| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 02/14/2012 | US8115412 Drive device for light-emitting element |
| 02/14/2012 | US8115406 Fluorescent lamp driver circuit |
| 02/14/2012 | US8115405 High pressure discharge lamp lighting device and luminaire using same |
| 02/14/2012 | US8115404 High pressure discharge lamp lighting device and luminaire |
| 02/14/2012 | US8115403 Method of starting an HID lamp and ballast incorporating same |
| 02/14/2012 | US8115402 Method and apparatus for driving multiple parallel discharge lamps |
| 02/14/2012 | US8115401 Safety starter device |
| 02/14/2012 | US8115396 Light emitting diode lamp protecting circuit |
| 02/09/2012 | WO2012016895A1 Luminous device |
| 02/09/2012 | US20120032610 Power converter having a feedback circuit for constant loads |
| 02/09/2012 | US20120032609 Device for regulating the luminous intensity in fluorescent lamps with an electromagnetic reactance and a starter, and lighting system which comprises said device |
| 02/09/2012 | US20120032607 Method of Arranging Light Emitting Diodes Supplied by AC Power with Low Loss and Smooth Illumination in a High Expandable Structure |
| 02/09/2012 | DE102010038828A1 Leuchteinrichtung Lighting device |
| 02/08/2012 | EP2415333A1 Operating equipment having integrated cooling plate |
| 02/08/2012 | EP2415068A1 Dimmable amalgam lamp and method for operating the amalgam lamp while dimmed |
| 02/08/2012 | EP2156712B8 Circuit arrangement for operating discharge lamps and method for operating discharge lamps |
| 02/08/2012 | EP1938670B8 Electronic ballast device and method for operating an electric lamp |
| 02/08/2012 | CN202143283U 高压钠灯节能控制器 High pressure sodium lamp energy-saving controller |
| 02/08/2012 | CN202143282U 低频无极灯及其控制电路 Low frequency induction lamp and its control circuit |
| 02/08/2012 | CN202143281U Street lamp power saving device |
| 02/08/2012 | CN202143280U T5灯管内置电源 T5 lamp built-in power |
| 02/08/2012 | CN202143279U 抗干扰强电子镇流器 Strong anti-jamming electronic ballast |
| 02/08/2012 | CN202143278U Low power xenon lamp lighting and triggering device |
| 02/08/2012 | CN202140850U 节能灯具 Energy-saving lamps |
| 02/08/2012 | CN1771570B 感应供电设备 Induction powered equipment |
| 02/08/2012 | CN1592531B 反馈电路和操作镇流器谐振逆变器的方法 Feedback circuit and operating method of resonant inverter ballast |
| 02/08/2012 | CN102347607A Adaptive current limiter and dimmer system including the same |
| 02/08/2012 | CN102346364A 投影机 Projector |
| 02/08/2012 | CN101814419B 钠灯及其制造工艺 Sodium and manufacturing processes |
| 02/08/2012 | CN101620829B 背光保护电路 Backlit protection circuit |
| 02/08/2012 | CN101617566B 电源设备 Power Equipment |
| 02/08/2012 | CN101166388B 背光灯管短路和开路保护电路 Backlight lamp short circuit and open-circuit protection circuit |
| 02/07/2012 | US8111008 Multiple-input electronic ballast with processor |
| 02/07/2012 | US8111006 Light emitting diode driving apparatus |
| 02/07/2012 | US8111003 Backlight assembly, display apparatus having the same and control method thereof |
| 02/07/2012 | US8110999 Light source apparatus |
| 02/07/2012 | US8110998 Multi-pulse ignition circuit for a gas discharge lamp |
| 02/07/2012 | US8110997 LED drive circuit |
| 02/07/2012 | US8110988 Plasma lamp with dielectric waveguide |
| 02/02/2012 | US20120026471 Projector, lighting device for high-pressure discharge lamp used in the projector, and method for lighting high-pressure discharge lamp |
| 02/02/2012 | US20120025736 Integrated circuit switching power supply controller with selectable buck mode operation |
| 02/02/2012 | US20120025733 Dimming multiple lighting devices by alternating energy transfer from a magnetic storage element |
| 02/02/2012 | US20120025731 Ballast for high pressure discharge lamp |
| 02/02/2012 | US20120025730 Circuit Arrangement and Method for Operating a High-Pressure Discharge Lamp |
| 02/02/2012 | US20120025728 Hid lamp ignitor |
| 02/02/2012 | US20120025712 Backlight module of liquid crystal display device |
| 02/02/2012 | DE102010038605A1 Zündschaltung zum Zünden eines mit Wechselleistung gespeisten Plasmas Ignition to ignite a plasma fed with AC power |
| 02/02/2012 | DE102010032696A1 Zwei-Schalter-Umrichter Two-switch inverter |
| 02/01/2012 | EP2413668A1 Lighting device of a discharge lamp, lighting appliance, and vehicle |
| 02/01/2012 | EP2413188A1 Projector |
| 02/01/2012 | EP2412211A1 Protecting ballast circuitry against miswiring |
| 02/01/2012 | EP2412208A1 Overvoltage protection for a bus device |
| 02/01/2012 | CN202135388U 软调光控制电子镇流器 Soft dimming electronic ballast control |
| 02/01/2012 | CN202135387U 新型环保高效电子镇流器 New environment-friendly and efficient electronic ballast |
| 02/01/2012 | CN202135386U Self-excited type timing power output cutback ballast for low-frequency bulb electrodeless lamp |
| 02/01/2012 | CN202135385U 一种驱动多路大功率氙灯的电源装置 A multiple power supply means for driving xenon lamp |
| 02/01/2012 | CN202135384U 一种防水盖型车灯镇流器 A waterproof cover type lamp ballast |
| 02/01/2012 | CN202135360U 一种具有抗非自然光干扰的自然光控制灯光的装置 A natural light natural light interference against non-controlled lighting device having |
| 02/01/2012 | CN202135355U 照明控制系统 Lighting control systems |
| 02/01/2012 | CN102342181A Multi-stage power supply for load control device having low-power mode |
| 02/01/2012 | CN101426324B 一种荧光灯启动过程控制电路及其控制方法 A fluorescent lamp startup process control circuit and control method |
| 02/01/2012 | CN101420811B 基于数字控制实现软开关pwm技术的车用hid灯镇流器 Based on digital control technology to achieve soft switching pwm car hid lamp ballast |
| 02/01/2012 | CN101236882B 灯泡形荧光灯以及照明装置 Bulb-shaped fluorescent lamps and lighting devices |
| 01/31/2012 | US8106601 LED illuminant driving circuit and automatic brightness compensation method thereof |
| 01/31/2012 | US8106599 Switched light element array and method of operation |
| 01/31/2012 | US8106597 High efficiency boost LED driver with output |
| 01/31/2012 | US8106596 Light source driving circuit |
| 01/31/2012 | US8106592 Method of driving a discharge lamp, driving arrangement, and projector system |
| 01/31/2012 | US8106585 Manufacturing method of high-pressure discharge lamp, high-pressure discharge lamp, lamp unit using high-pressure discharge lamp, and image display apparatus using high-pressure discharge lamp |
| 01/31/2012 | CA2621909C An impedance controlled electronic lamp circuit |
| 01/26/2012 | WO2012012499A1 Optical reader system |
| 01/26/2012 | WO2012011863A1 A flash apparatus and method for controlling the colour temperature of light in a flash |
| 01/26/2012 | WO2012011288A1 Lighting circuit, lamp and illumination device |
| 01/26/2012 | WO2011149866A3 Dimmer conduction angle detection circuit and system incorporating the same |
| 01/26/2012 | US20120020131 Power apparatus and method of supplying power |
| 01/26/2012 | US20120019785 Light source module, projection apparatus, and method of controlling the same |
| 01/26/2012 | US20120019169 Dimmable amalgam lamp and method for operating the amalgam lamp while dimmed |
| 01/26/2012 | US20120019159 Gas-discharge lamp controller utilizing a novel reheating frequency generation mechanism |
| 01/26/2012 | US20120019154 Driving circuit for driving light emitting diodes and dimmer |
| 01/26/2012 | US20120019147 Dimmable compact fluorescent lighting device |
| 01/26/2012 | US20120019146 Detector circuit and method for controlling a fluorescent lamp |
| 01/25/2012 | EP2409552A1 Circuit and lighting system for dimming an illuminant |
| 01/25/2012 | CN202127540U Lighting device |
| 01/25/2012 | CN202127539U Energy-saving recycling ballast |
| 01/25/2012 | CN202125852U Xenon spheroid pendant lamp |
| 01/25/2012 | CN1886777B Method and apparatus for image optimization in backlight displays |
| 01/25/2012 | CN1812678B System and method for driving a multi-lamp |
| 01/25/2012 | CN1725929B Multi-tube drive system |
| 01/25/2012 | CN102333408A Switching system and method for operating at least one discharge lamp |
| 01/25/2012 | CN102333407A Discharge lamp lighting device and illuminating apparatus using the same |
| 01/25/2012 | CN101644389B Fluorescent lamp, gas discharge lamp and intelligent control circuit |
| 01/25/2012 | CN101472365B Flash control circuit |
| 01/25/2012 | CN101313634B Projector, and lighting method of light source unit of projector |
| 01/25/2012 | CN101304628B Method for controlling start procedure of electric ballast of high-strength air discharge lamp |
| 01/25/2012 | CN101287323B Auto-excitation type electronic ballast with over-temperature protection function |
| 01/25/2012 | CN101166389B Electronic rectifier for exception protection of discharging lamp and discharging lamp |
| 01/25/2012 | CN101164390B Operating devices with lamp regulation by analysis of the lamp temperature |
| 01/25/2012 | CN101072465B High pressure discharge lamp lighting device |
| 01/24/2012 | US8102167 Phase-cut dimming circuit |
| 01/24/2012 | US8102128 Driving method and driving device for discharge lamp, light source device, and image display device |