Abstract:
A sulfur plasma lamp has a lamp envelope of transparent or translucent glass or ceramic material. At least two silicon carbide electrodes are hermetically sealed with the lamp envelope and in contact with an interior of the lamp envelope. A quantity of sulfur within the interior of the lamp envelope is sufficient to create a sulfur plasma upon excitation. A buffer gas within the interior of the lamp envelope enables initial discharge and heating of the interior of the lamp envelope to excite the sulfur into a plasma state. More than two electrodes may be provided, and an electrical potential is created between different pairs of the electrodes at different times, thereby inducing stirring of the plasma upon excitation of the material into a plasma state.
Abstract:
Devices and methods related to flat discharge tubes. In some embodiments, a gas discharge tube (GDT) device can include a first insulator substrate having first and second sides and defining an opening. The GDT device can further include second and third insulator substrates mounted to the first and second sides of the first insulator substrate with first and second seals, respectively, such that inward facing surfaces of the second and third insulator substrates and the opening of the first insulator substrate define a chamber. The GDT device can further include first and second electrodes implemented on the respective inward facing surfaces of the second and third insulator substrates, and first and second terminals implemented on at least one external surface of the GDT device. The GDT device can further include electrical connections implemented between the first and second electrodes and the first and second terminals, respectively.
Abstract:
Disclosed is a lamp block comprising a lamp which is a glass tube having an internal final end and an external final end, wherein said internal final end ends with an electrode that fits directly into a connector placed on the machine into which said lamp is mounted and said external final end ends with an electrode to which a cable is connected, at least one portion of said cable being inserted in a key which is a hollow cylinder. Also disclosed is a laser apparatus suitable to house said lamp block and a method for extracting and housing said lamp block in said laser apparatus. In a preferred embodiment, said apparatus further comprise a system for electronic recognition.
Abstract:
A first excimer lamp includes: a quartz glass-made light-emitting tube containing an excimer emission gas sealed therein; and a pair of electrodes for generating dielectric barrier discharge. One of the pair of electrodes is disposed in the inner space of the light-emitting tube so as to extend in the direction of a tube axis of the light-emitting tube, and the other one of the pair of electrodes is embedded in the tube wall of the light-emitting tube so as to extend in the direction of the tube axis of the light-emitting tube. The one electrode is electrically connected to a conductive foil hermetically embedded in an end portion of the light-emitting tube.
Abstract:
The invention describes a discharge lamp (1) comprising a quartz glass envelope (10), a discharge chamber (11) and a pair of electrodes (2), wherein an outer end portion (2A) of an electrode (2) overlaps a conductive foil (3) embedded in a pinch (12) of the quartz glass envelope (10), and wherein the electrode (2) comprises an inner structured zone (ZB) in an inner portion (2B) of the electrode (2) between the conductive foil (3) and the discharge chamber (11), and an outer structured zone (ZA) over the outer end portion (2A) of the electrode (2), and wherein the outer structured zone (ZA) and the inner structured zone (ZB) are different from each other. The invention also describes a method of manufacturing an electrode (2) for use in a discharge lamp (1). The invention further describes an electrode (2) for use in a discharge lamp (1).
Abstract:
A discharge tube of the present invention includes a glass bulb in which noble gas is enclosed, a pair of electrodes protruding from both ends of the glass bulb in the longitudinal direction of the glass bulb, and a connector connected to each of the electrodes. Each of the electrodes includes at least an axis section and a large-diameter section with a step section and a circumferential face. The step section has a first latching section for latching onto the connector. The circumferential face has a contact section with which the connector comes in contact. The connector includes a connector body into which the electrode is inserted, a second latching section for latching onto the first latching section of the electrode, and a connecting section connected to the contact section of the electrode. This achieves a discharge tube with high connection reliability and high heat radiation efficiency, and a light-emitting apparatus provided with this discharge tube.
Abstract:
A light source, with electrodes of alternating polarity attached to a substrate in an excimer ultraviolet (UV) lamp, for generating a plasma discharge between each of the electrodes. The shape of the substrate can shape and control the plasma discharge to reduce exposure of materials susceptible to attack by the halogens. The electrodes can be located such that the plasma discharge occurs in a region where it produces less contact of the halogens with the vulnerable areas of the lamp enclosure. The materials, such as the electrodes, substrate, and envelope, can be selected to withstand corrosive materials. In another embodiment, a plurality of sealed tubes, at least some of which contain an excimer gas are positioned between two electrodes.
Abstract:
A liquid crystal display includes a liquid crystal display panel for modulating light to form an image, and a back light unit having a plurality of lamp tubes with outside electrodes and without inside electrodes. Each of the plurality of lamp tubes has a first outside electrode disposed at one end portion and a second outside electrode disposed at another end portion. The first outside electrode which is disposed at one of the plurality of lamp tubes is electrically connected with the first outside electrode disposed at an adjacent another of the plurality of lamp tubes by a conductive member, and the second outside electrode which is disposed at the one of said plurality of lamp tubes is electrically connected with the second outside electrode disposed at the adjacent another of the plurality of lamp tubes by a conductive member.
Abstract:
An external-electrode fluorescent lamp has two external electrodes disposed on its ends, wherein each external electrode has an extended portion flattened to form two substantially flat circumferential areas. With such flattened circumferential areas, the electric contact made to the conductive strip can be improved. For mounting a row of external-electrode fluorescent lamps, a mounting base with two electrically conductive strips are used. Each electrically conductive strip has a plurality of curved sections to fit the extended portion of the external electrode. The curved section has two substantially sidewalls to make contact with the flat circumferential areas of the extended portion of the external electrode. The extended portion can also be slightly tapered.
Abstract:
The present invention relates to a gas discharge tube or the like having a structure for enabling the maintenance of discharge startability and the prevention of the shortening of the life of an anode section and for increasing the amount of visible light from a visible light source passing through a discharge path restricting section. The gas discharge tube comprises a sealed vessel in which gas is encapsulated. A cathode section and anode section for generating discharge are arranged in the sealed vessel. Furthermore, a discharge path restricting section for narrowing a discharge path is arranged between the cathode section and the anode section. In particular, an opening portion is formed in the anode section, and the cross section of the opening portion has a non-circular shape where the maximum opening width in a first direction is different from that in a second direction orthogonal to the first direction. Thus, the amount of the visible light passing through the opening portion of the anode section in the gas discharge tube from the visible light source can be increased by making the maximum opening width in one direction of the first and second directions longer than that in the other direction. The maintenance of the discharge startability and the prevention of the shortening of the life of the anode section can be attained by making the maximum opening width in the other direction shorter than that in one direction.