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Class Information
Number: 315/248
Name: Electric lamp and discharge devices: systems > Pulsating or a.c. supply > Induction-type discharge device load
Description: Systems wherein the load device in the system is a discharge device of the type which has an envelope (such as a glass bulb), containing an atmosphere of gas or vapor, the system including a magnetic coil mounted in inductive relation to the confined gas or vapor in the envelope and a generator of high frequency current connected to the magnetic coil so that the gas or vapor may be subjected to a high frequency field to ionize the gas or vapor within the envelope.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8710751 LED string with a capability to maintain a current path and LED unit thereof Apr. 29, 2014
8674619 High frequency power supply device Mar. 18, 2014
8674603 Electrodeless lamps with grounded coupling elements Mar. 18, 2014
8664860 Cathode heating device of magnetron, microwave generating device and method of preheating cathode of magnetron Mar. 4, 2014
8664858 Light fixture with an electrodeless plasma source Mar. 4, 2014
8624519 Variable load line gas curve intercept method to optimize system efficiency Jan. 7, 2014
8626083 Method and apparatus for tuning a communication device Jan. 7, 2014
8614543 Light source Dec. 24, 2013
8525430 Helical structure and method for plasma lamp Sep. 3, 2013
8508131 Electrodeless lighting system Aug. 13, 2013
8502482 Compact induction lamp Aug. 6, 2013
8487543 Electrodeless lamps and methods Jul. 16, 2013
8487544 Power splitter circuit for electrodeless lamp Jul. 16, 2013
8482203 Starter for electrodeless discharge lamp Jul. 9, 2013
8466609 Method and apparatus for positioning a ceramic induction discharge body relative to an induction coil Jun. 18, 2013
8461751 Light source Jun. 11, 2013
8461761 Lucent plasma crucible Jun. 11, 2013
8436546 Electrodeless lamps and methods May. 7, 2013
8427067 External resonator electrode-less plasma lamp and method of exciting with radio-frequency energy Apr. 23, 2013
8421325 More efficient electrodeless plasma lamp with increased overall capacitance through the use of multiple dielectric and insulating materials Apr. 16, 2013
8410700 Electrodeless lighting system and control method thereof Apr. 2, 2013
8405046 Method and apparatus for treating materials using electrodeless lamps Mar. 26, 2013
8384300 Integrated RF electrodeless plasma lamp device and methods Feb. 26, 2013
8378582 Plasma lighting system Feb. 19, 2013
8373352 Electrodeless plasma lamp array Feb. 12, 2013
8350480 Plasma lamp using a shaped waveguide body Jan. 8, 2013
8344624 Plasma lamp with dielectric waveguide having a dielectric constant of less than two Jan. 1, 2013
8344625 Plasma lamp with dielectric waveguide body having shaped configuration Jan. 1, 2013
8304994 Light collection system for an electrodeless RF plasma lamp Nov. 6, 2012
8299710 Method and apparatus to reduce arcing in electrodeless lamps Oct. 30, 2012
8294382 Low frequency electrodeless plasma lamp Oct. 23, 2012
8292483 Optical waveguide system using electrodeless plasma source lamps Oct. 23, 2012
8294368 Electrodeless lamps with grounded coupling elements Oct. 23, 2012
8283866 Electrodeless lamps with externally-grounded probes and improved bulb assemblies Oct. 9, 2012
8247987 Induction lamp lighting device and illumination apparatus Aug. 21, 2012
8247988 Compact delay line structures for field applicators for operation of electrodeless gas discharge lamps Aug. 21, 2012
8232730 Electrodeless plasma lamp systems and methods Jul. 31, 2012
8227993 Lamp having an electrodeless bulb Jul. 24, 2012
8217564 Electrodeless bulb having improved dimensions for light emission Jul. 10, 2012
8217581 Induction lamp with brightness adjustment capability Jul. 10, 2012
8203272 Plasma lamp with dielectric waveguide integrated with transparent bulb Jun. 19, 2012
8198614 Terahertz wave generator and method of generating high-power terahertz waves using the same Jun. 12, 2012
8198792 Electrodeless discharge lamp, lighting fixture, and method for manufacturing electrodeless discharge lamp Jun. 12, 2012
8193719 Using pulse density modulation for controlling dimmable electronic lighting ballasts Jun. 5, 2012
8193720 Electrodeless lamp protecting device Jun. 5, 2012
8188662 Plasma lamp having tunable frequency dielectric waveguide with stabilized permittivity May. 29, 2012
8179046 Ultraviolet lamp system with cooling air filter May. 15, 2012
8179047 Method and system for adjusting the frequency of a resonator assembly for a plasma lamp May. 15, 2012
8169152 Plasma lamp with field-concentrating antenna May. 1, 2012
8164265 Lighting method of microwave excitation discharge lamp Apr. 24, 2012

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