Abstract: An ultraviolet (UV) lamp device for a vehicle includes a housing, a cover that covers a surface of the housing, a lamp disposed in the housing and configured to emit UV light, and a pair of electrodes configured to support the lamp, spaced apart from each other, and configured to apply a voltage to the lamp. The electrodes define a groove that seats the lamp and supports portions of a bottom surface and a side surface of the lamp.

Abstract: Disclosed are therapeutic hydrogels for atopic dermatitis and a method for preparing the same. The hydrogels comprises a biocompatible polymer, a polyalcohol, and a medicinal plant extract. The hydrogels can carry medicinally effective ingredients for a sustained period of time and absorb wound exudates properly. The hydrogels have suitable gel strength and, when applied to a wound, can prevent bacterial infection of the wound. Moreover, the methods employing radiation allow the polymer chains to be crosslinked to each other, and also bring about a sterilization effect in the final hydrogel. There are no problems of toxic residues in the hydrogels. They are easy to attach to the skin and concomitantly provide a cool feeling. Supported by the laminate of hydrophilic non-woven fabric sheet and polyethylene film, the hydrogel retain water for a prolonged period of time and thus are useful in the treatment of contact dermatitis and atopic dermatitis.

Abstract: Disclosed are therapeutic hydrogels for atopic dermatitis and a method for preparing the same. The hydrogels comprises a biocompatible polymer, a polyalcohol, and a medicinal plant extract. The hydrogels can carry medicinally effective ingredients for a sustained period of time and absorb wound exudates properly. The hydrogels have suitable gel strength and, when applied to a wound, can prevent bacterial infection of the wound. Moreover, the methods employing radiation allow the polymer chains to be crosslinked to each other, and also bring about a sterilization effect in the final hydrogel. There are no problems of toxic residues in the hydrogels. They are easy to attach to the skin and concomitantly provide a cool feeling. Supported by the laminate of hydrophilic non-woven fabric sheet and polyethylene film, the hydrogel retain water for a prolonged period of time and thus are useful in the treatment of contact dermatitis and atopic dermatitis.

Abstract: An electron gun for a color cathode ray tube includes a cathode which is a source for emitting an electron beam, a control electrode, through which the electron beam emitted from the cathode passes, having first electron beam passing holes each including a first vertically elongated indented portion formed at an output side surface of the control electrode and a first electron beam passing hole portion formed in the first indented portion, a screen electrode installed adjacent to the control electrode and having second electron beam passing holes formed in the screen electrode, a plurality of focusing electrodes for forming a plurality of quadrupole lenses, sequentially installed from the screen electrode and respectively having electron beam passing holes having a predetermined shape.

Abstract: An electron gun for a cathode ray tube includes at least one auxiliary quadruple lens forming unit adapted to control an electron beam diverging in the vertical direction and focused in the horizontal direction by a plurality of focus electrodes, at least one first quadruple lens forming unit adapted to control the electron beam passing through the auxiliary quadruple lens focused in the vertical direction and diverging in the horizontal direction, and at least one second quadruple forming unit adapted to control the electron beam passing through the first quadruple lens diverging in the vertical direction and focused in the horizontal direction, installed between the screen electrode of a triode portion and a final acceleration electrode of the cathode ray tube and sequentially arranged in a direction from a screen electrode to a screen of the cathode ray tube.

Abstract: An electrode assembly includes at least first and second electrodes for forming one or more dynamic quadrupole lenses to emit electron beams and an electron gun using the same. A first parabolic waveform signal having voltages decreasing from the center to the periphery of a screen on which the electron beams land is applied to the first electrode, and a second parabolic waveform signal having voltages increasing from the center to the periphery of the screen is applied to the second electrode, in synchronization with horizontal and vertical deflection signals for horizontally and vertically deflecting electron beams emitted from the electrode assembly.

Abstract: An electron gun for a color cathode ray tube (CRT) includes at least one auxiliary quadruple lens forming unit for making an electron beam diverging in the vertical direction and focused in the horizontal direction by a plurality of focus electrodes, at least one first quadruple lens forming unit for making the electron beam passing through the auxiliary quadruple lens focused in the vertical direction and diverging in the horizontal direction, and at least one second quadruple forming unit for making the electron beam passing through the first quadruple lens diverging in the vertical direction and focused in the horizontal direction, installed between the screen electrode of a triode portion and a final acceleration electrode, which are sequentially arranged in a direction from a screen electrode to a fluorescent film of a cathode ray tube. Thus, a horizontal resolution at the periphery of a screen is improved.

Abstract: An electron gun for a color cathode ray tube includes a cathode which is a source for emitting an electron beam, a control electrode, through which the electron beam emitted from the cathode passes, having first electron beam passing holes each including a first vertically elongated indented portion formed at an output side surface of the control electrode and a first electron beam passing hole portion formed in the first indented portion, a screen electrode installed adjacent to the control electrode and having second electron beam passing holes formed in the screen electrode, a plurality of focusing electrodes for forming a plurality of quadrupole lenses, sequentially installed from the screen electrode and respectively having electron beam passing holes having a predetermined shape.

Abstract: An electrode assembly includes at least first and second electrodes for forming one or more dynamic quadrupole lenses to emit electron beams and an electron gun using the same. A first parabolic waveform signal having voltages decreasing from the center to the periphery of a screen on which the electron beams land is applied to the first electrode, and a second parabolic waveform signal having voltages increasing from the center to the periphery of the screen is applied to the second electrode, in synchronization with horizontal and vertical deflection signals for horizontally and vertically deflecting electron beams emitted from the electrode assembly.

Abstract: An electron gun for a cathode ray tube. The electron gun has a plurality of cathodes, a plurality of grids arranged at one side of the cathode and having electron beam-passing holes through which electrons emitted from the cathode pass, and a shield cup connected with a final grid and having electron beam-passing holes. The cathode including a cylindrical sleeve, a base metal supported by the sleeve and having a concave surface applied with electron emitting materials with a uniform radius of a curvature from a central point in the electron beam-passing hole of a first grid which is in the closest vicinity of the cathode, wherein the central point is located flush with a surface of the first grid toward the cathode, and a heater installed in the inside of the sleeve for heating the base metal.