| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 08/02/2006 | CN1268176C Device for operating a discharge lamp with high luminance |
| 08/02/2006 | CN1268175C Drive circuit device for lamp |
| 08/02/2006 | CN1268174C 镇流器 Ballast |
| 08/01/2006 | US7084587 Apparatus and method for control of high intensity discharge lighting |
| 08/01/2006 | US7084586 Discharge lamp lighting apparatus and discharge lamp apparatus |
| 08/01/2006 | US7084585 Discharge lamp lighting apparatus |
| 08/01/2006 | US7084584 Low frequency inverter fed by a high frequency AC current source |
| 08/01/2006 | US7084583 External electrode fluorescent lamp, back light unit using the external electrode fluorescent lamp, LCD back light equipment using the back light unit and driving device thereof |
| 08/01/2006 | US7084582 Electronic ballast system having emergency lighting provisions and electronic chip |
| 08/01/2006 | US7084581 Device and method for controlling a gas discharge lamp, and lighting system with gas discharge lamp and control device |
| 08/01/2006 | US7084580 Discharge lamp lighting circuit |
| 08/01/2006 | US7084578 System and method for preventing acoustic arc resonance in a HID lamp |
| 08/01/2006 | US7084574 Fluorescent light power source for supplying power to an external device |
| 08/01/2006 | US7084571 Vehicular lamp |
| 08/01/2006 | US7084562 Electrodeless discharge lamp |
| 08/01/2006 | US7083309 Fluorescent lamp tube having integrated electronic ballast |
| 08/01/2006 | CA2198656C Transformer |
| 07/27/2006 | WO2006077028A1 Method and device for dimming lighting control devices to a predefined level |
| 07/27/2006 | US20060167572 Device for controlling a plurality of lamps |
| 07/27/2006 | US20060164869 Inverter |
| 07/27/2006 | US20060164842 Discharge lamp lighting device and illiminator |
| 07/27/2006 | US20060164025 Lamp driving apparatus for vehicle |
| 07/27/2006 | US20060164024 Current resonance type inverter circuit and power controlling method |
| 07/27/2006 | US20060164023 Circuit for operating high-pressure discharge lamps |
| 07/27/2006 | US20060164022 Illumination system having cold cathode started, illumination controlled gas discharge lamps in series |
| 07/27/2006 | DE102005008996A1 Dimmen von Leuchtmittelbetriebsgeräten auf vorab definierte Pegel Dimming of lamps and control gear on pre-defined level |
| 07/27/2006 | DE102005003450A1 Verfahren und Vorrichtung zum Regeln und Steuern einer Wendelheizung für Lampen Method and apparatus for regulating and controlling a heating coil for lamps |
| 07/27/2006 | DE102005002974A1 Erweiterte Tastersteuerung von Leuchtmittelbetriebsgeräten Advanced button control of lamps and control gear |
| 07/27/2006 | DE102005002563A1 Lighting fixture for e.g. tunnel lighting, has ballast for operating lamp, and latent heat storage unit containing phase changing material integrated in fixture for protecting ballast from heat and for partly and outwardly shielding ballast |
| 07/26/2006 | EP1684555A2 Current-mode resonant inverter circuit |
| 07/26/2006 | EP1684554A2 Current-mode resonant inverter circuit for discharge lamp |
| 07/26/2006 | EP1684553A1 High-pressure discharge lamp operation device and illumination instrument |
| 07/26/2006 | EP1684552A2 Extended toggle-switch control for light source control devices |
| 07/26/2006 | EP1683399A1 Lighting fixture and method for operating same |
| 07/26/2006 | EP1683398A1 Thermal protection for lamp ballasts |
| 07/26/2006 | EP1683397A2 Method and apparatus for controlling visual enhancement of lighting devices |
| 07/26/2006 | EP1683396A2 Method and apparatus for optimizing power efficiency in light emitting device arrays |
| 07/26/2006 | EP1683256A1 Dimmable ballast with resistive input and low electromagnetic interference |
| 07/26/2006 | EP0940061B1 Distributed network control of a dimmable fluorescent lighting system |
| 07/26/2006 | EP0739532B1 Method and apparatus for controlling lamp intensity |
| 07/26/2006 | CN2800695Y Head lamp controller of railway locomotive |
| 07/26/2006 | CN2800694Y Multi-tube balancing transformer and drive circuit |
| 07/26/2006 | CN2800693Y Electronic ballast of high strength gas discharge lamp |
| 07/26/2006 | CN2800692Y Neon light program transformer |
| 07/26/2006 | CN1809242A Digital synthesis method and control system for color light source |
| 07/26/2006 | CN1809241A Cold cathode tube control device and method for adjustment of pulse width of working resonant frequency |
| 07/26/2006 | CN1809240A Lamp tube starting apparatus |
| 07/26/2006 | CN1809239A Integrated circuit for lamp heating and dimming control |
| 07/26/2006 | CN1809238A Luminaire |
| 07/26/2006 | CN1809237A Electronic ballast |
| 07/26/2006 | CN1808875A Method and apparatus for DC to AC power conversion for driving discharge lamps |
| 07/26/2006 | CN1808219A Apparatus and method for protecting light source of image device |
| 07/26/2006 | CN1266986C Electroncic filament-switching preheating circuit of fluorescence discharge lamp ballost |
| 07/26/2006 | CN1266735C Ignition method for high-voltage discharger lamp and ignition device |
| 07/26/2006 | CN1266713C Operation device for light source with low cost coil component |
| 07/25/2006 | US7081721 Projection type video display apparatus |
| 07/25/2006 | US7081719 Computer power supply with a display function |
| 07/25/2006 | US7081718 Power supply circuit for flash discharge tube |
| 07/25/2006 | US7081709 Method and apparatus for lighting a discharge lamp |
| 07/25/2006 | CA2533374A1 Method and apparatus for the closed-loop and open-loop control of filament heating for lamps |
| 07/20/2006 | WO2006075428A1 Discharge lamp lighting apparatus |
| 07/20/2006 | WO2006074629A1 Electronic ballast |
| 07/20/2006 | WO2005101964A3 Hot cathode fluorescent lamp without filament |
| 07/20/2006 | WO2005101920A3 A primary side current balancing scheme for multiple ccf lamp operation |
| 07/20/2006 | WO2005089473A3 Method for generating a discharge in high pressure gases |
| 07/20/2006 | US20060158136 Method and apparatus for DC to AC power conversion for driving discharge lamps |
| 07/20/2006 | US20060158135 Electrical circuit for fluorescent lamps |
| 07/20/2006 | US20060158134 Electronic light generating element light bulb |
| 07/20/2006 | US20060158133 Method and device for driving a matal halide lamp |
| 07/20/2006 | US20060158132 Apparatus of driving light source for display device |
| 07/20/2006 | US20060158131 Ballast for a discharge lamp |
| 07/20/2006 | US20060158125 Lighting unit |
| 07/20/2006 | DE202006006288U1 Vorschaltgerät für eine elektrische Lampe Ballast for an electric lamp |
| 07/20/2006 | DE202006005212U1 Lighting system with dielectric barrier discharge lamp has flat strip two wire high voltage cable connecting high voltage generator to lamp electrodes |
| 07/20/2006 | DE112005000049T5 Entladungslampen-Vorschaltgerätevorrichtung Discharge lamp Vorschaltgerätevorrichtung |
| 07/20/2006 | DE102005001767A1 Vorrichtung zum gesteuerten Schalten einer Lampe, Verwendung der Vorrichtung und entsprechendes Betriebsverfahren Device for the controlled switching of a lamp, using the apparatus and corresponding method of operation |
| 07/20/2006 | DE102005001326A1 Elektronisches Vorschaltgerät (EVG) Electronic ballast (EVG) |
| 07/20/2006 | CA2594279A1 Electronic ballast (eb) |
| 07/19/2006 | EP1680947A1 Ballast |
| 07/19/2006 | EP1442638B1 Circuit arrangement |
| 07/19/2006 | CN2798503Y High performance electronic ballast suitable for various voltage |
| 07/19/2006 | CN2798502Y Modulating circuit suitable for various voltage time base integrated circuit |
| 07/19/2006 | CN2798501Y Controlling circuit for time base integrated circuit outputting pulse amplitude |
| 07/19/2006 | CN2798500Y Improved electronic ballast for fluorescent lamp |
| 07/19/2006 | CN2798499Y Safety energy saving lamp for machine tool |
| 07/19/2006 | CN2798498Y Electronic ballast with low ripple wave outputting high powr factor |
| 07/19/2006 | CN2798497Y Starter for double wire type high light gaseous discharging lamp |
| 07/19/2006 | CN2798496Y Shell for electronic ballast with excellent radiating effect |
| 07/19/2006 | CN2798495Y Case for electronic ballast with excellent radiating effect |
| 07/19/2006 | CN2798494Y Improved shell structure for electronic ballast |
| 07/19/2006 | CN1806472A Projection system |
| 07/19/2006 | CN1805648A Digital dimming energy-saving method and its control system |
| 07/19/2006 | CN1805647A Constant power control method and apparatus for electronic ballast of high intensity gas discharge lamp |
| 07/19/2006 | CN1805646A High beam/low beam xenon lamp switching control circuit |
| 07/19/2006 | CN1805645A Electronic ballast applicable to 400V/600W high voltage sodium lamps for agricultural use |
| 07/19/2006 | CN1805644A Current-mode resonant inverter circuit for discharge lamp |
| 07/19/2006 | CN1805643A Starter circuit of pen type mercury lamp |
| 07/19/2006 | CN1805642A Igniter for a high pressure discharge lamp and a high pressure discharge lamp with a igniter also the operation for a high pressure discharge lamp. |
| 07/19/2006 | CN1805641A Removable combined electronic ballast component and its electronic ballast system composed of the electronic ballast component |
| 07/19/2006 | CN1805640A Current-mode resonant inverter circuit |