| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
|---|
| 02/18/1993 | WO1993003589A1 Discharge lamp life and lamp lumen life-extender module, circuitry, and methodology |
| 02/18/1993 | WO1993003588A1 Control circuit |
| 02/18/1993 | CA2114519A1 Discharge lamp life and lamp lumen life-extender module, circuitry, and methodology |
| 02/17/1993 | CN2127225Y Neon lamp power supply |
| 02/17/1993 | CN2127224Y Energy-saving fluorescent lamp |
| 02/17/1993 | CN2127223Y Electronic ballast |
| 02/17/1993 | CN2127222Y Low-temp. low-voltage starter |
| 02/17/1993 | CN1069156A High power factor double-tube fluorescent lamp ballast |
| 02/17/1993 | CA2072396A1 Dual feedback control for a high-efficiency class-d power amplifier circuit |
| 02/16/1993 | US5187414 Fluorescent lamp controllers |
| 02/16/1993 | US5187413 Low pressure discharge lamp apparatus |
| 02/16/1993 | US5187412 Electrodeless high intensity discharge lamp |
| 02/16/1993 | US5187411 Discharge lamp life and lamp lumen life-extender module, circuitry, and methodology |
| 02/16/1993 | US5187410 Electronic flash device |
| 02/10/1993 | CN1068927A Fluorescent lamp or illuminator driven by dc with periodically changed polarity |
| 02/10/1993 | CA2072825A1 Timed power saving device |
| 02/09/1993 | US5185560 Electronic fluorescent lamp ballast |
| 02/09/1993 | US5185557 High-pressure discharge lamp |
| 02/09/1993 | US5184881 Device for full spectrum polarized lighting system |
| 02/03/1993 | EP0525340A1 Control-method of a strobe, and flashlight device, in particular a studio flashlight |
| 02/03/1993 | EP0525133A1 Fail-safe uninterruptible lighting system |
| 02/02/1993 | US5184171 Electronic flash device |
| 01/28/1993 | DE4124712A1 Electronic starter with thermal switching for fluorescent lamps - safeguards MOSFET against overheating by discharging or short-circuiting gate-to-source capacitance at excessive temp. |
| 01/26/1993 | US5182702 Inverter device |
| 01/26/1993 | US5182503 Low pressure mercury discharge lamp circuit arrangement |
| 01/21/1993 | WO1993001695A1 Fluorescent lamp ballast for pulsed-mode operation |
| 01/21/1993 | WO1993001694A1 Circuit for operating a fluorescent lamp |
| 01/20/1993 | CN1068237A Phase-controlled power modulation system |
| 01/19/1993 | WO1993002535A1 Device for operating fluorescent lamps |
| 01/19/1993 | US5180953 Strobo device |
| 01/19/1993 | US5180952 Electronic track lighting system |
| 01/19/1993 | US5180950 Power-factor-corrected electronic ballast |
| 01/19/1993 | CA2092001A1 Device for operating fluorescent lamps |
| 01/14/1993 | DE4218959A1 Schaltungsanordnung zum betrieb einer leuchtstofflampe Circuit arrangement for operating a fluorescent lamp |
| 01/14/1993 | DE4123187A1 Vorschaltgeraet zum pulsbetrieb von gasentladungslampen Ballasted for pulse operation of gas discharge lamps |
| 01/14/1993 | DE4120730A1 Elektrodenlose niederdruck-entladungslampe An electrodeless low-pressure discharge lamp |
| 01/13/1993 | EP0522574A1 Strobe alarm circuit |
| 01/13/1993 | EP0522266A1 Overvoltage protected ballast |
| 01/12/1993 | US5179509 High-frequency and high-voltage power supply unit with internal protecting circuit |
| 01/12/1993 | US5179326 Electronic ballast with separate inverter for cathode heating |
| 01/12/1993 | US5179323 Ballast for mini fluorescent lamp |
| 01/07/1993 | WO1993000784A1 Circuit for operating a discharge lamp |
| 01/07/1993 | WO1993000782A1 Master-slave half-bridge dc-to-ac switchmode power converter |
| 01/07/1993 | EP0521818A1 Room illumination control system |
| 01/07/1993 | EP0521557A2 High-pressure discharge lamp |
| 01/07/1993 | EP0521229A1 Device to display images illuminated from behind, particularly advertising images |
| 01/07/1993 | CA2112465A1 Master-slave half-bridge dc-to-ac switchmode power converter |
| 01/07/1993 | CA2112121A1 Circuit for operating a discharge lamp |
| 01/06/1993 | CN1067777A Whole-range (efficiency) light regulating technology for fluorescent lamp |
| 01/05/1993 | US5177409 Controllable electronic ballast |
| 01/05/1993 | US5177408 Startup circuit for electronic ballasts for instant-start lamps |
| 01/05/1993 | US5177407 Glow discharge lamp having dual anodes and circuit for operating same |
| 01/05/1993 | US5177404 Removable power service module for recessed lighting system |
| 12/30/1992 | EP0520735A1 Electronic starter for fluorescent lamps |
| 12/30/1992 | EP0520716A1 Shielded starting coil for an electrodeless high intensity discharge lamp |
| 12/30/1992 | EP0520715A1 Improved starting circuit for an electrodeless high intensity discharge lamp |
| 12/30/1992 | EP0520538A1 High-pressure discharge lamp |
| 12/30/1992 | EP0462120A4 Circuit and method for driving and controlling gas discharge lamps |
| 12/30/1992 | CN2126503U Fluorescent lamp electronic ballast for ship |
| 12/30/1992 | CN2126502U Energy-saving ballast for fluorescent lamp |
| 12/30/1992 | CN2126501U Energy-saving fluorescent lamp with two tube and single ballast |
| 12/30/1992 | CN2126500U Autotransformer type gas discharge lamp dc. power supply |
| 12/30/1992 | CN2126499U Low temp. and voltage glow starter for fluorescent lamp |
| 12/30/1992 | CN2126078U Daily-use timing sterilising apparatus |
| 12/29/1992 | US5175476 Magnetically tunable starting circuit for an electrodeless high intensity discharge lamp |
| 12/29/1992 | US5175475 Lighting system |
| 12/29/1992 | US5175474 Power source for lighting apparatus |
| 12/29/1992 | US5175471 Circuit arrangement for the operation of a fluorescent lamp |
| 12/29/1992 | US5175470 Fluorescent lamp electrode disconnect arrangement |
| 12/29/1992 | US5175469 Combination including an emergency lighting arrangement |
| 12/29/1992 | US5175437 Ultraviolet light apparatus |
| 12/29/1992 | US5174642 Remote ballast assembly |
| 12/25/1992 | CA2068151A1 Starting circuit for an electrodeless high intensity discharge lamp |
| 12/24/1992 | DE4209763A1 Electronically operated compact fluorescent lamp - has heat insulating component between lamp envelope and lamp operating circuit in socket |
| 12/24/1992 | DE4121009A1 Schaltungsanordnung zum betrieb einer entladungslampe A circuit arrangement for operating a discharge lamp |
| 12/24/1992 | DE4120269A1 Inverted converter for lead circuit contg. discharge lamp - contains bistable switching device with bimetallic changeover switch contg. switching, rest and working contacts |
| 12/23/1992 | WO1992022992A1 Switching power supply for high-voltage flash lamps |
| 12/23/1992 | WO1992022953A1 Electrical power supply |
| 12/23/1992 | EP0519220A1 Ballast with controlled heating time |
| 12/23/1992 | CN1067349A Superior function fluorescent lamp |
| 12/23/1992 | CN1019632B Circuit arrangement suitable for operating high-pressure discharge lamp |
| 12/22/1992 | US5173643 Circuit for dimming compact fluorescent lamps |
| 12/22/1992 | US5173642 Rare gas discharge fluorescent lamp device |
| 12/16/1992 | CN2125223U Section adjustable light device for electronic ballast |
| 12/15/1992 | US5172034 Wide range dimmable fluorescent lamp ballast system |
| 12/15/1992 | US5172033 Discharge lamp operating inverter circuit with electric dimmer utilizing frequency control of the inverter |
| 12/15/1992 | US5172031 Hermetically sealed type electronic flash device |
| 12/14/1992 | CA2071233A1 Removable power service module for recessed lighting system |
| 12/13/1992 | CA2070845A1 High-pressure discharge lamp |
| 12/10/1992 | WO1992022187A1 Low pressure xenon lamp and driver circuitry for use in theatrical productions and the like |
| 12/10/1992 | WO1992022186A1 Circuit for driving a gas discharge lamp load |
| 12/10/1992 | WO1992022185A1 Circuit for driving a gas discharge lamp load |
| 12/10/1992 | WO1992022184A1 Circuit for driving a gas discharge lamp load |
| 12/10/1992 | WO1992022183A1 Circuit for driving at least one gas discharge lamp |
| 12/10/1992 | WO1992022182A1 Device for operating a gas discharge lamp |
| 12/09/1992 | EP0517650A1 Automatic room lighting control installation |
| 12/09/1992 | EP0516752A1 Apparatus for regulating the intensity of light emitted by a lamp |
| 12/09/1992 | CN2124539U Electronic high-frequency ballast for fluorescent light |
| 12/09/1992 | CN2124538U Long service life device for incandescent lamp |
| 12/09/1992 | CN1066953A Driver circuit for plurality of gas discharge lamps |