| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 12/03/2009 | WO2009146201A1 Intelligent illumination source particularly for machine vision systems |
| 12/03/2009 | WO2009145184A1 Discharge lamp lighting apparatus |
| 12/03/2009 | WO2009145145A2 Device for generating simulated solar light for solar battery characteristic measurement and method of generating simulated solar light |
| 12/03/2009 | WO2009145108A1 Device for operating discharge lamp, device for operating vehicle-mounted operating high-intensity discharge lamp, vehicle-mounted headlight, and vehicle |
| 12/03/2009 | WO2009145052A1 High-voltage discharge lamp operation device and illumination instrument |
| 12/03/2009 | WO2009145050A1 High-voltage discharge lamp lighting device and lighting fixture |
| 12/03/2009 | WO2009143671A1 Full digital high intensity xenon lamp controller and control method |
| 12/03/2009 | US20090296391 Solid state lamp lighting system |
| 12/03/2009 | US20090295309 Feedback control of lighting-emitting blocks in a display apparatus |
| 12/03/2009 | US20090295308 Method for Operating High-Pressure Lamps Without Hotstarting and Luminaire Having Two High-Pressure Discharge Lamps |
| 12/03/2009 | US20090295305 Led driver circuit |
| 12/03/2009 | US20090295304 Ballast with multilead wires |
| 12/03/2009 | US20090295303 Brightness control of fluorescent lamps |
| 12/03/2009 | US20090295302 Circuit Arrangement and Method for Operating a High-Pressure Discharge Lamp |
| 12/03/2009 | US20090295301 Self-exciting step-up converter |
| 12/03/2009 | US20090295300 Methods and apparatus for a dimmable ballast for use with led based light sources |
| 12/03/2009 | US20090295299 Switch-Off Time Regulation System for an Inverter for Driving a Lamp |
| 12/03/2009 | US20090295292 LED replacement for low voltage lamps |
| 12/03/2009 | DE102009018623A1 Lampenanordnungen, Lampensysteme und Verfahren zum Betreiben von Lampensystemen Lamp assemblies, the air systems and methods for operating lamp systems |
| 12/02/2009 | EP2129192A1 Discharge lamp operation device, illumination device, and liquid crystal display device |
| 12/02/2009 | EP2127501A1 Electronic operating device and method for the incremental dimming of a lighting device |
| 12/02/2009 | EP2127500A1 Single point sensing for end of lamp life, anti-arcing, and no-load protection for electronic ballast |
| 12/02/2009 | EP2127499A1 Circuit configuration for controlling at least one fluorescent lamp |
| 12/02/2009 | EP2127498A1 Evaluation device for the ignition energy of a discharge lamp |
| 12/02/2009 | EP2127497A1 Method and device for driving a gas discharge lamp |
| 12/02/2009 | EP2127496A1 Switching control for inverter startup and shutdown |
| 12/02/2009 | EP2127495A1 Circuit arrangement and method for adapting the output of high-pressure discharge lamps |
| 12/02/2009 | EP2127490A2 Device for controlling light sources |
| 12/02/2009 | EP2127399A1 Circuit arrangement and method for operating a high-pressure discharge lamp |
| 12/02/2009 | EP2126593A1 Device for measuring the current of a discharge lamp |
| 12/02/2009 | CN201355881Y Lower-harmonic electronic energy-saving lamp |
| 12/02/2009 | CN201355880Y PWM pulse control circuit of HID lamp electronic ballast |
| 12/02/2009 | CN201354968Y Energy-saving lamp |
| 12/02/2009 | CN101595766A Method and device for driving a gas discharge lamp |
| 12/02/2009 | CN101595765A Cold cathode tube lighting device |
| 12/02/2009 | CN101594728A Light-emitting device and dimming method |
| 12/02/2009 | CN101594727A Scanning backlight light tube driving method for liquid crystal display |
| 12/02/2009 | CN101594726A Monitoring device and method for lightbox equipment and lighting tube efficiency |
| 12/02/2009 | CN101594725A Electronic stabilizer of single-stage fluorescent lamps |
| 12/02/2009 | CN101594724A Power converting device |
| 12/02/2009 | CN101594723A Backlight driving circuit |
| 12/02/2009 | CN101594722A LCD backlight secondary start-up circuit |
| 12/02/2009 | CN100566500C An electronic ballast for fluorescence lamp using silicon controlLED dimmer for light control |
| 12/02/2009 | CN100566499C Method and device for driving a gas discharge lamp |
| 12/02/2009 | CN100566498C Circuit device for driving light source |
| 12/02/2009 | CN100566497C Circuit and method for operation of a gas discharge lamp |
| 12/02/2009 | CN100566496C Method for operating a low pressure discharge lamp |
| 12/02/2009 | CN100566495C Circuit arrangement for operating a high pressure discharge lamp |
| 12/02/2009 | CN100566494C Ballast circuit for operating a gas discharge lamp |
| 12/02/2009 | CN100566493C Electronic ballast with charge pump for active power factor calibration |
| 12/02/2009 | CN100566492C Fluorescent lamp drive device and mini self-ballasted fluorescent lamp having the same |
| 12/02/2009 | CN100566428C Projection system and method for operating a discharge lamp |
| 12/02/2009 | CN100566071C Capacitor charging circuit and method thereof |
| 12/02/2009 | CN100565780C Assembly of a fluorescent lamp and an extension means |
| 12/02/2009 | CN100565284C Backlight driving system for a liquid crystal display device |
| 12/01/2009 | USRE41015 Bicycle battery charger and speedometer circuit |
| 12/01/2009 | US7626342 High efficiency power controller for solid state lighting |
| 12/01/2009 | US7626340 Display apparatus and control method thereof |
| 12/01/2009 | CA2305021C Method for adjusting at least one operating parameter of an operating unit for electric lamps |
| 11/26/2009 | WO2009143015A1 Ignition for ceramic metal halide high frequency ballasts |
| 11/26/2009 | WO2009142996A2 Ceramic metal halide lamp bi-modal power regulation control |
| 11/26/2009 | WO2009142970A1 Microcontroller based ignition in high frequency ceramic metal halide lamps |
| 11/26/2009 | WO2009142092A1 Lighting device for high intensity discharge lamp, projector and lighting method for high intensity discharge lamp |
| 11/26/2009 | US20090289581 High intensity discharge lamp lighting device and lighting fixture |
| 11/26/2009 | US20090289579 Ambient led lighting system and method |
| 11/26/2009 | US20090289574 Single-stage electronic ballast for a fluorescent lamp |
| 11/26/2009 | US20090289573 Microcontroller based ignition in high frequency ceramic metal halide lamps |
| 11/26/2009 | US20090289572 Ignition for ceramic metal halide high frequency ballasts |
| 11/26/2009 | US20090289570 Method for supplying a gas discharge lamp, and a ballast circuit for such lamp |
| 11/26/2009 | US20090289569 Ccfl controller with multi-function terminal |
| 11/26/2009 | US20090289568 Circuit Arrangement and Method for Operating a Discharge Lamp |
| 11/26/2009 | US20090289566 Lighting Device for a Discharge Lamp |
| 11/26/2009 | US20090289565 Aggregate ignition method in high frequency metal halide lamps |
| 11/26/2009 | US20090289563 Circuit Arrangement and Method for Operating At Least One Dielectric Barrier Discharge Lamp |
| 11/26/2009 | US20090289561 Flicker-free led lamp and led string lamp |
| 11/26/2009 | US20090289557 Discharge lamp lighting device |
| 11/26/2009 | US20090289556 Discharge lamp lighting apparatus for lighting multiple discharge lamps |
| 11/26/2009 | US20090289555 Electron emission device comprising carbon nanotubes yarn and method for generating emission current |
| 11/26/2009 | CA2724509A1 Ignition for ceramic metal halide high frequency ballasts |
| 11/26/2009 | CA2724471A1 Ceramic metal halide lamp bi-modal power regulation control |
| 11/26/2009 | CA2724428A1 Microcontroller based ignition in high frequency ceramic metal halide lamps |
| 11/25/2009 | EP2124510A1 Method for controlling a phosphorescent light and light pre-switching device |
| 11/25/2009 | EP2124509A2 Gas discharge lamp ballast with power factor correction |
| 11/25/2009 | EP2123134A2 Multiple gas discharge lamp interleave trigger circuit |
| 11/25/2009 | EP2123133A1 Universal electronic ballast for operating hg-free and hg-containing discharge lamps |
| 11/25/2009 | EP2123132A1 Driving regulation method for bipolar transistors in electronic ballast and the device thereof |
| 11/25/2009 | CN201352879Y Control circuit of inverter applying pulse-width modulation dimming |
| 11/25/2009 | CN201352878Y Multi-lamp driving system |
| 11/25/2009 | CN201352877Y Electronic ballast for fluorescent lamp |
| 11/25/2009 | CN201352876Y High-intensity discharge lamp fixed output high-frequency ballast |
| 11/25/2009 | CN201352875Y 光源驱动装置 Light source driving means |
| 11/25/2009 | CN201352874Y Single-end connected replaceable electronic ballast |
| 11/25/2009 | CN201352873Y Electronic ballast for lamp |
| 11/25/2009 | CN201352867Y Lighting controller |
| 11/25/2009 | CN201352547Y Novel xenon discharge aircraft landing lamp |
| 11/25/2009 | CN201352542Y Energy-saving lamp |
| 11/25/2009 | CN201351826Y H-pipe energy-saving lamp amperite and H-pipe energy-saving lamp |
| 11/25/2009 | CN101588673A Method and device for controlling dimming of online integral-type gas discharge lamp |
| 11/25/2009 | CN101588672A Output protection circuit of Marx trigger of double-electrode gas switch |
| 11/25/2009 | CN101588671A Electronic ballast and detection circuit thereof for abnormal fluorescent tube |