Lg Innotek Co., Ltd.

Industry-University Cooperation Foundation Hankuk Aviation University

Korea Institute of Science and Technology

Woong Hwang

Jae Seong Kim

Bo Young Lee

Woo Young Lee

Hyunjoon Kim

Young Keun Kim

Suk Hee Han

Joon Yeon Chang

Won Seob Shin

Tae Young Kim

Hi Jung Kim

Moo Whan Shin

Suhyeon Cho

Wooyoung Chang

Han Joo Lee

Sangbum Lee

A camera module according to an embodiment includes a circuit board; a protrusion disposed on the circuit board; an adhesive member disposed on the circuit board and including an opening vertically overlapping the protrusion; and a sensor base disposed on the adhesive member and including a concave portion vertically overlapping the protrusion, wherein the protrusion is inserted into the concave portion of the sensor base, and wherein the adhesive member has a closed loop shape surrounding an edge region of an upper surface of the circuit board.

Camera module and optical device comprising same

The present invention relates to a camera module and an optical touch screen using the same, the camera module including an infrared emitting diode () for emitting infrared ray, a linear sensor () for detecting a touched area by detecting infrared ray reflected from a retro reflector, and an infrared pass filter () for passing the infrared ray emitted from the infrared emitting diode () and infrared ray incident on the linear sensor ().

Camera module and optical touch screen using the same

The present invention relates to a camera module and an optical touch screen using the same, the camera module including an infrared emitting diode for emitting infrared ray, a first infrared pass filter passing only the infrared ray reflected by a retro reflector, an object lens condensing the infrared ray that has passed the first infrared pass filter, a second infrared pass filter passing an infrared ray of a particular wave band among the infrared ray condensed by the object lens, and a linear sensor for detecting an area touched by incidence of infrared ray that has passed the second infrared pass filter.

The present invention relates to a regular pattern optical sheet, the sheet including a transparent flat plate-shaped body, and a plurality of lens-shaped patterns regularly formed at one surface of the body, each having a same size of more than 0.1 &#x3bc;m but smaller than 25 &#x3bc;m in diameter, an angle formed by at least one line of lines straightly connecting each center of the plurality of lens-shaped patterns, wherein a horizontal axis of an LCD pixel formed at an upper surface of the body is more than 5.5&#xb0; but smaller than 9.5&#xb0;, and a discrete distance between the plurality of lens-shaped patterns is more than 5% but smaller than 15% of a diameter of the lens-shaped pattern.

Regular pattern optical sheet

An apparatus for forming stress corrosion cracks comprises a heating unit which includes a conductive member and a heating coil disposed adjacent to the conductive member to generate steam pressure in the tube specimen, an end holding unit, and a control unit for controlling the heating unit and the end holding unit. The stress corrosion cracks occurring in the equipment of nuclear power plants or apparatus industries during operation can be directly formed in a tube specimen using steam pressure under conditions similar to those of the actual environment of nuclear power plants, thus increasing accuracy for analysis of properties of stress corrosion cracks which are in actuality generated, thereby improving reliability of nuclear power plants or apparatus industries and effectively assuring nondestructive testing capability, resulting in very useful industrial applicability.

Apparatus for forming stress corrosion cracks

An apparatus for forming longitudinal thermal fatigue cracks. A heating unit has an induction coil disposed adjacent to an outer circumference of one side of a tubular test piece, on an inner surface of which a notch is formed. A cooling unit has a cooling water pump and a cooling water hose which forcibly injects cooling water from a cooling water storage source into an inner circumference of the tubular test piece. A control unit controls operation of the heating and cooling units. A cooling block partially encloses the outer circumference of the tubular test piece so as to control a magnitude of y-axial stress, is supplied with a cooling source of fluid or gas from an outside so as to repetitively cool the tubular test piece heated by the heating unit to adjust a temperature gradient, and has a longitudinal slit for controlling crack positions.

Apparatus for forming longitudinal thermal-fatigue cracks

Disclosed are a spin injection device applicable as a memory and a logical device using a spin valve effect obtained by injecting a carrier spin-polarized from a ferromagnet into a semiconductor at an ordinary temperature, and a spin-polarized field effect transistor.

Growing community of inventors

Seoul, South Korea

Woong Hwang