| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 07/16/2013 | US8487538 Driving power control circuit for light emitting diode and method thereof |
| 07/16/2013 | CA2477650C Ballast with load-adaptable fault detection circuit |
| 07/11/2013 | US20130175950 Electronic ballast with power thermal cutback |
| 07/11/2013 | US20130175945 Circuit and method for preheating filaments and ballast |
| 07/10/2013 | CN203057668U EPS emergency lighting system |
| 07/10/2013 | CN203057667U Variable power energy saving device for light adjustment of street lamp |
| 07/10/2013 | CN203057666U Dimming ballast |
| 07/10/2013 | CN203057665U Fluorescent lamp electronic ballast with simple circuit and high power factor |
| 07/10/2013 | CN203057664U High-performance long-life fluorescent lamp electronic ballast |
| 07/10/2013 | CN203057663U Digital high-power HID electronic ballast with random ignition |
| 07/10/2013 | CN203057662U HID xenon road illuminating lamp |
| 07/10/2013 | CN203057661U Rapid lamp tube starter |
| 07/10/2013 | CN203057660U Easy-mounting-dismounting ballast casing |
| 07/10/2013 | CN203052607U Electrical cabinet of electrodeless lamp and electrodeless lamp |
| 07/10/2013 | CN103202104A Circuit arrangement and method for operation of a high-pressure discharge lamp below its nominal power |
| 07/10/2013 | CN103202103A Method and device for driving an hid lamp |
| 07/10/2013 | CN103200745A Audible and visible human body induction multifunctional comprehensive lighting demonstration table |
| 07/10/2013 | CN103196091A Integrated lamp for emergency lighting and daily lighting |
| 07/10/2013 | CN102047173B Display device and television reception device |
| 07/10/2013 | CN102026461B Automobile light control device |
| 07/10/2013 | CN101861011B Converter device for driving light sources and related method |
| 07/10/2013 | CN101754555B Driving method for discharge lamp, driving device for discharge lamp, light source device, and image display apparatus |
| 07/10/2013 | CN101730368B Power saving apparatus for a high-intensity discharge lamp |
| 07/10/2013 | CN101730354B High pressure discharge lamp lighting device and image display device |
| 07/10/2013 | CN101663921B Discharge tube driving device |
| 07/10/2013 | CN101502183B Device and method for monitoring at least one fluorescent lamp |
| 07/10/2013 | CN101459999B Light source device, projector and driving method of discharge lamp |
| 07/09/2013 | US8482663 Light-emitting diode arrangement, optical recording device and method for the pulsed operation of at least one light-emitting diode |
| 07/09/2013 | US8482228 Visible indication of mistaken lamp use |
| 07/09/2013 | US8482217 High pressure discharge lamp ballast and light source apparatus |
| 07/04/2013 | WO2013101710A1 Solid-state lighting apparatus including current diversion controlled by lighting device bias states and current limiting using a passive electrical component |
| 07/04/2013 | WO2013098239A1 Power supply for a field emission light source |
| 07/04/2013 | US20130169193 Performance optimization of a field emission device |
| 07/04/2013 | US20130169185 Electronic ballast for lighting unit and lighting apparatus |
| 07/04/2013 | US20130169161 Cold Cathode Fluorescent Lamp Illumination Device with Protection Mechanism |
| 07/04/2013 | DE102013200049A1 Mikrowellenerregtes Ultraviolettlampensystem mit Datenerfassungs- und Abfrageschaltung und Verfahren Microwave Manic ultraviolet lamp system with data acquisition and sampling circuit and method |
| 07/03/2013 | CN203039987U Electrodeless lamp provided with storage battery |
| 07/03/2013 | CN103188857A Ballast structure of electrodless lamp |
| 07/03/2013 | CN103188843A Multi-intelligence lamp system and information transfer method thereof |
| 07/03/2013 | CN102395240B External resistor control HID (high intensity discharge) xenon lamp efficiency output apparatus |
| 07/03/2013 | CN101902869B Metal halide power control system and control method thereof |
| 07/03/2013 | CN101743784B Lighting method for a high-pressure discharge lamp, lighting circuit for a high-pressure discharge lamp, high-pressure discharge lamp apparatus, and projector-type image display apparatus |
| 07/03/2013 | CN101646293B Driving device and driving method for discharge lamp, light source device, and image display apparatus |
| 07/02/2013 | US8476889 Piezoelectric transformer driving device controlled by variable reference voltage values and image forming device |
| 07/02/2013 | US8476847 Thermal foldback system |
| 07/02/2013 | US8476839 Electronic method to improve the starting characteristics of direct current arc lamps |
| 07/02/2013 | US8476837 Transistor ladder network for driving a light emitting diode series string |
| 07/02/2013 | US8476836 AC driven solid state lighting apparatus with LED string including switched segments |
| 07/02/2013 | US8476561 Substrate heating device and substrate heating method |
| 07/02/2013 | US8474985 Projector lamp lighting device supplying AC current including low frequency region having current reduction waveform |
| 06/27/2013 | WO2013096547A1 Apparatus and methods for control of a light emitting device using power line communication |
| 06/27/2013 | WO2013092750A1 Dlp projector and method for projecting at least one image onto a projection surface |
| 06/27/2013 | WO2013092287A1 Electronic ballast for a gas discharge lamp |
| 06/27/2013 | WO2013090957A1 Operating device with power factor correction and ripple limitation by change in operation |
| 06/27/2013 | WO2013090955A1 Method, operating device and lighting system with integrated lamp rectifier effect detection |
| 06/27/2013 | WO2013090954A1 Activation of light‑emitting means via an ac supply voltage |
| 06/27/2013 | US20130162168 Timer-based switching circuit synchronization in an electrical dimmer |
| 06/27/2013 | US20130162143 Lamp control system, lamp power-saving system and method therefor |
| 06/27/2013 | DE102012207002A1 Verfahren, Betriebsgerät und Beleuchtungssystem Procedures, control gear and lighting system |
| 06/27/2013 | DE102012204118A1 Betrieb von Leuchtmitteln Operation of lamps |
| 06/27/2013 | DE102011089592A1 DLP-Projektor und Verfahren zum Projizieren mindestens eines Bildes auf eine Projektionsfläche DLP projector and method of projecting at least one image on a projection |
| 06/27/2013 | DE102011089553A1 Elektronisches Vorschaltgerät für eine Gasentladungslampe Electronic ballast for a gas discharge lamp |
| 06/26/2013 | CN203027584U Intelligent dimming high-intensity-discharge (HID) lamp |
| 06/26/2013 | CN203027583U HID electronic ballast having self-diagnosis and remote monitoring function |
| 06/26/2013 | CN203027582U High-performance fluorescent lamp electronic ballast with simple circuit |
| 06/26/2013 | CN203027581U Energy-saving lamp triggering and starting circuit |
| 06/26/2013 | CN203027580U New type electronic ballast having advantages of long service life and super energy-saving |
| 06/26/2013 | CN203027579U Novel electronic ballast device |
| 06/26/2013 | CN1939100B High voltage discharge lamp lighting apparatus and luminaire |
| 06/26/2013 | CN103180013A Skin treatment system |
| 06/26/2013 | CN103179770A Novel environment-friendly energy-saving fluorescent lamp |
| 06/26/2013 | CN103179769A Two-way output energy-saving device for lighting fluorescent lamp |
| 06/26/2013 | CN103179768A Intelligent electronic ballast |
| 06/26/2013 | CN102244968B Method and device for controlling daylight lamp |
| 06/26/2013 | CN101730353B Drive circuit of light source |
| 06/26/2013 | CN101494942B Piezo-oscillator for high voltage lighting |
| 06/25/2013 | US8471500 Electronic device and method of illumination |
| 06/25/2013 | US8471497 Control circuit and method for LED drivers |
| 06/25/2013 | US8471492 Wireless adaptation of lighting power supply |
| 06/25/2013 | US8471490 Circuit arrangement and method for voltage conversion |
| 06/25/2013 | US8471489 Power regulator and remote power control device |
| 06/25/2013 | US8471488 Reducing total harmonic distortion in a power factor corrected flyback switch mode power supply |
| 06/25/2013 | US8471487 Light emitting module driving circuit and related method |
| 06/25/2013 | US8471481 Lighting apparatus using PN junction light-emitting element and dimming method thereof |
| 06/25/2013 | US8471480 Decorative light string having master and slave modes and master override switch |
| 06/25/2013 | CA2679816C High pressure discharge lamp lighting device and luminaire using same |
| 06/20/2013 | WO2013042092A3 Electronic ballast |
| 06/20/2013 | US20130155561 Over voltage protection circuit and driver circuit using the same |
| 06/20/2013 | US20130154502 Apparatus and Methods for Control of a Light Emitting Device Using Power Line Communication |
| 06/20/2013 | US20130154499 Circuit arrangement and method for starting and operating a high-pressure discharge lamp |
| 06/19/2013 | EP2605623A1 Method of controlling the current of a flash lamp |
| 06/19/2013 | EP2604098A1 Method for operating a high-pressure discharge lamp outside the nominal power range thereof |
| 06/19/2013 | EP2604097A1 Modulation of a pfc during dc operation |
| 06/19/2013 | CN203015256U Light-adjustable HID electronic ballast based on monitoring function of internet of things |
| 06/19/2013 | CN203015255U ''AC-AC regulation and control'' based numerical-control HID driver |
| 06/19/2013 | CN203015254U Power line sodium lamp circuit based on PL3120 power line carrier wave chip |
| 06/19/2013 | CN203015253U Semi-gloss control train xenon lamp ballast |
| 06/19/2013 | CN203015252U Electronic ballast circuit of remote control dimmable electrodeless lamp |
| 06/19/2013 | CN203015251U Neon lamp power supply |
| 06/19/2013 | CN203015250U Eight-wire ballast |