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| Number | Title | Issue Date |
| 8080946 | Flat discharge lamp and production method thereof The present invention provides a flat discharge lamp and the production method thereof. The flat discharge lamp comprises an upper substrate, a lower substrate and a discharge chamber disposed between the upper substrate and the lower substrate, wherein the discharg... | 12/20/2011 |
| 7015644 | Discharge lamp comprising a stabilized discharge vessel plate The invention relates to a new design of discharge vessel for a discharge lamp, in which dielectrically impeded discharges are to be generated. In this case, a discharge vessel plate 1, 9 is, as it were, of two-fold design, specifically as a first discharge v... | 03/21/2006 |
| 6636004 | Dimmable discharge lamp for dielectrically impeded discharges The discharge spacings in discharge lamps for dielectrically impeded discharges are shortened below 3 mm, as a result of which dead times of pulsed active-power injecting can be increased so strongly, for example beyond 50 ms, that the dimming properties ... | 10/21/2003 |
| 6545427 | Discharge lamp having an improved temperature homogeneity A discharge lamp for dielectrically impeded discharges, having a discharge vessel filled with a discharge medium and having discharge electrodes which are at least partly separated from the discharge medium by a dielectric layer, wherein the discharge ves... | 04/08/2003 |
| 6445137 | Dielectric barrier discharge lamp apparatus Dielectric-barrier discharge lamp light source equipment having a plurality of dielectric-barrier discharge lamps (B), each of which has a discharge plasma space (G) filled with a discharge gas in which a dielectric-barrier discharge will produce excimer ... | 09/03/2002 |
| 6407513 | Gas-discharge lamp with controllable length of illumination An elongated gas-discharge lamp having a controllable illuminated length may be formed with a dielectric barrier discharge, in which the position of a discharge voltage is dependent, for example, on a discharge gap 6' which varies over the length of the l... | 06/18/2002 |
| 6310442 | Discharge lamp with dielectrically impeded electrodes A discharge lamp (1) including a tubular discharge vessel (2), filled with inert gas and, optionally, a fluorescent layer, having at least three elongated electrodes (3, 4, 5) arranged parallel to the longitudinal axis of the tubular discharge vessel (2).... | 10/30/2001 |
| 6297599 | Dielectric barrier discharge lamp with a segmented electrode Lighting apparatus includes a dielectric barrier discharge lamp having a discharge vessel enclosing a discharge space having a filling, first and second main electrodes, a dielectric sheet between the first main electrode and the discharge space, and a fi... | 10/02/2001 |
| 6259214 | Method for operating a discharge lamp An operating method, in particular a dimming method for a discharge lamp. In order to set the maximum brightness, two outer electrodes (5,6), for example, are used to generate in the discharge lamp a dielectrically impeded discharge which, through the for... | 07/10/2001 |
| 6225758 | Method for producing impulse voltage sequences to operate discharge lamps and circuit pertaining thereto A method for producing pulsed-voltage sequences for the operation of discharge lamps (8) by means of a pulsed discharge which is impeded dielectrically provides for some of the required pulse peak values to be replaced by an offset DC voltage component (U... | 05/01/2001 |
| 5994849 | Method for operating a lighting system and suitable lighting system therefor The invention pertains to a method for operating a lighting system with an ncoherently-emitting radiation source, in particular a discharge lamp (14) that emits UV, IR or visible-range radiation, by means of dielectrically inhibited discharge, and to a lig... | 11/30/1999 |
| 5965988 | Discharge lamp with galvanic and dielectric electrodes and method A discharge lamp may be formed with both galvanic and dielectric electrod The relative discharges due to the currents between the differing electrodes may be adjusted to effect the optical spectrum of the radiation emitted by the lamp.... | 10/12/1999 |
| 5831394 | Circuit arrangement for the production of voltage pulse sequences, in particular for the operation of dielectrically impeded discharges An electrical circuit arrangement for the production of voltage pulse sequences, in particular for the operation of dielectrically impeded discharges, has a charging circuit, with a charging capacitor (C2), fed with an input voltage (UE), a dis... | 11/03/1998 |
| 5783910 | Flat panel display in which low-voltage row and column address signals control a much higher pixel activation voltage This invention is directed to an improvement of a field emission display architecture in which low-voltage row and column address signals control a much higher pixel activation voltage. Instead of using a pair of series-coupled transistors the emitter nod... | 07/21/1998 |
| 5616991 | Flat panel display in which low-voltage row and column address signals control a much higher pixel activation voltage This invention is directed to an improvement of a field emission display architecture in which low-voltage row and column address signals control a much higher pixel activation voltage. Instead of using a pair of series-coupled transistors in the emitter ... | 04/01/1997 |
| 5604410 | Method to operate an incoherently emitting radiation source having at least one dielectrically impeded electrode A method to operate an incoherently emitting radiation source, in particular a discharge lamp, which transmits UV, IR or VIS radiation. The discharge is generated by means of a train of voltage pulses, interrupted by idle times, inside a discharge vessel;... | 02/18/1997 |
| 5416384 | Back-up lighting system This is an emergency lighting system that provides an emergency driving voltage to drive at least one lamp when the AC power input to the lamp is detected as absent. A rechargeable battery pack and recharging circuit are contained in a first modular housi... | 05/16/1995 |
| 5177407 | Glow discharge lamp having dual anodes and circuit for operating same An AC operated glow lamp having a cathode electrode and a pair of anode electrodes driven from a capacitively ballasted autotransformer that provides phase inversion so as to enable a full wave rectification of the discharge current thus operating in a DC... | 01/05/1993 |
| 5059864 | Negative glow lamp A negative glow discharge lamp, which includes a light transmitting envelope containing a noble gas film material and a pair of electrodes disposed in the envelope. Ballast capacitors are placed within the base of the lamp and preferably within a cavity f... | 10/22/1991 |
| 5001399 | Power supply for vacuum fluorescent displays A power supply for vacuum fluorescent displays has a source of a relatively high frequency signal which is provided to a power driver amplifier which is also supplied with a desired supply voltage. The output of the driver amplifier is a square-wave signa... | 03/19/1991 |
| 4999543 | Brilliance control circuit for controlling the brilliance of fluorescent display tubes A brilliance control circuit capable of automatically controlling the brilliance of fluorescent display tubes, comprising a lighting voltage regulating circuit incorporating a circuit element which decreases the lighting voltage when the current flowing t... | 03/12/1991 |
| 4751435 | Dual cathode beam mode fluorescent lamp with capacitive ballast An improvement in dual beam mode fluorescent lamps in which a capacitive ballast is provided integral with the lamp structure in the form of a cylindrical laminate of metal and insulator coaxial to the lamp's major axis.... | 06/14/1988 |
| 4739227 | Fluorescent lamp dimming over large light output range A fluorescent lamp has an envelope tube forming a gas-tight enclosure about a pair of externally-energizable filaments which generate a plasma discharge for conversion to visible light; a keep-alive electrode is located adjacent to at least one filament. ... | 04/19/1988 |
| 4691145 | Drive circuit for fluorescent display tube A drive circuit for a fluorescent display tube used for displaying numerals, characters, and so on, which circuit includes a plurality of drivers for switching the potential of segments and/or grids of the fluorescent display tube. Part or all of the driv... | 09/01/1987 |
| 4631452 | Apparatus and method for generating a plurality of electric discharges An electric discharge apparatus, for example a gas laser or discharge lamp, includes first and second electrodes defining a first discharge path and third and fourth electrodes defining a second discharge path alongside the first. A respective impedance i... | 12/23/1986 |
| 4587462 | Fluorescent light source with parallel DC discharges A fluorescent light source and power supply adapted therefore in which a set of three D.C. mercury discharge paths are provided adjacent each other in a single tubular envelope. A cathode is provided at the base end of each path and a single anode at the ... | 05/06/1986 |
| 4518897 | Twin anode beam mode fluorescent lamp The lamp shown herein is a beam mode fluorescent lamp for general lighting applications. The lamp comprises a light transmitting envelope, having a phosphor coating on its inner surface, enclosing a thermionic cathode for emitting electrons, a pair of ano... | 05/21/1985 |
| 4516057 | Multi-electrode array for a beam mode fluorescent lamp The lamp shown herein is a beam mode fluorescent lamp for general lighting applications. The lamp comprises a light transmitting envelope, having a phosphor coating in its inner surface, the envelope encloses a thermionic cathode having a number of segmen... | 05/07/1985 |
| 4494046 | Single cathode beam mode fluorescent lamp for DC use The lamp shown herein is a beam mode fluorescent lamp for general lighting applications. The lamp comprises a light transmitting envelope, having a phosphor coating on its inner surface, enclosing a single electrode including a thermionic cathode for emit... | 01/15/1985 |
| 4438373 | Low pressure metal vapor discharge lamp A low pressure metal vapor discharge lamp has a double-tube type discharge vessel consisting of a fully closed outer glass bulb and an inner glass tube substantially coaxially disposed in the outer glass bulb, the inner glass tube being closed at its fixe... | 03/20/1984 |
| 4335331 | Low pressure metal vapor discharge lamp A low pressure metal vapor discharge lamp has a double-tube type discharge vessel consisting of a fully closed outer glass bulb and an inner glass tube substantially coaxially disposed in the outer glass bulb, the inner glass tube being closed at its fixe... | 06/15/1982 |
| 4128788 | Method and apparatus for operating a gaseous discharge lamp with improved efficiency The light producing efficiency of gas filled electrical discharge tubes is improved by applying a high voltage narrow pulsed ionizing potential across the electrodes of the tube and eliminating, through removal and/or neutralization, gas ions between the ... | 12/05/1978 |
| 4051407 | Arrangement including a gas and/or vapor discharge lamp A device for operating a low-pressure sodium vapor discharge lamp without a ballast. The electrode voltage drop near a main electrode of the sodium lamp is influenced by a change in the pre-heating current of that electrode and/or a change in the effectiv... | 09/27/1977 |
| 4009416 | Method for operating a gaseous discharge lamp with improved efficiency A method for improving the light producing efficiency of gas filled electrical discharge tubes wherein a high voltage narrow pulsed ionizing potential is applied across the electrodes of the tube along with a relatively low bias potential.... | 02/22/1977 |
| 3952228 | Electron-bombardment ion source including alternating potential means for cyclically varying the focussing of ion beamlets An ion source includes apparatus that defines a region in which a supply of ions are produced. An apertured grid is disposed at one end of the region. A potential difference is impressed between the grid and the region so as to accelerate ions out of the ... | 04/20/1976 |
| 3943465 | Frequency-deviation method and apparatus A carrier wave having a sub-audible frequency is modulated in amplitude by a modulating wave of a tone signal having an audible frequency, which produces a resultant modulated output signal having first and second side band components respectively deviate... | 03/09/1976 |
