Entries |
Document | Title | Date |
20080246401 | Electric lamp with a laser-structured metal fuse seal - An electric lamp with a fuse seal, which seals off the lamp bulb, a metal seal with power supply wires and feed lines being provided in the fuse seal, and the metal seal with power supply wires and feed lines being provided with a structure, which has been produced by a laser. | 10-09-2008 |
20080315770 | High-Pressure Discharge Lamp Having Cooling Laminates Fitted at the End of the Discharge Vessel - Laminates, which are used for cooling the discharge vessel, are fitted to the seals of the ceramic discharge vessel. They are an integral part of the seal. | 12-25-2008 |
20080315771 | Electrode and extra-high pressure discharge lamp using the same - An electrode for an extra-high pressure discharge lamp, comprises large diameter portion which is symmetrical with respect to an axis of the electrode, a small diameter portion connected to the large diameter portion, wherein the large diameter portion is connected to the small diameter portion through an outer surface portion of the electrode, wherein a stripe lines like pattern portion, extending along an electrode axis direction, is formed on a portion to be brought in contact with glass of a lamp, and wherein unevenness is formed over an entire circumference of the electrode in a cross sectional view of the electrode taken along a direction perpendicular to the electrode axis direction. | 12-25-2008 |
20090021172 | High-Pressure Discharge Lamp Having a Ceramic Discharge Vessel - High-pressure discharge lamp having a ceramic discharge vessel, in which two electrodes and a light-emitting filling are contained, wherein capillaries are positioned at the ends of the discharge vessel, in which capillaries leadthroughs are sealed off, which leadthroughs are each connected to an electrode ( | 01-22-2009 |
20090039784 | Metal Halide Lamp - The invention relates to a metal halide lamp comprising a ceramic discharge vessel ( | 02-12-2009 |
20090072742 | LIGHT EMITTING UNIT AND CONDUCTIVE DEVICE THEREOF - A light-emitting unit includes a light-emitting component, a conductive device and a power source. The light-emitting component includes at least one end. The conductive device includes a tubular body having an opening and detachably telescoped to the end of the light-emitting component, and at least one abutting portion protruding toward the light-emitting component for abutting against the light-emitting component. The conductive device is utilized to excite the light-emitting component to emit lights via the power source. | 03-19-2009 |
20090079346 | HIGH INTENSITY DISCHARGE LAMP HAVING COMPOSITE LEG - A system, in certain embodiments, includes a high intensity discharge lamp having a composite leg. The composite leg includes a plurality of leg sections coupled together in series. The plurality of leg sections includes different materials, coefficients of thermal expansion, Poisson's ratios, or elastic moduli, or a combination thereof. A method, in certain embodiments, includes enclosing a high intensity discharge within a ceramic arc envelope. The method also includes reducing thermal stresses associated with the high intensity discharge via a composite leg extending outwardly from the ceramic arc envelope. The composite leg includes a plurality of leg sections coupled together in series. The plurality of leg sections includes different materials, coefficients of thermal expansion, Poisson's ratios, or elastic moduli, or a combination thereof. | 03-26-2009 |
20090134796 | Metal Halide Lamp - The invention relates to a metal halide lamp comprising a ceramic discharge vessel ( | 05-28-2009 |
20090153052 | High-Pressure Discharge Lamp - The lamp uses a sealing system with a ceramic supporting element ( | 06-18-2009 |
20090167179 | MINIATURE CERAMIC METAL HALIDE LAMP HAVING A THIN LEG - A low watt ceramic metal halide lamp has a body with a discharge chamber disposed therein. First and second hollow legs extend from the discharge chamber and received first and second electrode assemblies, respectively, therethrough with first ends of the electrode assemblies disposed in spaced relation in the discharge chamber. Use of thin legs limits heat flux from the discharge chamber. Preferably, thin legs are defined by a load dissipation factor of the ceramic part being less than 0.065 mm | 07-02-2009 |
20090167180 | Electric Lamp - The invention relates to a novel lamp which comprises a pinched base ( | 07-02-2009 |
20090167181 | Discharge Lamp with a Holding Apparatus for the Electrodes - The invention relates to a discharge lamp, in particular a high-pressure discharge lamp, having a discharge vessel ( | 07-02-2009 |
20090179570 | ELECTRIC LAMP - The invention relates to an electric lamp with a high lumen output and a low sensitivity to explosion, comprising a quartz-glass envelope having at least one sealed end, a thin foil comprising molybdenum at least partly embedded within said sealed end, a first current conductor connected to said foil extending interiorly of said envelope, and a second current conductor connected to said foil and extending exteriorly of said envelope, wherein the re-crystallized foil exhibits a yield strength (offset=0.2%) according to ASTM F 8M-91 below 300 MPa. This can be obtained by molybdenum doped with between 0.01 and 5 wt % of rhenium or 0.01 and 2 wt % of tungsten. The invention further relates to a lamp with a molybdenum foil which is resistant to oxidation and corrosion comprising dopes of between 0.01 and 0.1 wt % of Ce and/or Ti, or dopes of between 0.01 and 1 wt % of Al, Co, Fe, Hf, Ir, and/or Y; or dopes of between 0.01 and 5 wt % of Cr. | 07-16-2009 |
20090212704 | CERAMIC DISCHARGE VESSEL WITH CHROMIUM-COATED NIOBIUM FEEDTHROUGH AND DISCHARGE LAMP CONTAINING SAME - There is described a lamp having a ceramic discharge vessel with a niobium feedthrough that has been coated with a layer of chromium to provide oxidation resistance. In a preferred method, a slurry containing chromium powder is applied to the niobium feedthrough and dried. A sub-assembly is formed by inserting the coated niobium feedthrough into an annular polycrystalline alumina (PCA) disc and heated in vacuum to 1700° C. to 1900° C. to bond the feedthrough to the PCA and form the sub-assembly and an oxidation-resistant coating on the feedthrough. The sub-assembly is then sealed to a ceramic body of the discharge vessel in a conventional manner. | 08-27-2009 |
20090230864 | COMPACT HID ARC LAMP HAVING SHROUDED ARC TUBE AND HELICAL LEAD WIRE - A compact open-rated HID lamp ( | 09-17-2009 |
20090243485 | HIGH-PRESSURE GAS DISCHARGE LAMP HAVING ELECTRODE RODS WITH CRACK-INITIATING MEANS - A high-pressure gas discharge lamp having a bulb ( | 10-01-2009 |
20090261728 | High-Pressure Discharge Lamp - A high-pressure discharge lamp having a discharge vessel with a central part that bulges out and which defines a lamp axis with a sealing part being attached to each end of the discharge vessel. The shaft of in each case one electrode, comprising a head and a shaft, is sealed in the sealing part, and a capillary tube closely surrounding the shaft of the electrode is between the central part of the discharge vessel and the sealing part. A tubular neck is integrally formed as a component of the discharge vessel between the central part and the capillary tube, and is separated from the shaft. | 10-22-2009 |
20090289551 | GAS-DISCHARGE LAMP - A gas-discharge lamp ( | 11-26-2009 |
20090295290 | METAL LEAD-THROUGH STRUCTURE AND LAMP WITH METAL LEAD-THROUGH - A metal lead-through structure being embedded in an embedding material and operating in a temperature range is suggested. The metal lead-through has a start point and an end point, and comprises elementary sections enclosing an angle between each other. The elementary sections have a length smaller than the length leading to a thermal expansion difference between the metal lead-through and the embedding material developing a break in the embedding material. The elementary sections are connected to and enclose an angle magnitude between each other so that a sum of the thermal expansions thereof taken in a direction determined by a straight line drawn between the start point and the end point of the metal lead-through is smaller than the expansion developing a break in the embedding material. A lamp comprising the metal lead-through structure is also suggested. | 12-03-2009 |
20090295291 | Apparatus and methods for use of refractory abhesives in protection of metallic foils and leads - A device having a quartz or glass body forming a chamber hermetically sealed by one or more pinch seals formed in the body wherein a metallic foil provides an electrical connection through a pinch seal. A method is provided for protecting a portion of the metallic foil from corrosion prior to forming the pinch seal by coating at least a portion of the foil with a film comprising silica, and applying a refractory abhesive to at least a portion of the film. | 12-03-2009 |
20100013389 | METAL HALIDE LAMP HAVING A DISCHARGE VESSEL SURROUNDED BY AN OUTER ENVELOPE - A metal halide lamp comprising a discharge vessel ( | 01-21-2010 |
20100026181 | CERAMIC DISCHARGE VESSEL AND METHOD OF MAKING SAME - A ceramic discharge vessel has a hollow body with at least one receptor. A molybdenum tube is shrink-fit in the receptor, preferably in the form of capillaries. The shrink fit provides a hermetic seal without the use of glass frits or other additional sealing materials. An electrode having a rod portion is inserted into the molybdenum tube. The rod portion of the electrode is welded to the tube at a remote end of the tube. The inner diameter of the molybdenum tube is no more than 0.02 mm greater than the outer diameter of the rod portion of the electrode so that a gap of 0.01 mm or less is formed between the rod portion and the tube to inhibit pooling of the discharge medium, e.g., a metal halide fill, in the gap. | 02-04-2010 |
20100033093 | LOWER TURN PER INCH (TPI) ELECTRODES IN CERAMIC METAL HALIDE (CMH) LAMPS - An electrode assembly for a discharge lamp, particularly a ceramic metal halide (CMH) lamp, having a ceramic body defining a discharge chamber and at least one leg having an opening therethrough. An electrode assembly is received at least in part in the body, preferably including a niobium mandrel, a molybdenum mandrel, and a molybdenum overwind received over the mandrel. A tungsten portion is then joined to the molybdenum composite. Adjacent turns of the overwind are spaced by a gap to facilitate receipt of an associated seal material on the overwind and the molybdenum mandrel. The gap is approximately 10% to 50% of the dimension between adjacent turns of the overwind relative to a diameter of the overwind. | 02-11-2010 |
20100033094 | FOIL FOR LAMPS AND ASSOCIATED POWER SUPPLY SYSTEM AND ELECTRIC LAMP WITH SUCH A RESPECTIVE FOIL AND ASSOCIATED PRODUCTION PROCESS - A foil for lamp construction is provided with a substantially rectangular design with a longitudinal axis and a transverse axis. The foil may include at least one zone in its interior which comprises a plurality of structures arranged next to one another. | 02-11-2010 |
20100060164 | METHOD FOR BONDING CERAMIC TO METAL AND CERAMIC ARC TUBE WITH CERAMIC TO METAL BOND - A lamp includes a discharge vessel comprising a body portion defining a discharge space and leg members extending therefrom. Electrode assemblies include conductors carried by bores of the respective leg members. At least one of the conductors is bonded directly to the respective leg member within the bore, without the need for a sealing material, to form an airtight seal. Electrodes are electrically connected to the conductors and extend into the discharge vessel. An ionizable fill is sealed within the vessel. | 03-11-2010 |
20100060165 | METAL HALIDE LAMP - The invention provides a metal halide lamp | 03-11-2010 |
20100066246 | MERCURY-FREE ARC TUBE FOR DISCHARGE LAMP DEVICE AND METHOD FOR MANUFACTURING THE SAME - In a mercury-free arc tube, regions including molybdenum foils | 03-18-2010 |
20100079070 | MERCURY-FREE DISCHARGE LAMP - A mercury-free discharge lamp includes a hollow cylindrical body, two capillaries entirely inside the body and hermetically sealed to the body, each with a respective electrode therein, where the capillaries are separated from each other inside the body by a gap that is a discharge chamber of the discharge lamp, and where each of the electrodes has an interior end exposed inside the discharge chamber and an exterior end extending beyond a respective end of the body. A pair of frit seals seal respective electrode exterior ends to respective ones of the capillaries. The discharge chamber preferably includes a mercury-free metal halide salt fill that is 10 to 54.5 wt % NaI, 6.6 to 15 wt % DyI | 04-01-2010 |
20100109528 | FOIL SEALED LAMP - A foil sealed lamp including an airtight container including a discharge portion provided thereinside with a discharge space and seal parts disposed at both ends of the discharge portion; metal foils of thickness T (μm) hermetically attached to the seal portions; a pair of electrodes each having its one end connected to the metal foil and having its other end led out to the discharge space; and on the periphery of areas of connection of the metal foils with the pair of electrodes, multiple recessed portions satisfying 1.0 (μm)≦D≦T (μm) wherein D refers to the depth (μm), in a manner that the recessed portions do not overlap one another. | 05-06-2010 |
20100134003 | HIGH PRESSURE DISCHARGE LAMP - A high pressure discharge lamp has an electric discharge container with sealing portions formed at both ends of a light emission section, and electrodes made of tungsten. The electrode has a base end which is buried in the sealing portion. Tips of the electrodes face each other in the light emission section. Purity of the tungsten is 99.99% or more. The electrode has a large diameter portion formed at the tip of the electrode and an axis portion whose diameter is smaller than that of the large diameter portion. A part of a surface of the large diameter portion has a concavo-convex structure where a portion having grooves in a circumference direction and a portion having no groove are asymmetrically formed with respect to an axis of the electrode. | 06-03-2010 |
20100141142 | DISCHARGE LAMP - To provide a discharge lamp capable of joining metal plates together with leads respectively using a filler material by matching the center of the metal plates to the axial center of the leads a discharge lamp having a metal plate ( | 06-10-2010 |
20100164379 | METAL HALIDE LAMP - The invention provides a metal halide lamp | 07-01-2010 |
20100171421 | HIGH-PRESSURE DISCHARGE LAMP - The high-pressure discharge lamp includes: an arc tube; sealing portions which respectively have preseal glasses embedded therein, and at least one of which has an inert gas enclosing space which is arranged so as to be in contact with an outer surface of a corresponding the one preseal glass; a pair of feeders including a pair of electrodes, external lead rods, and metal foils, respectively; an external conductor which is arranged on an outer surface of the one sealing portion so as to be corresponded to the inert gas enclosed space, and connected to the external lead rod from the other sealing portion; and an internal conductor which is arranged in the inert gas enclosing space in the one sealing portion, and which has an electric potential identical to that of one feeder corresponding to the one sealing portion around which the external conductor is arranged. | 07-08-2010 |
20100176722 | HIGH-PRESSURE DISCHARGE LAMP - A high-pressure discharge lamp may include a ceramic discharge vessel that encloses a discharge volume and at whose ends capillaries are fitted, an electrode system being led through in each capillary and sealed there, use being made of at least one electrode system that is based on tungsten and has an electrode head made from tungsten as first segment and a shaft made from tungsten as second segment, as well as a multipartite leadthrough having a pin projecting on the outside at the end of the capillary, wherein the multipartite leadthrough has a central cylindrical leadthrough part made from tungsten as third segment of the electrode system inside the capillary, which adjoins the second segment, as well as a fourth multipartite segment inside the capillary, consisting of a core pin that is made from tungsten, has a diameter of at most 300 μm and is partially surrounded by a tubular sleeve, the pin being connected to the projecting pin, a gap remaining between the sleeve and projecting pin, and the end of the capillary being sealed by means of solder glass up to at least the beginning of the sleeve. | 07-15-2010 |
20100187993 | Extra high pressure mercury lamp - An extra high pressure mercury lamp that includes an arc tube, which includes a light emission section enclosing 0.2 mg/mm | 07-29-2010 |
20100187994 | HIGH-PRESSURE DISCHARGE LAMP - The invention relates to a high-pressure discharge lamp, having a ceramic discharge vessel comprising a capillary ( | 07-29-2010 |
20100201265 | HIGH PRESSURE DISCHARGE LAMP - In a high pressure discharge lamp having electrode rods with grooves formed in a part thereof and embedded and sealed in sealing parts of a discharge vessel, breakage of the sealing parts because of the grooves is prevented without impairing the mechanical strength of the electrode rods, in which the grooves are formed, by the high pressure discharge lamp comprising: a discharge vessel having a light emitting part and sealing parts connected to both ends of said light emitting part; and electrodes comprising electrode rods and electrode tip end parts arranged oppositely to each other in the light emitting part, said electrode rods being embedded in a respective one of said sealing parts, and axially directed grooves being formed in at least part of the surface of said electrode rods, wherein a diameter measured at groove bottom parts of the grooves of said electrode rods is larger than a diameter of the electrode rods in a part where no grooves are formed. | 08-12-2010 |
20100201266 | HIGH PRESSURE DISCHARGE LAMP - To provide a high pressure discharge lamp in which no fusing of the metal foil occurs even if the high pressure discharge lamp is switched on for a certain time a high pressure discharge lamp is provided having a discharge vessel comprised of a light emission part and sealing parts made of glass connected to opposite ends of said light emission part; metal foils buried in a respective one of said sealing parts; a pair of electrodes comprised of core rods and tip end parts, said tip end parts being arranged oppositely to each other in the light emission part; and said core rods being melted and fused together with a respective one of the metals foils; wherein cavities are formed which reach from a surface of a respective one of the metal foils to an interior of the core rod, and the glass constituting said sealing part has entered into said cavities. | 08-12-2010 |
20100219752 | QUARTZ BULB FOR DOUBLE ENDED DISCHARGE LAMP - In a case of manufacturing a double ended discharge lamp, it is intended to decrease the manufacturing cost while maintaining identical lamp characteristic and lamp lifetime with those in a case of forming a quartz bulb with quartz at a high purity. | 09-02-2010 |
20100259169 | METAL HALIDE LAMP - It is aimed at providing a metal halide lamp including sealed metal foils embedded within sealing portions, each metal foil having surfaces formed with height differences thereon, thereby restricting occurrence of crack leaks in the sealing portions. A metal halide lamp MHL comprises: a light-transmitting hermetic vessel | 10-14-2010 |
20100270921 | DISCHARGE LAMP - A discharge lamp includes an airtight tube including a light-emitting unit in which a space is formed and seal portions formed at least on one end of the light-emitting unit, a discharge medium including a metal halide and a rare gas sealed in the light-emitting unit, a metal foil sealed into the seal portion, and a pair of electrodes one ends of which are overlapped and connected to the metal foil and the other ends of which are provided such that they are led into the space of the light-emitting unit and arranged in opposition to each other. A concavity is formed on at least a portion of the back surface side of the metal foil on which the electrode is overlapped, and a compression distortion is formed on the seal portion in the vicinity of the concavity. | 10-28-2010 |
20100295448 | VEHICLE DISCHARGE LAMP - A vehicle discharge lamp is provided with an outer tube, an arc tube disposed within the outer tube, and a pair of electrodes disposed within the arc tube. The arc tube includes a light emitting portion, and a pair of pinch seal portions. Molybdenum foils are sealed in the respective pinch seal portions. Each of the electrodes includes a sealed portion sealed within the pinch seal portion, a projecting portion projecting into the light emitting portion, and a welding portion welded to the molybdenum foil. A concavo-convex part is formed on the sealed portion. | 11-25-2010 |
20100295449 | VEHICULAR DISCHARGE LAMP - A vehicular discharge lamp includes a pair of electrodes including sealed portions sealed in a pair of pinch seal portions of a light emitting tube, wherein each of the sealed portions is segmented into: a first intermediate region positioned in the middle of the electrode in an axial direction; two end regions configured as both end portions of the sealed portion in the axial direction; and two second intermediate regions positioned between the first intermediate region and the end regions, respectively, wherein concave or convex fabrication portions are formed in the second intermediate regions, and wherein a ratio of formation area of the fabrication portions to an area of an outer peripheral surface of the first intermediate region is set to be smaller than that of the formation area of the fabrication portions to an area of outer peripheral surfaces of the second intermediate regions. | 11-25-2010 |
20100301745 | HIGH PRESSURE DISCHARGE LAMP - A high-pressure discharge lamp may include a ceramic discharge vessel and a longitudinal axis, with electrodes respectively being led out from the discharge vessel by means of a feed-through via capillaries, wherein a tubular cermet part, which consists of individual layers of different composition layered axially in succession, is fitted on the capillary, each layer containing Mo and Al | 12-02-2010 |
20100308722 | Melting film, method for the production thereof, and lamp having such a film - A method for producing a seal-in foil for the gas-tight electrical feed in a lamp is provided. The seal-in foil may be separated from a foil perform. The method may include forming a weakened zone and separating the seal-in foil along the weakened zone. | 12-09-2010 |
20110025203 | High pressure discharge lamp - The present invention relates to a high pressure discharge lamp that includes a pair of electrodes, which face each other in an electric discharge space. Further, an electrode axis of one of the electrodes is joined to a metallic foil in a sealing portion, and two or more grooves are formed in an axis direction on a portion corresponding to the sealing portion on the electrode axis. Furthermore, a remaining portion that lacks grooves is left on the electrode axis in a metallic foil side thereof, and the metallic foil side ends of the grooves are not aligned with each other in the axis direction thereof. | 02-03-2011 |
20110043108 | SEAL AND LEG DESIGN FOR CERAMIC INDUCTION LAMP - A ceramic arc body includes a main body having a chamber. A leg extends from the main body and has an internal opening therethrough that communicates with the chamber. An electrically non-conductive seal member is received in the leg opening. A tapered internal surface abuttingly engages the seal member and provides for centering of the seal member relative to the leg. A separate tapering region, shoulder, or stop surface limits insertion of the seal member into the leg opening for precision location of the seal member, and in another embodiment, a single continuous taper inside the leg cooperates with a tapered seal member for both centering and precision insertion of the seal member into the leg. In another embodiment, a hybrid electrode is employed where one portion of the hybrid electrode is electrically non-conductive and a second portion of the electrode is electrically conductive. The hybrid electrode mechanically supports both the lamp and the starting coil and also provides electrical connection to the starting coil. | 02-24-2011 |
20110043109 | LAMP WITH AT LEAST ONE BASE - To provide a configuration for a lamp with at least one base comprising a light emission element arranged in a light-emitting tube, external leads supplying energy to said light emission element, an antioxidant layer covering said external leads, sealing portions sealing metal foils connected electrically to said external leads and bases fixed via an adhesive to said sealing portions, the adhesive fixing said base does not directly contact said antioxidant layer. | 02-24-2011 |
20110074285 | HIGH PRESSURE DISCHARGE LAMP WITH A CAPACITIVE STARTING AID - A high pressure discharge lamp with a capacitive starting aid is provided. The high pressure discharge lamp may include an outer bulb; a discharge vessel that is accommodated in the outer bulb, the discharge vessel comprising at least one end with a seal in which an electrode system is fastened; a frame holding the discharge vessel in the outer bulb; and a starting aid fastened on the seal. The starting aid may have two functional parts. | 03-31-2011 |
20110095683 | High pressure discharge lamp and method of manufacturing high pressure discharge lamp - A high pressure discharge lamp has a sealing portion that is made of glass and a sealing metal piece. In a method of manufacturing the high pressure discharge lamp, the sealing metal piece is irradiated with laser beam whose pulse width is 1×10 | 04-28-2011 |
20110175525 | ELECTRODE FOR A DISCHARGE LAMP AND A DISCHARGE LAMP AND METHOD FOR PRODUCING AN ELECTRODE - In various embodiments, an electrode for a discharge lamp is provided. The electrode may include a metal pin that has a section around which a coil made of metal wire is wound, wherein the metal wire is flattened. | 07-21-2011 |
20110254438 | ARC TUBE FOR DISCHARGE BULB - An arc tube for a discharge bulb, comprising a sealed glass bulb in which luminous materials are sealed; a plurality of pinch-sealed portions made of quartz glass and formed at both end portions of the sealed glass bulb; a plurality of molybdenum foils each pinch sealed in the corresponding pinch-sealed portion; a pair of electrode rods provided in the sealed glass bulb so as to face each other, wherein each of electrode rods extends from the sealed glass bulb to the corresponding pinch-sealed portion and is connected to one end of the corresponding molybdenum foil; and a plurality of lead wires each connected to the other end of the corresponding molybdenum foil, wherein the molybdenum foils comprise a plurality of closed cavities therein. | 10-20-2011 |
20110260610 | METAL HALIDE LAMP - The invention provides a metal halide lamp | 10-27-2011 |
20110298365 | COMPACT METAL HALIDE LAMP WITH SALT POOL CONTAINER AT ITS ARC TUBE ENDPARTS - A high intensity discharge light source includes an arc tube having a longitudinal axis and a main central discharge chamber formed therein. The arc tube includes first and second electrodes having inner terminal ends spaced from one another along the longitudinal axis. Each electrode extends at least partially into the main central discharge chamber or reaches the end portions of the main central discharge chamber. The arc tube includes first and second sub-chambers located at opposite ends of a main central discharge chamber. The sub-chambers are located entirely axially outward from the inner terminal ends of the electrodes to form cold spot locations for the dose pool outside the main central discharge chamber. | 12-08-2011 |
20120086333 | METAL HALIDE LAMP SHROUDING - A discharge lamp such as a shrouded metal halide lamp is designed to reduce the potential for arcing under hot restart or restrike voltages. A stepped conformation of the pinch seal region limits arcing within the shroud while different dimensions of stems in the base increase the distance between outer lead wires in the base to prevent arcing externally of the shroud. | 04-12-2012 |
20120091891 | ARC TUBE FOR DISCHARGE BULB AND DISCHARGE BULB INCLUDING THE SAME - An arc tube for a discharge bulb includes: an electrode assembly that has an electrode bar and a molybdenum foil, wherein an overlapping portion of an end portion of the electrode bar and a molybdenum foil is joined by spot welding; a pinch seal portion that seals a part of the electrode assembly, the part including at least the molybdenum foil; and a closed glass bulb, into which a tip of the electrode bar protrudes, the closed glass bulb forming a discharge light-emitting portion, wherein the size of a recess, which is a weld mark, in the molybdenum foil on the side opposite to a joint portion, at which the molybdenum foil and the electrode bar are joined with each other, is within a range from 0.07 mm | 04-19-2012 |
20120112632 | FLASH DISCHARGE TUBE ELECTRODE AND FLASH DISCHARGE TUBE - A flash discharge tube electrode sealed to the end of the glass bulb of a flash discharge tube includes an internal electrode led into the glass bulb; a sintered electrode structure connected to the top end of the internal electrode, with an external diameter equal to or smaller than that of the internal electrode, and a projection made of a high-melting-point metal, provided so as to partially project from the top end face of the sintered electrode structure. | 05-10-2012 |
20120119644 | Xenon short arc lamp - A xenon short-arc lamp includes an arc tube containing a first electrode and a second electrode, sealing tubes on both edges of the arc tube and supporting tubes that are supported in the sealing tubes. Core rods of the first electrode and the second electrode are inserted through and supported by the supporting tubes. A high alternating voltage is applied at the start of the lighting. A trigger wire that is electrically connected to the first electrode is wound around an outer surface of the second electrode side sealing tube at an arc tube side position other than a location of the sealing tube that faces the metal foil. The trigger wire may be wound around an rising part of the arc tube. | 05-17-2012 |
20120133279 | ARC TUBE AND METHOD OF MANUFACTURING SAME - An arc tube includes a light emitting body for light therein and a ceramic tube having a first capillary and a second capillary integral with respective opposite sides of the light emitting body. A first electrode is inserted and sealed in the first capillary, and a second electrode is inserted and sealed in the second capillary. The first electrode is sealed in the first capillary by shrink fitting. | 05-31-2012 |
20120139412 | HIGH-PRESSURE DISCHARGE LAMP HAVING AN IGNITION AID - A high-pressure discharge lamp with an ignition aid has a discharge vessel which is mounted in an outer bulb, the discharge vessel comprising two ends having seals in which electrodes are secured, and a frame having a clip wire retaining the discharge vessel in the outer bulb. The clip wire comprises a plate-like part acting as an ignition aid and facing the seal of the opposite pole electrode. | 06-07-2012 |
20120139413 | HIGH-PRESSURE DISCHARGE LAMP WITH STARTING AID - A high-pressure discharge lamp having an ignition aid, mounted in an outer bulb, wherein the discharge vessel comprises two ends having seals in which electrodes are mounted and wherein a frame having a clip wire retains the discharge vessel in the outer bulb. The clip wire is bent toward the seal of the opposite pole electrode until the bent part formed thereby acts as an ignition aid. | 06-07-2012 |
20120161622 | High-pressure discharge lamp with starting aid - A high-pressure discharge lamp with a starting aid has a discharge vessel, the discharge vessel being held in an outer bulb by means of a frame. A UV enhancer which is fixed directly by means of the frame is used as the starting aid. | 06-28-2012 |
20120223638 | HIGH-PRESSURE DISCHARGE LAMP HAVING A STARTING AID - In various embodiments, a high-pressure discharge lamp including a starting aid and a longitudinal axis having a ceramic discharge vessel that is housed in an outer bulb, the discharge vessel having two ends having including capillaries with electrodes fastened therein, wherein a frame having a hanger wire holds the discharge vessel in the outer bulb and the hanger wire is configured so that it includes a plate-like starting aid toward the capillary of the opposite-pole electrode, with the plate-like starting aid being configured as a foil or metal sheet and the plate-like starting aid further including a means for purely mechanical fastening to at least the capillary. | 09-06-2012 |
20120223639 | METHOD FOR MANUFACTURING A CONDUCTIVE CONNECTION OF A METALLIC ELECTRODE WIRE AND A METALLIC LEAD-IN WIRE - This invention describes a method for manufacturing a conductive connection of a metallic electrode wire ( | 09-06-2012 |
20120235563 | DISCHARGE LAMP BULB - A discharge lamp bulb includes an arc tube having: a pair of electrodes that are opposed to each other inside a luminous tube; an outer tube having the luminous tube therein; a pair of lead wires connected to the electrodes; and a metal band mounted on an outer periphery of the outer tube, a support plug having: a plug body having a hollow, inner cylindrical section therein that opens at a front end; an arc-tube support portion mounted on a front-end edge of the inner cylindrical section; and a flange, and a lead support wire extending outside the outer tube in the longitudinal direction and connecting one of the lead wires with the support plug, wherein a front-end face of the inner cylindrical section is substantially flush with a front-end face of the flange or positioned on a back-end side with respect to the front-end face of the flange. | 09-20-2012 |
20120256539 | ELECTRODE FOR USE IN A LAMP - The invention describes an electrode ( | 10-11-2012 |
20120274207 | LAMP - A thick-walled electroded lamp ( | 11-01-2012 |
20120286656 | ELECTRODE MOUNT, HIGH PRESSURE DISCHARGE LAMP USING THE SAME, AND MANUFACTURING METHODS OF ELECTRODE MOUNT AND HIGH PRESSURE DISCHARGE LAMP - To prevent bending of an electrode shaft portion by a method which requires minimum increase in production cost, in an electrode mount for a high pressure discharge lamp. A manufacturing method of an electrode mount for the high pressure discharge lamp includes: a process of subjecting the electrode mount to a heat treatment, the electrode mount including an electrode and a metal foil which are welded to each other; and an oxidation process of producing an oxide on a surface of the electrode shaft portion of the electrode by laser irradiation to form an oxidation portion on the surface, wherein a laser irradiation position is determined such that a whole or part of the oxidation portion is included in a sealing portion of the high pressure discharge lamp when the electrode mount is embedded in the sealing portion. | 11-15-2012 |
20120293066 | BURNER WITH REDUCED HEIGHT AND METHOD OF MANUFACTURING A BURNER - It is provided a burner ( | 11-22-2012 |
20130026912 | HIGH PRESSURE DISCHARGE LAMP - A high pressure discharge lamp includes a light emission section in which a pair of electrodes is arranged, sealing portions formed from both ends of the light emission section, external leads, and a trigger wire provided near the light emission section. The trigger wire includes a first coil portion, which is wound from a vicinity of a boundary between the light emission section and one of the sealing portions towards an outer end of the one of sealing portions, and a linear stretch-across portion, which extends from the first coil portion near the light emission section towards the external lead extending from an outer end of the other sealing portion and is fixed to the external lead. A second coil portion is formed around the other sealing portion. The wire, which forms the stretch-across portion, is held between the second coil portion and the other sealing portion. | 01-31-2013 |
20130038208 | Lamp Device and Light Source Module with Coil Connecting Tube - A lamp device and a light source module are provided. The lamp device includes a lamp body and a coil connecting tube. The lamp body has an end portion and a lead wire extends from the end portion. The coil connecting tube is disposed corresponding to the end portion of the lamp body and electrically connecting to the lead wire for power supply purpose. The coil connecting tube winds about an axial direction of the lamp body and is capable of stretching or compressing along the axial direction. The light source module includes the lamp device and a lamp connector which has a power source portion being coupled to the coil connecting tube for power supply. | 02-14-2013 |
20130093318 | Conductive Layer Net Ignition Aids - Embodiments of the present invention relate to high intensity discharge (“HID”) lamps which have an electrically insulating arc tube including a central portion with an interior discharge region and two legs each extending from an end of the central portion, the central portion being a larger size than the legs. Electrical conductors extend through each of the legs and are ending in electrode components which are spaced apart from each other in the discharge region. A light transmitting envelope encloses the arc tube, and a frame member is electrically attached to one of the electrical conductors. Pursuant to some embodiments, an ignition aid is provided which includes an electrically conductive element disposed on one of the legs. The ignition aid includes a conductive layer that extends from the electrically conductive element to the central portion. | 04-18-2013 |
20130134870 | High-Pressure Discharge Lamp - A high-pressure discharge lamp comprising a translucent discharge vessel which encloses a discharge space and has two sealed ends. Two electrodes extend from the sealed ends into the discharge space, and a fill is arranged in the discharge space for generating a gas discharge. Electrical feeds lead out of the sealed ends for supplying energy to the electrodes, with an electrically conductive layer acting as an ignition aid being arranged on the surface of the discharge vessel. The electrically conductive layer comprises at least a first layer section and a second layer section, the first layer section being arranged on a first sealed end of the discharge vessel and extends onto the surface of that region of the discharge vessel which encloses the discharge space. The second layer section is arranged on the second sealed end of the discharge vessel and extends onto the surface of that region of the discharge vessel which encloses the discharge space. The parts of the first and second layer sections which are arranged on the surface of that region of the discharge vessel which encloses the discharge space are arranged at a distance from one another, and the layer sections are DC-isolated. | 05-30-2013 |
20130169150 | INCREASED WEIGHT OF EMISSION MATERIALS ON FLUORESCENT LAMP ELECTRODES - A fluorescent lamp has increased weight of emission mix material on the metal coils forming the electrodes. The coating layer of emission mix material includes in the range of 70 weight % to 85 weight % alkaline earth carbonate content. The coating layer of emission mix material has a particle size distribution by volume with two maxima, and one of the maxima is at a particle size that is no more than half and up to one tenth smaller than of the particle size of the other maximum. The smaller of the two maxima constitutes 10 weight % to 40 weight % of the alkaline earth carbonates in the coating layer of emission mix material. A method for making fluorescent lamp includes the step of installing at least one electrode coated with an emission mix material including more than 70 weight % alkaline earth carbonate content. | 07-04-2013 |
20130181604 | HIGH-PRESSURE DISCHARGE LAMP HAVING A CAPACITIVE IGNITION AID - A high-pressure discharge lamp having an ignition aid may be provided, having a discharge vessel that is surrounded by gas, wherein the discharge vessel includes two ends having fusings in which electrodes are secured, wherein an ignition aid is fastened on at least one fusing, wherein the ignition aid has a local field amplifier in the form of a tip or a curved part, wherein the ignition aid is configured to cause a corona discharge in the surrounding gas which emits UV radiation into the discharge vessel. | 07-18-2013 |
20130241405 | CERAMIC BUSHING FOR A HIGH-PRESSURE DISCHARGE LAMP - A bushing for a high-pressure discharge lamp, which is suitable for connecting an electrode in the interior of a ceramic discharge vessel to a supply lead in a gastight manner on the exterior of the discharge vessel, wherein the bushing is an electrically conductive ceramic composite consisting of a mixture of LaB | 09-19-2013 |
20130285542 | METAL HALIDE LAMP - It is an object of the present invention to provide a metal halide lamp in which arc discharge in the initial stage of lamp lighting can be stabilized. A metal halide lamp includes a translucent outer tube with a base formed at one end thereof and a light-emitting portion disposed in the outer tube. This metal halide lamp is configured as a vertical mounting type such that the base thereof looks toward the upper side. The discharge tube has mercury and metal halides enclosed therein. Assuming that a lamp rated power is P [W], then a mercury concentration d(Hg) [μmol/cm | 10-31-2013 |
20140062295 | SEALING COMPOUND AND CERAMIC DISCHARGE VESSEL COMPRISING SUCH SEALING COMPOUND - Disclosed is a lamp comprising a ceramic discharge vessel ( | 03-06-2014 |
20140117847 | GAS DISCHARGE LAMP AND AN ELECTRODE FOR A GAS DISCHARGE LAMP - An electrode for a gas discharge lamp having a massive electrode head and an electrode rod connected thereto, which has a guide section which can be led through a wall of a discharge vessel of the gas discharge lamp or can be fused into said wall or can be encompassed by said wall. The grid structure of at least one section of the electrode rod has doping. At least one section of the electrode head consists of highly pure tungsten. A concentration of a contaminant is less than 10 ppm. | 05-01-2014 |
20140175975 | CERAMIC METAL HALIDE LAMPS WITH CONTROLLED COLD SPOT - Apparatus and methods for controlling the cold spot in a high-intensity discharge lamp. In an embodiment, an elongated arc tube has an inner wall defining a discharge chamber that includes a metal halide dose. A first leg extends from the arc tube in a first direction and a second leg extends from the arc tube in a second direction that is opposite the first direction. The first electrode is disposed within the first leg such that no voids exist between the first electrode and an entire inner portion of the first leg. Likewise, a second electrode disposed within the second leg has no voids between it and an entire inner portion of the second leg. The arc tube also has a first annular bucket structure within the discharge chamber formed by a nub surrounding the first tip and an interior wall portion, and a second annular bucket structure within the discharge chamber formed by a nub surrounding the second tip and a second interior wall portion. As a result, when the high-intensity discharge lamp is in a vertical operating position a cold spot is formed in one of the first and second annular bucket structures. | 06-26-2014 |
20150303048 | FLASH LIGHT DISCHARGE TUBE AND STROBE DEVICE PROVIDED WITH SAME - A flash discharge tube includes a cylindrical glass bulb filled with a rare gas; a pair of main electrodes sealed to both ends of the glass bulb via bead glasses; rough surfaces formed at least in the regions to which the bead glasses are welded, the regions being on the outer circumferential surfaces of the pair of main electrodes; and hard microparticles adhered to the rough surfaces. The hard microparticles are embedded in the rough surfaces. This increases the connection strength between the bead glasses and the pair of main electrodes, thereby ensuring the sealing performance between the bead glasses and the pair of main electrodes. | 10-22-2015 |
20150348735 | METHOD OF MANUFACTURING FLUORESCENT LAMP AND FLUORESCENT LAMP MANUFACTURED USING THE SAME - Disclosed herein are a method of manufacturing a fluorescent lamp and a fluorescent lamp manufactured using the same. The method includes preparing a flare having an upper surface that corresponds to a cross-sectional area of a glass tube of the lamp, manufacturing a stem by forming a lead-in wire and an exhaust tube that pass from a lower surface of the flare to the upper surface thereof and connecting a filament to the lead-in wire of the stem, and melting a circumference of the upper surface of the flare of the stem, introducing the filament into the glass tube via an opening thereof, and contact sealing the upper surface of the flare to an end of the glass tube in such a way that the stem is located outside the glass tube. | 12-03-2015 |
20160013008 | MANUFACTURING METHOD OF HIGH-PRESSURE DISCHARGE LAMP AND SEALED PART STRUCTURE FOR HIGH-PRESSURE DISCHARGE LAMP | 01-14-2016 |