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| Number | Title | Issue Date |
| 8143787 | Xenon lamp A xenon lamp having a lamp tube made of silica glass containing titanium oxide and having a discharge chamber with a light emitting part containing xenon and in which a cathode and an anode are arranged in opposition to each other, the cathode and anode being mounte... | 03/27/2012 |
| 7397189 | Lamp device and projector therewith In a lamp device provided with an arc tube, a principal reflection mirror, and a sub-mirror; a decrease in illumination light, caused by a trigger line disposed to improve the turn-on characteristics of the arc tube, being suppressed. The lamp device include an arc ... | 07/08/2008 |
| 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 |
| 7218051 | Discharge tube A discharge tube includes a cylinder having first and second end planes, first and second discharge electrodes coupled to the respective first and second end planes, the first and second discharge electrodes having respective upper and lower discharge planes forming... | 05/15/2007 |
| 7214949 | Ion generation by the temporal control of gaseous dielectric breakdown An apparatus and method for ion generation are adapted such that an ionization process is controlled temporally, to first initiate, then to halt the breakdown of the gas before a destructive plasma or glow is formed. This method controls the release of energy to the... | 05/08/2007 |
| 7187131 | Discharge lamp with internal starting electrode An arc discharge light source (10) for automotive headlight applications comprises an arc tube (12) having a hollow body (14) arrayed along a longitudinal axis (16) and provided with first and second ends (18, 20). The first and se... | 03/06/2007 |
| 7141927 | ARC lamp with integrated sapphire rod A pulsed discharge arc lamp can utilize an integrated optical adapter assembly to ease the coupling of an optical fiber to the lamp. An optical rod of the assembly allows for a precise positioning of the output, and acts as an integrating rod whereby the output is t... | 11/28/2006 |
| 7102289 | Discharge tube A discharge tube is disclosed that includes: an airtight tube having first and second end surfaces each including a metallized surface; first and second discharge electrodes joined to the respective metallized surfaces; and multiple trigger lines formed on the inner... | 09/05/2006 |
| 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 |
| 7030564 | Low-pressure discharge lamp A low-pressure discharge lamp is described having a base housing (10), a discharge vessel (2), whose end sections are fixed to an end section of the base housing, and a contact-making system for making electrical contact with the lamp, which is located... | 04/18/2006 |
| 6960883 | Flash lamp device and flash emitting device A flash lamp device having a flash lamp that includes an arc tube in which a pair of electrodes are disposed in opposition and a high voltage supply proximal conductor which extends parallel to the electrodes, on the exterior of the arc tube of the flash lamp. The h... | 11/01/2005 |
| 6943498 | High intensity discharge lamp and high intensity discharge lamp system using the same To provide a high-efficiency and long-life high intensity discharge lamp that is obtained by a configuration in which a neon gas or a neon-based gaseous mixture is filled as a starting-assistance rare gas for an alumina ceramic arc tube, and a filling pressure is se... | 09/13/2005 |
| 6919686 | Discharge lamp having an auxiliary light source to produce light with a short wavelength The discharge lamp of the invention includes a main discharge vessel which is filled with a discharge medium for the main discharge via a pair of opposed main discharge electrodes, and has a first electrode sealing part and a second electrode sealing part for connec... | 07/19/2005 |
| 6741034 | Starting aid for high intensity discharge lamp A lamp assembly that comprises a hollow arc discharge light source having a center arc chamber containing an arc generating and sustaining medium and first and second ends with an electrode receiving capillary extending from each end and arrayed along a longitudinal... | 05/25/2004 |
| 6707251 | Flash discharge lamp A flash discharge lamp includes a pair of electrodes i.e. an anode and a cathode, oppositely disposed in at both ends of the glass bulb. An electro-conductive member is provided on the outer surface of the glass tube. A triggering electrode is mounted on the cathode... | 03/16/2004 |
| 6639365 | Ultra-compact arc discharge lamp system with an additional electrode An arc discharge lamp system comprises a third electrode for igniting the arc discharge lamp in addition to first and second electrodes which provide a main discharge current path for sustaining arc discharge after the lamp has been ignited by a high-volt... | 10/28/2003 |
| 6563265 | Applying prealloyed powders as conducting members to arc tubes An arc discharge lamp comprising an arc tube including a starting aid is provided. The starting aid comprises at least one prealloyed powder bound to the surface of the arc tube.... | 05/13/2003 |
| 6538377 | Means for applying conducting members to arc tubes An arc discharge lamp comprising an arc tube including a starting aid is described. The starting aid comprises at least one metal cermet coating applied to the surface of the arc tube, or a metal layer including refractory glass disposed over said cermet ... | 03/25/2003 |
| 6445129 | Gas discharge lamp, in particular for motor-vehicle headlights A gaseous-discharge lamp, in particular for motor-vehicle headlamps, includes a burner vessel made of glass or the like that contains a gas. Into this burner vessel extend two main electrodes via two gas-tight electrode bushings. Between the end regions o... | 09/03/2002 |
| 6437494 | Dielectric barrier discharge lamp At the outer boundary of a discharge container 1, a pair of opposed electrodes 3a and 4a and a pair of opposed electrodes 3b and 4b are disposed with a specified spacing being given between them, and to each pair of opposed electrodes, a high-frequency vo... | 08/20/2002 |
| 6380679 | Short-arc discharge lamp with a starting antenna A short-arc discharge lamp (1) is provided with a translucent lamp vessel (10) which is closed in a gas-tight manner and which is provided with an ionizable fill. A first and a second electrode (11a, 11b) are arranged in the lamp vessel (10) which are eac... | 04/30/2002 |
| 6262533 | Starting electrode for high pressure discharge lamp A high pressure discharge lamp comprises a vessel made of a non-conductive material which forms an inner space filled with an ionizable light-emitting material and a starting gas, the vessel having first and second opening portions at both ends thereof, a... | 07/17/2001 |
| 6198223 | Capacitive glow starting of ceramic high intensity discharge devices An arc tube for a discharge lamp comprises an hermetically sealed hollow body containing an arc generating and sustaining medium therein and having first and second ends. An electrode receiving capillary extends from each end and an electrode structure is... | 03/06/2001 |
| 6127778 | Lampholder and lighting unit comprising a lampholder A lampholder in accordance with the invention can suitably be used for a low-pressure discharge lamp (a) which operates at a high frequency and which comprises an elongated, tubular discharge vessel (b), said lamp being provided with a pair of electrodes ... | 10/03/2000 |
| 5955846 | Discharge lamp lighting device and a method for lighting a discharge lamp A discharge lamp lighting device according to the present invention includes: a discharge lamp including an electrode; and a lighting circuit for lighting the discharge lamp, the lighting circuit being connected to the discharge lamp, wherein the discharg... | 09/21/1999 |
| 5909082 | Starting aid for high intensity discharge lamps A high intensity discharge lamp comprises an elongated, main arc tube containing a gas fill. First and second in-leads are connected to first and second electrodes within the arc tube, with an arc gap being defined in the arc tube between the electrodes. ... | 06/01/1999 |
| 5646483 | Discharge lamp having cesium compound A discharge lamp or an electrodeless discharge lamp including a discharge gas filled inside a bulb, an electrode part present inside the bulb for emitting thermoelectrons into the discharge gas, and a cesium compound placed in a position other than the el... | 07/08/1997 |
| 5519285 | Electrodeless discharge lamp An electrodeless discharge lamp includes a discharge gas sealed in a lamp tube. The discharge gas includes a halide of rare earth metal. An auxiliary electrode is disposed on or adjacent to an outer periphery wall of the lamp tube such that the auxiliary ... | 05/21/1996 |
| 5391960 | Cold cathode tube for generating light with uniform intensity along the tube A cold cathode tube in which an auxiliary electrode formed of an electric conductive material is provided on an outer surface of a cylindrical tube element so as to extend over substantially a half of the tube element from one end thereof to a location in... | 02/21/1995 |
| 5323091 | Starting source for arc discharge lamps An ultraviolet starting aid is formed in a metal halide arc discharge lamp by forming a cavity in a press seal portion of an arc tube. An electrode is provided in the cavity which either extends external to the press seal, or the electrode may be a portio... | 06/21/1994 |
| 5278474 | Discharge tube A discharge tube having a pair of opposite electrode assemblies disposed in a discharge space defined by a peripheral wall and charged with gas, and an a.c. source connected at one end to one of the pair of electrode assemblies and at the other end to the... | 01/11/1994 |
| 5216325 | Spark gap device with insulated trigger electrode An improved solid state spark gap for use, for example, in firing munitions. The spark gap is formed by depositing a trigger electrode on a dielectric substrate, precisely covering the trigger electrode and an adjoining area with a dielectric layer, and f... | 06/01/1993 |
| 5173639 | Thermal switch assembly for electric lamps A thermal switch assembly for use in electric lamps includes a bimetal element and a resilient conductor such as a tungsten wire. The conductor is mounted at an angle in the range of about 30° to 45° with respect to the plane of movement of the bimetal ... | 12/22/1992 |
| 5146141 | Hollow-electrode switch A gas-discharge switch with a cold-cathode low-pressure gas discharge between the cathode and the anode has a discharge gap in a central discharge region of a discharge chamber. The maximum inside height of the discharge chamber determines the length of t... | 09/08/1992 |
| 5142194 | Spark gap component of particular spacing mounted within a shield In order to ensure that the ignition voltage does not depend on whether a sark gap component is shielded or unshielded, a ring-shaped control electrode that makes electrical contact with the electrode not at ground potential is mounted adjacent to or on t... | 08/25/1992 |
| 5097231 | Quasi-passive, non-radioactive receiver protector device A receiver protector device includes a sealed discharge chamber containing one or more pairs of spaced-apart, conical electrodes and an ionizable gas. A field emission array is mounted in the discharge chamber to provide a source of free electrons which a... | 03/17/1992 |
| 5001394 | Glow discharge lamp containing thermal switch for producing double hot spots on cathode A preheat-type fluorescent lamp, such as a negative glow discharge lamp, includes a cathode contained within an evelope and supported by a pair of lead-in wires. A thermal switch is located within the evelope shunting the cathode and electrically coupled ... | 03/19/1991 |
| 4899092 | Juxtaposed discharge tubes with opposed trigger electrodes A light emitting device wherein one of a plurality of juxtaposed discharge tubes which is to remain not emitting light is prevented from being caused to emit light by induction by an adjacent one of the discharge tubes which is to emit light, thereby enab... | 02/06/1990 |
| 4879490 | Gas discharge devices wherein electrons are injected into a high field region A gas discharge device includes means for injecting electrons into a high field region between an anode and a cathode structure located within a gas filled envelope. This causes ionisation within the region and triggers the device into conduction.... | 11/07/1989 |
| 4661747 | Efficient electrical conversion switching tube suitable for inductive loads Disclosed is an electrical driving and recovery system for a high frequency environment. The recovery system can be applied to drive present day direct-current or alternating-current loads for better efficiency. It has a low-voltage source coupled to a vi... | 04/28/1987 |
