Patents
Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100)
08/2005
08/23/2005US6933684 Electronic ballast using cut and save technology
08/23/2005US6933683 Microwave powered lamphead having external shutter
08/23/2005US6933682 Method for operating fluorescent lamps and ballast
08/23/2005US6933681 Circuit arrangement and method for starting and operating discharge lamps
08/23/2005US6933678 Emergency lighting function illumination appliance
08/23/2005US6933486 Illumination management system
08/18/2005WO2005076672A1 High-efficiency single-ended forward-flyback electronic driver for barrier discharge lamps
08/18/2005WO2005062683A3 Apparatus and method for controlling discharge lights
08/18/2005US20050180183 Frequency feedforward for constant light output in backlight inverters
08/18/2005US20050180172 Planar light source device and liquid crystal display apparatus having the same
08/18/2005US20050179831 Liquid crystal display device
08/18/2005US20050179406 Discharge lamp ballast circuit
08/18/2005US20050179405 Dimming circuit for a gas-discharge lamp
08/18/2005US20050179404 Multiple-input electronic ballast with processor
08/18/2005US20050179403 Electronic ballast and controlling method thereof
08/18/2005US20050179402 High intensity discharge lamp electronics controller
08/18/2005US20050179401 Operating method for the resonant operation of high-pressure lamps in longitudinal mode, and an associated system and electronic ballast
08/18/2005US20050179391 Lightening device for metal halide discharge lamp
08/18/2005DE202004005184U1 Lamp for lighting e.g. showcase, has controller for controlling power switching stage at constant operating voltage of cold cathode tubes when actual input voltage measured by voltage divider varies
08/18/2005DE19618983B4 Schaltungsanordnung zum Starten und Betreiben einer Entladungslampe Circuit arrangement for starting and operating a discharge lamp
08/18/2005DE102005003041A1 Blitzlichtlampe mit hoher Strahlungsdichte Flash lamp with high irradiance
08/18/2005DE102004004829A1 Betriebsverfahren, elektronisches Vorschaltgerät und System für den Resonanzbetrieb von Hochdrucklampen im longitudinalen Mode Operating procedures, electronic ballast and system for resonant operation of high-pressure lamps in the longitudinal mode
08/18/2005DE102004004828A1 Betriebsverfahren für den Resonanzbetrieb von Hochdrucklampen im longitudinalen Mode und zugehöriges System und EVG Operating procedures for the resonant operation of high pressure lamps in the longitudinal mode and associated system and ECG
08/17/2005EP1565042A2 Electronic ballast for fluorescent lamp using silicon-controlled phase-luminosity modulator for adjusting luminosity
08/17/2005EP1563718A2 Circuit arrangement for operating a high pressure discharge lamp
08/17/2005EP1563717A1 Circuit arrangement for operating a high pressure discharge lamp
08/17/2005CN2718945Y Non-segment dimming circuit for tuble lamp
08/17/2005CN2718944Y Digital code camera flash lamp charging control circuit
08/17/2005CN2718943Y Long-distance transmitting low-voltage halogen lamp
08/17/2005CN2718942Y Electronic transformer for low-voltage halogen lamp
08/17/2005CN2718941Y Uninterruption power light modulating semiconductor luminous health care lamp
08/17/2005CN2718775Y Electrodeless daylight lamp
08/17/2005CN2718772Y Integrated self-ballast mountable & dismountuble small power metal halide lamp
08/17/2005CN1656859A High-voltage discharge lamp operating device
08/17/2005CN1656858A 启动器 Starter
08/17/2005CN1655659A Frequency feedforward for constant light output in backlight inverters
08/17/2005CN1655658A Resonate operating method of high voltage lamp under longitudinal mode, electron ballast and system
08/17/2005CN1655048A Display device
08/17/2005CN1655031A Planar light source device and liquid crystal display apparatus having the same
08/17/2005CN1215369C Camera with stroboscope
08/16/2005US6930898 Single-stage backlight inverter and method for driving the same
08/16/2005US6930454 Method for operating at least one low-pressure discharge lamp and operating device for at least one low-pressure discharge lamp
08/16/2005US6930453 Power supply device for energizing discharge lamp
08/16/2005CA2148399C Protection circuit for arc discharge lamps
08/11/2005WO2005074342A2 Box for a ballast
08/11/2005WO2005074332A1 High pressure discharge lamp operation device and operation method
08/11/2005WO2005074331A1 Projection television receiver having a projection lamp life indicator
08/11/2005WO2005074010A2 Method and ballast for driving a high-pressure gas discharge lamp
08/11/2005WO2005074008A1 Compact electromagnetic induction lamp
08/11/2005WO2005072454A2 Method and apparatus for dimming control of electronic ballasts
08/11/2005US20050174818 Liquid crystal display system with lamp feedback
08/11/2005US20050174095 Photoflash capacitor charger and method thereof
08/11/2005US20050174070 Dimmer circuit arrangement
08/11/2005US20050174069 Ballast circuit for operating a gas discharge lamp
08/11/2005US20050174067 Electronic ballast having timing unit correction
08/11/2005US20050174013 Transformer level driving circuit
08/11/2005DE102004001618A1 Schaltungsanordnung zum Betrieb von Lichtquellen Circuit arrangement for operating light sources
08/11/2005DE102004001617A1 Schaltungsanordnung zum Betrieb von Lichtquellen Circuit arrangement for operating light sources
08/11/2005CA2553859A1 Lighting device and a lighting method for a high pressure discharge lamp
08/10/2005EP1562408A1 Electronic ballast with timer-based correction
08/10/2005EP1562222A2 Metal halide lamp and lighting apparatus using the same
08/10/2005EP1562139A1 Display device
08/10/2005EP1561367A1 Igniting pulse booster circuit
08/10/2005EP0766906B1 Method and circuit arrangement for operating a high pressure discharge lamp
08/10/2005CN2717169Y Dedicated control chip for electronic ballast
08/10/2005CN1653863A Lighting device of electrodeless discharge lamp, bulb type electrodeless fluorescent lamp and lighting device of discharge lamp
08/10/2005CN1653862A Projection system
08/10/2005CN1653861A Electronic ballast for discharging lamp
08/10/2005CN1653860A Method and circuit arrangement for operating a high-pressure gas discharge lamp
08/10/2005CN1653585A Method and device for driving a metal halide lamp
08/10/2005CN1652659A Fluorescent lamp remote-controller
08/10/2005CN1652658A Abnormal state protector for electronic ballast
08/10/2005CN1652657A Preheating starting device for fluorescent lamp
08/10/2005CN1652656A Circuit for protecting filament of fluorescent tube
08/10/2005CN1652655A Illuminating device, system and controlling method thereof
08/09/2005US6927989 DC-AC converter and controller IC for the same
08/09/2005US6927636 Light stabilization for an optically excitable atomic medium
08/09/2005US6927607 Inverter driver and method
08/09/2005US6927544 Lighting control system with variable arc control including start-up circuit for providing a bias voltage supply
08/09/2005US6927539 Device and method for operating a high pressure discharge lamp
08/09/2005CA2180842C Method and apparatus for controlling lamp intensity
08/06/2005CA2495739A1 Electronic ballast having timing unit correction
08/04/2005WO2005072026A1 Electronic ballast with multi-slope current feedback
08/04/2005WO2005072025A1 A light-regulating circuit of an electromagnetic induction lamp and an electromagnetic induction lamp circuit
08/04/2005WO2005072024A1 Full digital dimming ballast for a fluorescent lamp
08/04/2005WO2005072023A1 High frequency driver for gas discharge lamp
08/04/2005WO2005072022A1 Method for operating planar fluorescent lamp
08/04/2005WO2005072021A1 Electrodeless fluorescent lamp lighting device
08/04/2005WO2005072020A1 Discharge lamp operating device, illuminator and projector
08/04/2005WO2005072019A1 Electronic ballast with transformer interface
08/04/2005WO2005070834A1 Supply device for ultraviolet lamps used in the treatment of water
08/04/2005WO2004034741A3 Electronic ballast with dc output flyback converter
08/04/2005US20050168896 Dimmer circuit with improved inductive load imbalance protection
08/04/2005US20050168796 Display device
08/04/2005US20050168200 Dimmer circuit with improved ripple control
08/04/2005US20050168199 DC-to-DC converter
08/04/2005US20050168176 Operating method, electronic ballast and system for resonant operation of high pressure lamps in the longitudinal mode
08/04/2005US20050168175 Electronic ballast with adaptive lamp preheat and ignition
08/04/2005US20050168174 State detection device
08/04/2005US20050168173 Discharge lamp lighting apparatus