| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 03/25/2009 | EP2039226A2 Method of controlling a lighting system based on a target light distribution |
| 03/25/2009 | CN201213326Y Cold-starting power circuit for electrodeless lamp |
| 03/25/2009 | CN201213325Y Starter for daylight lamp |
| 03/25/2009 | CN201213127Y Electrodeless lamp |
| 03/25/2009 | CN101395972A Method of driving a discharge lamp, and driving unit |
| 03/25/2009 | CN101395971A Method and device for driving a discharge lamp |
| 03/25/2009 | CN101395970A Electronic ballast and method for operating an electrical lamp |
| 03/25/2009 | CN101391162A UV water-filter control device and water pressure switch group |
| 03/25/2009 | CN100473252C High energy-saving electronic regulating control equipment |
| 03/25/2009 | CN100473251C Device and method for light-modulating control of fluorescent lamp |
| 03/25/2009 | CN100473250C Discharge lamp lighting device and lighting apparatus |
| 03/25/2009 | CN100473249C Starting method and starting apparatus for high pressure discharge lamp and high pressure discharge lamp |
| 03/24/2009 | CA2405398C Electronic ballast and method for arc straightening |
| 03/19/2009 | WO2009034969A1 Backlighting device and display device provided with same |
| 03/19/2009 | WO2009034798A1 Discharge lamp lighting device |
| 03/19/2009 | WO2009034065A1 Colour temperature control of flash units |
| 03/19/2009 | US20090074397 Electronic apparatus, lighting apparatus and method of calculating electric quantity thereof |
| 03/19/2009 | US20090072765 Method for Controlling Multi-colored Light Fixtures |
| 03/19/2009 | US20090072759 Method for dimming multiple lamps |
| 03/19/2009 | US20090072754 Dc-ac converter, controller ic therefor, and electronic apparatus utilizing such dc-ac converter |
| 03/19/2009 | US20090072753 Fluorescent tube, a method of driving the fluorescent tube, an illuminating device for display device, and a display device having the illuminating device |
| 03/19/2009 | US20090072748 Backlight control circuit having a duty ratio determining unit and method for controlling lighting of a lamp using same |
| 03/19/2009 | US20090072746 Resonant ignitor circuit for lamp with a variable output capacitance ballast |
| 03/18/2009 | EP2036408A1 Method and system for operating a discharge lamp such as to detect defective operation of the lamp |
| 03/18/2009 | CN201210767Y Energy saving lamp having automatic induction control function |
| 03/18/2009 | CN201210766Y Filament pre-warming control circuit for series resonance electric ballast |
| 03/18/2009 | CN201210765Y High frequency constant current power source converter for neon light |
| 03/18/2009 | CN201210764Y Electric power circuit for high-frequency non-electrode lamp |
| 03/18/2009 | CN101390452A Step-up driver with minimal switching frequency |
| 03/18/2009 | CN101389177A Light regulating circuit |
| 03/18/2009 | CN101389176A Backlight control circuit and controlling method thereof |
| 03/18/2009 | CN101389175A Data line driving circuit, electro-optical apparatus, and electronic apparatus |
| 03/18/2009 | CN101389174A Inverter and control circuit, control method and luminescent device using the same |
| 03/18/2009 | CN101389173A Current monitoring system for florescent lamp and controlling method thereof |
| 03/18/2009 | CN100470615C Plasma display panel driver, driving method thereof, and plasma display device |
| 03/17/2009 | US7504782 Discharge lamp lighting apparatus and projector |
| 03/12/2009 | WO2009030335A1 Control circuit for the synchronised or alternate triggering of at least two flash devices |
| 03/12/2009 | WO2009030266A1 Temperature control for a discharge lamp |
| 03/12/2009 | WO2008132662A3 Method and ballast for operating a gas discharge lamp |
| 03/12/2009 | WO2008072136A3 Method and device for driving a gas discharge lamp |
| 03/12/2009 | US20090067159 Safety harness |
| 03/12/2009 | US20090066265 Inverter |
| 03/12/2009 | US20090066264 High-voltage high-power constant current led driver device |
| 03/12/2009 | US20090066261 Multi-color backlight control circuit and multi-color backlight control method |
| 03/12/2009 | US20090066258 Streelight monitoring and control |
| 03/12/2009 | US20090066253 Operating unit and lamp |
| 03/12/2009 | DE10340198B4 Schaltungsanordnung zum Dimmen von Gasentladungslampen und Verfahren zu ihrem Betrieb Circuitry for dimming of gas discharge lamps and method for its operation |
| 03/12/2009 | DE102007043093A1 Farbtemperatursteuerung von Blitzgeräten Color temperature control of flash units |
| 03/11/2009 | EP2034510A1 Light source device |
| 03/11/2009 | EP2033500A1 Method and device for driving a lamp |
| 03/11/2009 | EP2033499A1 Method for detecting the cutting off signal of bjt in an electronic ballast and the electronic ballast |
| 03/11/2009 | EP1825721A4 Method for driving of a fluorescent lighting and a ballast stabilizer circuit for performing the same |
| 03/11/2009 | EP1563717B1 Circuit arrangement for operating a high pressure discharge lamp |
| 03/11/2009 | CN201207752Y On-line integration type light modulation control device for air discharge lamp |
| 03/11/2009 | CN201207751Y Energy-saving controller for digital controlled road lamp |
| 03/11/2009 | CN201207750Y Electricity saving device for large power road lamp |
| 03/11/2009 | CN201207749Y EEFL electric power having protection |
| 03/11/2009 | CN201207748Y Electric ballast |
| 03/11/2009 | CN201207747Y Electronic trigger for high-voltage sodium lamp |
| 03/11/2009 | CN201207746Y Full digital automobile rectifier |
| 03/11/2009 | CN201207744Y Impulsator for strobe tube composed of bidirectional trigger diode |
| 03/11/2009 | CN101385400A Method and driving unit for driving a gas discharge lamp |
| 03/11/2009 | CN101385399A Circuit arrangement and method for operating a high-pressure discharge lamp |
| 03/11/2009 | CN101385398A Discharge lamp lighting device, lighting system and method |
| 03/11/2009 | CN101385397A Circuit arrangement for providing an operating DC voltage |
| 03/11/2009 | CN101385394A Lighting device with controllable light intensity |
| 03/11/2009 | CN101384127A Energy-saving light modulating device with unit power factor |
| 03/11/2009 | CN101384126A Backlight lightness grade regulating device based on battery remaining capacity regulation |
| 03/11/2009 | CN101384125A Electronic stabilizer for illuminating device |
| 03/11/2009 | CN101384124A Transformer for driving multiple lamp tubes |
| 03/11/2009 | CN101384123A Arc-cylindrical color separation controllable fluorescent light source for visual selection of fruit and vegetable |
| 03/11/2009 | CN101383263A Metal halide lamps |
| 03/11/2009 | CN101382680A Control method of backlight source and displaying framework thereof |
| 03/11/2009 | CN100469214C Light driving circuit for effective control part temperature in fluorescent lamp |
| 03/11/2009 | CN100469213C Power supply and/or ballast system controlled by desired load power spectrum |
| 03/11/2009 | CN100469212C Back light assembly and liquid crystal display equipment using the same back light assembly |
| 03/11/2009 | CN100469211C Inverter drive and liquid crystal display containing the same |
| 03/11/2009 | CN100469210C Ballasting circuit |
| 03/11/2009 | CN100469207C Light driving device, back light assembly and liquid crystal display device using the same |
| 03/11/2009 | CN100469117C Lighting system provided with a sequential colour filtering and a high-pressure discharge lamp |
| 03/11/2009 | CN100468941C Resonance converter and method for driving variable loads |
| 03/11/2009 | CN100468939C DC/AC conversion driving circuit |
| 03/11/2009 | CN100468184C Strobe apparatus and its manufacturing method |
| 03/11/2009 | CN100467943C Socket with transformer and high pressure discharge lamp |
| 03/10/2009 | US7502034 Light system manager |
| 03/10/2009 | US7502009 Method and apparatus for controlling operation of lamps |
| 03/10/2009 | US7501738 Piezoelectric transducer drive circuit and cold cathode tube lighting device having the same |
| 03/05/2009 | WO2009029334A2 Thermal foldback for linear fluorescent lamp ballasts |
| 03/05/2009 | WO2009029333A1 Risk of shock protection circuit |
| 03/05/2009 | WO2009029174A1 Metal halide lamp ballast controlled by remote enable switched bias supply |
| 03/05/2009 | WO2009028321A1 Discharge lamp operating device |
| 03/05/2009 | WO2009028290A1 Discharge lamp operating device |
| 03/05/2009 | WO2009027727A1 Lighting controllers |
| 03/05/2009 | WO2009007706A3 Improvements in or relating to gas discharge lamps |
| 03/05/2009 | US20090058325 Group control type fluorescent, led and/or halide lighting control system |
| 03/05/2009 | US20090058321 Lamp driving apparatus and control method thereof |
| 03/05/2009 | US20090058319 Electron source and method for the operation thereof |
| 03/05/2009 | US20090058318 Driving Device for Providing Light Dimming Control of Light-Emitting Element |
| 03/05/2009 | US20090058316 Magnetic ballast |
| 03/05/2009 | US20090058315 Control module |