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)
12/1993
12/14/1993	US5270619 Novelty inert gas device having separable components
12/14/1993	US5270618 Magnetic-electronic dual-frequency ballast
12/09/1993	WO1993025952A1 Dimmable high power factor high-efficiency electronic ballast controller integrated circuit with automatic ambient over-temperature shutdown
12/09/1993	WO1993025058A1 Solid state ballast for fluorescent lamps
12/08/1993	EP0572567A1 Phase-controlled power modulation system
12/08/1993	CN2149084Y Electricity-saving apparatus for street lamps
12/08/1993	CN2149082Y Xenon lamp source silicon rectifier for projecting film
12/08/1993	CN1079337A High-pressure discharge lamp
12/08/1993	CN1079282A Energy-saving health fluorescent lamp
12/07/1993	US5268617 Power-supply apparatus for starting and operating a high-pressure gas discharge lamp
12/01/1993	EP0572207A2 Constant brightness liquid crystal display backlight control system
12/01/1993	EP0571574A1 Circuit containing symmetrically-driven coil for energizing electrodeless lamp
12/01/1993	CN2148456Y Lamp failure protector for electronic ballast of single or multiple lamps
12/01/1993	CN2148455Y Fluorescent lamp starting preheater matching with electronic ballast
12/01/1993	CN2148454Y Ballast for fluorescent lamp
12/01/1993	CN1079099A Low voltage quick start reactive compensating ballast
11/1993
11/30/1993	US5266869 Discharge lamp lighting apparatus having output impedance which limits current flow therethrough after start of discharging
11/30/1993	CA1324811C Fluorescent lamp regulating system
11/27/1993	CA2096929A1 Constant brightness liquid crystal display backlight control system
11/25/1993	WO1993023977A1 Lighting arrangement with variable luminous intensity and colour
11/25/1993	WO1993023976A1 Apparatus for lighting fluorescent lamp
11/25/1993	WO1993023975A1 Electrodeless discharge lamp including impedance matching and filter network
11/25/1993	WO1993023974A1 Stable power supply with high power factor
11/25/1993	WO1993023798A1 Zero-voltage complementary switching high efficiency class d amplifier
11/25/1993	DE4223457C1 Flash light source with ultra short flash period for high-speed colour photography - has number of hybrid arc path stages consisting of creep spare paths in series with arcing paths
11/25/1993	CA2136086A1 Electrodeless discharge lamp including impedance matching and filter network
11/25/1993	CA2136085A1 Zero-voltage complementary switching high efficiency class d amplifier
11/25/1993	CA2136081A1 Lighting arrangement with variable luminous intensity and colour
11/24/1993	CN2147710Y Double jump bulb start
11/24/1993	CN2147709Y Electronic ballast slowly started by thermo-insulated PTC
11/24/1993	CN2147708Y DC fluorescent lamp exchanger for railway vehicle
11/24/1993	CN1078844A Sectional light regulator for electronic ballast
11/24/1993	CN1022879C Electrodeless low-pressure discharge lamp
11/23/1993	US5264895 Flash lighting circuit
11/21/1993	CA2089190A1 Compact fluorescent lamp system
11/17/1993	CN2146837Y Driver of daylight lamp
11/17/1993	CN2146836Y Energy-saving incandescent and fluorescent combined daylight lamp
11/17/1993	CN2146835Y Electronic glow starter for metal-halogen light
11/17/1993	CN2146829Y Incandescent and fluorescent combined lamp
11/16/1993	US5262701 Circuit arrangement for operating a high pressure sodium lamp
11/16/1993	US5262700 Fluorescent lighting means
11/16/1993	US5262699 Starting and operating circuit for arc discharge lamp
11/10/1993	EP0569208A1 Low pressure discharge lamp assembly
11/10/1993	CN2146101Y 闪光灯 Flash
11/10/1993	CN2146099Y 低频电子镇流器 Low-frequency electronic ballast
11/10/1993	CN2146098Y Protecting device for electronic ballast
11/09/1993	CA1324185C System for lighting fluorescent lamps
11/05/1993	CA2095468A1 Low pressure discharge lamp assembly
11/03/1993	EP0098285B2 Electronic high frequency controlled device for operating gas discharge lamps
11/03/1993	CN2145491Y Initiate preheater for fluorescent lamp
11/02/1993	US5258692 Electronic ballast high power factor for gaseous discharge lamps
10/1993
10/28/1993	DE4313195A1 Discharge lamp control arrangement - has units detecting occurrence of dielectric breakdown and lamp voltage, with control unit for power supply
10/27/1993	EP0567408A1 Device for supplying discharge lamps and automotive headlamp containing such a device
10/27/1993	EP0567108A1 A control circuit for a gas discharge lamp, particularly for use in motor vehicles
10/27/1993	EP0566815A1 A low-pressure gas discharge lamp of the fluorescent lamp type
10/27/1993	EP0566672A1 Low wattage metal halide lamp apparatus
10/27/1993	CN2144909Y AC and DC dual-purpose flash lamp group
10/27/1993	CN2144908Y Energy-saving ballast
10/27/1993	CN2144907Y Glow starter for daylight lamp
10/26/1993	US5256946 Gaseous discharge lamp system with auxiliary lamp
10/26/1993	US5256939 Magnetic electronic fluorescent lamp ballast
10/26/1993	CA1323655C Electronic equipment for control of fluorescent lamps
10/20/1993	EP0566310A1 An electrodeless high intensity discharge lamp
10/20/1993	EP0565670A1 Circuit for driving a gas discharge lamp load
10/20/1993	CN2144389Y Electronic ballast for fluorescent lamp
10/20/1993	CN2144388Y Electronic glow starter
10/20/1993	CN2144387Y Electronic ballast for dc fluorescent lamp
10/20/1993	CN2144346Y Long service life fluorescent tube
10/20/1993	CN2144241Y Master/slave three-state lamp
10/19/1993	US5255277 Electronic pulse width controller for flashlamp pumped lasers
10/17/1993	CA2091496A1 Magnetically tunable starting circuit for an electrodeless high intensity discharge lamp
10/14/1993	WO1993020677A1 Electronic ballast for a gas discharge lamp
10/14/1993	WO1993020672A1 Circuit for driving a gas discharge lamp load
10/14/1993	WO1993020496A1 Energy saving fluorescent lamp controller
10/14/1993	WO1993020441A1 Automated continuous and random access analytical system and components thereof
10/14/1993	DE4216716C1 Starter circuit for pre-heated gas discharge lamp - uses series choke coil inducing HV pulse for ignition of lamp and logic stage detecting voltage across lamp to detect ignition for controlling heating current
10/14/1993	CA2639400A1 A microparticle enzyme immunoassay (meia) cartridge feeder
10/13/1993	EP0565113A1 High pressure vapor discharge lamp with a built-in igniter
10/13/1993	EP0564895A1 Electronic ballast for low pressure discharge lamps
10/13/1993	CN2143861Y Capacitive ballast of fluorescent lamp
10/13/1993	CN2143860Y Longlife power saving ballast of fluorescent lamp
10/13/1993	CN2143859Y 无灯丝日光灯 No filament lamp
10/13/1993	CN2143858Y AC/DC dual fluorescent lamp
10/13/1993	CN1022453C Light-adjusting ignitor for high-low pressure gas discharge lamps
10/12/1993	US5252894 Energy saving flourescent lamp controller
10/12/1993	US5252891 Uninterruptible fluorescent lamp circuit available for emergency lighting
10/07/1993	DE4309214A1 UV light system e.g. for drying paints using adjustable output
10/07/1993	DE4210624A1 Elektronisches Vorschaltgerät für eine Gasentladungslampe Electronic ballast for a gas discharge lamp
10/06/1993	EP0563804A1 Electronic ballast
10/06/1993	EP0563770A1 Electronic ballast
10/06/1993	EP0563765A2 Circuit for producing an electrical voltage reference value depending on an electrical control voltage
10/06/1993	EP0563716A1 Device with UV-lamp
10/06/1993	EP0563696A2 Method and switching arrangement for switching on and off artificial light sources in a room
10/06/1993	EP0347427B1 Circuit arrangement for operating a gas discharge lamp on a direct current source
10/06/1993	CN2143393Y High effective fluorescent light
10/06/1993	CN2143392Y Switch box for fluorescent light without ballast
10/05/1993	US5251119 Inverter with shared chopper function for high input power factor with restrained higher harmonics
10/05/1993	US5250978 Flashing device
10/05/1993	US5250977 Electronic flash unit
10/05/1993	US5250877 Method and apparatus for driving a gas discharge lamp

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