Abstract:
The invention provides methods of making arrays of thin sheet microdischarge devices. In a preferred method of fabricating an array of microdischarge devices, a multi-layer dielectric layer thin sheet is position with respect to a first thin electrode. A second electrode thin sheet is joined on the dielectric layer sheet. An array of microcavities is provided through at least a portion of the dielectric layer sheet. The method can produce thin large arrays inexpensively. In preferred embodiments, each of the multi-layer dielectric layer thin sheet, the first thin electrode and the second electrode thin sheet have a thickness of less than less than 100 μm. In preferred embodiments, the multi-layer dielectric is formed of polymer, and in other embodiments from oxides and/or nitrides. In a particular preferred embodiment, the multilayer dielectric is formed from oxide and nitride films.
Abstract:
A lamp electrode adapted to deliver mercury during an assembly process has a supporting electrical lead attached to the proximal end of a metallic shell. The proximal and a distal ends of the metallic shell each lie along a central axis. A container with a vitreous plug in a sealed end contains a substance for delivering mercury upon heating of the container. The sidewall of the container is attached to the electrical lead. The longitudinal axis of the container is skewed relative to the electrical lead to orient the container in a direction to reduce discharge of mercury directly toward the metallic shell. The container is heated to open it and discharge a mercury dose from the sealed end, which is prone to opening upon heating of the container.
Abstract:
An electrode for a cold cathode fluorescent lamp comprises an electron emission layer and an anti-collision layer. In this case, the anti-collision layer covers at least one portion of an outer surface of the electron emission layer and is made of an anti-collision material. The anti-collision material is ceramic, titanium, niobium, molybdenum, or alloy thereof.
Abstract:
A high-pressure discharge lamp has a discharge vessel (10) enclosing a discharge space (11) which contains an ionizable filling. The discharge vessel has a first (2) and a second (3) mutually opposed neck-shaped portion provided with a pair of electrodes (6, 7) arranged in the discharge space (13). Each electrode is tubular over its entire length. Preferably, the electrodes are free from coils in the discharge space. Preferably, the electrodes extend to outside the discharge vessel. The high-pressure discharge lamp according to the invention is relatively easy to manufacture.
Abstract:
Operation of an HID lamp may be improved by forming a glow generating recess on an exterior side the electrode. The lamp may be of standard construction with a light transmissive lamp envelope having a wall defining an enclosed volume. At least one electrode assembly is extended in a sealed fashion from the exterior of the lamp through the lamp envelope wall to be exposed at an inner end of the electrode assembly to the enclosed volume. A metal halide lamp fill is enclosed with an inert fill gas. The inner end of the electrode is formed with a recess having a least spanning dimension S and a recess depth of D where S is greater the electron ionization mean free path but less than twice the cathode fall plus negative glow distances, throughout the glow discharge phase of starting, for the chosen fill gas composition and pressure (cold).
Abstract:
In a flat-type light source and an LCD device incorporating the flat-type light source, the flat-type light source includes a lamp body, external electrodes and hollow electrodes. The lamp body has a plurality of discharge spaces. The external electrodes are disposed on an outer surface of the lamp body, and are partially overlapped with the discharge spaces. Each of the hollow electrodes is disposed on an inner surface of the lamp body, and is disposed in each of the discharge spaces. The hollow electrode may have a rectangular or other suitable tube shape. As a result of this construction, a discharge voltage to operate the flat-type light source may be decreased, and discharge efficiency may be increased.
Abstract:
A hollow cathode having at least a portion of the inner, outer or both surfaces coated with a layer of a getter material is described. Some methods for the production of the hollow cathode of the invention are also described, which include cathodic and electrophoretic deposition of the getter layer onto the hollow cathode.
Abstract:
A discharge device is described that contains an anode, a cathode, and an insulating layer disposed between the anode and the cathode. A cavity is extends entirely through at least one of the anode or cathode and penetrates the dielectric layer. At least one of the anode or cathode may include a screen or the dielectric layer may have a plurality of films with at least two different dielectric constants. The voltage differences between the anode and cathode in each of multiple devices electrically connected together may be limited.
Abstract:
A high pressure gas discharge device and methods of using the device as a UV gas discharge light source are disclosed. The device has a cathode covered partially with a dielectric layer which separates the cathode from an anode. A discharge device utilizes one or more microhollows in the uncovered part of the cathode. Methods of utilizing the discharge devise as a gas discharge light source for producing ultapure water.
Abstract:
A discharge device is described that contains an anode, a cathode, and an insulating layer disposed between the anode and the cathode. A cavity is extends entirely through at least one of the anode or cathode and penetrates the dielectric layer. At least one of the anode or cathode may include a screen or the dielectric layer may have a plurality of films with at least two different dielectric constants. The voltage differences between the anode and cathode in each of multiple devices electrically connected together may be limited.