| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 06/05/2002 | CN2494553Y Cold light switch base and cold light sheet device for mains switch |
| 06/05/2002 | CN1352520A Method for demodulating light modulated AC signal by monolithic computer |
| 06/05/2002 | CN1352519A Monolithic computer controlled electronic ballast system for fluorescent lamp |
| 06/04/2002 | US6400444 Exposure apparatus and device producing method using the same |
| 06/04/2002 | US6400277 Monitor for detecting failures of neon sign transformers |
| 06/04/2002 | US6400103 Networkable power controller |
| 06/04/2002 | US6400100 System and method for determining the frequency of longitudinal mode required for color mixing in a discharge lamp |
| 06/04/2002 | US6400098 Compact fluorescent lamp dimmers |
| 06/04/2002 | US6400096 Control circuit for piezo transformer based fluorescent lamp power supplies |
| 06/04/2002 | US6400095 Process and device for the detection of the rectifier effect appearing in a gas discharge lamp |
| 06/04/2002 | CA2173873C Double resonant driver ballast for gas lamps |
| 06/04/2002 | CA2077030C Step-dimming magnetic regulator for discharge lamps |
| 06/04/2002 | CA2056225C Method of hot restarting electrodeless hid lamps |
| 05/30/2002 | WO2002043450A1 Inverter circuit with coupled inductor for lcd backlight |
| 05/30/2002 | WO2002043087A2 Apparatus for providing overload protection for a circuit |
| 05/30/2002 | US20020064384 Multi-flash photography system |
| 05/30/2002 | US20020064383 Flash photography system |
| 05/30/2002 | US20020063534 Inverter for LCD backlight |
| 05/29/2002 | EP1209955A2 Cold-cathode tube lighting circuit with protection circuit for piezoelectric transformer |
| 05/29/2002 | EP1209954A1 Dimming control of electronic ballasts |
| 05/29/2002 | EP0965252B1 Electronic ballast |
| 05/29/2002 | EP0871349B1 Discharge lamp operating electronic device |
| 05/29/2002 | DE10058914A1 Electronic mains connection device for controlling operating behavior of low pressure gas discharge lamp, comprises inverter having 2 FET electronic switches and parallel inductive-capacitive reactances |
| 05/29/2002 | DE10058529A1 Control method for gas discharge light source e.g. liquid crystal display rear illumination light source, controls light source current dependent on light source temperature |
| 05/29/2002 | CN1351814A Cold-cathode lamp, in particular, a table or display window lamp |
| 05/29/2002 | CN1351757A Discharge lamp and electronic flash device using the same |
| 05/29/2002 | CN1351408A Voltage converter without electric spark |
| 05/29/2002 | CN1085930C Illumination device |
| 05/28/2002 | US6396722 High-efficiency adaptive DC/AC converter |
| 05/28/2002 | US6396220 Lamp ignition with compensation for parasitic loading capacitance |
| 05/28/2002 | US6393608 Self-powered modification kit for hid luminaire installations |
| 05/28/2002 | CA2086408C Fiber-optic anticycling device for street lamps |
| 05/23/2002 | WO2002041671A2 Protocol enhancement for lighting control networks and communications interface for same |
| 05/23/2002 | WO2002041670A2 A voltage-fed push-pull llc resonant lcd backlighting inverter circuit |
| 05/23/2002 | WO2002041669A2 Voltage regulated electronic ballast for mutliple discharge lamps |
| 05/23/2002 | WO2002041481A2 Dc-dc converter with reduced input current ripples |
| 05/23/2002 | US20020061193 Electronic flash device |
| 05/23/2002 | US20020061192 Flash photography system |
| 05/23/2002 | US20020061190 Zoom flash and flash photography system |
| 05/23/2002 | US20020060897 Pulse generating capacitor |
| 05/23/2002 | US20020060893 LCD backlight inverter |
| 05/23/2002 | US20020060537 Dual mode electronic dimmer |
| 05/23/2002 | DE10056432A1 Electrical circuit, especially for controlling discharge tubes/lamps, has at least one transistor base connected to supply-side inductive element end, at least one connected to transformer-side end |
| 05/22/2002 | EP1206902A2 Insulating cover for dual connector |
| 05/22/2002 | CN2492998Y Low-crest factor electronic ballast |
| 05/22/2002 | CN2492940Y Power-saving lamp with several inductive ballasts |
| 05/22/2002 | CN1350419A Discharge lamp lighting method and discharge lamp lighting apparatus |
| 05/21/2002 | US6393220 Camera with electronic flash |
| 05/21/2002 | US6392367 Electric discharge lamp lighting device |
| 05/21/2002 | US6392366 Traic dimmable electrodeless fluorescent lamp |
| 05/21/2002 | US6392365 Hot restrike protection circuit for self-oscillating lamp ballast |
| 05/21/2002 | US6392364 High voltage discharge lamp apparatus for vehicles |
| 05/21/2002 | US6392363 Starter for a gas discharge lamp, especially a high pressure gas discharge lamp for automobile headlights |
| 05/21/2002 | US6392362 Discharge lamp lighting circuit |
| 05/21/2002 | US6392361 Microprocessor based switching device for energizing a lamp |
| 05/21/2002 | US6392360 Neon sign transformer module and receptacle |
| 05/21/2002 | US6392353 Circuit device for dimming a discharge lamp |
| 05/21/2002 | CA2215599C Device for operating a discharge lamp |
| 05/21/2002 | CA2144461C Method of operating a neon discharge lamp particularly useful on a vehicle |
| 05/16/2002 | WO2002039789A1 Circuit device for reducing or increasing an alternating voltage in an approximately sinusoidal manner |
| 05/16/2002 | WO2002039788A1 Ballast self oscillating inverter with phase controlled voltage feedback |
| 05/16/2002 | WO2001074571A3 Mold assembly holder |
| 05/16/2002 | US20020057909 Capacitor charging apparatus and electronic flash and apparatus containing same |
| 05/16/2002 | US20020057555 Electronic unit |
| 05/16/2002 | US20020057547 Surge protection and reset circuit |
| 05/16/2002 | US20020057169 Inductive component comprising a rod-shaped core |
| 05/16/2002 | US20020057062 Discharge lamp lighting apparatus and lamp apparatus |
| 05/16/2002 | US20020057058 High pressure discharge lamp and lighting apparatus using the lamp |
| 05/16/2002 | DE10142324A1 Steuerung zur gleichmässigen Blitzlichtabgabe Control for uniform flash light output |
| 05/16/2002 | DE10056347A1 Monitoring power of film or video lighting unit by varying metal halide lamp power based on value of supply voltage |
| 05/16/2002 | CA2436545A1 Ballast self oscillating inverter with phase controlled voltage feedback |
| 05/15/2002 | EP1206169A2 Method and apparatus for disabling sodium ignitor upon failure of discharge lamp |
| 05/15/2002 | CN2492040Y Electronic ballast of high voltage sodium lamp |
| 05/15/2002 | CN2492039Y Electronic starter of fluorescent lamp |
| 05/15/2002 | CN2492038Y Forced electronic starter of fluorescent lamp |
| 05/15/2002 | CN2492037Y Structure of rectifying effect protective circuit for fluorescent lamp electronic ballast |
| 05/15/2002 | CN2492036Y Easy-to-detatch modular fluorescent lamp ballast |
| 05/15/2002 | CN1349373A Single-tube contravariant fluorescent lamp ballasting method |
| 05/15/2002 | CN1349125A Liquid crystal displaying device with improved illumination |
| 05/15/2002 | CN1085034C Method and circuit arrangement for operating high pressure discharging lamp |
| 05/14/2002 | US6388399 Network based electrical control system with distributed sensing and control |
| 05/14/2002 | US6388398 Mixed mode control for ballast circuit |
| 05/14/2002 | US6388397 Discharge lamp lighting device |
| 05/14/2002 | US6388396 Electronic ballast with embedded network micro-controller |
| 05/14/2002 | US6388395 Circuit device |
| 05/14/2002 | US6388394 High-intensity discharge lamp lighting device and lighting system |
| 05/14/2002 | US6388392 System for providing auxiliary power to lighting unit for heavy equipment having a direct current power supply and no uninterruptible power supply |
| 05/14/2002 | US6388391 Operating method for a discharge lamp having at least one dielectrically impeded electrode |
| 05/14/2002 | US6388388 Brightness control system and method for a backlight display device using backlight efficiency |
| 05/14/2002 | US6388380 Electric discharge lamp lighting unit |
| 05/10/2002 | WO2002037904A1 Digital ballast |
| 05/10/2002 | WO2002037903A2 Circuit arrangement |
| 05/10/2002 | WO2002037902A1 Control device of gas-discharge light source |
| 05/10/2002 | WO2002021884A3 Ballast circuit for operating a discharge lamp |
| 05/10/2002 | WO2000048432A9 Balanced power supply circuit for multiple cold-cathode fluorescent lamps |
| 05/09/2002 | US20020053886 Self-heating type cold-cathode discharge tube control apparatus |
| 05/08/2002 | EP1203512A1 Method and circuit for operating a sodium high-pressure lamp |
| 05/08/2002 | DE10147095A1 Entladungslampe ohne Elektroden Discharge lamp without electrodes |
| 05/08/2002 | DE10065995A1 UV module with in-built backup emitter for exposing liquids to UV rays has UV emitters fixed in UV-permeable quartz encased glass tubes with a space between the tubes and a casing for substances to pass for irradiation. |
| 05/08/2002 | DE10053803A1 Beleuchtungssystem mit schonender Vorheizung von Gasentladungslampen Lighting system with gentle preheating of gas discharge lamps |