| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 02/03/1987 | US4641061 Solid state ballast for gaseous discharge lamps |
| 01/31/1987 | CN85102140A Ignition and power supply device for gas and/or vapor discharging lamps |
| 01/29/1987 | WO1987000720A1 Device for controlling electric power for discharge tube lighting fixtures |
| 01/29/1987 | WO1987000719A1 Circuit for starting and operating at least one low-pressure or high-pressure gas discharge lamp with high-frequnency oscillations |
| 01/29/1987 | DE3526230A1 High-frequency ballast apparatus for low-pressure discharge lamps of any desired powers |
| 01/24/1987 | CN86104495A Current-limiting method for gas-discharging lamp at starting and the related unit |
| 01/24/1987 | CN86102075A Energy-economizing and durable daylight lamp |
| 01/24/1987 | CN85102098A High-voltage discharging lamp |
| 01/24/1987 | CN85102058A Low-voltage discharging lamp without electrode |
| 01/24/1987 | CN85101656A High voltage natrium discharging lamp |
| 01/22/1987 | DE3526118A1 Stabiliser for discharge lamps |
| 01/22/1987 | DE3525349A1 Light for operation at low temperatures |
| 01/21/1987 | EP0208808A1 Printed resistor, method for making same and application thereof |
| 01/21/1987 | CN86201205U Rc荧光灯 Rc fluorescent |
| 01/20/1987 | US4638395 Protector for series-excited parallel-loaded resonant circuit |
| 01/20/1987 | CA1216884A1 Circuit arrangement for starting and operating a high- pressure gas discharge lamp |
| 01/15/1987 | WO1987000388A1 Drive arrangement for portable fluorescent tube light fittings |
| 01/14/1987 | EP0208370A1 Circuit arrangement for the operation of high pressure gas discharge lamps |
| 01/14/1987 | EP0208083A2 Dimmer circuit for an electronic ballast circuit for a fluorescent lamp |
| 01/14/1987 | CN85204213U Life-prolonging, energy-saving, quick starter for fluorescent lamp |
| 01/13/1987 | US4636691 Arrangement including a metal vapor discharge tube provided with at least two internal electrodes |
| 01/07/1987 | CN85105318A Printed resister, its fabrication and use |
| 01/06/1987 | US4634932 Lighting system |
| 12/24/1986 | CN85205172U Energy-saving ballast of double-tube fluorescent lamp |
| 12/24/1986 | CN85105164A The circuit for fluorescent lamp |
| 12/23/1986 | US4631450 Ballast adaptor for improving operation of fluorescent lamps |
| 12/23/1986 | US4631449 Integral crystal-controlled line-voltage ballast for compact RF fluorescent lamps |
| 12/23/1986 | US4630916 Circuit for detecting charged voltage of electronic flash |
| 12/23/1986 | CA1215739A1 Fluorescent light controller |
| 12/17/1986 | EP0205287A2 Improvements in or relating to switched mode power supplies |
| 12/17/1986 | CN86201720U Durable power-saving fluorescent lamp |
| 12/16/1986 | US4630005 Electronic inverter, particularly for use as ballast |
| 12/16/1986 | US4629946 Neon sign control device |
| 12/16/1986 | US4629945 Method and apparatus for starting low wattage high intensity discharge lamps |
| 12/16/1986 | US4629944 Starter circuit for a fluorescent tube lamp |
| 12/10/1986 | CN86200146U Fluorescent lamp without electrode, it works at low voltage and high frequency |
| 12/10/1986 | CN85204506U Combined switch for fluorescent lamp |
| 12/09/1986 | US4628229 Flashlight emission apparatus |
| 12/02/1986 | US4627063 Laser oscillator |
| 12/02/1986 | US4626953 Doubly overload-protected power distribution system |
| 12/02/1986 | US4626748 Electronic flash of series controlled type |
| 12/02/1986 | US4626747 Class-3 lighting system |
| 12/02/1986 | US4626746 Power control circuit |
| 12/02/1986 | US4626093 Flash control device for electronic flash apparatus |
| 11/26/1986 | EP0202459A2 Circuit arrangement operating at least one floorescent lamp |
| 11/26/1986 | CN86202108U Fluorescent-lamp type desk lamp and wall lamp with two pipes and three keys |
| 11/26/1986 | CN85202062U Life-prolong switch for fluorecent lamp |
| 11/25/1986 | US4625152 Tricolor fluorescent lamp |
| 11/25/1986 | US4625151 Flash device with back-up capacitor voltage supply |
| 11/20/1986 | WO1986006921A1 Protection circuit for an inverter |
| 11/20/1986 | WO1986006908A1 Flash tube simmer circuitry for a film video player electronic strobe light |
| 11/20/1986 | EP0201973A1 Circuit arrangement for operating gas discharge lamps with a periodic alternating lamp current |
| 11/20/1986 | EP0201624A2 Ballast circuit for a fluorescent lamp |
| 11/19/1986 | CN86201177U Impulse-type ballast |
| 11/19/1986 | CN86200089U Power-saving electronic starter for fluorescent lamp |
| 11/18/1986 | US4623929 Flash tube simmer circuitry for a film video player electronic strobe light |
| 11/18/1986 | US4623824 Controlled high voltage generator |
| 11/18/1986 | CA1214201A1 Operating circuit for electric discharge lamp |
| 11/18/1986 | CA1214200A1 Socket with automatic high voltage cut-off |
| 11/18/1986 | CA1214199A1 Lighting unit having power supply with improved switching means |
| 11/18/1986 | CA1214198A1 Lighting unit with improved control sequence |
| 11/11/1986 | US4622496 Energy efficient reactance ballast with electronic start circuit for the operation of fluorescent lamps of various wattages at standard levels of light output as well as at increased levels of light output |
| 11/06/1986 | WO1986006572A1 Apparatus and method for forming segmented luminosity in gas discharge tubes |
| 10/29/1986 | CN85103911A Single-stand power-saving light |
| 10/29/1986 | CN85103281A Point-jet fluorescent lamp without preheating and starter |
| 10/22/1986 | EP0198632A2 Electronic ballast for fluorescent lamps |
| 10/22/1986 | EP0198536A1 Adaption circuit for operating a high-pressure discharge lamp |
| 10/22/1986 | EP0085073B1 Converter |
| 10/22/1986 | CN85205202U Electric source device for ac low-voltage lamp |
| 10/21/1986 | US4618803 Current limited strobe charge circuit |
| 10/15/1986 | EP0197035A1 Circuit arrangement for the operation of fluorescent or ultra-violet low voltage discharge lamps |
| 10/14/1986 | US4616636 Light emission switching circuit for larynx stroboscope |
| 10/09/1986 | WO1986005941A1 Device for the individual adjustment of the intensity of several spectral lamps |
| 10/08/1986 | CN86101881A Adaptation circuit for operating a high-pressure discharge lamp |
| 10/08/1986 | CN85204731U Switch for fluorescent lamp |
| 10/07/1986 | US4616159 Driving circuit for pulsating radiation detector |
| 10/07/1986 | US4616158 Arrangement for shutting off an inverter |
| 10/07/1986 | US4616156 Tri-model type circuit breaker and rapid-start fluorescent lamp |
| 10/01/1986 | EP0196249A1 Lighting system, especially for a water-tight airport coffer |
| 10/01/1986 | CN86200853U Low-voltage and temperature electric starter |
| 10/01/1986 | CN86200077U Ring fluorescent lamp with electric ballast |
| 09/30/1986 | US4614898 Electronic ballast with low frequency AC to AC converter |
| 09/30/1986 | US4614897 Switching circuit |
| 09/24/1986 | EP0195248A2 High intensity discharge lamp starting and operating apparatus |
| 09/23/1986 | US4613934 Power supply for gas discharge devices |
| 09/23/1986 | US4613841 Integrated transformer and inductor |
| 09/23/1986 | US4613797 Flash strobe power supply |
| 09/23/1986 | US4613796 Single transistor oscillator ballast circuit |
| 09/23/1986 | US4613792 Symmetrical load power reduction device for lighting fixtures |
| 09/16/1986 | US4612479 Fluorescent light controller |
| 09/16/1986 | US4612478 Dimmer circuit for high intensity discharge lamp |
| 09/16/1986 | CA1211496A1 Dimming circuit for fluorescent lamps |
| 09/09/1986 | US4610521 Power supply unit for electronic flash |
| 09/09/1986 | CA1211151A1 High pressure discharge lamp with incorporated starter |
| 09/02/1986 | US4609852 Lamp ballast with near unity power factor and low harmonic content |
| 09/02/1986 | US4609851 Electronic flash system with control of commutation capacitor |
| 09/02/1986 | US4609850 Current driven gain controlled electronic ballast system |
| 09/02/1986 | US4609849 High pressure sodium vapor lamp having D.C. resistive ballast circuits |
| 08/26/1986 | US4608523 Phase correction for series-resonant ballasts |
| 08/26/1986 | US4608522 Electronic flash device |