| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 03/06/2013 | CN102958261A LC capacitance-inductance ballast for high voltage sodium lamp |
| 03/06/2013 | CN102958252A 点亮装置 Lighting device |
| 03/06/2013 | CN102958249A Device and method for using high efficiency ballasted lamps with electronic transformer |
| 03/06/2013 | CN102958219A Device and method using power switch for stepless dimming |
| 03/06/2013 | CN102958215A High-intensity energy-saving two-dimensional light source |
| 03/06/2013 | CN101930898B Indirect preheating starting discharge lamp and device thereof |
| 03/06/2013 | CN101873756B Electronic and intelligent light-modulating electricity-saving ballast and control method thereof |
| 03/06/2013 | CN101766062B Electronic ballast having adaptive frequency shifting |
| 03/06/2013 | CN101627665B Circuit arrangement and method for operating a discharge lamp |
| 03/06/2013 | CN101600286B HID lamp electronic ballast |
| 03/06/2013 | CN101448354B Electronic ballast of HID lamps |
| 03/06/2013 | CN101379890B Light source module |
| 03/06/2013 | CN101254964B Ultraviolet irradiation system and water quality monitoring instrument |
| 03/05/2013 | US8390561 Apparatus for driving lamp and liquid crystal display device having the same |
| 03/05/2013 | US8390212 Light-emitting element driving control circuit |
| 03/05/2013 | US8390210 Light driver circuit device and backlight device |
| 03/01/2013 | DE202012012473U1 Vorrichtung zur Ansteuerung einer Leuchtstofflampe Apparatus for driving a fluorescent lamp |
| 02/28/2013 | WO2013027258A1 Cold cathode fluorescent lamp illumination device |
| 02/28/2013 | WO2013026906A1 Low-pressure plasma light source |
| 02/28/2013 | WO2013026078A1 System for actuating and operating fluorescent lamps |
| 02/28/2013 | US20130050662 Light source device, method of driving discharge lamp, and projector |
| 02/28/2013 | US20130050661 Light source device, method of driving discharge lamp, and projector |
| 02/28/2013 | US20130049639 Light source apparatus |
| 02/28/2013 | US20130049638 Method for identifying rated power of hid lamp |
| 02/28/2013 | US20130049630 Method for operating a high-pressure discharge lamp on the basis of a low frequency square wave operation and a partially high frequency operation for arc stabilization and color mixing |
| 02/28/2013 | US20130049629 Electronic ballast |
| 02/28/2013 | US20130049627 Segmented electronic arc lamp ballast |
| 02/28/2013 | US20130049625 Discharge-Lamp Lighting Device |
| 02/28/2013 | US20130049619 Device and Method for Using High Efficiency Ballasted Lamps with Electronic Transformer |
| 02/28/2013 | DE102011111067A1 Niederdruckplasma-Lichtquelle Low pressure plasma light source |
| 02/27/2013 | EP2561726A1 Pulsed operation of a discharge lamp |
| 02/27/2013 | DE202013000302U1 Steuer- und/oder Regeleinrichtung zum Betreiben einerGasentladungslampe eines Kraftfahrzeugscheinwerfers und Kraftfahrzeugscheinwerfer mit einer solchen Steuer- und/oder Regeleinrichtung Control and / or regulating device for operating a gas discharge lamp of a motor vehicle headlight and motor vehicle headlamps with such control and / or regulating device |
| 02/27/2013 | CN202759655U General electronic ballast |
| 02/27/2013 | CN1845650B Display tube frequency control system and its method |
| 02/27/2013 | CN102948263A Circuit arrangement for operating discharge lamp |
| 02/27/2013 | CN102946681A LC ballast for high pressure sodium lamp |
| 02/27/2013 | CN101720161B Plasma illuminating lamp control device |
| 02/27/2013 | CN101331807B Circuit arrangement and method for the operation of high-pressure gas discharge lamps |
| 02/26/2013 | US8384305 LED driver with direct AC-DC conversion and control, and method and integrated circuit therefor |
| 02/26/2013 | US8384302 Operating device for operating a light source, in particular LED |
| 02/26/2013 | US8384301 Light source system capable of dissipating heat |
| 02/26/2013 | US8384300 Integrated RF electrodeless plasma lamp device and methods |
| 02/26/2013 | US8384299 Solid state LED bridge rectifier light engine |
| 02/26/2013 | US8384298 Resonant inverter with sleep circuit |
| 02/26/2013 | US8384297 Method of controlling an operating frequency of an electronic dimming ballast |
| 02/26/2013 | US8384296 High pressure discharge lamp lighting apparatus and projector |
| 02/26/2013 | US8384293 Lamp brightness remote controlling device |
| 02/26/2013 | US8382327 Light tube and power supply circuit |
| 02/26/2013 | CA2750508A1 A high pressure discharge lamp ballast and a method for driving a high pressure discharge lamp ballast |
| 02/26/2013 | CA2525067C High intensity discharge lamp control |
| 02/25/2013 | CA2786199A1 Lighting device |
| 02/25/2013 | CA2786198A1 Discharge-lamp lighting device |
| 02/22/2013 | CA2750718A1 Vehicle interface for a high intensity discharge headlamp assembly |
| 02/21/2013 | WO2013025548A1 Lighting device control using variable inductor |
| 02/21/2013 | WO2013023609A1 Light engine with led switching array |
| 02/21/2013 | US20130043806 Driver circuit particularly suited for lighting devices |
| 02/21/2013 | US20130043804 Power supply system |
| 02/21/2013 | US20130043790 System And Apparatus For Cathodoluminescent Lighting |
| 02/21/2013 | DE102011081211A1 Circuit arrangement for alternative operation of high-pressure discharge lamp and semiconductor light source lamp used in motor vehicle, has control unit that enters appropriate subroutine with reference to properties of connected lamp |
| 02/20/2013 | EP2560465A1 Preheating circuit applied to fluorescent lamp electronic ballast |
| 02/20/2013 | DE202012011941U1 Vorrichtung zur synchronen Taktung von Leuchtmitteln Apparatus for synchronous clocking of bulbs |
| 02/20/2013 | CN202750322U Preheating electronic ballast control chip |
| 02/20/2013 | CN202750321U Filament preheating circuit module provided with negative temperature coefficient thermistors |
| 02/20/2013 | CN202750320U Single lithium battery-powered high-efficiency fluorescent lamp driver |
| 02/20/2013 | CN202750319U Electronic ballast for high-strength discharge lamp |
| 02/20/2013 | CN202750318U Energy saving lamp provided with reverse-phase blocking triode thyristor and protection function |
| 02/20/2013 | CN202750317U Wide voltage active power-factor correction energy saving lamp |
| 02/20/2013 | CN202750316U Electrodeless lamp with long service life |
| 02/20/2013 | CN202750315U Magnetron filament power supply circuit |
| 02/20/2013 | CN202750314U Driving apparatus and light emitting apparatus |
| 02/20/2013 | CN202750313U Mining lamp electrical box |
| 02/20/2013 | CN202750278U Energy-saving lamp switching device and switching-type energy-saving lamp power supply device |
| 02/20/2013 | CN102939798A Control apparatus for circuit arrangement for operating light source, as well as system comprising circuit arrangement and circuit arrangement, as well as method for operating light source |
| 02/20/2013 | CN102939428A Solar energy fence post structure |
| 02/20/2013 | CN102938967A HID (High Intensity Discharge) electronic ballast |
| 02/20/2013 | CN102938966A High-frequency and long-life intelligent xenon flash lamp controller |
| 02/20/2013 | CN102938965A Double-lamp intelligent switching electronic ballast |
| 02/20/2013 | CN102938964A Multichannel plasma light source |
| 02/20/2013 | CN101730363B Flash lamp control circuit |
| 02/20/2013 | CN101730362B Flash lamp control circuit |
| 02/20/2013 | CN101631415B Electronic rectifier of fluorescent lamp |
| 02/20/2013 | CN101427612B An electronic driver for a fluorescent lamp |
| 02/20/2013 | CN101304626B Ballast with ignition voltage control |
| 02/19/2013 | US8378583 Feedforward control of semiconductor light sources |
| 02/19/2013 | US8378582 Plasma lighting system |
| 02/19/2013 | US8378579 Ballast circuit for a gas discharge lamp with a control loop to reduce filament heating voltage below a maximum heating level |
| 02/14/2013 | WO2013021565A1 High-voltage discharge lamp lighting device and light source device |
| 02/14/2013 | WO2013020305A1 Led display system |
| 02/14/2013 | US20130038844 Light source device, method of driving discharge lamp, and projector |
| 02/14/2013 | US20130038843 High pressure discharge lamp ballast and a method for driving a high pressure discharge lamp ballast |
| 02/14/2013 | US20130038245 Fast reigntion of a high intensity discharge lamp |
| 02/14/2013 | US20130038238 Pulsed operation of a discharge lamp |
| 02/14/2013 | US20130038237 Ballasted lamp socket for a compact fluorescent lamp |
| 02/14/2013 | US20130038231 Method and apparatus of controlling discharge lamp and discharge lamp system |
| 02/14/2013 | US20130038223 Image Display Device and Light Emission Timing Control Method |
| 02/14/2013 | US20130038220 Method of driving an arc-discharge lamp |
| 02/14/2013 | US20130038214 Electronic ballast capable of self-protection at natural or premature end of life of fluorescent light tube |
| 02/14/2013 | DE202013000831U1 Transformator Transformer |
| 02/14/2013 | DE102011111065B3 Illumination device for cooking area of e.g. oven during baking application, has luminous elements with lamp emitting electromagnetic radiation in visible region, where emission of electromagnetic radiation takes place via plasma discharge |
| 02/14/2013 | DE102011080786A1 Circuitry for determining voltage of lamp e.g. high-pressure gas discharge lamp, has transistors that convert scaled lamp voltage into specific voltage which is reduced at output of transistors over resistor |