| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 06/15/2011 | CN102098857A Ballast resonance ignition method and system |
| 06/15/2011 | CN102098854A Dimming driving method and device and dimming lamp |
| 06/15/2011 | CN102096292A 投影机 Projector |
| 06/15/2011 | CN101257764B Method for enhancing fluorescent illumination efficiency and energy conservation effect |
| 06/15/2011 | CN101179893B Energy-saving conversion head of electric type fluorescent lamp |
| 06/15/2011 | CN101128080B Power supply system for cold cathode tube and light tube start method |
| 06/15/2011 | CN101112126B Distributed intelligence ballast system and extended lighting control protocol |
| 06/15/2011 | CN101079367B Non internal electrode and no Hg highly efficient and long-life gas discharge lamp |
| 06/14/2011 | US7960918 Electronic device and light emission control method for electronic device |
| 06/14/2011 | CA2426915C Low-pressure discharge lamp with a device for switching it off at the end of its service life |
| 06/09/2011 | WO2011066596A2 Actuation circuit for an operating device for lighting means |
| 06/09/2011 | US20110133669 Light emitting diode driving device |
| 06/09/2011 | US20110133667 Control box for a christmas light string |
| 06/09/2011 | US20110133665 Luminance adjusting device |
| 06/09/2011 | US20110133664 Transition Mode Commutation For Inverter |
| 06/09/2011 | US20110133663 High-pressure discharge lamp |
| 06/09/2011 | US20110133657 Light emitting device driver circuit and method for driving light emitting device |
| 06/09/2011 | DE102009047572A1 Schaltungsanordnung zum Betreiben mindestens einer Entladungslampe Circuit arrangement for operating at least a discharge lamp |
| 06/09/2011 | DE102009047290A1 Verfahren zur Einstellung eines elektronischen Vorschaltgeräts, elektronisches Vorschaltgerät und Abgleicheinheit Method for setting an electronic ballast, electronic ballast and adjustment unit |
| 06/09/2011 | DE102009047288A1 Verfahren zur Einstellung eines einer Frequenz einer Brückenschaltung eines elektronischen Vorschaltgeräts, elektronisches Vorschaltgerät und Abgleicheinheit Method for setting a frequency of a bridge circuit of an electronic ballast, electronic ballast and adjustment unit |
| 06/08/2011 | EP2330871A1 A power unit for lighting applications |
| 06/08/2011 | EP2329690A1 Control of lamp striking voltage and recovery of energy from resonant lamp strike circuits used for electronic high intensity discharge lamp ballasting and other lamp ballasts |
| 06/08/2011 | EP1932398B1 Dynamic coil heating |
| 06/08/2011 | CN201860501U Series-type electrodeless lamp |
| 06/08/2011 | CN201860500U Electronic ballast for fluorescent lamp |
| 06/08/2011 | CN201860499U Fluorescent lamp with long service life and low harmonic wave |
| 06/08/2011 | CN201860498U Electronic inverter of low-voltage direct-current fluorescent lamp |
| 06/08/2011 | CN201860497U High frequency voltage-multiplying electronic ballast |
| 06/08/2011 | CN201860496U Electronic ballast with protection function |
| 06/08/2011 | CN201860495U Energy-saving high-voltage sodium lamp |
| 06/08/2011 | CN201859639U Display with automatic light stabilizing function |
| 06/08/2011 | CN1882215B Circuit and method of operating high pressure discharge lamps |
| 06/08/2011 | CN1781343B Starter circuit having regulated starting voltage |
| 06/08/2011 | CN102090152A Modified alternating current operation of a high-pressure discharge lamp |
| 06/08/2011 | CN102090147A System and method for providing adjustable ballast factor |
| 06/08/2011 | CN102089853A Light emitting device |
| 06/08/2011 | CN102089851A Quick-start for low-pressure mercury amalgam lamps |
| 06/08/2011 | CN102088816A Lighting apparatus for high-pressure discharge lamp and projector |
| 06/08/2011 | CN102088815A Tube driving device and displacement driving circuit |
| 06/08/2011 | CN102088814A Low-frequency electrodeless lamp drive circuit with open-circuit protection function |
| 06/08/2011 | CN102088156A Lamp tube switching device |
| 06/08/2011 | CN102086998A Intelligent tracking system for lighting of head lamp of high intensity discharge (HID) locomotive |
| 06/08/2011 | CN101155457B Light source driving mechanism with jump-spark protection function |
| 06/08/2011 | CN101051599B Lighting system with dielectrically impeded discharging lamp, operating device and connecting cable |
| 06/08/2011 | CN101044800B Dimmable lighting system |
| 06/07/2011 | US7956550 Complementary application specific integrated circuit for compact fluorescent lamps |
| 06/07/2011 | US7956549 Power conversion structure |
| 06/07/2011 | US7956315 Discharge lamp lighting device, method of controlling discharge lamp lighting device, and projector |
| 06/03/2011 | WO2011066399A1 Adaptive optics system for harmonization and balanced lighting in information displays |
| 06/03/2011 | WO2011064389A1 Method for setting an electronic ballast, an electronic ballast and a compensating unit |
| 06/03/2011 | WO2011064116A1 Circuit assembly and method for operating a discharge lamp |
| 06/03/2011 | WO2011064089A1 Method for adjusting a frequency of a bridge circuit of an electronic ballast, electronic ballast and alignment unit |
| 06/02/2011 | US20110128509 Light source device, projection apparatus, and projection method |
| 06/02/2011 | US20110128508 Lighting apparatus for high-pressure discharge lamp and projector |
| 06/02/2011 | US20110127927 Buck-Store and Boost-Restore Converter |
| 06/02/2011 | US20110127926 Discharge lamp light apparatus |
| 06/02/2011 | US20110127925 Triac dimmer compatible wled driving circuit and method thereof |
| 06/02/2011 | US20110127924 Frequency modulation method and device for high intensity discharge lamp |
| 06/01/2011 | EP2328386A1 Electronic ballast and lighting device |
| 06/01/2011 | EP2327280A1 Direct led lighting system and method |
| 06/01/2011 | EP2327279A2 Method for controlling a gas discharge lamp and control device |
| 06/01/2011 | EP2327278A1 Circuit and method for operating a high pressure lamp |
| 06/01/2011 | EP2327277A1 Method and system for operating a high intensity discharge lamp |
| 06/01/2011 | EP2327276A1 Circuit arrangement and method for operation of a discharge lamp |
| 06/01/2011 | EP2327084A1 Method and apparatus for maintaining constant color temperature of a fluorescent lamp |
| 06/01/2011 | DE102009055720A1 Elektronisches Vorschaltgerät und Beleuchtungsgerät Electronic ballast and lighting equipment |
| 06/01/2011 | CN201854494U Constant-power control electronic ballast of HID (high intensity discharge) lamp |
| 06/01/2011 | CN201854493U Flexible controller of electronic ballast of energy-saving fluorescent lamp |
| 06/01/2011 | CN201854492U High-frequency electrodeless lamp circuit structure |
| 06/01/2011 | CN201854491U Metal halogen lamp electronic ballast |
| 06/01/2011 | CN201854490U External adjustable electronic stabilizer |
| 06/01/2011 | CN201854489U Improved circuit structure of HID electronic ballast |
| 06/01/2011 | CN1949417B Transformer,lamp tube driver and method for regulating lamp tube brightness thereof |
| 06/01/2011 | CN1921727B Current transducing unit and current transducer |
| 06/01/2011 | CN102084725A Detecting the type of a gas discharge lamp connected to an operational device |
| 06/01/2011 | CN102084724A Electrodeless lamps with externally-grounded probes and improved bulb assemblies |
| 06/01/2011 | CN102084723A Low ignition voltage instant start for hot re-strike of high intensity discharge lamp |
| 06/01/2011 | CN102084457A Metal halide discharge lamp having high-pressure buffer gas |
| 06/01/2011 | CN102084181A A lamp and electronic ballast |
| 06/01/2011 | CN102083267A Electricity saving device |
| 06/01/2011 | CN102083266A Tube driving device |
| 06/01/2011 | CN102083265A Protective device of one-with-three electronic ballast |
| 06/01/2011 | CN102082065A Energy-saving fluorescent lamp tube |
| 06/01/2011 | CN101520596B Projector |
| 06/01/2011 | CN101043780B Road lamp electricity-saving method and electricity-saving device |
| 06/01/2011 | CN101009963B The system and method for wide-range analog voltage processing of the cold cathode fluorescent lamp |
| 05/31/2011 | US7953369 System and method for inductive power supply control using remote device power requirements |
| 05/31/2011 | US7952298 Split phase inverters for CCFL backlight system |
| 05/31/2011 | US7952297 Driving device for providing light dimming control of light-emitting element |
| 05/31/2011 | US7952292 Illumination control |
| 05/31/2011 | US7950807 Projector and control method thereof |
| 05/31/2011 | CA2431122C Electronic ballast with adaptable charge pump power factor correction |
| 05/26/2011 | WO2011061180A1 Method and device for starting hid lamp, and ballast |
| 05/26/2011 | WO2011061053A1 Electronic ballast and method for operating at least one discharge lamp |
| 05/26/2011 | US20110122165 Lamp driving circuit having low voltage control, backlight unit, and liquid crystal display using the same |
| 05/26/2011 | US20110121774 Alternating voltage control apparatus |
| 05/26/2011 | US20110121759 Method and gas discharge lamp with filter to control chromaticity drift during dimming |
| 05/26/2011 | US20110121750 Self-oscillating half-bridge drive device and light-emitting device |
| 05/26/2011 | US20110121747 End-of-life protection circuit and method for high intensity discharge lamp ballast |
| 05/26/2011 | US20110121746 High-pressure discharge lamp lighting device, high-pressure discharge lamp utilizing the same, projector utilizing said high-pressure discharge lamp, and high-pressure discharge lamp lighting method |