| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 10/12/2008 | CA2619296A1 Ballast with socket-to-fixture voltage limiting |
| 10/09/2008 | WO2008120208A2 System and method for controlling voltage on discharge capacitors which control light energy from flash lamps |
| 10/09/2008 | WO2008119613A1 Method of ignition regulation of discharge lamp and the corresponding electronic ballast circuit |
| 10/09/2008 | WO2008119406A1 Ballast for a gas discharge lamp |
| 10/09/2008 | WO2008119376A1 Circuit configuration for controlling at least one fluorescent lamp |
| 10/09/2008 | US20080247183 Bus stop arm and lamp for bus stop arm |
| 10/09/2008 | US20080246926 Method For Operating a High-Intensity Discharge Lamp, Lamp Driver and Projection System |
| 10/09/2008 | US20080246420 Light source driving device |
| 10/09/2008 | US20080246419 Led Luminary System |
| 10/09/2008 | US20080246418 Driver system and method with multi-function protection for cold-cathode fluorescent lamp and external-electrode fluorescent lamp |
| 10/09/2008 | US20080246416 Process and apparatus for improved led performance |
| 10/09/2008 | US20080246415 System and method for providing adjustable ballast factor |
| 10/09/2008 | US20080246414 Inductive load sensor for dimmer circuit |
| 10/09/2008 | US20080246413 Dc/ac cold cathode fluorescent lamp inverter |
| 10/09/2008 | US20080246412 Fluorescent lamp driver |
| 10/09/2008 | US20080246411 Fluorescent lamp driver power |
| 10/09/2008 | US20080246410 Lighting Device and a Lighting Method for a High Pressure Discharge Lamp |
| 10/09/2008 | US20080246409 Power Supply for Halogen Lamp |
| 10/09/2008 | US20080246408 EL lamp driver with plural outputs |
| 10/09/2008 | DE102007016322A1 Schaltung zur Wendelheizung Circuit for coil heating |
| 10/09/2008 | DE102007015715A1 Vorschaltgerät für eine Gasentladungslampe Ballast for a gas discharge lamp |
| 10/08/2008 | EP1978789A1 Lamps supplying device, particularly to be used in light tower |
| 10/08/2008 | EP1978630A2 Fluorescent lamp driver |
| 10/08/2008 | EP1977629A2 Device for controlling drive current for an electroluminescent device array with amplitude shift modulation |
| 10/08/2008 | EP1977411A2 Solid-state, color-balanced backlight with wide illumination range |
| 10/08/2008 | EP1977160A1 Kit for converting a luminaire |
| 10/08/2008 | CN201131079Y Electricity-saving controller for lighting lamp |
| 10/08/2008 | CN201131078Y Minitype picture-taking flash lamp |
| 10/08/2008 | CN201131077Y Ballast for metal halide lamp |
| 10/08/2008 | CN201131076Y Novel high voltage sodium lamp electronic ballast |
| 10/08/2008 | CN201131075Y Ballast circuit of miniaturization completely-pressing type daylight lamp tube |
| 10/08/2008 | CN201130655Y Refitting type energy-saving sunlight lamp |
| 10/08/2008 | CN201129696Y L-shaped lamp tube group of side light type back light module unit |
| 10/08/2008 | CN101282610A Method for adjusting light of plane fluorescent lamp |
| 10/08/2008 | CN101282609A Universal dimmer |
| 10/08/2008 | CN101282608A Lamp driving apparatus for liquid crystal display device |
| 10/08/2008 | CN100424996C Ramp voltage generating apparatus and active matrix drive-type display apparatus |
| 10/08/2008 | CN100424607C Dimming ballast control IC with flash suppression circuit |
| 10/07/2008 | US7432670 Device for turning on high-pressure discharge lamp and lighting apparatus equipped with the device |
| 10/07/2008 | US7432669 Backlight unit and method for driving the same |
| 10/07/2008 | US7432665 Method and device for driving a metal halide lamp |
| 10/07/2008 | US7432660 IC-based low cost reliable electronic ballast with multiple striking attempts and end of lamp life protection |
| 10/07/2008 | CA2374291C Point-of-use water treatment system |
| 10/02/2008 | WO2008117673A1 Electric discharge lamp operating device, lighting equipment and lighting system |
| 10/02/2008 | WO2008116561A1 Error detector in an operating device for lighting devices |
| 10/02/2008 | WO2008116520A1 Digital control circuit of an operating device for lamps |
| 10/02/2008 | WO2008116496A1 Operating device and lighting system for low-pressure discharge lamps having temperature-dependant power return control |
| 10/02/2008 | WO2008098013A3 System and apparatus for cathodoluminescent lighting |
| 10/02/2008 | US20080238344 Light Emitting Apparatus |
| 10/02/2008 | US20080238334 Hid lamp ballast circuit |
| 10/02/2008 | US20080238333 Inverter, Backlight Assembly Having the Same and Display Apparatus Having the Same |
| 10/02/2008 | US20080238331 Energy saving power supply circuit |
| 10/02/2008 | US20080238324 Vehicular lamp lighting circuit |
| 10/02/2008 | DE19501695B4 Vorschaltgerät für mindestens eine Gasentladungslampe mit vorheizbaren Lampenwendeln Ballast for at least one gas discharge lamp with preheatable lamp filaments |
| 10/02/2008 | DE112006001948T5 DC/DC-Umrichtervorrichtung und Entladelampen-Leuchtvorrichtung DC / DC converter device and discharge lamps lighting device |
| 10/02/2008 | DE102007015508A1 Digitale Steuerschaltung eines Betriebsgeräts für Leuchtmittel Digital control circuit of an operating device for lamps |
| 10/02/2008 | DE102007013742A1 Betriebsgerät und Verfahren für den kombinierten Betrieb von Gasentladungslampen und Halbleiterlichtquellen Apparatus and method for operating the combined operation of gas discharge lamps and semiconductor light sources |
| 10/02/2008 | CA2681990A1 Discharge lamp lighting device, lighting fixture, and lighting system |
| 10/01/2008 | EP1976343A1 Discharge lamp lighting device and lighting fixture |
| 10/01/2008 | EP1976342A1 Metal halogenation lamp electron driver |
| 10/01/2008 | CN201127139Y Energy-saving durable electric ballast |
| 10/01/2008 | CN201127138Y Starter for high-frequency fluorescent lamp and fluorescent lamp preheat circuit using the same |
| 10/01/2008 | CN201127135Y Control circuit for solar energy lamp |
| 10/01/2008 | CN201126811Y Non-polar light source |
| 10/01/2008 | CN201126128Y Flatness detector special-purpose lamp |
| 10/01/2008 | CN101278602A Adaptive driver for dielectric barrier discharge (DBD) lamp |
| 10/01/2008 | CN101278372A External electrode lamp, backlight unit, and liquid crystal display |
| 10/01/2008 | CN101277572A Backlight inverter, drive methodand liquid crystal display using the same |
| 10/01/2008 | CN101277571A Ignition control method for discharge lamp as well as corresponding an electronic ballast circuit |
| 10/01/2008 | CN101277570A Fluorescent lamp driving method and apparatus |
| 10/01/2008 | CN101277569A Current balancing circuit which can be easy electrical connecting |
| 10/01/2008 | CN101277568A Sunlight lamp control apparatus with self-lifting type flow-chasing circuit |
| 10/01/2008 | CN101276073A LCD backlight high-voltage power supply converting system |
| 10/01/2008 | CN100423619C Apparatus and method for driving high intensity discharge lamp |
| 10/01/2008 | CN100423438C DC-AC transformer and controller IC thereof |
| 10/01/2008 | CN100422821C Liquid crystal display and driving light source device |
| 09/30/2008 | US7429831 Balance controlling circuit |
| 09/30/2008 | US7429827 Solar powered light assembly to produce light of varying colours |
| 09/25/2008 | WO2008114106A2 Method and system for adjusting the luminous flux of lamps |
| 09/25/2008 | WO2008113696A1 Driving regulation method for bipolar transistors in electronic ballast and the device thereof |
| 09/25/2008 | WO2008042069A3 Circuit for powering a high intensity discharge lamp |
| 09/25/2008 | US20080231816 Discharge lamp lighting device and image projection device |
| 09/25/2008 | US20080231776 Backlight assembly and liquid crystal display having the same |
| 09/25/2008 | US20080231212 Parallel lighting system for surface light source discharge lamps |
| 09/25/2008 | US20080231209 Power supply device, and led device and electronic device using same |
| 09/25/2008 | US20080231208 Discharge lamp lighting apparatus and semiconductor integrated circuit |
| 09/25/2008 | US20080231207 Discharge lamp lighting apparatus and semiconductor integrated circuit |
| 09/25/2008 | US20080231206 Method and Ballast for Driving a High-Pressure Gas Discharge Lamp |
| 09/25/2008 | US20080231205 Current mode resonant inverter |
| 09/25/2008 | US20080231197 Power supply unit, high-frequency circuit system and heater voltage control method |
| 09/25/2008 | US20080231196 Light source of side-edge type LED backlight unit |
| 09/25/2008 | DE102007048234A1 Quecksilberfreie flache Fluoreszenzlampe Mercury-free flat fluorescent lamp |
| 09/25/2008 | DE102007012934A1 Startergehäuse für Leuchtstoffröhren Starter Housing for fluorescent lamps |
| 09/24/2008 | EP1973389A2 Digital dimmer device for energy efficient light bulbs |
| 09/24/2008 | EP1973388A1 Luminaire ballast |
| 09/24/2008 | CN201123167Y Emergency power supply for fluorescent lamp |
| 09/24/2008 | CN201123166Y 两用日光灯镇流器 Dual fluorescent ballasts |
| 09/24/2008 | CN201123165Y High-intensity discharge lamp electric power stabilizer |
| 09/24/2008 | CN201123164Y Series connection type electric trigger |
| 09/24/2008 | CN201123163Y Installation component for installing high-intensity discharge lamp electric power stabilizer |