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| Number | Title | Issue Date |
| 8169152 | Plasma lamp with field-concentrating antenna An electrodeless plasma lamp is described comprising a lamp body including a solid dielectric material. The lamp includes a bulb received at least partially within an opening in the solid dielectric material and a radio frequency (RF) feed configured to provide powe... | 05/01/2012 |
| 8154216 | External resonator/cavity electrode-less plasma lamp and method of exciting with radio-frequency energy Described is a plasma electrode-less lamp. The device comprises an electromagnetic resonator and an electromagnetic radiation source conductively connected with the electromagnetic resonator. The device further comprises a pair of field probes, the field probes cond... | 04/10/2012 |
| 8143801 | Electrodeless lamps and methods An electrodeless plasma lamp and method of generating light are described. The lamp may comprise a lamp body, a source of radio frequency (RF) power and a bulb. The lamp body may comprise a solid dielectric material and at least one conductive element within the sol... | 03/27/2012 |
| 8084955 | Systems and methods for improved startup and control of electrodeless plasma lamp using current feedback In one example embodiment, a drive probe is coupled to the lamp body to provide the primary power for ignition and steady state operation of the lamp. Feedback may be used to adjust frequency in response to changing conditions of the lamp during startup. A phase shi... | 12/27/2011 |
| 8072155 | Electrodeless discharge lamp device and lighting fixture using the same An electrodeless discharge lamp device comprises an induction coil, a pair of cores 1a, 1b, and thermal conductor 2. The cores 1a, 1b are configured to generate a high-frequency electromagnetic field for... | 12/06/2011 |
| 7956549 | Power conversion structure A power conversion structure includes a power factor correction circuit which has an energy storage coil, a switch and a voltage boosting control unit. The voltage boosting control unit drives the switch to set OFF and ON of the switch to change the period of curren... | 06/07/2011 |
| 7902766 | Plasma lighting system A plasma lighting system comprises a resonator, a bulb received in the resonator and containing a discharge material therein for emitting light in accordance with the discharge material is exited as a plasma state, and a dielectric mirror disposed at one side of the... | 03/08/2011 |
| 7880402 | Plasma lamp with field-concentrating antenna An electrodeless plasma lamp is described comprising a lamp body including a solid dielectric material. The lamp includes a bulb received at least partially within an opening in the solid dielectric material and a radio frequency (RF) feed configured to provide powe... | 02/01/2011 |
| 7772783 | Dimmable electronic ballast for electrodeless discharge lamp and luminaire A dimmable electronic ballast for an electrodeless discharge lamp comprises an inverter circuit, a resonance circuit, an induction coil and a start circuit. The start circuit has a variable time constant. The start circuit sweeps a drive frequency of the inverter ci... | 08/10/2010 |
| 7638951 | Plasma lamp with stable feedback amplification and method therefor A plasma lamp with a positive-loop feedback topology, having a resonating waveguide body and at least one amplifier critically coupled to the body which is stable under all operating conditions both before a plasma is formed and after the plasma reaches steady state... | 12/29/2009 |
| 7446484 | Middle output electrodeless lighting system A middle output electrodeless lighting system comprising: a resonator having a certain inner space and adapted to form a resonance mode by shielding a discharge of microwaves applied therein to the exterior and to allow a discharge of light generated to the exterior... | 11/04/2008 |
| 7439682 | Current driving circuit for inductive loads A circuit for driving the current for inductive loads such as a electron beam deflection coil for an x-ray generator system. The circuit includes two selectable voltage levels which are provided by a high level voltage source and a low level voltage source or, alter... | 10/21/2008 |
| 7427839 | Inductively powered apparatus An inductive power supply system for providing power to one or more inductively powered devices. The system includes a mechanism for varying the physical distance or the respective orientation between the primary coil and secondary coil to control the amount of powe... | 09/23/2008 |
| 7397173 | Lighting apparatus using microwave energy A lighting apparatus using microwave energy comprises, a magnetron disposed inside a casing, for generating microwave energy; a waveguide for guiding microwave energy; a resonator providing a resonant region in which the microwave energy is resonated; a bulb dispose... | 07/08/2008 |
| 7391158 | Plasma lamp with dielectric waveguide A dielectric waveguide integrated plasma lamp (DWIPL) with a body consisting essentially of at least one dielectric material having a dielectric constant greater than approximately 2, and having a shape and dimensions such that the body resonates in at least one res... | 06/24/2008 |
| 7372209 | Microwave energized plasma lamp with dielectric waveguide A plasma lamp including a waveguide body including at least one dielectric material with a dielectric constant greater than approximately 2. The body is coupled to a microwave source which causes the body to resonate in at least one resonant mode. At least on... | 05/13/2008 |
| 7365498 | Electrodeless discharge lamp lighting device and luminaire Electrodeless discharge lamp lighting device. Start circuit 19 sweeps operating frequency of resonance circuit 16 from start frequency to end frequency of resonance frequency side through drive circuit 18 and DC/AC conversion circuit 15, ... | 04/29/2008 |
| 7365887 | Image sensor unit An image sensor unit has an electric discharge light emitting lamp for producing an illumination beam. The lamp includes a first electrode and a second electrode facing each other and defining a discharge space between them along the longitudinal axis of the lamp. A... | 04/29/2008 |
| 7362594 | Adaptive resonant switching power system A resonant switching power system operates with two resonant frequencies. A first frequency depends on the secondary leakage inductance of an output transformer and capacitor. The first frequency varies with changes in the load because load changes alter the leakage... | 04/22/2008 |
| 7362056 | Plasma lamp with dielectric waveguide A dielectric waveguide integrated plasma lamp (DWIPL) with a body consisting essentially of at least one dielectric material having a dielectric constant greater than approximately 2, and having a shape and dimensions such that the body resonates in at least one res... | 04/22/2008 |
| 7362055 | Plasma lamp with dielectric waveguide A dielectric waveguide integrated plasma lamp is disclosed for powering a small and bright bulb with a diameter of a few millimeters. The lamp is contained within a high dielectric constant material which guides the microwaves to the bulb, provides heat isolation to... | 04/22/2008 |
| 7362054 | Plasma lamp with dielectric waveguide A dielectric waveguide integrated plasma lamp is disclosed for powering a small and bright bulb with a diameter of a few millimeters. The lamp is contained within a high dielectric constant material which guides the microwaves to the bulb, provides heat isolation to... | 04/22/2008 |
| 7362303 | Device and method of driving light source in display devices A device for driving a light source in an image display device includes input terminals to receive a horizontal synchronization signal and a control signal, an oscillator to generate a reference signal having a frequency, a controller to modulate the reference signa... | 04/22/2008 |
| 7358678 | Plasma lamp with dielectric waveguide A dielectric waveguide integrated plasma lamp is disclosed for powering a small and bright bulb with a diameter of a few millimeters. The lamp is contained within a high dielectric constant material which guides the microwaves to the bulb, provides heat isolation to... | 04/15/2008 |
| 7352134 | Lamp containing fixed reverse phase switching power supply with time-based phase pulse triggering control A lamp contains a lamp voltage conversion circuit within the lamp and connected to a lamp terminal. The voltage conversion circuit includes a phase-control clipping circuit that clips a load voltage and provides an RMS load voltage to the lamp. The phase-control cli... | 04/01/2008 |
| 7348732 | Plasma lamp with dielectric waveguide A dielectric waveguide integrated plasma lamp (DWIPL) with a body consisting essentially of at least one dielectric material having a dielectric constant greater than approximately 2, and having a shape and dimensions such that the body resonates in at least one res... | 03/25/2008 |
| 7339188 | Polycrystalline silicon film containing Ni The present invention is related to a polycrystalline silicon film containing Ni which is formed by crystallizing an amorphous silicon layer containing nickel. The present invention includes a polycrystalline silicon film wherein the polycrystalline film contains Ni... | 03/04/2008 |
| 7339329 | Dimmable ballast for an electrodeless discharge lamp A ballast for an electrodeless discharge lamp includes a high frequency power supply that supplies a high frequency electric power to an induction coil for operating the lamp. A dimmer controller generates a control signal in response to a dimmer command designating... | 03/04/2008 |
| 7339321 | Discharge-lamp ballast in particular for a vehicle headlight Ballast comprising input terminals receiving a DC voltage coming from a supply source on the vehicle, a chopping supply circuit functioning at a predetermined chopping frequency in order to supply as an output a voltage supplying the discharge lamp, and a filtering ... | 03/04/2008 |
| 7339327 | Resonant circuit for halogen lighting An apparatus and method for driving a halogen lamp. A driving circuit is provided that is operable near a series resonance frequency. The driving circuit is coupled to the lamp in a series configuration. During startup, the circuit is driven above resonance. After t... | 03/04/2008 |
| 7332872 | External electronic control type electrodeless lamp An external electronic control type electrodeless lamp includes a lighting device. The lighting device includes a body having at least a first conductive plate and a second conductive plate. Each conductive plate is electrically connected to an electronic control sy... | 02/19/2008 |
| 7332873 | Electrical circuit for fluorescent lamps A portable fluorescent task lamp comprising at least two fluorescent bulbs of any wattage up to forty Watts and of either a non-starting type or a self-starting type; and an electronic ballast circuit for use therewith including an SPST function switch disposed in s... | 02/19/2008 |
| 7326872 | Multi-frequency dynamic dummy load and method for testing plasma reactor multi-frequency impedance match networks In one implementation, a method is provided for testing a plasma reactor multi-frequency matching network comprised of multiple matching networks, each of the multiple matching networks having an associated RF power source and being tunable within a tunespace. The m... | 02/05/2008 |
| 7327100 | Discharge lamp lighting apparatus A discharge lamp lighting apparatus for lighting a discharge lamp having two electrodes includes a first drive circuit, a second drive circuit, and a control circuit. The first drive circuit is connectable to one of the two electrodes to supply a first alternating c... | 02/05/2008 |
| 7321204 | Bulb structure and manufacturing method of electrodeless lighting system A bulb structure of an electrodeless lighting system comprises: a bulb body having an interior space receiving a luminous material emitting light by microwave energy; a bulb support portion integrally extending from one side of the bulb body to communicate with the ... | 01/22/2008 |
| 7312584 | Plasma-generation power-supply device A plasma-generation power-supply device includes a transformer connected to an alternating-current power-supply, a rectifier connected to the transformer, an inverter connected to the rectifier, a reactor inserted in series in a power line of an ozonizer that is sup... | 12/25/2007 |
| 7312578 | Plasma lighting bulb with metal provided in grooves formed on surface thereof A plasma lighting bulb is disclosed. The plasma lighting bulb includes a bulb emitting light, being formed of a transparent material, and having a plurality of grooves having a predetermined depth formed on a surface of the bulb, and a metal formed in the grooves, w... | 12/25/2007 |
| 7309732 | UV and UV/moisture dual curable compositions with improved cure through volume The present invention is directed to silicone formulations which are capable of being rapidly cured to tough elastomeric materials through exposure to UV radiation, and optionally through exposure to moisture as well. The cured products demonstrate high resistance t... | 12/18/2007 |
| 7307375 | Inductively-driven plasma light source An apparatus for producing light includes a chamber that has a plasma discharge region and that contains an ionizable medium. The apparatus also includes a magnetic core that surrounds a portion of the plasma discharge region. The apparatus also includes a pulse pow... | 12/11/2007 |
| 7302830 | Flow detectors having mechanical oscillators, and use thereof in flow characterization systems An improved system, device and method for characterizing a fluid sample that includes injecting a fluid sample into a mobile phase of a flow characterization system, and detecting a property of the fluid sample or of a component thereof with a flow detector comprisi... | 12/04/2007 |
