Lg Innotek Co., Ltd.

Other

Yonghun Lee

Jinwook Kim

Jae-Chul Hwang

Jongwon Kim

Chongwoo Park

Han-Sang Cho

Gyu-Young Lee

Seon-joong Liu

Changbum Park

Kiha Lee

Wok-Kwan Bae

Cornel Iurascu

The present invention relates to an optical touch screen, the screen including a flat plate display panel, a square ring-shaped case mounted and assembled with the flat plate display panel, brackets assembled on corners of the case, a camera module mounted on the brackets.

Optical touch screen

The present invention relates to a camera module and an optical touch screen using the same, the camera module including a holder formed with a stair unit and opening, an infrared light emitting diode mounted at the stair unit for emitting an infrared, and an image sensor detecting the infrared through the opening.

Camera module and optical touch screen using the same

A six-degree-of-freedom parallel mechanism is provided for expanding a grade of a spindle. The parallel mechanism has a spindle that turns round a workpiece at a tilting angle of 90.degree. in a workspace, to thereby allow a machining for both vertical and horizontal planes of the workpiece, and a vertical turning process, by a single machining center. A six-axis multi-machining type machining center embodying the parallel mechanism of the present invention is also disclosed. An over-actuated multi-machining type machining center further including over-actuated actuators is presented to solve a problem of driving joints' singularity caused by the parallel mechanism.

Parallel mechanism for multi-machining type machining center

Growing community of inventors

Seoul, South Korea

Yonghun Lee