| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 06/09/2005 | US20050122741 Illuminator and display device using the same |
| 06/09/2005 | US20050122420 Photographic illumination device, image-capturing system, camera system and camera |
| 06/09/2005 | US20050122061 High efficiency controller of a gas-filled light emitting tube |
| 06/09/2005 | US20050122060 [pwm illumination control circuit with low visual noise for driving led] |
| 06/09/2005 | US20050122059 Inductively powered apparatus |
| 06/09/2005 | US20050122058 Inductively powered apparatus |
| 06/09/2005 | US20050122057 Universal platform for phase dimming discharge lighting ballast and lamp |
| 06/09/2005 | DE202005005135U1 Multifunctional multi light source unit has wire less remote operation of control unit for on off and brightness control and light diode color variation |
| 06/09/2005 | DE19951114B4 Lampenansteuerschaltung Lamp drive |
| 06/09/2005 | DE10351621A1 Elektronisches Vorschaltgerät mit bei Lampenausfall weiterzubetreibenden Wandler Electronic ballast with lamp failure at weiterzubetreibenden converter |
| 06/08/2005 | EP1538882A1 Universal platform for phase dimming discharge lighting ballast and lamp |
| 06/08/2005 | EP1538881A1 Lighting device of electrodeless discharge lamp, bulb type electrodeless fluorescent lamp and lighting device of discharge lamp |
| 06/08/2005 | EP1538480A2 Photographic illumination device, image-capturing system, camera system and camera |
| 06/08/2005 | EP1538479A2 Illuminator and display device using the same |
| 06/08/2005 | EP1537915A2 Reaction vessel |
| 06/08/2005 | EP1001661B1 Light source using dielectric barrier discharge lamp, and power supply |
| 06/08/2005 | CN2704182Y Lighting electricity-saving device |
| 06/08/2005 | CN1625924A Control device for operating a plurality of lamps |
| 06/08/2005 | CN1625319A Universal platform for phase dimming discharge lighting ballast and lamp |
| 06/08/2005 | CN1625061A 发射机 Transmitter |
| 06/08/2005 | CN1624562A Photographic illumination device, portable device, camera system and camera |
| 06/08/2005 | CN1624542A Illuminator and display device using the same |
| 06/08/2005 | CN1624534A Power supply system and liquid crystal display device having the same |
| 06/08/2005 | CN1205844C Back-lighting driving and controlling device for hand-held electronic products |
| 06/08/2005 | CN1205735C Power supply having voltage-fed inverter and method for power supply |
| 06/07/2005 | US6903518 Discharge lamp device and backlight using the same |
| 06/07/2005 | US6903517 Cold-cathode driver and liquid crystal display |
| 06/03/2005 | CA2488995A1 Electronic ballast with adaptive lamp preheat and ignition |
| 06/03/2005 | CA2488950A1 Ic-based low cost reliable electronic ballast ith multiple striking attempts and end of lamp life protection |
| 06/03/2005 | CA2488768A1 Lossless circuit for sampling of lamp voltage |
| 06/03/2005 | CA2488765A1 Electronic ballast with lossless snubber capacitor circuit |
| 06/03/2005 | CA2488764A1 High efficiency 4-lamp instant start ballast |
| 06/03/2005 | CA2488763A1 Electronic ballast with open circuit voltage control and cable compensation |
| 06/03/2005 | CA2488762A1 Power supply circuits and methods for supplying stable power to control circuitry in an electronic ballast |
| 06/02/2005 | WO2005051052A1 Discharge lamp ballast with detection of abnormal discharge outside the arc tube |
| 06/02/2005 | WO2005051051A2 Method and apparatus for controlling visual enhancement of lighting devices |
| 06/02/2005 | WO2005051050A1 The apparatus and method for synchronous lighting by one ballast with two bulb |
| 06/02/2005 | WO2005048808A2 Hair-removal device and method of using one such device |
| 06/02/2005 | US20050117266 Apparatus for protecting an integrated circuit and method thereof |
| 06/02/2005 | US20050116663 Circuit for a gas-discharge lamp |
| 06/02/2005 | US20050116662 Method and apparatus for optimizing power efficiency in light emitting device arrays |
| 06/02/2005 | US20050116661 Discharge lamp apparatus |
| 06/02/2005 | US20050116650 Method of manufacturing a lamp assembly |
| 06/02/2005 | DE10348421A1 Betriebsschaltung für Lampe mit Kühlkörper Operating circuit for lamp heatsink |
| 06/02/2005 | CA2545884A1 Hair-removal device and method of using one such device |
| 06/02/2005 | CA2456389A1 Software controlled electronic dimming ballast |
| 06/01/2005 | EP1535497A1 Driver for a gas discharge lamp |
| 06/01/2005 | EP1535496A1 Radio frequency driven ultra-violet lamp |
| 06/01/2005 | EP0833548B1 Light source lamp unit, light source device, and projection display device |
| 06/01/2005 | CN1623207A Air-cooled lamp, and article treatment system and method utilizing an air-cooled lamp |
| 06/01/2005 | CN1622736A Method of dimming control and illuminating system employing same method |
| 06/01/2005 | CN1622735A Waterproof moistureproof oil smoke proof energy-saving inductive electronic ballast |
| 06/01/2005 | CN1622734A Lighting-up device of discharge lamp |
| 06/01/2005 | CN1622733A Lamp tube driving apparatus and method thereof |
| 06/01/2005 | CN1622732A A circuit for monitoring lamp load |
| 06/01/2005 | CN1622730A Luminous module |
| 06/01/2005 | CN1622276A Extra-high pressure discharge lamp lighting device |
| 06/01/2005 | CN1203983C Apparatus and system for production of plastic lenses |
| 05/31/2005 | US6900993 Inverter controller |
| 05/31/2005 | US6900600 Method for starting a discharge lamp using high energy initial pulse |
| 05/31/2005 | US6900599 Electronic dimming ballast for cold cathode fluorescent lamp |
| 05/31/2005 | US6900595 Illumination unit for normal and emergency operation |
| 05/31/2005 | US6900593 Light source and image reading device using the same |
| 05/31/2005 | US6899434 Projector and power supply device |
| 05/26/2005 | WO2005048661A1 Method and device for driving a metal halide lamp |
| 05/26/2005 | WO2005048660A1 Thermal protection for lamp ballasts |
| 05/26/2005 | WO2005048659A2 Method and apparatus for optimizing power efficiency in light emitting device arrays |
| 05/26/2005 | WO2004086463A3 High voltage offset detection circuit and method |
| 05/26/2005 | WO2004079471A3 Digital lighting ballast oscillator |
| 05/26/2005 | US20050111237 Backlight unit of liquid crystal display device and method for driving the same |
| 05/26/2005 | US20050111208 Surface light source device and liquid crystal display apparatus having the same |
| 05/26/2005 | US20050110740 Method and apparatus for image optimization in backlit displays |
| 05/26/2005 | US20050110435 Phase-control power controller with digital RMS load voltage regulation |
| 05/26/2005 | US20050110431 Low frequency inverter fed by a high frequency ac current source |
| 05/26/2005 | US20050110430 Method of reducing RMS load voltage in a lamp using pulse width modulation |
| 05/26/2005 | US20050110429 Dimmable ballast with resistive input and low electromagnetic interference |
| 05/26/2005 | US20050110428 High efficiency ballast for gas discharge lamps |
| 05/25/2005 | EP1533831A1 A new fluorescent lamp |
| 05/25/2005 | EP1532847A1 Electronic circuit for supplying a high-pressure discharge arc lamp |
| 05/25/2005 | EP1532845A2 Electronic dimming ballast for compact fluorescent lamps |
| 05/25/2005 | EP1532654A2 Method and device for driving a metal halide lamp |
| 05/25/2005 | EP1504635A4 Electronic ballast for discharge lamps |
| 05/25/2005 | DE202005002940U1 Halogen-metal vapor lamp device e.g. for uniform illumination of rooms, has PWM signal and pulse frequency modulation signal converted into drive signal |
| 05/25/2005 | DE10349548A1 Betriebsschaltung für dielektrisch behinderte Entladungslampe mit Überspannungsschutzschaltung Operating circuit for dielectric barrier discharge lamp with overvoltage protection circuit |
| 05/25/2005 | DE10349036A1 Elektronisches Vorschaltgerät mit Schutzschaltung für den Schalttransistor eines Wandlers Electronic ballast with a protective circuit for the switching transistor of a transducer |
| 05/25/2005 | CN2702579Y Electronic blast |
| 05/25/2005 | CN2702578Y Machine for automatic assembling fluorescent lamp starter base |
| 05/25/2005 | CN1620842A Device and method for controlling a gas discharge lamp, and lighting system with gas discharge lamp and control device |
| 05/25/2005 | CN1620757A Frequency divider |
| 05/25/2005 | CN1620747A DC/AC converter and its controller IC |
| 05/25/2005 | CN1620406A Fluid treatment system |
| 05/25/2005 | CN1619379A Surface light source device and liquid crystal display apparatus having the same |
| 05/25/2005 | CN1203365C Photographic film unit with lens |
| 05/24/2005 | US6896392 Apparatus and method for operating a portable xenon arc searchlight |
| 05/24/2005 | CA2232850C Circuit for starting an hid lamp |
| 05/19/2005 | WO2005046295A1 Lighting fixture and method for operating same |
| 05/19/2005 | WO2005046294A1 High voltage discharge lamp lighting apparatus |
| 05/19/2005 | WO2005046293A1 High-pressure discharge lamp operation device and illumination instrument |
| 05/19/2005 | WO2005046038A1 Dimmable ballast with resistive input and low electromagnetic interference |
| 05/19/2005 | WO2005029919A3 Dimming control techniques using self-excited gate circuits |