| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 11/26/2008 | CN201155667Y CCFL illuminating system |
| 11/26/2008 | CN101313634A Projector, and lighting method of light source unit of projector |
| 11/26/2008 | CN101312609A Flash control circuit |
| 11/26/2008 | CN101312608A Illumination equipment |
| 11/26/2008 | CN101311817A Image projection apparatus and operation method thereof |
| 11/26/2008 | CN101311793A Backlight module |
| 11/26/2008 | CN100438716C Frequency-changing light-regulating control system for daylight lamp |
| 11/26/2008 | CN100438715C Driving apparatus of gas discharge lamp |
| 11/26/2008 | CN100438714C Ballast circuit arrangement |
| 11/26/2008 | CN100437414C Power supply device and vehicle lamp |
| 11/26/2008 | CN100437410C Power redgulator employing sinusoidal refferene |
| 11/26/2008 | CN100437409C Single-stage pfc + ballast control circuit/general purpose power converter |
| 11/26/2008 | CN100437235C External electrode fluorescent lamp drive circuit and protection method for proventing overdrive |
| 11/25/2008 | US7457536 Flash device |
| 11/25/2008 | US7456819 Lamp driving device, backlight assembly and liquid crystal display apparatus having the same |
| 11/25/2008 | US7456816 Lamp frequency control system for display and method for controlling lamp frequency |
| 11/25/2008 | US7456589 Light output modulation for data transmission |
| 11/25/2008 | US7456586 Voltage controlled light source and image presentation device using the same |
| 11/25/2008 | US7456584 Light emitting element driving apparatus, method of driving a light emitting element and computer readable recording medium |
| 11/25/2008 | US7456582 Circuit and method for driving a load, in particular a high-intensity discharge lamp, and a control unit for said circuit |
| 11/20/2008 | WO2008140932A1 Symmetrical rf power supply for inductively coupled electrodeless lamps |
| 11/20/2008 | WO2008140916A2 Electronic ballast having a boost converter with an improved range of output power |
| 11/20/2008 | WO2008139663A1 Display device illuminating apparatus and display device |
| 11/20/2008 | WO2008138391A1 Circuit arrangement and method for the operation of at least one discharge lamp |
| 11/20/2008 | WO2008138223A1 A dimming control signal transmission circuit of the electronic dimming ballast |
| 11/20/2008 | WO2007133611A3 Workspace lighting system |
| 11/20/2008 | US20080285321 DC-AC Converter and Method of Supplying AC Power |
| 11/20/2008 | US20080284357 Ballast control ic with minimal internal and external components |
| 11/20/2008 | US20080284356 Remote Dimmable Energy-Saving Device for Fluorescent Lamps |
| 11/20/2008 | US20080284355 Method and Driving Circuit for Operating a Hid Lamp |
| 11/20/2008 | US20080284352 Control of Delivery of Current Through One or More Discharge Lamps |
| 11/20/2008 | US20080284349 Backlight units and display devices |
| 11/20/2008 | US20080284347 Lighting control system having a security system input |
| 11/20/2008 | US20080284344 Power supply unit for gas discharge processes |
| 11/20/2008 | US20080284343 Light emitting diode lamp, light emitting diode assembly, and light emitting diode string |
| 11/20/2008 | US20080284341 Photo detector and method for forming thereof |
| 11/20/2008 | US20080284340 Light weight automotive HID igniter |
| 11/20/2008 | DE112005000187T5 Volldigitales Abblendvorschaltgerät für eine Leuchtstofflampe Fully digital Abblendvorschaltgerät for a fluorescent lamp |
| 11/20/2008 | CA2687294A1 Electronic ballast having a boost converter with an improved range of output power |
| 11/20/2008 | CA2684794A1 Symmetrical rf power supply for inductively coupled electrodeless lamps |
| 11/19/2008 | EP1993328A1 Ballast with filament heating and ignition control |
| 11/19/2008 | EP1993327A2 Liquid crystal television and backlight unit |
| 11/19/2008 | EP1992205A1 Method and device for driving a discharge lamp |
| 11/19/2008 | EP1992204A1 Discharge lamp lighting device, lighting system and method |
| 11/19/2008 | EP1992203A1 Electronic ballast and method for operating an electrical lamp |
| 11/19/2008 | EP1862038B1 Ignition circuit with increased fail-safety |
| 11/19/2008 | EP1761832B1 Method and circuit for active power factor correction |
| 11/19/2008 | EP1741320B1 Circuit arrangement for operating high pressure discharge lamps and operating method for a high pressure discharge lamp |
| 11/19/2008 | EP1377888B1 Digital dimming fluorescent ballast |
| 11/19/2008 | CN201153344Y Intelligent light modulating electronic ballast |
| 11/19/2008 | CN201153343Y HID electronic ballast constant power control system controlled by microcontroller |
| 11/19/2008 | CN201153342Y Wire plugging double needle for ballast |
| 11/19/2008 | CN201153337Y Touch stepless light adjusting switch |
| 11/19/2008 | CN201152484Y Multi-lamp type back light device |
| 11/19/2008 | CN101310569A Ac switch with zero off current for el panel |
| 11/19/2008 | CN101310568A Fluorescent lamp operation device |
| 11/19/2008 | CN101310364A 投影机 Projector |
| 11/19/2008 | CN101309545A Light modulating energy-saving lamp suitable for one-touch control |
| 11/19/2008 | CN101309544A Power-supply apparatus and method for multiple gas discharge lamp electronic ballasts |
| 11/19/2008 | CN101309543A Three-phase centralized controlled electric ballast |
| 11/19/2008 | CN101309542A Circuit for detecting current zero-crossing of voltage dropping inductor by voltage of the same |
| 11/19/2008 | CN101309541A Low-frequency electronic rectifier for metal halogenate lamp |
| 11/19/2008 | CN101309540A Electronic trigger and HID light |
| 11/19/2008 | CN101309539A Ignition pulse generating circuit for electronic rectifier of metal halogenate lamp |
| 11/19/2008 | CN101309538A Control method for electronic ballast of HID light without electrolytic capacitor |
| 11/19/2008 | CN101307886A Analog-U shaped lamp tube structure for improving backlight module electric current uniformity and the method |
| 11/19/2008 | CN101307875A LED headlight for vehicles |
| 11/19/2008 | CN100435466C DC-AC converter parallel operation system and controller IC therefor |
| 11/18/2008 | US7453216 Current resonance type inverter circuit and power controlling method |
| 11/18/2008 | US7453215 Illumination system having cold cathode started, illumination controlled gas discharge lamps in series |
| 11/18/2008 | US7453214 Lamp-operating unit and low-pressure mercury discharge lamp |
| 11/18/2008 | CA2631075A1 Lighting apparatus capable of protecting eyesight |
| 11/18/2008 | CA2334879C Discharge lamp with a base |
| 11/18/2008 | CA2280302C Low-resistance bipolar bridge circuit |
| 11/17/2008 | CA2685259A1 Bulb type detector for dimmer circuit and resistance and short circuit detection |
| 11/13/2008 | WO2008136154A1 Lighting device for display apparatus and display apparatus |
| 11/13/2008 | WO2008135938A2 Method and circuit for pulsed fluorescent lamp operation |
| 11/13/2008 | WO2008135089A1 Method for igniting and starting high-pressure discharge lamps |
| 11/13/2008 | WO2008135086A1 Circuit arrangement, and method for the operation of a fluorescent lamp |
| 11/13/2008 | US20080278095 Compact fluorescent lamp with outer envelope and method for manufacturing |
| 11/13/2008 | US20080278094 Method for Driving a Lamp in a Lighting System and a Control Apparatus for Driving Such Lamp |
| 11/13/2008 | US20080278093 Backlight module with light tubes and liquid crystal display with same |
| 11/13/2008 | US20080278091 Method and Circuit for Driving Back a Light Emitter of a Display Apparatus |
| 11/13/2008 | US20080278088 Ballast With Ignition Voltage Control |
| 11/13/2008 | US20080278085 Program Start Ballast |
| 11/13/2008 | US20080278083 Circuit Arrangement |
| 11/13/2008 | US20080278081 Signaling module, liquid container, recording apparatus, and control method |
| 11/13/2008 | US20080278080 Ballast With Filament Heating And Ignition Control |
| 11/12/2008 | EP1991036A1 Method of and circuit for driving a discharge lamp |
| 11/12/2008 | EP1991035A2 Control for the switch of a H-bridge switch for operating a high pressure gas discharge light in motor vehicles |
| 11/12/2008 | EP1991034A1 Discharge lamp lighting circuit and electronic device |
| 11/12/2008 | EP1991033A2 Program start ballast |
| 11/12/2008 | EP1991032A2 Ballast with ignition voltage control |
| 11/12/2008 | EP1989927A1 Method and driving unit for driving a gas discharge lamp |
| 11/12/2008 | CN101305445A Compact type fluorescent lamp |
| 11/12/2008 | CN101304628A Method for controlling start procedure of electric ballast of high-strength air discharge lamp |
| 11/12/2008 | CN101304627A Constant power control method for electric ballast of high-strength air discharge lamp |
| 11/12/2008 | CN101304626A Ballast with ignition voltage control |
| 11/12/2008 | CN101304174A Energy recovery system for alternating-current power supplier |
| 11/12/2008 | CN101303948A Electronic energy-saving lamp capable of altering tube body conveniently |