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| Number | Title | Issue Date |
| 7893617 | Metal electrodes for electric plasma discharge devices An all-metal electron emissive structure for low-pressure lamps is disclosed. The all-metal electron emissive structure consisting of one or more metal is operable to emit electrons in response to a thermal excitation, wherein an active region of the electron emissi... | 02/22/2011 |
| 7489078 | High-pressure discharge lamp A high-pressure discharge lamp has a pressure chamber with two opposite end regions and delimited by a cylindrical envelope made of glass. An electrode is provided at each of the two end regions, the electrodes projecting into the pressure chamber and being arranged... | 02/10/2009 |
| 7438620 | Arc tube of discharge lamp having electrode assemblies receiving vacuum heat treatment and method of manufacturing of arc tube In an arc tube for discharge lamp, an electrode assembly is formed by integrally joining an electrode rod, a molybdenum foil, and a molybdenum lead wire. The electrode assembly is sealed into pinch seal portions located at both ends of a glass tube. The electrode as... | 10/21/2008 |
| 7414366 | Single-ended discharge vessel with diverging electrodes A ceramic discharge vessel for a high-intensity discharge lamp includes a hollow body and two capillaries attached to the body. The capillaries have respective electrodes therein, where portions of the electrodes inside the body are spaced from each other and have l... | 08/19/2008 |
| 7397190 | Gas discharge lamp for extreme UV radiation The invention relates to a gas discharge lamp for EUV radiation with an anode (1) and a hollow cathode (2), wherein the hollow cathode (2) has at least two openings (3, 3′) and the anode (1) has a through hole (4), which i... | 07/08/2008 |
| 7394199 | Homogeneous cathode unit Cathode unit for installation in a fluorescent tube body (3) belonging to a fluorescent tube (1), which cathode unit (5) comprises a cathode screen (15a, 15, 15′-15″″) which partially surrounds an electrode (... | 07/01/2008 |
| 7385353 | Low-pressure discharge lamp The invention relates to a low-pressure discharge lamp comprising a glass discharge vessel (1) which is substantially tubular in form and which is closed in a gas-tight manner on the ends thereof, a filling consisting of an inert gas mixture and quicksilver, ... | 06/10/2008 |
| 7382093 | Device for operation of a discharge lamp of the short arc type A device for operating a discharge lamp of the short arc type having a feed device which supplies a direct current to the discharge lamp when operation starts and an alternating current afterwards, in which the feed device supplies a direct current which is smaller ... | 06/03/2008 |
| 7309146 | Backlight having discharge tube, reflector and heat conduction member contacting discharge tube A display device includes a backlight having a discharge tube and a reflector. A heat conduction member is attached to the reflector in contact with the discharge tube, so that a part of the discharge tube is locally cooled by the heat conduction member. Liquid merc... | 12/18/2007 |
| 7282864 | Discharge lamp and control of the same A discharge tube is driven by a multiple-phase drive circuit, and includes a discharge container having an internal discharge space and multiple electrodes that are secured to the discharge container and correspond to each phase of the multiple-phase drive circuit. ... | 10/16/2007 |
| 7282861 | Light source device, lighting device and liquid crystal display device A light source device has a bulb, a discharge medium containing rare gas sealed inside the bulb, an internal electrode disposed inside the bulb, and an external electrode disposed outside the bulb. A holder member holds the external electrode so that the external el... | 10/16/2007 |
| 7253568 | High pressure discharge lamp lighting apparatus It is an object of the present invention to provide a high pressure discharge lamp lighting apparatus, has a structure to control decrease of illuminance on a screen which is thought to be a cause of wear of an anode in an early stage of the life span. The high pres... | 08/07/2007 |
| 7241306 | Narrow-band UV-B phototherapeutic device A narrow-band UV-B phototherapeutic device includes: a light source unit that includes a fluorescent lamp of planar structure that is the ultraviolet light source for emitting narrow-band UV-B; a power supply for causing the fluorescent lamp to emit light; and a con... | 07/10/2007 |
| 7187129 | High pressure gas discharge lamp and method of manufacturing the same High pressure vapor discharge lamp provided with a discharge vessel. The discharge vessel encloses a discharge space provided with a filling of mercury and a rare gas, for example, in a gastight manner. An electrode is arranged in the discharge space for generating ... | 03/06/2007 |
| 7176633 | Arc lamp with an internally mounted filter An arc lamp with a filter mounted internally has been disclosed. The arc lamp includes an anode, a cathode, a body defining a cavity, wherein the anode and the cathode are inside the cavity, and a filter mounted within the cavity. Other embodiments are claimed and d... | 02/13/2007 |
| 7170229 | Short arc type super high pressure discharge lamp A short arc type super high pressure discharge lamp has a pair of electrodes, a light emitting portion in which greater than 0.15 mg/mm3 of mercury is enclosed, and sealing portions provided on both sides of the light emitting portion, wherein at least on... | 01/30/2007 |
| 7141922 | Dual spiral fluorescent lamp The present invention discloses a dual spiral fluorescent lamp that is smaller in volume than a conventional one. To provide for a reduced size compact fluorescent lamp, the end portions of the spiral glass tube are anchored into the holes within the cover of a bi-p... | 11/28/2006 |
| 7057345 | Short arc discharge lamp and light source device A short arc discharge lamp has improved starting properties in which there is no danger of damaging the arc tube that surrounds a discharge space and in which the radiant light from the arc tube is not adversely shielded. This is achieved by providing the short arc ... | 06/06/2006 |
| 7057347 | Electrode, manufacturing method thereof, and metal vapor discharge lamp A first electrode part in a rod shape is placed on an upper side, and a second electrode part in a rod shape having a higher melting point than that of the first electrode part is placed on a lower side, so that ends of the first and second electrode parts are broug... | 06/06/2006 |
| 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 |
| 6995514 | Electrode system for a metal halide lamp, and associated lamp The electrode system for a metal halide lamp with ceramic discharge vessel (4) comprises an electrically conductive leadthrough (9, 10) and an electrode connected thereto, the leadthrough having a fusible region with respect to the electrode, in which ... | 02/07/2006 |
| 6984938 | Metal vapor discharge lamp and lighting apparatus capable of stable maintenance of characteristics A metal vapor discharge lamp including an arc tube 1 that includes a container 10 and power transmission members 20a and 20b. The container 10, made of translucent ceramic, is divided into a main tube portion 11 | 01/10/2006 |
| 6965199 | Coated electrode with enhanced electron emission and ignition characteristics An improved electrode capable of smaller variances and mean breakdown voltage, increased breakdown reliability, smaller electron emission turn-on requirements, and stable electron emissions capable of high current densities include a first electrode material, an adh... | 11/15/2005 |
| 6949877 | Electron emitter including carbon nanotubes and its application in gas discharge devices An electron emitter includes a coating layer of a mixture of carbon nanotubes and alkaline-earth metal oxides on an electrically conducting structure. The preferred carbon nanotubes are those having a diameter less than about 200 nm. A substantial portion of electro... | 09/27/2005 |
| 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 |
| 6867544 | High pressure discharge lamp and method for producing the same A high pressure discharge lamp includes a luminous bulb in which a pair of electrodes are opposed to each other in the bulb. At least mercury and halogen are contained in the luminous bulb, and at least one metal selected from the group consisting of Pt, Ir, Rh, Ru ... | 03/15/2005 |
| 6800997 | 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... | 10/05/2004 |
| 6787981 | Flat type lamp and liquid crystal display apparatus having the same Disclosed is a flat type fluorescent lamp having a discharge space divided into a plurality of discharge areas. The flat type fluorescent lamp includes a first substrate, a second substrate separated from the first substrate in a predetermined distance to provide a ... | 09/07/2004 |
| 6777860 | Luminous element for lamp A luminous element (10) for a lamp is double helix-shaped, with two connection parts (18, 20) situated at one end of said double helix. The diameter (D1, D2) of the double helix increases consistently in the direction of the two connectio... | 08/17/2004 |
| 6774563 | Support for a lamp capsule and end-of-life device, lamp including such capsule, and method of coupling lamp capsule and end-of-life device to such support A support device is provided for use with an electric lamp having a sealed outer envelope that encloses an environment, and a lamp capsule and end-of-life device positioned within such environment. The support device serves to support the lamp capsule and the end-of... | 08/10/2004 |
| 6774547 | Discharge lamp having a fluted electrical feed-through A fluted feed-through for a discharge lamp includes a fluted ceramic core with plural channels and plural individual molybdenum or tungsten wires running in different ones of the plural channels. The wires are twisted together at the ends of the feed-through. The fe... | 08/10/2004 |
| 6759806 | 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... | 07/06/2004 |
| 6713957 | Super-high pressure discharge lamp of the short arc type A super-high pressure discharge lamp of the short arc type which has an arc tube portion in which there is a pair of opposed electrodes and which is filled with at least 0.15 mg/mm3 mercury, and side tube portions which extend from opposite sides of the a... | 03/30/2004 |
| 6713949 | Short arc type ultra-high pressure discharge lamp The present invention is a short arc type ultra-high pressure discharge lamp in which a pair of electrodes 3 are disposed inside an arc tube 1 that comprises quartz glass, seal portions 2 are formed that comprise quartz glass and extend to both ... | 03/30/2004 |
| 6703771 | Monochromatic vacuum ultraviolet light source for photolithography applications based on a high-pressure microhollow cathode discharge A light source with a sealed, light-transmissive tube filled with high pressure gases or high pressure gas mixtures and a microhollow cathode (MHC) discharge capable of excimer production are provided.... | 03/09/2004 |
| 6683413 | High pressure discharge lamp of the short arc type The object of the invention is to improve the thermal radiation characteristic of the electrodes in a high pressure discharge lamp of the short arc type in which the input power has been increased in order to increase the amount of radiant light, and to r... | 01/27/2004 |
| 6679746 | Method for producing discharge lamp and discharge lamp A method for producing a discharge lamp of the present invention includes the steps of: preparing a glass pipe for a discharge lamp having a luminous bulb portion and a side tube portion, and a single electrode assembly including an electrode structure po... | 01/20/2004 |
| 6680572 | Incandescent lamp comprising a glass bulb of tubular shape in which a filament is axially arranged An incandescent lamp comprising a glass bulb (3) of tubular shape in which a filament (4) is axially arranged. The end is hermetically sealed by means of a pinch (5) applied around a metal foil (1) to which an outer current lead (7) and an inner current l... | 01/20/2004 |
| 6639361 | Metal halide lamp A metal halide lamp using a ceramic arc tube in which less lamp flickering occurs, the flux maintenance factor during the lifetime is high and the possibility of lamp break-off is low. The metal halide lamp includes an arc tube 1 in which iodide pellet of... | 10/28/2003 |
