| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 12/23/2009 | CN100574079C Inverter, its drive method, light emitting device and liquid crystal television using the same |
| 12/23/2009 | CN100573810C Power supplier of illuminator without electrode |
| 12/23/2009 | CN100573262C Liquid crystal display backlight device |
| 12/23/2009 | CN100571510C Intelligent electronic luminous float |
| 12/22/2009 | US7635955 Back light assembly and display apparatus having the same |
| 12/17/2009 | WO2009151941A1 Multi-lamps instant start electronic ballast |
| 12/17/2009 | WO2009149763A1 Circuit arrangement and method for operating a light source |
| 12/17/2009 | WO2009149556A1 Dimmable single stage electronic ballast with high power factor |
| 12/17/2009 | WO2008116561A9 Error detector in an operating device for lighting devices |
| 12/17/2009 | US20090309518 Apparatus and method for monitoring at least one fluorescent lamp |
| 12/17/2009 | US20090309517 Temperature dependent current control circuit for LED lighting |
| 12/17/2009 | US20090309516 Pixel and organic light emitting display device using the same |
| 12/17/2009 | US20090309513 Method of controlling the colour of the light output of a lamp |
| 12/17/2009 | US20090309511 Dimming fluorescent ballast system with shutdown control circuit |
| 12/17/2009 | US20090309510 Led driver circuit capable of adjusting output current |
| 12/17/2009 | US20090309509 Power supply for a hot-filament cathode |
| 12/17/2009 | US20090309508 Driving circuit of multi-lamps |
| 12/17/2009 | US20090309507 Method for powering a control circuit for a gas discharge lamp during pre-heating of said lamp, and a device for performing said method |
| 12/17/2009 | US20090309505 Ac illumination apparatus with amplitude partitioning |
| 12/17/2009 | US20090309501 Light Emitting Diode Replacement Lamp |
| 12/17/2009 | DE10044194B4 Entladungslampenvorrichtung für ein Fahrzeug Discharge lamp device for a vehicle |
| 12/17/2009 | CA2727529A1 Dimmable single stage electronic ballast with high power factor |
| 12/17/2009 | CA2725723A1 Multi-lamps instant start electronic ballast |
| 12/16/2009 | EP2133905A1 Plasma lamp with dielectric waveguide |
| 12/16/2009 | EP2132965A1 Circuit for coil heating |
| 12/16/2009 | EP2132964A1 Circuit arrangement and method for operating a high-pressure discharge lamp |
| 12/16/2009 | EP2132963A1 Ballast for a gas discharge lamp |
| 12/16/2009 | CN201365371Y Driving circuit for light-adjusting energy-saving lamp |
| 12/16/2009 | CN201365370Y Electronic ballast with linearization dimming structure |
| 12/16/2009 | CN201365369Y Indoor daylight lamp energy-saving control system based on singlechip |
| 12/16/2009 | CN201365368Y Multi-lamp-tube driving circuit |
| 12/16/2009 | CN201365367Y High-efficiency and energy-saving ballast |
| 12/16/2009 | CN201364875Y Electrodeless power coupler |
| 12/16/2009 | CN201363592Y Ultra-violet point light source steady power output device |
| 12/16/2009 | CN101606441A Method and device for driving a gas discharge lamp |
| 12/16/2009 | CN101606440A Methods and apparatus for dimmable ballasts with a high power factor |
| 12/16/2009 | CN101606439A Lamp malfunction detecting device and inverter equipped with the same, back lighting device and display device |
| 12/16/2009 | CN101606317A High-voltage pulse generator and high-pressure discharge lamp comprising such a generator |
| 12/16/2009 | CN101606072A Device for measuring the current of a discharge lamp |
| 12/16/2009 | CN101605424A CCFL controller with multi-function terminal |
| 12/16/2009 | CN101605423A Drive circuit of multiple strip lamps |
| 12/16/2009 | CN101605422A Fluorescent lighting tube driving circuit |
| 12/16/2009 | CN101605421A Lamp lighting system |
| 12/16/2009 | CN100571480C Circuit arrangement for operating a high pressure discharge lamp |
| 12/16/2009 | CN100570812C Microwave powered lamp with reliable detection of burned out light bulbs |
| 12/16/2009 | CN100570806C Planar fluorescent tube and its driving method |
| 12/15/2009 | US7634191 Portable communication device equipped with an electronic flash having a LED ignition device |
| 12/15/2009 | US7633779 Method and apparatus for operating a light emitting diode with a dimmer |
| 12/15/2009 | US7633769 DC-AC converter, and method for supplying AC power |
| 12/15/2009 | US7633406 Lighting control system |
| 12/15/2009 | US7633244 Method for dimming multiple lamps |
| 12/15/2009 | US7633240 Lamp driving apparatus having balance circuit units for a display |
| 12/15/2009 | US7633239 Dimming circuit for controlling electrical power |
| 12/15/2009 | US7633238 Lamp driving device and display apparatus having the same |
| 12/15/2009 | US7633235 Inductively-powered power transfer system with one or more independently controllable loads |
| 12/15/2009 | US7633233 Digital control system for LCD backlights |
| 12/15/2009 | US7633230 Dimmable fluorescent lamp package |
| 12/15/2009 | CA2424923C Energy saving electrical power control device and method |
| 12/10/2009 | WO2009147946A1 Display device and television reception device |
| 12/10/2009 | WO2009146934A2 Lamp type detection by means of power factor correction circuit |
| 12/10/2009 | WO2009121627A3 Inductive component for activating lights |
| 12/10/2009 | US20090302784 High pressure Discharge Lamp |
| 12/10/2009 | US20090302783 Led illumination system with multiple independent loops |
| 12/10/2009 | US20090302778 Switching led driver circuit |
| 12/10/2009 | US20090302777 Pulse generator used for electronic ballast |
| 12/10/2009 | US20090302776 Electronic circuit for driving a diode load with a predetermined average current |
| 12/10/2009 | US20090302773 Electronic reactive current oscillation-reducing ballast |
| 12/10/2009 | US20090302772 Fluorescent lamp dimming circuit |
| 12/10/2009 | US20090302768 Inverter circuit for light source |
| 12/10/2009 | DE102009021048A1 Schaltung zum Beheizen wenigstens einer Heizwendel einer Gasentladungslampe, und Beleuchtungssystem Circuit for heating at least one heating coil of a gas discharge lamp, and lighting system |
| 12/10/2009 | DE102008027029A1 Lampentyperkennung durch Leistungsfaktorkorrekturschaltung Lamp type recognition by power factor correction circuit |
| 12/10/2009 | DE102008026521A1 Thoriumfreie Hochdruckentladungslampe für Hochfrequenzbetrieb Thorium-free high-pressure discharge lamp for high-frequency operation |
| 12/09/2009 | EP2131631A1 Electric discharge lamp operating device, lighting equipment and lighting system |
| 12/09/2009 | EP2130413A1 Method of ignition regulation of discharge lamp and the corresponding electronic ballast circuit |
| 12/09/2009 | EP2130412A1 Error detector in an operating device for lighting devices |
| 12/09/2009 | EP2130411A1 Digital control circuit of an operating device for lamps |
| 12/09/2009 | EP1307899B1 Plasma lamp with dielectric waveguide |
| 12/09/2009 | CN201360379Y Street lamp energy-saving controller |
| 12/09/2009 | CN201360378Y Electronic transducer of high-voltage sodium lamp |
| 12/09/2009 | CN201360377Y Thin-film high voltage coil |
| 12/09/2009 | CN201360376Y Flat copper wire high voltage coil |
| 12/09/2009 | CN201360375Y Low-voltage DC electronic energy-saving lamp |
| 12/09/2009 | CN201360374Y Ultra-bright plug-in conical helix type electronic tricolor fluorescent tube energy-saving lamp |
| 12/09/2009 | CN201359991Y Energy saving lamp convenient for installation |
| 12/09/2009 | CN201359245Y Novel intelligent xenon brightness enhancing device |
| 12/09/2009 | CN201359243Y Low-voltage DC power supply lighting lamp |
| 12/09/2009 | CN201359242Y PAR64 metal halide double head lamp for high-speed railway EMU locomotive |
| 12/09/2009 | CN101601332A Circuit arrangement and method for progressively dimming one or more lighting means |
| 12/09/2009 | CN101601331A 照明控制器 Lighting Controller |
| 12/09/2009 | CN101600288A Electronic ballast circuit adaptable to common light adjustor to adjust light |
| 12/09/2009 | CN101600287A Automatic control method of the output power of gas discharge lamp and electronic ballast |
| 12/09/2009 | CN101600286A HID lamp electronic ballast |
| 12/09/2009 | CN101600285A Liquid crystal display, backlight module and drive method thereof |
| 12/09/2009 | CN100569041C Device and method for controlling a gas discharge lamp, and lighting system with gas discharge lamp and control device |
| 12/09/2009 | CN100569040C High voltage discharge lamp lighting device, starting unit and lighting device |
| 12/09/2009 | CN100569039C Circuit of inverter with effect of power factor |
| 12/09/2009 | CN100568701C DC-AC converter, method for supplying AC power and light source |
| 12/09/2009 | CN100568064C Power supply apparatus |
| 12/09/2009 | CN100567801C Changeable colour dynamic advertisement lighting lamp |
| 12/09/2009 | CN100567050C Discharge lamp turn-on device |