Patents
Sitemap › H05 - Electric techniques not otherwise provided for › H05B - Electric heating; Electric lighting not otherwise provided for › H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps
Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100)
08/2003
08/13/2003CN2566576Y Electronic starter for fluorescent lamp
08/13/2003CN1436438A Protocol enhancement for lighting control networks and communications interface for same
08/13/2003CN1436031A Electronic ballast capable of reducing filament current after starting of fluorescent tube
08/13/2003CN1436030A Lamp driving device and liquid crystal display with same
08/13/2003CN1436029A Device and method for light-modulating control of fluorescent lamp
08/13/2003CA2418839A1 Operating circuit for a discharge lamp with frequency-variable ignition
08/12/2003US6605908 Stopper protection circuit of electronic ballast for fluorescent lamp
08/12/2003US6605906 Light source device
08/12/2003US6605905 Discharge lamp driving apparatus and lighting fixture using the apparatus
08/12/2003US6605900 Rechargeable emergency lamp tube
08/07/2003WO2003065771A1 Control device for operating a plurality of lamps
08/07/2003WO2003065556A2 Low frequency inverter fed by a high frequency ac current source
08/07/2003WO2003036405B1 Lamp driving topology
08/07/2003US20030146718 Image display apparatus and method for operating the same and lamp unit for image display apparatus
08/07/2003US20030146716 Electronic ballast having open circuit in output
08/07/2003US20030146715 Extraction of accessory power from a signal supplied to a luminaire from a phase angle dimmer
08/07/2003US20030146714 Electronic ballast system having emergency lighting provisions
08/07/2003US20030146527 Apparatus and system for the production of plastic lenses
08/06/2003EP1333707A1 Electronic ballast for a discharge lamp
08/06/2003EP1332647A1 Circuit device for reducing or increasing an alternating voltage in an approximately sinusoidal manner
08/06/2003EP1332646A2 Electronic ballast with continued conduction of line current
08/06/2003EP0923850B1 Circuit arrangement
08/06/2003EP0902965B1 Multiple reflection electrodeless lamp with sulfur or selenium fill and method for providing radiation using such a lamp
08/06/2003CN2565232Y Brightness regulator of lamp for seeing X-ray film
08/06/2003CN2565231Y Efficient electronic ballast
08/06/2003CN2565230Y Electric arc detecting and protecting apparatus
08/06/2003CN1434478A No-electrode illumination system
08/05/2003US6603663 Electronic unit
08/05/2003US6603275 Electronic starter for fluorescent lamps
08/05/2003US6603274 Dimming ballast for compact fluorescent lamps
08/05/2003US6603272 Rosen type piezoelectric transformer with multiple output electrodes, and stabilizer for multiple light source using that
08/05/2003US6603271 Illumination lamp having brightness and color control
08/05/2003CA2253366C Discharge lamp turning-on device
08/05/2003CA2076704C High frequency luminous tube power supply having neon-bubble and mercury-migration suppression
07/2003
07/31/2003WO2003063557A1 Device and method for controlling a gas discharge lamp, and lighting system with gas discharge lamp and control device
07/31/2003WO2003063556A1 Ballast safety circuit
07/31/2003WO2003063125A1 Seamless highlighting in lcd monitors and lcd-tv
07/31/2003US20030142496 Auxiliary illuminating device having an adjustable color temperature by controlling the amount of light passing through color filters
07/31/2003US20030142083 Driver circuit for LCDM
07/31/2003US20030142060 Apparatus and driving lamp and liquid crystal display device having the same
07/31/2003US20030141830 Ballast circuit with multiple inverters and dimming controller
07/31/2003US20030141829 Current equalizer assembly for LCD backlight panel
07/31/2003US20030141828 Electrodeless lighting system
07/31/2003US20030141827 Power factor correction circuit with faster bus charging rate during startup
07/31/2003US20030141826 High efficacy metal halide lamp with praseodymium and sodium halides in a configured chamber
07/31/2003US20030141819 Illumination unit for normal and emergency operation
07/31/2003CA2369901A1 Remote-control device of lamp series control box
07/30/2003EP1330946A1 Circuit arrangement for operating several gas discharge lamps
07/30/2003EP1330945A1 Electronic ballast comprising a full bridge circuit
07/30/2003EP1330944A2 Voltage feed push-pull resonant inverter for lcd backlighting
07/30/2003EP1330943A1 Ballast self oscillating inverter with phase controlled voltage feedback
07/30/2003EP1330942A1 Control device of gas-discharge light source
07/30/2003EP1330799A1 Energy-saving light marking device with low power consumption
07/30/2003EP1181845B1 An electronic ballast circuit
07/30/2003EP1095542B1 Circuit arrangement
07/30/2003CN2563883Y Electronic calcium compensating device
07/30/2003CN2563829Y Light regulator for electronic transformer for radio remote control type halogen lamp
07/30/2003CN2563415Y Induction land lamp
07/30/2003CN1433250A Discharge lamp lighting equipment, light source equipment and projecting display equipment
07/30/2003CN1433249A Xenon lamp power source controlling circuit and signal light-emitting equipment with the circuit
07/30/2003CN1433248A Electronic starter
07/30/2003CN1433131A Step-up circuit and power soure convertor
07/30/2003CN1433047A Electrode-less lighting system and lighting lamp
07/30/2003CN1432991A Power controlling device and method for liquid crystal display
07/29/2003US6600273 High-power electronic ballast for fluorescent lamp
07/29/2003US6600272 Bulb-shaped fluorescent lamp
07/29/2003US6600271 Method and apparatus of an improved electronics ballast circuit
07/29/2003US6600270 Method and apparatus for generating a flash or series of flashes from a multiparameter light
07/24/2003WO2003061353A1 Microwave-powered ultraviolet rotating lamp, and process of use thereof
07/24/2003WO2003061352A1 Device and method for operating a discharge lamp
07/24/2003WO2003060619A1 Electronic ballast with ignition and operation control
07/24/2003WO2003041455A3 Method and apparatus for lighting a discharge lamp
07/24/2003US20030137834 Apparatus and method for operating a portable xenon arc searchlight
07/24/2003US20030137484 Seamless highlighting in LCD monitors and LCD-TV
07/24/2003US20030137260 Discharge lamp lighting device
07/24/2003US20030137259 Circuit for controlling power source for xenon lamps and signal lighting device adopting the same
07/24/2003US20030137257 Reactor and ballast system
07/24/2003US20030137256 Ballast for a lamp and method for operating a ballast for a lamp
07/24/2003US20030137252 Ballast safety circuit
07/24/2003US20030137222 Piezoelectric transformer
07/23/2003EP1330144A2 Light source device of a dielectric barrier discharge lamp
07/23/2003EP1243165B1 Circuit for operating a gas discharge lamp
07/23/2003EP0824849B1 Arrangement for detecting the ignition of a high-pressure gas discharge lamp
07/23/2003CN2562462Y Negative oxygen ion lamps
07/23/2003CN1431552A Luminous system, transmitting device and receiving device used in luminous system
07/23/2003CN1115944C Method for eliminating counter E.M.F. of electronic ballast and special efficient electronic ballast
07/23/2003CN1115711C Compact fluorescent lamp having helical lamp envelope
07/23/2003CN1115583C 光学扫描器 Optical scanner
07/22/2003US6597131 Discharge lamp lighting circuit
07/22/2003US6597130 Driving apparatus of discharge tube lamp
07/22/2003US6597129 Lighting fixture and system
07/22/2003US6597128 Remote discharge lamp ignition circuitry
07/22/2003US6597127 Discharge lamp operating apparatus, self-ballasted discharge lamp, dimmer and illumination kit for dimming
07/22/2003US6597126 High-frequency, ballast-free, non-thermionic fluorescent lighting system for cold environments
07/22/2003US6597118 High-pressure mercury lamp luminescent device and means of ignition
07/17/2003WO2003059022A1 Circuit for a gas-discharge lamp
07/17/2003WO2003059021A1 Ballast for discharge lamp
07/17/2003WO2003059020A1 High-pressure discharge lamp operation apparatus and high-pressure discharge lamp operation method
07/17/2003WO2003059019A1 Lighting system
07/17/2003WO2003059018A2 Modulated high-frequency electronic ballast
1 ... 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 ... 351