| Patent application number | Description | Published |
|---|
| 20090009087 | HIGH BRIGHTNESS PLASMA LAMP - A plasma lamp for an electrodeless plasma lamp having a waveguide body. The non-radiative thermal losses from the bulb are controlled to prevent the bulb from melting while providing a high level of radiation from the bulb. The thermal conductivity of the waveguide, configuration of the heat sink and size and placement of the bulb may be selected to provide a brightness of more than 80 lumens per watt and a total brightness of more than 12,000 lumens at a power level of 150 watts. | 01-08-2009 |
| 20090146543 | PLASMA LAMP WITH DIELECTRIC WAVEGUIDE INTEGRATED WITH TRANSPARENT BULB - A dielectric waveguide integrated plasma lamp (DWIPL) with a body comprising 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 resonant mode when microwave energy of an appropriate frequency is coupled into the body. A dielectric bulb within a lamp chamber in the body contains a fill which when receiving energy from the resonating body forms a light-emitting plasma. The bulb is transparent to visible light and infrared radiation emitted by the plasma. Radiative energy lost from the plasma is recycled by reflecting the radiation from thin-film, multi-layer coatings on bulb exterior surfaces and/or lamp chamber surfaces back into the bulb. The lamp further includes two- or three-microwave probe configurations minimizing power reflected from the body back to the microwave source when the source operates: (a) at a frequency such that the body resonates in a single mode; or (b) at one frequency such that the body resonates in a relatively higher mode before a plasma is formed, and at another frequency such that the body resonates in a relatively lower order mode after the plasma reaches steady state. | 06-11-2009 |
| 20090167183 | 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 the drive circuit, contains the microwaves, provides structural stability and ease of manufacturing and allows efficient energy coupling to the bulb when used as a dielectric resonant oscillator. | 07-02-2009 |
| 20090243488 | MICROWAVE ENERGIZED PLASMA LAMP WITH DIELECTRIC WAVEGUIDE - A plasma lamp including a waveguide body comprising at least one dielectric material. The body is coupled to a microwave power source which causes the body to resonate in at least one resonant mode. A lamp chamber integrated with the body contains a bulb with a fill forming a light-emitting plasma when the chamber receives power from the resonating body. A bulb either is self-enclosed or an envelope sealed by a window or lens covering the chamber aperture. Embodiments disclosed include lamps having a drive probe and a feedback probe, and lamps having a drive probe, feedback probe and start probe, which minimize power reflected from the body back to the source. | 10-01-2009 |
| 20090295509 | APPARATUS AND METHOD FOR REACTION OF MATERIALS USING ELECTROMAGNETIC RESONATORS - An electromagnetic resonator may be used for efficient heating and/or reaction of materials. More particularly, resonator-based systems may be used for efficient pyrolysis, gasification, incineration (or other similar processes) of feedstock including but not limited to biomass, petroleum, industrial chemicals and waste materials using RF resonators and adaptively tunable RF resonators. A processing architecture based on the use of resonators is presented. | 12-03-2009 |
| 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 |
| 20100134008 | ELECTRODELESS LAMPS WITH GROUNDED COUPLING ELEMENTS AND IMPROVED BULB ASSEMBLIES - An electrode-less plasma lamp, comprising generally of a bulb containing a gas-fill and light emitter(s) that is excited to produce light using radio-frequency (RF) energy. The present lamp includes compact air resonators/waveguides that use grounded coupling-elements with integrated bulb assemblies to reduce the size of the resonator and improve the performance of the lamp as well as reduce cost and simplify manufacturability. | 06-03-2010 |
| 20100134013 | METHOD AND SYSTEM FOR ADJUSTING THE FREQUENCY OF A RESONATOR ASSEMBLY FOR A PLASMA LAMP - A plasma electrodeless lamp comprises a substantially hollow metallic body, closely receiving two coupling elements, the first coupling element connected to the output of an RF amplifier, and the second coupling element connected to the input of an RF amplifier. The first coupling element is conductively connected (grounded) to metallic lamp body at its top surface, while the second coupling element is not. The lamp further comprises a vertical metallic post, the post being grounded to the metallic lamp body at the post's bottom surface. The lamp further comprises a dielectric sleeve which closely receives the metallic post, and which is in turn closely supported by the lamp body or alternatively or in combination a tuning stub. The lamp further comprises a bulb that is closely received by the metallic post, and that encloses a gas-fill which forms a radiant plasma when excited. | 06-03-2010 |
| 20100308726 | Helical Structure and Method for Plasma Lamp - A plasma lamp apparatus includes a post structure with a material overlying a surface region of the post structure, which has a first end and a second end. The apparatus also has a helical coil structure configured along the post structure. The apparatus includes a bulb with a fill material capable of emitting electromagnetic radiation. A resonator coupling element configured to feed radio frequency energy to at least the helical coil causes the bulb device to emit electromagnetic radiation. | 12-09-2010 |
| 20100320905 | PLASMA LAMP USING A SHAPED WAVEGUIDE BODY - A plasma lamp for an electrodeless plasma lamp having a shaped dielectric waveguide body. The shaped body may have a relatively thin region containing a bulb, and a second region thicker than the first region. Microwave probes may be positioned in the second region to provide power to the waveguide body. The body may be shaped to intensify the electric field in the first region adjacent to the bulb to allow operation at a lower frequency than a solid cylindrical or rectangular waveguide body having the same volume and dielectric constant. | 12-23-2010 |
| 20100320906 | Electrodeless Lamps with Grounded Coupling Elements - An electrodeless plasma lamp includes a bulb containing a gas-fill and light emitter(s) excited to produce light using radio-frequency (RF) energy. Input and output coupling elements separated from each other by a gap couple RF energy from an RF source to the bulb. One end of the input coupling element is electrically connected to an RF source while the other end is connected to ground. One end of the output coupling element is connected to ground while the other end is connected to the bulb. | 12-23-2010 |
| 20110037389 | ELECTRODELESS LAMPS WITH EXTERNALLY-GROUNDED PROBES AND IMPROVED BULB ASSEMBLIES - An electrode-less plasma lamps comprises 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. In some embodiments, a method of operating an electrodeless plasma lamp device includes transferring RF energy from the RF source to an input coupling-element and illuminating electromagnetic energy substantially from the length of a gas-filled vessel from discharge of the gas-filled vessel. | 02-17-2011 |
| 20110050099 | INTEGRATED RF ELECTRODELESS PLASMA LAMP DEVICE AND METHODS - An RF electrode-less plasma lighting device. The device has a base member, which has an outer region capable of being coupled to first AC potential and an inner region capable of being coupled to a second AC potential. In a preferred embodiment, the device has an RF module mechanically and integrally coupled to the base member. The RF module has an RF source, which has an output. The RF module has a first DC input and a second DC input. The first DC input of the RF module is coupled to the first DC potential and the second DC input of the RF module is coupled to the second DC potential. In a specific embodiment, the present device has an RF electrodeless plasma lighting assembly integrally coupled to the base member. The RF plasma lighting assembly has an RF input, which is coupled to the output of the RF source. | 03-03-2011 |
