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| Number | Title | Issue Date |
| 8067892 | Method of forming a corona electrode substantially of chemical vapor deposition silicon carbide and a method of ionizing gas using the same A method is provided for forming a corona-producing emitter electrode by depositing substantially pure silicon carbide by CVD and forming a corona-producing emitter electrode with the deposited silicon carbide. In addition, a method of forming a corona-producing gas... | 11/29/2011 |
| 7952284 | High-pressure discharge lamp A metal halide lamp with a more stable lamp voltage, comprising a ceramic discharge vessel which encloses a discharge space, in which a first and a second electrode are arranged, which discharge vessel has a central zone extending between the electrodes and being cl... | 05/31/2011 |
| 7863818 | Coil/foil-electrode assembly to sustain high operating temperature and reduce shaling The invention relates to a barrier layer provided on the electrode assembly of a discharge lamp comprising at least a layer of nanoclusters of a non-oxidizing material. Further, the invention relates to an electrode assembly for a discharge lamp comprising an electr... | 01/04/2011 |
| 7808180 | Thorium-free electrode with improved color stability An electrode includes thorium as a minor component for a high-pressure discharge lamp, where the electrode rod is free of thorium/thorium oxide, or comprises thorium/thorium oxide, as a minor constituent. A covering member made of refractory metal, free of thorium/t... | 10/05/2010 |
| 7781977 | High temperature photonic structure for tungsten filament The invention is directed to a process for the creation of a photonic lattice on the surface of an emissive substrate comprising first depositing a thin film metal layer on at least one surface of the substrate, the thin film metal comprising a metal having a meltin... | 08/24/2010 |
| 7746000 | Discharge bulb A discharge bulb is provided. The discharge bulb includes an arc tube, a glass shroud cylindrically surrounding the arc tube, and an insulated plug fixedly supporting an end portion of the glass shroud. The arc tube includes a light generating portion having a disch... | 06/29/2010 |
| 7719194 | Inhibited oxidation foil connector for a lamp A foil connector (28, 30) suited for use in a lamp (10) is provided. The foil connector includes a substrate layer (40) formed from an electrically conductive material. A coating (42) is provided for reducing oxidation of the substrate du... | 05/18/2010 |
| 7710038 | Ceramic discharge vessel having molybdenum alloy feedthrough A ceramic discharge vessel is described that is provided a feedthrough comprised of a molybdenum alloy containing at least 75 weight percent molybdenum and greater than 5 weight percent of nickel and at least one other alloying metal selected from copper and iron, w... | 05/04/2010 |
| 7652430 | Broadband plasma light sources with cone-shaped electrode for substrate processing Broadband radiation may be generated by supplying a gas mixture containing hydrogen and/or deuterium and/or helium and/or neon to an enclosure, generating a plasma inside the enclosure with the gas mixture. Broadband radiation generated as a result of the plasma dis... | 01/26/2010 |
| 7586263 | Discharge lamp having a cathode and emitter assembly composed of tungsten and thorium oxide and joined through a carbide interface region A high pressure discharge lamp, in which an anode and a cathode are disposed opposite each other in a bulb, achieves a long service life due to thorium (Th) being stably supplied to the cathode tip for a long time after lamp operation has been commence since the for... | 09/08/2009 |
| 7569994 | High-load and high-intensity discharge lamp The present high-load and high-intensity discharge lamp includes a cathode made of a material which does not (substantially) include thorium but can be used as a cathode material of high heat load, so that a long lifetime and high stability corresponding to those of... | 08/04/2009 |
| 7528549 | Process for producing an electrode for high-pressure discharge lamps, and an electrode and a high-pressure discharge lamp with such electrodes A process for producing an electrode for high-pressure discharge lamps, at least the discharge-side section of the electrode being produced from a prefabricated tungsten wire, which is shortened to the required length during the production process of the electrode a... | 05/05/2009 |
| 7501765 | Emitter electrodes formed of chemical vapor deposition silicon carbide An ionizer emitter electrode is ideally formed of or at least partially coated with a carbide material, wherein the carbide material is selected from the group consisting of germanium carbide, boron carbide, silicon carbide and silicon-germanium carbide. Alternative... | 03/10/2009 |
| 7501766 | Lamp having an envelope with an oxidation resistant seal employing a unidirectional carbon fiber mat infiltrated with SiC There is described a lamp having a high-temperature glass envelope, at least one feedthrough assembly, and a light source disposed within the envelope; the at least one feedthrough assembly having an inner electrical lead connected to the light source, an outer elec... | 03/10/2009 |
| 7443100 | ARC tube discharge lamp with compression strain layer In a mercury-free arc tube, electrodes are configured by electrode rods heat-treated at 1,200 to 2,200° C. in a vacuum atmosphere, and which have a thickness of 0.3 mm or more. The size (radius R) of a residual compression strain layer formed around the electrode r... | 10/28/2008 |
| 7439676 | Cold cathode fluorescent lamp with molybdenum electrode A cold cathode fluorescent lamp (1) has feedthrough pins (5) made from molybdenum or a molybdenum alloy that form a glass-metal seal (6) with a glass composed of 55-75 wt. % SiO2, 13-25 wt. % B2O3, 0-10 wt. % Al | 10/21/2008 |
| 7423369 | Cold cathode for discharge lamp having diamond film 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. ... | 09/09/2008 |
| 7397191 | High pressure discharge lamp having a conical part and a cylindrical body part A high pressure discharge lamp in which the cathode has a cylindrical body part and a conical part which is doped with thorium dioxide (ThO2), and with a diameter which decreases in a direction from the body part toward the tip area of the conical part by... | 07/08/2008 |
| 7372212 | Lamp, method of driving the lamp, backlight assembly and liquid crystal display device having the backlight assembly A lamp, a method of driving the lamp, a backlight assembly having the lamp, and a liquid crystal display (LCD) device having the backlight assembly are disclosed. The lamp includes a tube that contains gas and first through fourth electrodes. The first and second el... | 05/13/2008 |
| 7368870 | Radiation emitting structures including photonic crystals Radiation emitting structures that include an active radiation emitter and a passive photonic crystal structure surrounding the emitter are disclosed. The passive photonic crystal structure is transparent to wavelengths of electromagnetic radiation within the visibl... | 05/06/2008 |
| 7358675 | Low-pressure discharge lamp and back light device using same A low-pressure discharge lamp (1) is provided that includes a glass tube (2) having an inner diameter in a range of 1 to 5 mm and a pair of electrodes (3) disposed at end portions in the glass tube (2). The pair of electrodes (3) c... | 04/15/2008 |
| 7352132 | Metal halide lamp and metal halide lamp lighting device with improved emission power maintenance ratio A metal halide lamp includes a refractory, light-transmitting hermetic vessel, a pair of electrodes sealed in thehermetic vessel, a discharge medium including a halide and a rare gas, and metal storing means storing at least one selected from the group consisting of... | 04/01/2008 |
| 7345426 | Alloy for a lead member of an electric lamp and electrode structure of the electric lamp An alloy for a lead member is used for an electric lamp having a metal/vitreous material interface. Molybdenum or tungsten serving as an electric lamp current conductor is used as a base for the lead member, wherein the molybdenum or tungsten contains titanium oxide... | 03/18/2008 |
| 7279839 | Short arc high-pressure discharge lamp A short arc high-pressure discharge lamp (1) for dc operation, includes a discharge vessel (2) that has two necks (4) diametrically opposite each other, in which an anode (26) and a cathode (7) made of tungsten are melted in a gast... | 10/09/2007 |
| 7276846 | Energy converter and light source An energy converter according to the present invention includes a filament 11 for converting given energy into electromagnetic waves and radiating the waves, and a radiation suppressing portion for suppressing some of the electromagnetic waves (e.g., infrared... | 10/02/2007 |
| 7218046 | Unitized chemically etched tungsten electrode A method of making a unitized tungsten electrode which exhibits superior mechanical and electrical properties which includes providing a length of cylindrical cut stock having a predetermined diameter and length. The stock is ground to form a rough unfinished electr... | 05/15/2007 |
| 7164233 | Barium-silica glass lamp having thermally balanced lead-in wires An automotive lamp has a sealed envelope of barium silica glass that is essentially free of cadmium and in which a light emitting element is contained. Lead-in wires extend through the envelope and are coupled to the light emitting element. The glass envelope and le... | 01/16/2007 |
| 7161297 | Electron emission thin-film, plasma display panel comprising it and method of manufacturing them An electron emission thin-film with improved secondary electron emission characteristics compared with conventional ones, a plasma display panel including the electron emission thin-film, and their manufacturing methods. Using a vacuum deposition system, a protectiv... | 01/09/2007 |
| 7150780 | Electrostatic air cleaning device An electrostatic air cleaning device includes an array of electrodes. The electrodes include corona electrodes connected to a suitable source of high voltage so as to generate a corona discharge. Laterally displaced collecting electrodes include one or more bulges t... | 12/19/2006 |
| 7145294 | Detecting apparatus for cold cathode lamp A detecting apparatus for a lamp is disclosed. The detecting apparatus includes a central processing unit for receiving a spectrum signal and converting the spectrum signal into a digital signal, a converter for converting the digital signal to an analog signal, a c... | 12/05/2006 |
| 7045961 | High-pressure discharge lamp There is provided an improved high-pressure discharge lamp which includes an arc tube encapsulating a halogen, and a pair of tungsten electrodes disposed in the arc tube. The oxygen content in the tungsten electrodes is not more than 15 ppm, while the amount of the ... | 05/16/2006 |
| 7038379 | High pressure discharge lamp and method for sealing a bulb thereof A high pressure discharge lamp includes a quartz glass bulb, a conductive element which is sealed at a sealing portion of the bulb, and a pair of electrodes. Each electrode is disposed in the quartz glass bulb so as to be opposite the other and connected to the cond... | 05/02/2006 |
| 7023217 | Method and apparatus for determining wear of resistive and conductive elements According to one embodiment, the present invention provides a system for determining wear of an electrical element. The system includes a current source, a voltmeter and a control unit. The control unit is operable to couple the current source and the voltmeter to a... | 04/04/2006 |
| 7004809 | Illuminant for discharge lamp A durable illuminant with simple structure and stable discharge characteristics is provided. Discharge electrodes fixed to respective sealing spacers are inserted into a housing from both ends, the housing constructed from a cylindrical glass material with equal inn... | 02/28/2006 |
| 6992430 | Electric discharge lamp An electric discharge lamp comprising: a light-transmissive ceramic lamp vessel (1); a first and a second current conductor (2,3) entering the lamp vessel (1), and each supporting an electrode (4,5) in the lamp vessel (1); an ioniz... | 01/31/2006 |
| 6969951 | High pressure discharge vessel for an alumina high-intensity discharge lamp A discharge vessel or chamber for a high-intensity discharge lamp is provided, including a central body having a discharge space provided therein, two capillaries closing off respective end openings of the central body and an electrode positioned within each respect... | 11/29/2005 |
| RE38807 | High pressure discharge lamp, with tungsten electrode and lighting optical apparatus and image display system using the same The present invention provides a high pressure discharge lamp which is provided with a discharge tube containing a pair of electrodes therein and being filled with mercury, an inert gas and a halogen gas, the amount of the mercury filled being 0.12 to 0.35 mg/mm | 10/04/2005 |
| 6943499 | Cold-cathode fluorescent lamp The present invention has an object to provide a cold-cathode fluorescent lamp which can suppress sputtering caused by electric discharge and reduce consumption of mercury so as to achieve a longer lifetime even if a lamp current is large and a lighting tube has a s... | 09/13/2005 |
| 6940228 | Long-life high-pressure discharge lamp and lamp unit using same A high-pressure discharge lamp comprises a lamp tube made of quartz glass and having a central portion formed in a spherical shape, and a pair of opposing tungsten electrodes inserted into the lamp tube. At least one of the tungsten electrodes is made of a tungsten ... | 09/06/2005 |
| 6936959 | Display apparatus A first molybdenum layer made of a molybdenum film, an aluminum conductive layer made of an aluminum-neodymium alloy film, a second molybdenum layer made of a molybdenum film and an insulating film layer made of a silicon dioxide film are stacked, in this order from... | 08/30/2005 |
