Abstract:
A lamp (1) has a preferably tubular container (10) consisting of at least partly transparent material and having a first opening (13) which is sealed by a metallic first seal (11) which preferably contains aluminum, wherein the surface of the first seal (11) facing the interior (17) of the container includes a convexly shaped portion (19).The first closure can be melted on the tube.
Abstract:
A surface light source apparatus with dual-side emitting light includes a transparent cathode structure, a transparent anode structure, a fluorescent layer and a low-pressure gas layer. The transparent cathode structure and the transparent anode structure are opposite to each other and respectively a surface structure. The fluorescent layer is located between the transparent cathode structure and the transparent anode structure. The low-pressure gas layer fills a space between the transparent cathode structure and the transparent anode structure and functions to induce the cathode for evenly emitting electrons. In addition, the electron mean free path of the low-pressure gas layer allows at least sufficient electrons to directly impact the fluorescent layer under an operation voltage.
Abstract:
The disclosed subject matter includes a fluorescent lamp and particularly a cold cathode fluorescent lamp that can be employed as a light source for a LCD backlight unit for a television, a computer, a display, and the like. The fluorescent lamp can include a couple of electrode units located opposite to each other at each end of a tube, a couple of welding beads sealing both the tube and the couple of electrode units, and a filler gas located in the tube. Each of the electrode units can include an emitter electrode that is configured with a crystalline silicon carbide material having an electrical conductivity and including a concave portion formed thereon. The electrode units can prevent blackening on an inner surface of the tube by avoiding the occurrence of spattering. Thus, the fluorescent lamp using the electrode units can enjoy a long life, high reliability, easy manufacture, and the like.
Abstract:
A conductive composition and applications thereof are provided. The conductive composition comprises metal powder and glass powder. The diameter of metal powder ranges from 1 μm to 3 μm. The diameter of glass powder ranges from 0.5 μm to 1 μm. Weight percentage of the metal powder is from 60% to 98%. The conductive composition could be applied to manufacture the electrodes of a flat lamp.
Abstract:
A cold cathode for a discharge lamp includes a metal plate that has bending portions; a diamond film that is formed on a face of the metal plate, except for the bending portions; and a metal member that is mounted on the metal plate.
Abstract:
A lamp includes a lamp body in which a discharge gas is injected, and first and second electrodes disposed at opposite ends of the lamp body. The first electrode includes a first member that receives a first end portion of the lamp body and a second member that is disposed between the first member and the lamp body. The second electrode includes a third member that receives a second end portion of the lamp body and a fourth member disposed between the third member and the lamp body. The second and fourth members each have metallic solder. A rough surface is formed on each of the first and second end portions of the lamp body. A backlight assembly employs the lamp, and a liquid crystal display device employs the backlight assembly.
Abstract:
A gas discharge lamp comprising an electrode including a carrier of an electrode metal, selected from the group formed by tungsten and tungsten-containing alloys, and a first coating of a first electron-emitting material, which material comprises an alkaline earth metal oxide, selected from the group formed by calcium oxide, strontium oxide and barium oxide, and a rare earth metal oxide, selected from the group formed by scandium oxide, yttrium oxide and europium oxide, in a quantity a that ranges from 0.1 to 10 wt. % by weight, is characterized by a longer service life, a higher resistance to poisoning and a robust manner of coping with a rapid succession of switching operations, as well as a short ignition stage.
Abstract:
The invention relates to an electrode for discharge lamps, comprising a pin which is at least partially surrounded by a solid body. Said solid body consists of a material with a high melting point. The cooling body is therefore easy to mount on the pin and can be solidly connected to the same so that they form a robust unit.
Abstract:
A gas discharge lamp has electrodes of Ba(Ti1−xZrx)O3 with donor/acceptor dopants. Specific donor/acceptor combinations, an optimized content of zirconium and an optimized atomic ratio between the cations leads to ferroelectric ceramic exhibiting high values of the remnant polarization Pr and the dielectric constant &ggr;r, as well as rectangular hysteresis loop and low coercive field strengths Ec. When an alternating voltage is applied to the ferroelectric electrodes, the non-linear properties of the electrodes bring about the ignition of the lamp as well as the continuous operation thereof.