

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.

Micro actuator for controlling focal depth

A gyroscope which comprises: a driving fixed electrode () being fixed; a driving displacement electrode () being opposite to the driving fixed electrode, and being able to be displaced in a first direction; an inertial mass () being connected to the driving displacement electrode (), being displaced in the first direction according to the first directional displacement of the driving displacement electrode (), and being displaced in a second direction when an angular rate is applied; a sensing displacement electrode () being connected to the inertial mass (), and being able to be displaced in the second direction according to the second directional displacement of the inertial mass (); and a sensing fixed electrode () being opposite to the sensing displacement electrode and being fixed. The driving displacement electrode () is supported by a folded spring () movable in the first direction, and the sensing displacement electrode is supported by a folded spring () movable in the second direction.

Growing community of inventors

Seoul, South Korea

Seong-Hyok Kim