Class / Patent application number | Description | Number of patent applications / Date published |
315248000 | Induction-type discharge device load | 34 |
20080231206 | Method and Ballast for Driving a High-Pressure Gas Discharge Lamp - Method of driving a high-pressure gas discharge lamp during its steady-state operation, wherein a steady-state current signal is sent through the lamp for maintaining a discharge arc in the lamp, comprising the step of comparing the lamp conductivity response to a current step in said current signal with reference parameters; and in response to said comparison at least one of the following steps: stopping the current supply to the lamp, generating a signal indicating the end-of-life status of the lamp, changing the steady-state current through the lamp, changing the steady-state waveform of the current signal through the lamp, and generating a signal indicating the lamp type, wherein said current step is obtained by sending a current pulse which is superimposed on said steady-state current signal through the lamp. | 09-25-2008 |
20090033240 | Electrodeless lamp and core having indented coil winding section for use with tubular lamp envelope - An electrodeless lamp assembly includes a tubular lamp envelope, at least one core having a closed-loop body disposed so as to surround a core mounting portion of the tubular lamp envelope. The core includes an indented coil winding section formed by an indentation formed in an inner side section of the closed-loop body adjacent to a centrally located opening. The electrodeless lamp assembly further includes an induction coil wounded around the indented coil winding section of the core. | 02-05-2009 |
20090146576 | METAL HALIDE LAMP INCLUDING A SOURCE OF AVAILABLE OXYGEN - A lamp includes a discharge vessel. Tungsten electrodes extend into the discharge vessel. An ionizable fill is sealed within the vessel. The fill includes a buffer gas, optionally free mercury, a halide component which includes a rare earth halide selected from the group consisting of lanthanum halides, praseodymium halides, neodymium halides, samarium halides, cerium halides, and combinations thereof. A source of available oxygen is present in the discharge vessel. The rare earth halide is present in an amount such that, during lamp operation, in combination with the source of available oxygen, it maintains a difference in vapor phase solubility for tungsten species between a wall of the discharge vessel and at least a portion of at least one of the electrodes. | 06-11-2009 |
20090167201 | LIGHT SOURCE AND METHODS FOR MICROSCOPY AND ENDOSCOPY - 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 shifter may be used to adjust the phase of the power between ignition and steady state operation. A sensor may detect a lamp operating condition that automatically triggers a shift in phase after the fill in the bulb is vaporized. In another example embodiment, a method for sequentially optimizing the drive power and phase shift applied to the lamp is disclosed that may reliably regulate the lamp current consumption to desired startup and operational levels despite variations in lamp environmental conditions. | 07-02-2009 |
20090284166 | 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 solid dielectric material. The source of RF power is configured to provide RF power and an RF feed configured to radiate the RF power from the RF source into the lamp body. The bulb is positioned proximate the lamp body and contains a fill that forms a plasma when the RF power is coupled to the fill from the lamp body. The at least one conductive element is configured to concentrate an electric field proximate the bulb. | 11-19-2009 |
20090322239 | Induction lamp lighting device and illumination apparatus - An induction lamp lighting device includes an induction coil arranged adjacent to an induction lamp; a direct current power supply circuit for outputting a direct current voltage; a high-frequency power supply circuit for converting the direct current voltage to an alternating current voltage and supplying the alternating current voltage to the induction coil; and a control circuit for controlling the direct current power supply circuit and the high-frequency power supply circuit. The control circuit performs a startup preparation operation by which to control the high-frequency power supply circuit so that, immediately after the alternating current voltage begins to be outputted from the high-frequency power supply circuit to the induction coil, the alternating current voltage is gradually increased to such a voltage value as not to generate arc discharge in the induction lamp and then kept at the voltage value for a specified time. | 12-31-2009 |
20090322240 | ELECTRODELESS LAMPS WITH EXTERNALLY-GROUNDED PROBES AND IMPROVED BULB ASSEMBLIES - An electrode-less plasma lamps, comprising generally of a bulb containing a gas-fill that is excited to produce light using radio-frequency (RF) energy. In specific embodiments, the use of grounded coupling-elements with integrated bulb assemblies simplifies manufacturability, improves resonant frequency control, and enables the use of solid, partially filled, and hollow lamp bodies. | 12-31-2009 |
20100026200 | ELECTRODELESS DISCHARGE LAMP AND LIGHTING APPARATUS USING THE SAME - In an electrodeless discharge lamp ( | 02-04-2010 |
20100039041 | Electrodeless discharge lamp, lighting fixture, and method for manufacturing electrodeless discharge lamp - The electrodeless discharge lamp of the present invention comprises: a bulb | 02-18-2010 |
20100079079 | Induction lamp and fixture - An induction lamp includes a bulb enclosing an induction coil and having a threaded base. The threaded base is electrically connected to the induction coil without an electrically intermediate frequency generator disposed between the threaded base and the induction coil. An induction lamp fixture includes a female threaded electrical bulb socket and a frequency generator convertor unit 50-60 Hz A/C electricity to a sufficient frequency to illuminate an induction bulb. A method for retrofitting a light fixture includes connecting an output of a frequency generator having an input receiving 50-60 Hz A/C electricity, to a female threaded electrical bulb socket. | 04-01-2010 |
20100123407 | LIGHT COLLECTION SYSTEM FOR AN ELECTRODELESS RF PLASMA LAMP - An electrodeless plasma lamp and a method of generating light are provided. The plasma lamp may comprise a power source to provide radio frequency (RF) power and a lamp body to receive the RF power. The lamp body may include a dielectric material having a relative permittivity greater than 2. A bulb is provided that contains a fill that forms a light emitting plasma when the RF power is coupled to the fill. Collection optics is provided to direct the light along an optical path to an aperture, wherein the optical path includes at least one reflective surface and at least two refractive surfaces. | 05-20-2010 |
20100123408 | LIGHT-EMITTING DEVICES HAVING EXCITED SULFUR MEDIUM BY INDUCTIVELY-COUPLED ELECTRONS - A light-emitting device having an excited sulfur medium by inductively-coupled electrons is provided. This device includes a substrate, an energy transmission coil disposed over the substrate, a transparent discharge cavity disposed over the energy transmission coil, having a substantially planar top and bottom surface, and a high-frequency oscillating power supply coupled to the energy transmission coil. While power up, the energy transmission coil induces an electromagnetic field within the transparent discharge cavity of the light-emitting device. In one embodiment, the transparent discharge cavity includes a sulfur-containing medium disposed within the transparent discharge cavity, and a buffer gas or a plurality of buffer gasses filling inner space of the transparent discharge cavity. | 05-20-2010 |
20100123409 | LIGHT-EMITTING DEVICES UTILIZING GASEOUS SULFUR COMPOUNDS - A light-emitting device utilizing gaseous sulfur compounds is provided. This device includes a first substrate with an energy transmission coil disposed thereover, a dielectric barrier layer embedding underneath the energy transmission coil, a sealant wall circling around the dielectric barrier layer, a second substrate disposed against the first substrate and supported by the sealant wall, and a high-frequency oscillating power supply connected to the energy transmission coil. Normally the second substrate is a transparent substrate. Between the first and second substrates thereby defines an inner chamber, wherein a gaseous reactant comprising an inert gas and a sulfur-containing gas is filled. While powering up, the energy transmission coil induces an electromagnetic field within the inner chamber between the two substrates as causing decomposing/regenerating process cycles of sulfur molecules to lighting up the light-emitting device. | 05-20-2010 |
20100156310 | LOW FREQUENCY ELECTRODELESS PLASMA LAMP - An electrodeless plasma lamp and a method of generating light are provided. The plasma lamp may comprise a power source to provide radio frequency (RF) power, and a bulb containing a fill that forms a plasma when the RF power is coupled to the fill. The plasma lamp further comprises a resonant structure having a quarter wave resonant mode. The resonant structure includes a lamp body comprising a dielectric material having a relative permittivity greater than 2, an inner conductor, and an outer conductor. The power source is configured to provide the RF power to the lamp body at about a resonant frequency for the resonant structure. | 06-24-2010 |
20100171436 | LOW FREQUENCY ELECTRODELESS PLASMA LAMP - In various exemplary embodiments, an electrodeless plasma lamp includes a bulb configured to be coupled to a source of radio frequency (RF) power. The bulb contains a fill that forms a plasma when the RF power is coupled to the fill. An electrically-conductive convex shield is positioned proximate to the bulb with a convex surface of the shield being distal to the bulb. A resonant structure having a quarter wave resonant mode includes a lamp body having a dielectric material having a relative permittivity greater than 2 with an inner conductor and an outer conductor. The source of RF power is configured to provide RF power to the lamp body at about a resonant frequency for the resonant structure. | 07-08-2010 |
20100244722 | COMPACT DELAY LINE STRUCTURES FOR FIELD APPLICATORS FOR OPERATION OF ELECTRODELESS GAS DISCHARGE LAMPS - In various embodiments, an electrodeless high intensity discharge lamp is provided, which may include a bulb containing a fill mixture for generating a light emission when excited by microwave energy; and at least two applicator arms for coupling the microwave energy to the fill mixture, the at least two applicator arms being separated by at least one delay line, the at least one delay line comprising a stripline structure. | 09-30-2010 |
20100253237 | OPTIMIZED APPLICATOR STRUCTURES FOR HOMOGENEOUS DISTRIBUTION OF ELECTRO-MAGNETIC FIELDS IN GAS DISCHARGE LAMPS - Various embodiments provide an electrodeless high intensity discharge lamp (EHID), including: a bulb containing a fill mixture for generating a light emission when excited by microwave energy; and at least two applicator arms for coupling the microwave energy to the fill mixture, the at least two applicator arms being separated by at least one delay line, the at least one delay line introducing a delay of λ/4, wherein λ is the wavelength of the microwave energy, wherein each of the at least two applicator aims are coupled to each other via an open loop structure. | 10-07-2010 |
20100270940 | LAMP, LIGHT-EMITTING DEVICE, AND PROJECTOR - A lamp includes a light emitter enclosing a material emitting light upon receiving irradiation of microwave, and a coil formed on an outer side of the light emitter. In the lamp, a position of the coil with respect to the light emitter is changed in response to a temperature. | 10-28-2010 |
20100295463 | Magnetic Energy Lamps with Built-in Magentic Energy Generator - A magnetic energy lamp, the fluorescent of which is excited by the electromagnetic induction generated by a built-in magnetic energy generator for lighting, comprises a lamp body ( | 11-25-2010 |
20110025221 | ULTRAVIOLET GENERATING DEVICE AND LIGHTING DEVICE USING THE SAME - Device generating high-luminance and highly-efficient ultraviolet rays by applying polyphase alternating current discharge plasma in a multi-poled magnetic field to a light source for generating ultraviolet rays and using a usual molecular gas other than mercury and rare gases. The inside of a flat container | 02-03-2011 |
20110037403 | MODULATED LIGHT SOURCE SYSTEMS AND METHODS. - An electrodeless plasma lamp and method of generating light is described. The lamp may comprise a lamp body comprising a dielectric material having a relative permittivity greater than 2. A lamp drive circuit is coupled to the lamp body and configured to provide radio frequency (RF) power to the lamp body. A bulb is positioned adjacent to the lamp body, the bulb containing a fill that forms a plasma when the RF power is coupled to the fill from the lamp body. The lamp drive circuit includes a control circuit to control the RF power to vary a temperature of the fill to emit light at adjustable output intensities. The control circuit may be configured to modulate a frequency of the RF power. In an example embodiment, the control circuit is configured to modulate the frequency in the range of 10 Hz to 10 KHz. | 02-17-2011 |
20110037404 | DISCHARGE LAMP USING SPREAD SPECTRUM - An electrodeless plasma lamp and a method of generating light are described. The lamp may comprise a lamp body including a dielectric material having a relative permittivity greater than 2. A lamp drive circuit is coupled to the lamp body and configured to provide radio frequency (RF) power to the lamp body. A bulb containing a fill is positioned proximate the lamp body. The fill forms a plasma when the RF power is coupled to the fill from the lamp body. A lamp drive circuit including modulation control circuit is provided to control modulation of a frequency of the RF power across a frequency band. The circuit may be configured to provide RF power across a frequency band around a resonant frequency for the lamp body to reduce peak amplitude and electro-magnetic interference while maintaining average power to the plasma. | 02-17-2011 |
20110043123 | ELECTRODELESS PLASMA LAMP AND FILL - Electrodeless plasma lamp and fill is described. Power may be over coupled to the lamp during startup and a significant percentage of the power is reflected. In some examples, 40-80% of the power may be initially reflected and less than 100 watts of forward power may be provided to the lamp. A high pressure fill is used to increase resistance and coupling of power during startup. In one example, a fill of noble gas, Mercury and metal halide is used and the high pressure decreases the warm up time required to vaporize the Mercury and metal halide. In some embodiments, the pressure may be between 200 Torr to 3000 Torr. A combination of metal halides may be used to provide desired characteristics. For example, Aluminum Halide, Indium Halide and/or Thallium Halide may be combined with one or more metal halides having a metal from the Lanthanide series. | 02-24-2011 |
20110148316 | PLASMA LAMP HAVING TUNABLE FREQUENCY DIELECTRIC WAVEGUIDE WITH STABILIZED PERMITTIVITY - 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 solid dielectric material. The source of RF power is configured to provide RF power and an RF feed configured to radiate the RF power from the RF source into the lamp body. One or more tuning mechanisms allow tuning of the lamp body to a given resonant frequency. The bulb is positioned proximate the lamp body and contains a fill that forms a plasma when the RF power is coupled to the fill from the lamp body. The at least one conductive element is configured to concentrate an electric field proximate the bulb. | 06-23-2011 |
20110204808 | METHOD AND SYSTEM FOR REPLACING A PLASMA LAMP FROM A RESONATOR ASSEMBLY - A plasma lamp. The lamp includes a housing having a spatial volume defined within the housing. In a specific embodiment, the spatial volume has an inner region and an outer region. The lamp also has a support region coupled to the inner region of the spatial volume and a support body having an outer surface region slidably inserted and disposed within or partially disposed the support region. In a preferred embodiment, the support body has a support length, a support first end, and a support second end. The plasma lamp has a gas-filled vessel coupled to the support first end of the support body. In a preferred embodiment, the gas filled vessel has a transparent or translucent body, an inner surface and an outer surface, a cavity formed within the inner surface. In a preferred embodiment, the cavity is sealed and includes a fill material, which is capable of discharge. The lamp has an rf source operably coupled to at least the first end of the gas-filled vessel. In a specific embodiment, the rf source is configured to cause a discharge of one or more gases in the gas filled vessel. | 08-25-2011 |
20110204809 | LIGHT SOURCE DEVICE AND PROJECTION TYPE DISPLAY APPARATUS - A light source device includes: a microwave power source which generates microwaves; a central conductor which radiates the microwaves; and a light emitter which emits light by receiving the microwaves, wherein the central conductor and the light emitter are spaced from each other. | 08-25-2011 |
20110285306 | EXTERNAL RESONATOR ELECTRODE-LESS PLASMA LAMP AND METHOD OF EXCITING WITH RADIO-FREQUENCY ENERGY - Described is an electrode-less plasma lamp comprising a gas-fill vessel, a gas-fill contained within the gas-fill vessel, an RF electromagnetic radiation source, an RF electromagnetic resonator, an output probe that couples RF energy from the RF electromagnetic resonator to the gas-fill vessel, an input probe that couples RF energy from the RF electromagnetic radiation source to the resonator, and a grounding strap that holds a metal veneer surrounding the resonator and a portion of the gas-fill vessel at RF ground. Also described are many variations of the electrode-less plasma lamp, non-limiting examples of which include embodiments that employ other probes in a Dielectric Resonant Oscillator to drive the lamp, a lamp employing more than one resonator per gas-fill vessel, and many methods of improving light-harvesting, including raising the gas-fill vessel away from the resonator via a coaxial transmission line, and collecting light with an optical reflector. | 11-24-2011 |
20110309764 | GENERATOR OF EXCESS ELECTROMAGNETIC ENERGY - What is claimed is the generator of the excess electromagnetic energy (“generator”) for the illuminating gas discharge (fluorescent) lamps for the advertising devices, the interior spaces, the open spaces, etc. The basis of the generator is the Kriuk antenna (Ukrainian Patent No. 79626), with the Earth's electromagnetic field being excited in the limited (local) area around the said antenna and with the gas molecules in the gas discharge lamps being ionized until the light is generated. Owing to the fact that the electromagnetic field of the Kriuk antenna is limited spatially and that the Earth's electromagnetic field is relatively unlimited spatially, the excess electromagnetic energy is produced; that is to say that the coefficient of the energy conversion is greater than unity. It has been established by the experimental means that this coefficient is no less than for times unity (>400%), that is no less than the coefficient of the energy conversion of the known heat pumps (≈400%). The subjective estimation of the magnitude of the luminous flux from the gas discharge lamps with the objective monitoring of the magnitude of the energy consumption demonstrates that the said coefficient results in the magnitude of the order of twenty times unity (≈2000%). | 12-22-2011 |
20120086352 | EXTERNAL RESONATOR ELECTRODE-LESS PLASMA LAMP AND METHOD OF EXCITING WITH RADIO-FREQUENCY ENERGY - Described is an electrode-less plasma lamp comprising a gas-fill vessel, a gas-fill contained within the gas-fill vessel, an RF electromagnetic radiation source, an RF electromagnetic resonator, an output probe that couples RF energy from the RF electromagnetic resonator to the gas-fill vessel, an input probe that couples RF energy from the RF electromagnetic radiation source to the resonator, and a grounding strap that holds a metal veneer surrounding the resonator and a portion of the gas-fill vessel at RF ground. Also described are many variations of the electrode-less plasma lamp; non-limiting examples of which include embodiments that employ other probes in a Dielectric Resonant Oscillator to drive the lamp, and many methods of improving light-harvesting, including raising the gas-fill vessel away from the resonator via a coaxial type transmission line, and collecting light with an optical reflector. | 04-12-2012 |
20120249010 | ELECTRODELESS PLASMA LAMP WITH VARIABLE VOLTAGE POWER SUPPLY - The present disclosure relates to apparatuses and methods to control an electrodeless plasma light source. In various embodiments, an apparatus is provided that includes an electrodeless plasma lamp with a lamp driver circuit. The lamp driver circuit may include a voltage-controlled oscillator to provide radio frequency power to the electrodeless plasma lamp. A radio frequency power detector is coupled to an output of the voltage-controlled oscillator to detect a level of reflected power from the electrodeless plasma lamp. A microprocessor is configured to receive signals from the radio frequency power detector and control a frequency of the voltage-controlled oscillator to minimize the reflected power from the electrodeless plasma lamp. | 10-04-2012 |
20120274229 | MULTIPLE STRIKE BALLAST FOR ELECTRODELESS LAMP - A multi-strike ballast to ignite an electrodless lamp is disclosed, and includes an inverter circuit, an output voltage detection circuit (OVDC), and an inverter shutdown circuit. The inverter circuit, upon activation, sends an ignition pulse to the electrodeless lamp. The inverter circuit shut downs upon receiving a deactivation signal, and activates upon receiving an activation signal, triggering another ignition pulse. The OVDC detects an output voltage across the lamp. The inverter shutdown circuit includes a multi-strike diac and receives the detected output voltage. The multi-strike diac breaks upon the output voltage reaching a predetermined level. In response, a deactivation signal is sent to the inverter circuit. The multi-strike diac turns off upon the output voltage falling below the predetermined level. In response, an activation signal is sent to the inverter circuit, triggering a further ignition pulse. The process repeats, providing multiple ignition pulses to the lamp. | 11-01-2012 |
20130009563 | RESONANCE CIRCUITRY FOR A FIELD EMISSION LIGHTING ARRANGEMENT - A field emission lighting arrangement of at least one embodiment includes a field emission light source including an anode and a cathode and having an inherent predetermined capacitance; an inductor having a predetermined inductance and connected to at least one of the anode and the cathode of the field emission light source; and a power supply connected to the field emission light source and the inductor and configured to provide a drive signal for powering the field emission light source, the drive signal including a first frequency component having a first frequency selected to be within a frequency range, based on the predetermined capacitance and the predetermined inductance, corresponding to the half power width at resonance of the field emission lighting arrangement. At least one embodiment results in lower power consumption as well as an increase in light output of the field emission lighting arrangement. | 01-10-2013 |
20140145637 | INDUCTION RF FLUORESCENT LIGHT BULB WITH SYNCHRONIZED BURST-MODE DIMMING - A dimmable induction RF fluorescent lamp comprising a burst-mode dimming facility that periodically interrupts the high frequency voltage and current to a power coupler in order to reduce the power being delivered to the power coupler, where the periodic interruptions are synchronized with the operating frequency of the electronic ballast. | 05-29-2014 |
20150327445 | PLASMA GROWTH LAMP FOR HORTICULTURE - A lamp apparatus for horticulture lighting is disclosed. The lamp apparatus is a high intensity electrodeless plasma lamp with an optimized spectrum for horticulture applications. The spectrum is provided from single light source and consists of peaks in the blue range of the spectrum, 400 nm to 470 nm, needed for early growth cycle of the plant as well as peaks in the red range of the spectrum, 600 nm to 700 nm, desirable for flowering cycle while providing lower amount of light in the green spectral region which is typically reflected by the plants. The ratio of the red spectrum to blue spectrum provided by the lamp can be varied by adjusting the RF power to the lamp. | 11-19-2015 |