| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
|---|
| 01/03/1984 | CA1159892A1 Hot cathode discharge lamp lighting device |
| 12/27/1983 | US4422743 Exposure system for a camera |
| 12/21/1983 | EP0096105A2 Instant start solid state ballast for fluorescent and gas-dis charge lamps |
| 12/20/1983 | US4422016 Constant energy transfer rate strobe source |
| 12/13/1983 | CA1158710A1 Direct current solid state ballast for a gaseous discharge lamp |
| 12/13/1983 | CA1158709A1 Electric flash device for camera |
| 12/06/1983 | US4419607 Discharge lamp starter and starting and operating circuitry |
| 11/24/1983 | WO1983004139A1 Flash lamp and circuitry for use with an incandescent light |
| 11/22/1983 | US4417181 Electronic ballast |
| 11/22/1983 | US4417180 Lamp firing apparatus |
| 11/22/1983 | US4417179 Light quantity control device |
| 11/22/1983 | US4416524 Light source device for an endoscope |
| 11/22/1983 | CA1157510A1 Fluorescent lamp with incandescent ballasting systems |
| 11/16/1983 | EP0093751A1 Method, supply apparatus and gas discharge lighting device for the simultaneous supply of a plurality of lighting devices from a common supply source |
| 11/15/1983 | US4415840 Combined flash tube and quench tube apparatus |
| 11/15/1983 | US4415839 Electronic ballast for gaseous discharge lamps |
| 11/15/1983 | US4415838 Frequency converter for supplying an electrodeless discharge lamp |
| 11/15/1983 | US4415837 Starting circuit for gaseous discharge lamps |
| 11/15/1983 | CA1157078A1 Dual tube direct and bounce flash apparatus |
| 11/09/1983 | EP0093469A2 DC/AC converter for the ignition and the supply with alternating current of a gas and/or vapour discharge lamp |
| 11/08/1983 | US4414493 Light dimmer for solid state ballast |
| 11/08/1983 | US4414492 Electronic ballast system |
| 11/08/1983 | US4414491 Current limiting power supply for electron discharge lamps |
| 11/08/1983 | US4414489 Compact electric discharge lamp-and-ballast unit, and plug-in ballast module therefor |
| 11/02/1983 | EP0093019A2 Vapor discharge lamp assembly |
| 11/02/1983 | EP0092654A2 Ballast apparatus |
| 11/01/1983 | US4413209 Series-connected discharge device ballast apparatus |
| 11/01/1983 | CA1156303A1 Keep-alive circuit for gas discharge lamp |
| 11/01/1983 | CA1156302A1 System for energizing and dimming gas discharge lamps |
| 10/25/1983 | US4412156 Power supply for an ac discharge lamp |
| 10/25/1983 | US4412154 Start up frequency adjustment in an electronic power device for a discharge lamp |
| 10/25/1983 | US4412152 Discharge lamp with bimetal starter |
| 10/25/1983 | CA1155905A1 Low pressure gas discharge lamp with increased end illumination |
| 10/19/1983 | EP0091728A1 Arc lamp power supply |
| 10/19/1983 | EP0091724A1 Ballast apparatus for operating a discharge lamp |
| 10/19/1983 | EP0091432A1 Circuit for starting and operating discharge lamps |
| 10/18/1983 | US4410837 Discharge lamp lighting device |
| 10/18/1983 | US4410836 Voltage limited ballast for gaseous discharge devices |
| 10/18/1983 | CA1155483A1 Arrangement including a gas and/or vapour discharge lamp |
| 10/18/1983 | CA1155481A1 Unitary light source comprising compact hid lamp and incandescent ballast filament |
| 10/11/1983 | US4409522 Direct current power source for an electric discharge lamp using reduced starting current |
| 10/11/1983 | CA1155235A1 Circuit system for lighting discharge lamp or lamps |
| 10/11/1983 | CA1155170A1 Discharge lamp lighting device with a delayed-output oscillation circuit |
| 10/11/1983 | CA1155169A1 Arc discharge lamp unit having an incandescent series filament ballast |
| 10/04/1983 | US4408141 Dual cathode beam mode fluorescent lamp |
| 09/27/1983 | US4406976 Discharge lamp ballast circuit |
| 09/20/1983 | US4405889 Power supply for repetitive discharge apparatus |
| 09/20/1983 | CA1154078A1 Multiple gaseous lamp electronic ballast circuit |
| 09/20/1983 | CA1154077A1 Starting and operating circuit for gaseous discharge lamps |
| 09/20/1983 | CA1154076A1 High intensity discharge lamp containing electronic starting aid |
| 09/20/1983 | CA1154075A1 Instant-on light source |
| 09/20/1983 | CA1154074A1 Power saving circuit for gaseous discharge lamps |
| 09/13/1983 | US4404498 Multiplex strobe light |
| 09/13/1983 | US4404496 Light source apparatus using flash discharge tube |
| 09/13/1983 | US4404029 Non-linear polycrystalline barium titanate-type dielectric element |
| 09/07/1983 | EP0087962A2 Beam mode fluorescent lamp having dual cathodes with unipotential ends |
| 09/06/1983 | US4403173 Igniter circuit for high-pressure metal vapor discharge lamp |
| 09/06/1983 | US4402598 Exposure control apparatus |
| 09/06/1983 | CA1153420A1 Fluorescent lighting device |
| 08/30/1983 | CA1153056A1 Arc lamp lighting unit with low and high light levels |
| 08/30/1983 | CA1153055A1 Arc lamp lighting unit with means to prevent prolonged application of starting potentials |
| 08/24/1983 | EP0086664A1 Lamp dimming apparatus |
| 08/23/1983 | US4400087 Light measuring circuit |
| 08/18/1983 | WO1983002871A1 Ignition device for discharge lamps |
| 08/18/1983 | WO1983002805A1 Pump for liquids and gases |
| 08/16/1983 | US4399392 Arc lamp power supply |
| 08/16/1983 | US4399391 Circuit for starting and operating fluorescent lamps |
| 08/10/1983 | EP0085505A1 Electronic ballast system for gas discharge tubes |
| 08/10/1983 | EP0085073A1 Converter. |
| 08/09/1983 | US4398130 Arc lamp lighting unit with low and high light levels |
| 08/09/1983 | US4398129 Active lamp pulse driver circuit |
| 08/09/1983 | US4398128 Method and circuit arrangement for heating and igniting as well as controlling or regulating the light flux of low-pressure gas-discharge lamps |
| 08/09/1983 | US4398127 Electric flash lamp unit with a light controlling circuit |
| 08/09/1983 | US4398126 Protected low-pressure discharge lamp operating circuit |
| 08/09/1983 | CA1151722A1 Adaptor for high intensity arc discharge lamps |
| 08/09/1983 | CA1151721A1 Power supply for a high density discharge or fluorescent lamp |
| 08/02/1983 | US4396872 Ballast circuit and method for optimizing the operation of high intensity discharge lamps in the growing of plants |
| 08/02/1983 | US4396870 Electronic flash device |
| 08/02/1983 | US4396866 Lamp filament drive scheme providing for control of filament voltages by use of lamp current in solid state ballasts |
| 07/27/1983 | EP0084268A2 Single electrode beam mode fluorescent lamp for D.C. use |
| 07/26/1983 | US4395659 Power supply device |
| 07/26/1983 | US4395658 Proper light emission indicating device for computer flash device |
| 07/21/1983 | WO1983002537A1 Electronic high frequency controlled device for operating gas discharge lamps |
| 07/20/1983 | EP0083992A1 Circuit and method for controlling the output illumination of one or more gas discharge lamps |
| 07/20/1983 | EP0083874A2 Beam mode fluorescent lamp |
| 07/19/1983 | US4394603 Energy conserving automatic light output system |
| 07/19/1983 | US4394079 Photographic flash device operatively responsive to the luminance of an object to be photographed to prevent overexposure |
| 07/12/1983 | US4393335 Electronic flash device |
| 07/06/1983 | EP0082879A1 Line operated fluorescent lamp inverter ballast |
| 07/05/1983 | US4392089 Isolator for use with frequency responsive switching circuit |
| 07/05/1983 | US4392088 Device for charging a charging capacitor |
| 07/05/1983 | US4392087 Two-wire electronic dimming ballast for gaseous discharge lamps |
| 07/05/1983 | US4392086 Apparatus for operating a gaseous discharge lamp |
| 07/05/1983 | US4392085 Direct drive ballast with delayed starting circuit |
| 07/05/1983 | US4392081 Lighting unit |
| 07/05/1983 | CA1149442A1 Rapid starter switch for a fluorescent lamp |
| 07/05/1983 | CA1149441A1 Simplified power source for fluorescent lamps |
| 06/29/1983 | EP0082253A2 Circuit arrangement for a discharge lamp |
| 06/28/1983 | US4390814 Lighting apparatus |
| 06/28/1983 | CA1149077A1 Circuit arrangement for starting and operating a gas- and/or vapour discharge lamp |