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| Number | Title | Issue Date |
| 7253109 | Method of depositing a tantalum nitride/tantalum diffusion barrier layer system We have discovered a method of providing a thin, approximately from about 2 Å to about 100 Å thick TaN seed layer, which can be used to induce the formation of alpha tantalum when tantalum is deposited over the TaN seed layer. Further, the ... | 08/07/2007 |
| 7205504 | Interlayer composite for a laminated transparency An interlayer composite includes a plastic sheet having a predetermined outer shape and a major surface; a pair of bus bars, and an adhesive layer securing the bus bars directly on the major surface of the plastic sheet in a fixed relationship to one another. ... | 04/17/2007 |
| 7074714 | Method of depositing a metal seed layer on semiconductor substrates We disclose a method of applying a sculptured layer of material on a semiconductor feature surface using ion deposition sputtering, wherein a surface onto which the sculptured layer is applied is protected to resist erosion and contamination by impacting ions of a d... | 07/11/2006 |
| 7049764 | Electrodeless lighting apparatus using microwave and method for controlling power thereof An electrodeless lighting apparatus using microwave and a method for controlling its power can lengthen lifetimes of the magnetron by constantly maintaining power applied to a magnetron of the electrodeless lighting apparatus using microwave. Therefore, when inputte... | 05/23/2006 |
| 7038365 | Electrode-less fluorescent lamp having a 3-dimensional structure, and a method for manufacturing the same An electrode-less fluorescent lamp and a method for manufacturing the same are disclosed. The electrode-less fluorescent lamp includes a closed-loop tubular discharge tube enclosing a discharge gas. The tube is coated with a fluorescent layer on an inner surface and... | 05/02/2006 |
| 6933675 | Apparatus for blocking ambient air of electrodeless lighting system and waveguide thereof An apparatus for blocking ambient air of an electrodeless lighting system comprises: a waveguide including a shaft hole so that a bulb shaft can be penetrated therethrough; a bulb motor mounted on a rear side of the waveguide and connected to a bulb, which is locate... | 08/23/2005 |
| 6908586 | Free radical polymerization method having reduced premature termination, apparatus for performing the method and product formed thereby A method of polymerizing by a free radical polymerization mechanism, product formed thereby, and apparatus for performing this method, are disclosed. The composition to be polymerized by the free radical polymerization mechanism is irradiated by a substantially cons... | 06/21/2005 |
| 6696802 | Radio frequency driven ultra-violet lamp A lamp assembly in accordance with the invention includes an electrodeless bulb (14) which is symmetrical about an axis (16) and which contains a light emissive fill which emits light when the bulb is excited by a RF electrical field coupled to the fill; ... | 02/24/2004 |
| 6373198 | Induction lamp system and induction lamp Induction lamp system comprising a power supply unit, which can supply a high-frequency altenating voltage, a power supply cable connected to the power supply unit and an induction lamp connected to the power supply cable. The lamp is provided with an ind... | 04/16/2002 |
| 6175199 | Magnetically deflected arc lamp The arc of an alternating current discharge lamp may be magnetically straightened by including a small direct current component to the lamp current. The lamp may then be operated substantially as an alternating current lamp, but with out the need to synch... | 01/16/2001 |
| 6087783 | Method and apparatus utilizing microwaves to enhance electrode arc lamp emission spectra A system and method for operating a dual electrode flashlamp. The method employs steps of applying an electrical potential between a pair of electrodes of the dual electrode flashlamp; and irradiating a region behind one of said electrodes with microwave ... | 07/11/2000 |
| 6043613 | Starting system for electrodeless metal halide discharge lamps A starting system for an electrodeless metal halide discharge lamp includes a parallel tuned LC network including a fixed capacitor and a starting inductor, and also including a conductive plate for application to the starting inductor for detuning the ne... | 03/28/2000 |
| 5990632 | Excitation circuit for an electrodeless lamp including a pulsed power source An RF source is periodically pulsed for exciting an electrodeless light bulb in an on-off mode so as to intermittently drive the bulb to a high peak power operating point where light generation efficiency is relatively high, while maintaining a relatively... | 11/23/1999 |
| 5847517 | Method and apparatus for igniting electrodeless lamp with ferroelectric emission Ignition of an electrodeless lamp, energized by microwave or radio frequency energy, is achieved by disposing a ferroelectric igniter in the lamp envelope along with the fill material. The igniter responds to switching of its spontaneous ferroelectric pol... | 12/08/1998 |
| 5841243 | Load matched excitation circuit for an electrodeless lamp including a frequency swept RF excitation source An excitation circuit for an electrodeless light bulb which includes an RF source, a driver amplifier, and a load matching network and where the frequency of the RF energy generated by the source is swept over a predetermined frequency range in a controll... | 11/24/1998 |
| 5834905 | High intensity electrodeless low pressure light source driven by a transformer core arrangement An electric lamp assembly includes an electrodeless lamp having a closed-loop, tubular envelope enclosing mercury vapor and a buffer gas at a pressure less than about 0.5 torr, a transformer core disposed around the lamp envelope, an input winding dispose... | 11/10/1998 |
| 5650695 | Illumination unit; and electrodeless low-pressure discharge lamp, holder, and supply unit suitable for use in the illumination unit An illumination unit according to the invention comprises an electrodeless low-pressure discharge lamp 10. The illumination unit is provided with a lamp vessel 20 which encloses a discharge space 21 which contains an ionizable filling. The illumination un... | 07/22/1997 |
| 5635802 | Lighting unit having electrodeless low-pressure discharge lamp with a luminescent layer A lighting unit according to the invention comprises an electrodeless low-pressure discharge lamp 20 provided with a discharge vessel 20 enclosing a discharge space 20 with an ionizable filling in a gastight manner. The discharge vessel 20 has a recessed ... | 06/03/1997 |
| 5576599 | Low EMI high intensity discharge RF driven lamp A high intensity discharge light source that uses a pseudo-random sequence generator to modulate an RF drive signal, and reduce electromagnetic interference (EMI) produced by the light source. The light source includes a high intensity RF discharge lamp, ... | 11/19/1996 |
| 5559392 | Apparatus for securing an amalgam at the apex of an electrodeless fluorescent lamp A first portion of a spiral wire support for an amalgam is securely fitted into an exhaust tube formed in a re-entrant cavity of an electrodeless fluorescent lamp before attachment and sealing of the re-entrant cavity to the bulb of the lamp. A second por... | 09/24/1996 |
| 5541482 | Electrodeless discharge lamp including impedance matching and filter network An impedance matching and filter network is disclosed. The network performs two preselected impedance transformations and provides a filtering function to attenuate harmonics of an electrical signal delivered at an input of the network. The network may ad... | 07/30/1996 |
| 5500567 | Apparatus for securing an amalgam at the apex of an electrodeless fluorescent lamp A glass rod extending through and sealed to the exhaust tube of an electrodeless SEF fluorescent discharge lamp has a metal support member at one end thereof for supporting an amalgam at or near the apex of the lamp envelope. The metal support member may ... | 03/19/1996 |
| 5493184 | Electrodeless lamp with improved efficiency An electrodeless lamp which operates with a high efficiency and with a lower cooling requirement. The bulb is rotated at a high speed which results in a substantial increase in efficiency. Because more of the input energy is converted to light, and less t... | 02/20/1996 |
| 5461284 | Virtual fixture for reducing electromagnetic interaction between an electrodeless lamp and a metallic fixture An electrodeless lamp (e.g., an electrodeless fluorescent lamp) includes a dielectric housing shaped to conform to a portion of a lamp envelope, which housed portion is opposite to a portion through which light is emitted. The dielectric housing includes ... | 10/24/1995 |
| 5446350 | Impedance matching circuit for an electrodeless fluorescent lamp ballast An impedance matching circuit for a self-oscillating electrodeless fluorescent lamp ballast of the type having an inductor connected in series with the parallel combination of a capacitor and the lamp's drive coil includes an additional capacitor connecte... | 08/29/1995 |
| 5434482 | Electrodeless fluorescent lamp with optimized amalgam positioning An amalgam is accurately placed and retained in an optimal location near the cold spot of an electrodeless SEF lamp for operation at a mercury vapor pressure in the optimum range from approximately four to seven millitorr. The amalgam is positioned at the... | 07/18/1995 |
| 5325018 | Electrodeless fluorescent lamp shield for reduction of electromagnetic interference and dielectric losses An electrodeless fluorescent lamp of the type having a solenoidal drive coil wound about a ferrite core includes an inner shield between the coil and the core and further includes an outer shield about the coil. The shields are preferably constructed of s... | 06/28/1994 |
| 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 |
| 5309063 | Inductive coil for inductively coupled plasma production apparatus The invention is directed to an induction coil which includes a flat spirally wound portion and a tubular spirally wound portion extending from the outer edge of the flat portion. The axis of the tubular portion is substantially perpendicular to the flat ... | 05/03/1994 |
| 5063333 | Discharge tube arrangement A discharge tube arrangement comprises a launcher and a discharge tube positioned in part within the launcher. When the launcher is energized with radio frequency (r.f.) power, surface waves are excited in the discharge tube which contains a fill. An elec... | 11/05/1991 |
| 4910439 | Luminaire configuration for electrodeless high intensity discharge lamp A high intensity discharge electrodeless lamp having a segmented excitation coil and capacitor configuration offers minimum light obstruction and RF losses while providing maximum impedance matching and heat transfer from the coil to a heat sink. The exci... | 03/20/1990 |
| 4902937 | Capacitive starting electrodes for hid lamps A pair of starting electrodes are provided for an electrodeless high-intensity-discharge lamp arc of the type having an envelope situated within the bore of an excitation coil and in the interior of which envelope is to be provided a plasma arc discharge ... | 02/20/1990 |
| 4877999 | Method and apparatus for producing an hf-induced noble-gas plasma The invention concerns a method and apparatus to produce a noble-gas plasma for excitation in optical emission spectrometry. The apparatus includes an hf generator feeding an oscillation circuit consisting of at least one inductor and one capacitor. The c... | 10/31/1989 |
| 4859906 | Deep UV lamp bulb with improved fill An electrodeless lamp bulb comprises of a quartz envelope and a fill containing mercury in a ratio of from 0.5-0.9 microliters per milliliter of envelope volume at room temperature. A lamp including such bulb which is powered by microwaves.... | 08/22/1989 |
| 4818915 | Arc discharge lamp with ultraviolet radiation starting source A metal halide arc discharge lamp comprises an arc tube containing a chemical fill including mercury and metal halides and having first and second electrodes respectively sealed at opposite ends thereof. An outer envelope surrounds the arc tube and has fi... | 04/04/1989 |
| 4812714 | Arc discharge lamp with electrodeless ultraviolet radiation starting source A metal halide arc discharge lamp comprises an arc tube containing a chemical fill including mercury and metal halides and having first and second electrodes respectively sealed at opposite ends thereof. An outer envelope surrounds the arc tube and has fi... | 03/14/1989 |
| 4780645 | Electronic light radiation tube An electronic light radiation tube wherein a cathode and an anode disposed as spaced from each other by a small spacing are housed in an envelope enclosing therein a luminous gas, and a magnetic field is applied to the envelope so as to cause magnetic lin... | 10/25/1988 |
| 4745338 | Electromagnetically sustained plasma reactor An improved plasma arc reactor is provided with variably positionable electrodes, including a cylindrical anode electrode having an inner, frustoconical cavity providing a reaction chamber and a spherical cathode ball electrode mounted therein. Between th... | 05/17/1988 |
| 4629887 | Plasma excitation system A radio frequency excitor apparatus and method produce an inductively coupled plasma to heat an analytic sample. The apparatus includes a radio frequency generator mechanism for producing electrical power of selected radio frequency. The generator mechani... | 12/16/1986 |
| 4504768 | Electrodeless lamp using a single magnetron and improved lamp envelope therefor A microwave generated electrodeless lamp using a single magnetron, and an improved lamp envelope therefor. An elongated lamp envelope containing a plasma forming medium is disposed in a microwave chamber comprised of a reflector and mesh. The reflector in... | 03/12/1985 |
