| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
|---|
| 05/27/2004 | US20040100205 Electrode-less discharge lamp lighting apparatus, bulb-shaped electrode-less fluorescent lamp, and discharge lamp lighting apparatus |
| 05/27/2004 | DE10252836A1 Vorrichtung zum Betreiben von Entlaudungslampen Apparatus for operating Entlaudungslampen |
| 05/27/2004 | DE10252834A1 Discharge lamp e.g. florescent lamp, operating device, includes decoupling device provided with current control unit for controlling filament current, and a heating transformer unit |
| 05/27/2004 | DE10210805B4 Vorschaltgerät für eine Entladungslampe Ballast for a discharge lamp |
| 05/27/2004 | DE10210804B4 Vorschaltgerät für eine Entladungslampe Ballast for a discharge lamp |
| 05/26/2004 | EP1422980A1 Operating method and system for resonance mode operation of high-pressure lamps in longitudinal mode |
| 05/26/2004 | EP1422979A1 High-voltage discharge lamp lighting apparatus and automobile headlight apparatus |
| 05/26/2004 | EP1422978A1 High-voltage discharge lamp lighting apparatus, high-voltage discharge lamp apparatus and projection lamp apparatus |
| 05/26/2004 | EP1099359B1 Control gear for fluorescent lamp |
| 05/26/2004 | CN2618189Y Composite flash light |
| 05/26/2004 | CN1499912A Camera flash circuit with regulatable flash brightness |
| 05/26/2004 | CN1499911A 荧光灯点亮装置 Fluorescent lighting device |
| 05/26/2004 | CN1499248A Inverter of LCD display |
| 05/25/2004 | US6741156 Rod-core transformer and a lamp cap having a rod-core transformer |
| 05/25/2004 | US6741153 Flat high-voltage impulse transformer |
| 05/25/2004 | US6741044 Lamp lighting controlling apparatus and light emitting apparatus |
| 05/25/2004 | US6741043 Ballast with adaptive end-of-lamp-life protection |
| 05/25/2004 | US6741040 Operating device for lamps with a regulated SEPIC converter |
| 05/25/2004 | US6740892 Air-cooled lamp, and article treatment system and method utilizing an air-cooled lamp |
| 05/25/2004 | CA2345447C System for automatic on/off cycling of mh lamps to promote passive end of life |
| 05/25/2004 | CA2112538C Uv bulb intensity control for water treatment system |
| 05/21/2004 | WO2004043118A1 Igniting pulse booster circuit |
| 05/20/2004 | US20040095081 Power converter circuitry and method |
| 05/20/2004 | US20040095080 Energy-saving light marking device with low power consumption |
| 05/20/2004 | US20040095079 Hid lamp operating circuit |
| 05/20/2004 | US20040095077 Method of operating a gas-discharge lamp and a power supply unit |
| 05/20/2004 | US20040095076 Operating method and system for the resonant operation of high-pressure lamps in longitudinal mode |
| 05/20/2004 | US20040095039 Piezoelectric transformation driving apparatus |
| 05/19/2004 | EP1420617A1 Method for operating a gas discharge lamp and ballast |
| 05/19/2004 | EP1419677A1 Method for operating a hid lamp using duty cycle modulation |
| 05/19/2004 | CN2617119Y High power factor high-performance electronic ballast |
| 05/19/2004 | CN2617118Y High frequency auto connected booster circuit for DC ballast |
| 05/19/2004 | CN2617027Y Fluorescent lamp tube |
| 05/19/2004 | CN1498055A Light modulation control system for electronic ballast |
| 05/19/2004 | CN1498054A High-intensity discharge lamp ballast with charged lamp rebright property |
| 05/19/2004 | CN1498053A Lighting system of discharge lamp and lighting device |
| 05/19/2004 | CN1498052A Method and system for driving CCFL |
| 05/19/2004 | CN1498051A Lighting device for high-tension discharge lamp |
| 05/19/2004 | CN1150806C Circuit system |
| 05/19/2004 | CN1150805C Power supply for feeding and igniting discharge lamp |
| 05/19/2004 | CN1150804C Circuit arrangement |
| 05/19/2004 | CN1150803C Circuit device |
| 05/19/2004 | CN1150802C Ignition method and igniting device of high pressure discharge lamp |
| 05/19/2004 | CA2451287A1 Operating method and system for the resonant operation of high -pressure lamps in longitudinal mode |
| 05/18/2004 | US6737816 Piezoelectric transformer, piezoelectric transformer drive circuit, piezoelectric transformer drive method and cold cathode tube drive apparatus using piezoelectric transformer |
| 05/18/2004 | US6737815 Reducing vertical segregation in a HID lamp operated at VHF frequencies using simultaneous arc straightening and color mixing |
| 05/18/2004 | US6737809 Plasma lamp with dielectric waveguide |
| 05/14/2004 | CA2443354A1 Method of operating a gas-discharge lamp and a power supply unit |
| 05/13/2004 | WO2004026006A3 Control system for light tubes |
| 05/13/2004 | WO2003098659A3 Method and device for driving a metal halide lamp |
| 05/13/2004 | US20040091255 Camera flash circuit with adjustable flash illumination intensity |
| 05/13/2004 | US20040090800 Ballast circuit having enhanced output isolation transformer circuit with high power factor |
| 05/13/2004 | US20040090193 Device for operating discharge lamps |
| 05/13/2004 | US20040090192 Lamp colour control for dimmed high intensity discharge lamps |
| 05/13/2004 | US20040090188 High pressure discharge lamp starter device and an automotive headlight device |
| 05/13/2004 | US20040090184 Device and method for operating a high pressure discharge lamp |
| 05/13/2004 | DE20122035U1 Betriebsgerät für Leuchtstoffröhren mit eingebauter Kühlstelle Operating device for fluorescent lamps with built-in cooling point |
| 05/13/2004 | CA2448793A1 Device for operating discharge lamps by means of a transformer with four windings, and a corresponding method |
| 05/13/2004 | CA2448791A1 Device for operating discharge lamps |
| 05/12/2004 | EP1418795A2 Device and method for operating a high pressure discharge lamp |
| 05/12/2004 | EP1417869A1 Device for operating a high-pressure discharge lamp |
| 05/12/2004 | CN2616002Y Efficient field effect plate neon lamp |
| 05/12/2004 | CN2616001Y Intelligent road lamp electricity-saving device |
| 05/12/2004 | CN2616000Y Double-frequency electronic ballast |
| 05/12/2004 | CN2615999Y Electronic ballast of fluorescent lamp |
| 05/12/2004 | CN1496578A Mercury discharge lamps |
| 05/12/2004 | CN1496211A Circuit arrangement for running discharge lamp |
| 05/12/2004 | CN1496209A Inverter drive and liquid crystal display containing the same |
| 05/12/2004 | CN1495505A Flasher and auxiliary power supply device |
| 05/12/2004 | CN1495488A Liquid crystal display and driving light source device |
| 05/12/2004 | CN1149904C Light source lighting device |
| 05/12/2004 | CN1149903C Starter circuit |
| 05/12/2004 | CN1149732C Electronic ballasts with current and voltage feedback paths |
| 05/12/2004 | CN1149630C Electrodeless discharge lamp |
| 05/12/2004 | CN1149629C Microwave non-electrode discharge lamp device |
| 05/12/2004 | CN1149627C Fluorescent lamp |
| 05/12/2004 | CN1149607C Lamp bulb and its producing method |
| 05/11/2004 | US6735386 Flash control circuit |
| 05/11/2004 | US6734773 Transformer with integrated inductor |
| 05/11/2004 | US6734643 Light source device |
| 05/11/2004 | US6734641 Device for turning on light and illumination apparatus |
| 05/11/2004 | US6734640 System and method for electronic ballast design |
| 05/11/2004 | US6734638 Electrodeless lighting system |
| 05/11/2004 | US6734637 Hot-restrike ignition system for a high-frequency high-intensity discharge lamp assembly |
| 05/06/2004 | WO2004039130A1 High-pressure discharge lamp operation device and illumination appliance having the same |
| 05/06/2004 | WO2004016050B1 Thermally-protected ballast for high-intensity-discharge lamps |
| 05/06/2004 | WO2003001855A8 Electronic ballast |
| 05/06/2004 | US20040085792 Inverter controller |
| 05/06/2004 | US20040085791 Inverter controller |
| 05/06/2004 | US20040085783 Inverter controller |
| 05/06/2004 | US20040085767 Fluorescent lamp lighting device |
| 05/06/2004 | US20040085032 Device and method for the multi-phase operation of a gas discharge or metal vapour lamp |
| 05/06/2004 | US20040085031 Apparatus and method for eliminating striation of fluorescent lamp with dimming control |
| 05/06/2004 | US20040085028 Thermally-protected ballast for high-intensity-discharge lamps |
| 05/06/2004 | US20040085027 Method and device for lighting high pressure discharge lamps |
| 05/06/2004 | US20040085026 Flashlamp drive circuit |
| 05/06/2004 | EP1416777A2 Protection device for transformers, particularly for supplying power to lamps |
| 05/06/2004 | EP1416518A2 Short arc high intensity mercury discharge lamp |
| 05/06/2004 | EP1416517A2 Fluorescent lamp lighting device |
| 05/06/2004 | EP1415516A2 Fluorescent lamp circuit |