Abstract:
A light pipe and an illuminating device having the light pipe may be provided. The light pipe may include an optical film having a glass transition temperature of approximately 110° C. to approximately 180° C.
Abstract:
The present disclosure relates to a microvalve using surface tension, a microfluidic chip including same and a method for manufacturing same. More particularly, the present disclosure relates to a microvalve using surface tension, a microfluidic chip including same and a method for manufacturing same, wherein the microvalve can be manufactured through a simple process and the microvalve and a coaxial sample channel are not separated, and thus the microvalve may be easily installed not only in an existing quadrangular channel but also in the coaxial channel so as to control the flow and amount of a microfluid (sample).
Abstract:
A lighting module includes a case having a main base, a first and a second extension parts extending from both sides of the main base in perpendicular direction to the surface of the main base, and a first and a second auxiliary bases extending from the first and the second extension parts respectively toward the center of the main base, a substrate seated in a cavity formed by structurally connecting the main base, the first and the second extension parts and the first and the second auxiliary bases, a plurality of light emitting devices disposed on one side of the substrate in the longitudinal direction of the substrate, and a driving driver disposed on the other side of the substrate. At least one of the first and the second extension parts has an opening such that the driving driver is inserted into the first and the second extension parts.
Abstract:
Provided are partially and fully earth-anchored cable-stayed bridges, each of which uses a prestressing unit including anchor units and a prestressing member from deck segments installed at its main span such that the prestressing unit serves as a conventional windproof cable and can simultaneously introduce a tensile stress. Thereby, a magnitude of the maximum compressive stress acting on a cross section of each main-span deck segment is reduced, so that it is possible to reduce a cross-sectional area of each main-span deck segment and thus to ensure economical construction. All or part of the compressive stress generated at the main span can be offset by the tensile stress caused by the prestressing member.
Abstract:
A resin application apparatus includes: an optical property measurement unit measuring an optical property of light emitted from a light emitting diode (LED) chip which is mounted on a package body and to which transparent resin is not applied; and a resin application unit applying light conversion material-containing transparent resin to the LED chip in accordance with a resin application amount which is decided depending on the optical property measured by the optical measurement unit.
Abstract:
A backlight unit and a display apparatus are provided. The display apparatus includes a power supply unit which outputs a first voltage; a light emitting unit which includes a first end connected to the power supply unit, and a second end, the first end receiving the first voltage from the power supply unit; and a compensation unit which includes a first end connected to the second end of the light emitting unit, and which compensates a deviation between the first voltage and a rated voltage of the light emitting unit.
Abstract:
An adhesive film for a reflection sheet and a reflection sheet using the adhesive film is provided. The adhesive film comprises a plastic base film having a heat shrinkage of −0.1 to 0.5% at 150° C. in machine and transverse directions; an adhesive layer formed on one side of the base film by applying an adhesive composition; and an anchor coating layer formed on the other side of the base film, opposite to the side on which the adhesive layer is formed. The adhesive film for a reflection sheet is manufactured by applying an adhesive composition on a plastic base film where heat shrinkage is controlled. Thus, the adhesive film has superior dimensional stability at a high temperature and excellent workability in a post process for laminating a reflection layer. Partial detachment does not occur when an adhesive layer is detached from an adherent, and stable physical properties can be achieved.
Abstract:
A test interface device includes a serializer, an optical transmitter, an optical receiver, and a deserializer. The serializer receives parallel test signals from automatic test equipment, and serializes the parallel test signals into a serial test signal. The optical transmitter converts the serial test signal into an optical test signal. The optical receiver receives the optical test signal from the optical transmitter, and converts the optical test signal into the serial test signal. The deserializer deserializes the serial test signal into the parallel test signals, and transmits the parallel test signals to a device under test. As a result, signal transfer speed may be improved and optical resource usage may be reduced.
Abstract:
Provided is a light emitting device and a method of controlling the same are disclosed. The light emitting unit includes a power supply unit for supplying a drive voltage to the light emitting unit, and a control unit for comparing a first current level previously applied to the light emitting unit with a second current level to be applied to the light emitting unit in accordance with image information to be displayed using the light emitting unit, and controlling a voltage level applied to the light emitting unit based on a result of comparison.
Abstract:
A lighting device may be provided that includes a light emitter including a plurality of LEDs; a reflective plate disposed on the light emitter; a diffuser plate disposed in a direction in which light emitted from the LED is irradiated; a case including the light emitter disposed therein and including a bottom plate and a side wall extending from both side ends of the bottom plate; and a connecting member extending from the side wall of the case and including a bracket coupler on at least one side thereof. The light emitter is disposed between the bottom plate of the case and the diffuser plate.