| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 03/02/2004 | US6700331 Control circuit for dimming fluorescent lamps |
| 03/02/2004 | US6700328 Discharge lamp driver circuit designed to minimize radiation or noise |
| 03/02/2004 | US6698708 Gasket and mold assembly for producing plastic lenses |
| 02/26/2004 | WO2004017508A1 Inverter circuit, fluorescent bulb operating device, backlight device, and liquid crystal display device |
| 02/26/2004 | WO2003067929A3 Extraction of accessory power from a signal supplied to a luminaire from a phase angle dimmer |
| 02/26/2004 | US20040036426 Discharge lamp operating circuit with a current regulation circuit and a circuit for detection of the proximity to capacitive operation |
| 02/26/2004 | US20040036423 Radio frequency driven ultra-violet lamp |
| 02/26/2004 | DE10335614A1 Voltage supply system for high intensity gas discharge lighting system e.g. for vehicles, uses converter and inverter to generate reduced energy output |
| 02/25/2004 | CN1477916A Frequency-changing light-regulating control system for daylight lamp |
| 02/25/2004 | CN1477675A Cold cathode gas discharge luminescent device |
| 02/25/2004 | CN1477441A Flash lamp device for camera |
| 02/25/2004 | CN1140160C Driving device of cold-cathode fluorescent lamp using piezoelectric transformer |
| 02/25/2004 | CN1139947C Ballast for discharge lamp and method and apparatus for mfg. same |
| 02/24/2004 | US6696803 Self-oscillating electronic discharge lamp ballast with dimming control |
| 02/24/2004 | US6696802 Radio frequency driven ultra-violet lamp |
| 02/24/2004 | US6696801 Microwave excited ultraviolet lamp system with improved lamp cooling |
| 02/24/2004 | US6696800 High frequency electronic ballast |
| 02/24/2004 | US6696799 Diagnostic system for a strobe lamp and its operating circuit |
| 02/24/2004 | US6696798 Ballast circuit for operating a discharge lamp |
| 02/24/2004 | US6696797 Electronic ballast having valley frequency modulation for a gas discharge lamp |
| 02/24/2004 | US6696791 Method for starting a discharge lamp |
| 02/20/2004 | CA2396741A1 Electromagnetic induction elevator |
| 02/19/2004 | WO2004016050A1 Thermally-protected ballast for high-intensity-discharge lamps |
| 02/19/2004 | WO2004015734A1 Thermal protector mounting bracket and improved thermally-protected ballast |
| 02/19/2004 | WO2003098978B1 Electronic ballast for discharge lamps |
| 02/19/2004 | WO2003096135B1 Pwm controller with automatic low battery power reduction circuit and lighting device incorporating the controller |
| 02/19/2004 | WO2003058665A3 Air-cooled lamp, and article treatment system and method utilizing an air-cooled lamp |
| 02/19/2004 | WO2002096163A3 Fluorescent lamp circuit |
| 02/19/2004 | US20040032317 Thermal protector mounting bracket and improved thermally-protected ballast |
| 02/19/2004 | US20040032224 Discharge lamp circuit for ingition time control and overvoltage protection receivers |
| 02/19/2004 | US20040032223 Square wave drive system |
| 02/19/2004 | US20040032222 Three-way dimming CFL ballast |
| 02/19/2004 | US20040032219 Thermally-protected ballast for high-intensity-discharge lamps |
| 02/19/2004 | DE10236636A1 Color temperature stabilization and regulation method for compact flashing light using equal increase or reduction in voltage of switched energy stores |
| 02/19/2004 | DE10235217A1 Circuit device for operating lamp, especially low pressure discharge lamp has current limiter that can drive control electrode of at least one transistor switching unit in inverter to limit current |
| 02/19/2004 | CA2495027A1 Thermally-protected ballast for high-intensity-discharge lamps |
| 02/19/2004 | CA2494960A1 Thermal protector mounting bracket and improved thermally-protected ballast |
| 02/18/2004 | EP0938835B1 A ballast for a high intensity discharge lamp |
| 02/18/2004 | CN2604039Y Low-voltage DC fluorescent lamp electronic inverter |
| 02/18/2004 | CN2604038Y 压电陶瓷点灯器 Piezoelectric ceramic igniter |
| 02/18/2004 | CN2604037Y Electronic stabilizer for fluorescent tube capable of lighting a plurality of tubes and avoiding bulb holder overheat |
| 02/18/2004 | CN2604036Y Centralized control type electronic ballast |
| 02/18/2004 | CN2604023Y Auxiliary power supply for fluorescent lamp electronic converter |
| 02/18/2004 | CN1476739A Power supply and/or ballast system controlled by desired load power spectrum |
| 02/18/2004 | CN1476738A Circuit arrangement |
| 02/18/2004 | CN1476662A DC-DC converter with reduced input current ripples |
| 02/18/2004 | CN1476286A Circuit used for eliminating energy saving lamp stroboscopic effect |
| 02/18/2004 | CN1476285A Lighting device for high pressure discharge lamp |
| 02/18/2004 | CN1476284A Lighting device for high-pressure discharge lamp |
| 02/18/2004 | CN1476283A Illuminator capable of regulating brightness and colour |
| 02/18/2004 | CN1475809A Current transfermer system |
| 02/17/2004 | US6693507 Thermal protector mounting bracket and improved thermally-protected ballast |
| 02/17/2004 | US6693396 Apparatus for driving a discharge lamp |
| 02/17/2004 | US6693395 Remote control of electronic light ballast and other devices |
| 02/17/2004 | US6693393 Ballast for a discharge lamp |
| 02/17/2004 | US6693392 Method and apparatus for generating a flash or a series of flashes from a multiparameter light |
| 02/17/2004 | US6693382 Control system for microwave powered ultraviolet light sources |
| 02/13/2004 | CA2395485A1 Auxiliary lamp relay for hid fixtures |
| 02/12/2004 | WO2004014111A1 Driver for a gas discharge lamp |
| 02/12/2004 | US20040027824 Apparatus and method for operating a portable xenon arc searchlight |
| 02/12/2004 | DE20114623U1 Distaler Adapter für T5 Leuchtstofflampen mit Nachrüst-EVG Distal Adapter for T5 fluorescent lamps with electronic ballast retrofit |
| 02/12/2004 | DE10233400A1 Schaltungsanordnung zum Betrieb von Entladungslampen Circuit arrangement for operating discharge lamps |
| 02/11/2004 | EP1389036A1 Discharge lamp lighting device and system comprising it |
| 02/11/2004 | EP1387765A1 A dual lamp system for manufacturing dvd |
| 02/11/2004 | CN2603503Y Cold cathode right source |
| 02/11/2004 | CN1474641A Invertor for liquid crystal display screen back light source |
| 02/11/2004 | CN1474640A Sound resonant suppressing method for high strength gas discharging lamp |
| 02/11/2004 | CN1138296C Low voltage mercury vapour discharge lamp |
| 02/10/2004 | US6690591 Single stage converter in LCD backlight inverter |
| 02/10/2004 | US6690282 Light-source lamp unit, light-source device and projection-type display apparatus |
| 02/10/2004 | US6690122 Lamp ballast with SEPIC converter |
| 02/10/2004 | US6690121 High precision luminance control for PWM-driven lamp |
| 02/10/2004 | US6690113 Fluorescent lighting assembly |
| 02/10/2004 | CA2255512C Ballast for discharge lamp |
| 02/05/2004 | WO2004012481A1 Discharge lamp device, discharge lamp lighting method and device |
| 02/05/2004 | US20040021492 Pulse width modulation circuit and illuminating device incorporating same |
| 02/05/2004 | US20040021433 Energy savings device and method for a resistive and/or an inductive load and/or a capacitive load |
| 02/05/2004 | US20040021432 Frequency-modulated dimming control system of discharge lamp |
| 02/05/2004 | US20040021429 Low pressure gas discharge lamp ballst with on-off indicator |
| 02/05/2004 | US20040021428 Lamp control system |
| 02/05/2004 | DE4229894B4 Koppelvorrichtung für die Speisung von Mikrowellenenergie zur Erregung elektrodenloser Lampen Coupling device for the supply of microwave energy to excite electrodeless lamps |
| 02/04/2004 | EP1387489A1 Pulse width modulation circuit and illuminating device incorporating same |
| 02/04/2004 | EP1084596B1 Supply coupling of a fluorescent lamp |
| 02/04/2004 | CN1473453A Overvoltage protection for hid lamp ballast |
| 02/04/2004 | CN1472999A Discharge light ignitor |
| 02/04/2004 | CN1472998A Discharge tube ignitor |
| 02/04/2004 | CN1472588A Camera flash |
| 02/04/2004 | CN1472587A Camea flash |
| 02/04/2004 | CN1137609C 镇流器 Ballast |
| 02/04/2004 | CN1137608C Circuit arrangement |
| 02/04/2004 | CN1137607C Ballast |
| 02/04/2004 | CN1137606C 镇流电路 Ballast circuit |
| 02/04/2004 | CN1137605C Circuit arrangement |
| 02/03/2004 | US6687138 Circuit synchronization apparatus and method |
| 02/03/2004 | US6686705 Ballast circuit with multiple inverters and dimming controller |
| 02/03/2004 | US6686704 Lamp lighting apparatus and projector using the same |
| 02/03/2004 | US6686703 High frequency electronic ballast |
| 02/03/2004 | US6686702 Transformerless xenon power supply |
| 02/03/2004 | US6686681 Discharge lamp with base |
| 02/03/2004 | CA2344415C Lighting device |