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)
10/1994
10/18/1994	US5357174 Feedback-controlled circuit and method for powering a high intensity discharge lamp
10/18/1994	US5357173 Ballast circuit arrangement for a high pressure sodium lamp
10/18/1994	US5357171 Gas discharge lamp system with automatic shutoff means
10/13/1994	WO1994023551A1 New fluorescent starter
10/13/1994	WO1994023442A1 Process for operating an incoherently emitting radiation source
10/13/1994	WO1994022975A1 Fluorescent materials for illumination purposes
10/13/1994	DE4412518A1 Starting (ignition) device for a discharge lamp
10/13/1994	DE4412510A1 Discharge-lamp illuminating device capable of preventing flicker due to an arc movement
10/13/1994	DE4412204A1 Converter for feeding fluorescent tubes for the illumination of railway carriages
10/13/1994	DE4331441A1 Circuit arrangement for driving a hot-cathode fluorescent lamp
10/13/1994	DE4311804A1 Energy-saving lamp
10/12/1994	CN2179686Y Resonance fluorescent lamp ballast
10/12/1994	CN2179685Y Resonance fluorescent lamp ballast
10/12/1994	CN2179684Y Self-starting ballast
10/12/1994	CN1093490A Double wattage series energy-saving lamp and the ballast for same
10/11/1994	US5355055 Lighting assembly and an electronic ballast therefor
10/11/1994	US5355054 Electrodeless low-pressure discharge lamp having a cooling body with a partitioned vapor channel
10/05/1994	EP0618754A1 Process for starting a high pressure discharge lamp with an increased runp-up power
10/05/1994	EP0618753A2 Electronic ballast for transilluminators and crosslinkers
10/04/1994	US5353214 Neon circuit including a protective structure
10/04/1994	US5352956 Power supply for gas discharge tube
09/1994
09/29/1994	WO1994022280A1 Electrodeless discharge lamp with spiral induction coil
09/29/1994	WO1994022209A1 Transistor circuit for powering a fluorescent lamp
09/29/1994	CA2158986A1 Electrodeless discharge lamp with spiral induction coil
09/28/1994	EP0617567A1 Ballast for discharge lamp with improved crest factor
09/28/1994	EP0616752A1 Circuit for operating one or more low-pressure discharge lamps
09/28/1994	CN1092914A Push-pull dc-to-ac conoerter
09/28/1994	CN1092913A Inverter device
09/27/1994	US5350977 Luminaire of variable color temperature for obtaining a blend color light of a desired color temperature from different emission-color light sources
09/27/1994	US5350976 Fluorescent lamp starter
09/21/1994	CN2178036Y High-pressure open-circuit photoelectric transfer protector
09/20/1994	US5349273 Dimmer and ground fault interruption for solid state neon supply
09/20/1994	US5349272 Multiple output ballast circuit
09/20/1994	US5349271 Electrodeless discharge lamp with spiral induction coil
09/20/1994	US5349270 Transformerless fluorescent lamp operating circuit, particularly for a compact fluorescent lamp, with phase-shifted inverter control
09/20/1994	US5349268 High voltage discharge lamp device
09/19/1994	EP0624304A4 A circuit for driving gas discharge lamps having protection against diode operation of the lamps.
09/16/1994	CA2118838A1 System for controlling fluorescent lamps
09/15/1994	WO1994021095A1 Lamp dimming device
09/15/1994	CA2157403A1 Lamp dimming device
09/14/1994	EP0615403A2 Load fault detector for high frequency luminous tube power supplies
09/14/1994	EP0615278A1 An acoustic resonance arc stabilization arrangement in a discharge lamp
09/14/1994	CN2177323Y Low voltage electronic scanning neon lamp
09/14/1994	CN2177322Y High performance fluorescence lamp starter
09/13/1994	US5347257 Varying inductances
09/13/1994	US5347200 Strobe light switching arrangement with reduced transient currents
09/13/1994	US5347196 Line output transformer
09/13/1994	CA2013174C Discharge lamp lighting device
09/12/1994	CA2116951A1 Acoustic resonance arc stabilization arrangement in a discharge lamp
09/10/1994	CA2118624A1 Load fault detector for high frequency luminous tube power supplies
09/07/1994	CN2176634Y Optic controlling switch for fluorescent lamp
09/07/1994	CN2176629Y Electronic energy-saving ballast
09/07/1994	CN2176628Y Electronic low temperature and low voltage initiator for fluorescent lamp
09/07/1994	CN1091891A 一种荧光灯启动器 A fluorescent lamp starter
09/06/1994	US5345150 Regulating light intensity by means of magnetic core with multiple windings
09/06/1994	US5345149 Lighting system with fluorescent and incandescent lamps
09/06/1994	US5345148 DC-AC converter for igniting and supplying a gas discharge lamp
09/01/1994	WO1994019919A1 High power factor gas lamp energizing circuit
09/01/1994	WO1994019816A1 Two relay switching circuit for fluorescent lighting controller
09/01/1994	DE4306117A1 Starting-current limiter for fluorescent lamps
08/1994
08/31/1994	EP0613328A2 Bi-level lighting control system for HID lamps
08/31/1994	EP0613327A1 Power supply for luminescent lamps
08/31/1994	EP0613326A1 High intensity discharge lamp ignitor
08/31/1994	CN2176000Y Light-regulating electricity-saving device for fluorescent lamp
08/31/1994	CN2175999Y Electronic starting unit
08/31/1994	CN2175967Y Pull switch for fluorescent lamp
08/30/1994	US5343367 Projection headlamp system having direct optical coupling of light distribution elements with discharge arc light source
08/30/1994	US5343126 Excitation coil for an electrodeless fluorescent lamp
08/30/1994	US5343125 High-pressure discharge lamp with pulsed inverter operating circuit, and method of operating a discharge lamp
08/30/1994	US5343124 Shock-hazard-free lighting means
08/30/1994	US5343123 Series-resonant inverter ballast
08/30/1994	US5343121 Naturalistic illumination system
08/27/1994	CA2116304A1 High intensity discharge lamp ignitor
08/27/1994	CA2115508A1 Bi-level lighting control for hid lamps
08/25/1994	DE4400436A1 Invertor device
08/24/1994	EP0612100A1 Electrodeless high-pressure discharge lamp
08/24/1994	EP0612099A1 Electrodeless high-pressure discharge lamp
08/24/1994	EP0554350A4 High power lamp
08/24/1994	CN2175508Y Desk daylight lamp with ac-dc converter
08/24/1994	CN1091225A Multifunctional universal electricity saving switch
08/23/1994	US5341069 Microprocessor-controlled strobe light
08/23/1994	US5341068 Electronic ballast arrangement for a compact fluorescent lamp
08/23/1994	US5341067 Electronic ballast with trapezoidal voltage waveform
08/18/1994	WO1994018810A1 Electronic ballast with built-in times power saver and photoelectric switching for high-pressure mercury vapor, metallic vapor and sodium vapor lamps
08/17/1994	EP0611153A2 UV bulb intensity control for water treatment system
08/17/1994	EP0610998A1 Fluorescent lamp ballast
08/17/1994	EP0610642A1 Inverter for the supply of discharge lamps with heated electrodes, with resonant circuit
08/17/1994	EP0610628A1 Base for electrodeless discharge lamp
08/17/1994	CN2174832Y Ignition device for incandescent lamp
08/17/1994	CN2174831Y 一种电子镇流器 An electronic ballast
08/17/1994	CN2174830Y Intelligent controlling device for power cut and lighting
08/17/1994	CN2174801Y Automatic protecting apparatus
08/17/1994	CA2115509A1 Electrodeless high-pressure discharge lamp
08/16/1994	US5339008 Electromagnetic discharge appartus with dual power amplifiers
08/16/1994	US5339006 High pressure discharge lamp
08/16/1994	US5339005 Method and circuit for improving HID lamp starting
08/16/1994	US5339004 Regulating ballast with power factor correction for high-frequency gaseous discharge lamps
08/16/1994	US5338110 Circuit, having multiple series resonant paths, for lighting a blinking fluorescent lamp without adversely affecting lamp life
08/11/1994	DE4303624A1 Device for generating vacuum-UV light
08/11/1994	DE4303595A1 Circuit arrangement for operating a fluorescent lamp

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