Electric lamp and discharge devices: systems inventions 09/06

20060208644 - Robust rf interface in twt: Apparatus and methods provide a robust radio frequency (RF) interface for a helix-type traveling wave tube (TWT). As a vacuum device, the RF input to the TWT and the RF output from the TWT are sealed to maintain the vacuum. The disclosed robust RF interface techniques are advantageously less prone...

20060208645 - Plasma lamp with dielectric waveguide: A dielectric waveguide integrated plasma lamp (DWIPL) with a body consisting essentially of at least one dielectric material having a dielectric constant greater than approximately 2, and having a shape and dimensions such that the body resonates in at least one resonant mode when microwave energy of an appropriate frequency...

20060208646 - Plasma lamp with dielectric waveguide: A dielectric waveguide integrated plasma lamp is disclosed for powering a small and bright bulb with a diameter of a few millimeters. The lamp is contained within a high dielectric constant material which guides the microwaves to the bulb, provides heat isolation to the drive circuit, contains the microwaves, provides...

20060208647 - Plasma lamp with dielectric waveguide: A dielectric waveguide integrated plasma lamp is disclosed for powering a small. and bright bulb with a diameter of a few millimeters. The lamp is contained within a high dielectric constant material which guides the microwaves to the bulb, provides heat isolation to the drive circuit, contains the microwaves, provides...

20060208648 - Plasma lamp with dielectric waveguide: A dielectric waveguide integrated plasma lamp is disclosed for powering a small and bright bulb with a diameter of a few millimeters. The lamp is contained within a high dielectric constant material which guides the microwaves to the bulb, provides heat isolation to the drive circuit, contains the microwaves, provides...

20060208649 - Method and system for discretely controllable plasma processing: A method and system for plasma generation and processing includes a plurality of beam generators each locally controllable and configured for operation upon a single substrate. A control circuit couples to each of the plurality of beam generators with the control circuit configured to independently regulate at least a portion...

20060208650 - Plasma reactor: A plasma reactor is provided with two or more plasma generating electrodes which are installed in series inside a gas passage in a casing, with each plasma generating electrode being electrically controlled independently. The surface area of the conductor on each unit electrode forming the plasma generating electrode installed on...

20060208651 - Liquid-activated lighted ice cube: A liquid-activated lighted ice cube includes a battery-powered electrical circuit and LED housed in a hollow body that resembles an ice cube. The circuit includes electrodes exposed to the exterior of the hollow body that, when in contact with water or other liquid beverage, cause the circuit to turn on...

20060208652 - Arc discharge flashlamp: First and second substrates are spaced apart and joined around a perimeter to define a gas chamber between the substrates. The first substrate is made of a material that transmits visible radiation. A layer of a phosphor material overlies an interior surface of one of the substrates and is capable...

20060208653 - Circuit improvements for solar lamps: A solar powered lamp arrangement where there is a solar photo-voltaic panel array controllably connected to a battery storage providing with such control a supply of direct current to at least one light emitting diode, and a switching arrangement with means to detect, by reference to the output of the...

20060208654 - Electron-emitting devices, electron sources, and image-forming apparatus: Provided are electron-emitting devices, electron sources, and image-forming apparatus improved in electron emission efficiency and in convergence of trajectories of emitted electrons. An electron-emitting device has a first electrode and a second electrode placed in opposition to each other with a gap between first and second electrodes on a surface...

20060208658 - Light emitting device: The present invention relates to a light emitting device for preventing a cross-talk phenomenon. The light emitting device includes anode electrode layers, cathode electrode layers and a scan line. The anode electrode layers are disposed in a first direction. The cathode electrode layers are disposed in a second direction different...

20060208656 - Organic el device, driving method thereof, and electronic apparatus: An organic electroluminescent device including: a plurality of pixels, each having a red light emitting element to emit red light, a green light emitting element to emit green light, and a blue light emitting element to emit blue light; and a drive device adjusting a luminance ratio among the red...

20060208657 - Organic electro-luminescence device, driving method thereof and electronic apparatus: An organic electro-luminescence (EL) device including at least an emission layer between an anode and a cathode that are opposed to each other, including an anode buffer layer that is composed of an electrically conductive material and is provided between the anode and the emission layer, a cathode buffer layer...

20060208655 - Surface-emitting type device and its manufacturing method: A surface-emitting type device includes a substrate including a first face, a second face that is tilted with respect to the first face and has a plain index different from a plain index of the first face, and a third face that is tilted with respect to the second face...

20060208659 - Drive device for lighting equipment: A drive device for lighting equipment includes a rectifier circuit 2 that rectifies an output current of an alternating-current generator 1; a voltage converter circuit 3 that steps up or down a DC voltage of the rectifier circuit 2 to a predetermined voltage; and a semiconductor light-emitting device 51 that...

20060208660 - Inverter unit for vehicle: An inverter unit for vehicle (20) is formed in such a manner that a capacitor module (40) is stacked on the upper portions of a main inverter circuit module (32) and a sub inverter circuit module (34) so as to connect the corresponding external terminals by a bolt (66). Here,...

20060208661 - Multiple channel ballast and networkable topology and system including power line carrier applications: Control systems and methods for independent control of power systems, particularly lighting network branches, and separate control of individual branch components. Multi-branch systems comprise independently controllable branches that inter-communicate via PLC communications. In each branch, components such as ballasts, local control units, sensors, actuators, and repeaters, may exchange commands and...

20060208663 - Constant voltage power supply circuit and method of testing the same: A constant voltage power supply circuit is provided with a constant voltage circuit part to convert an input voltage into a predetermined constant voltage, a first excessive current protection circuit part to control the constant voltage circuit part so as to reduce the output voltage while maintaining an output current...

20060208664 - Control device for high intensity discharge bulb and method of controlling high intensity discharge bulb: Two types of rectangular waves having different numbers of driving pulses are applied to the HID bulb. By changing the combination of these two different types of rectangular waves to be supplied , the driving energy of the HID bulb is increased or decreased, thereby supply electric energy to the...

20060208662 - Low voltage dimmer: The present invention provides a magnetic low voltage dimmer circuit that reduces DC magnetizing current which may be present in a dimmer system. The dimmer circuit delivers an RMS value of an AC supply voltage to a load while preventing or reducing a DC magnetizing current from damaging the dimmer...

20060208665 - Pixel mirror based stage lighting system: A lighting system with a digital micromirror device which forms a digital godo system that is controllable on a pixel level. The device includes a number of sensitive electronic elements. The device is controlled by two different controllers: a digital signal processor which is effectively the number crunching portion, and...

20060208666 - Electronic lighting device for simulating a flame: An electronic lighting device for, and method of, simulating a flame comprises a plurality of light emitting devices coupled to control circuitry, which is configured to generate a plurality of control signals for controlling the periodicity of illumination and intensity of illumination of the plurality of light emitting devices. The...

20060208667 - Methods and apparatus for providing power to lighting devices: Methods and apparatus for providing power to devices via an A.C. power source, and for facilitating the use of LED-based light sources on A.C. power circuits that provide signals other than standard line voltages. In one example, LED-based light sources may be coupled to A.C. power circuits that are controlled...

20060208668 - Power supply control circuit and control method thereof: A power supply control circuit includes: a conducting part configured to be controllable in its a conducting amount for conducting a power supply current to a load circuit; a current change ratio detecting part detecting a change rate of the power supply current supplied to the load circuit; and a...

20060208669 - Light emitting diode multiphase driver circuit and method: A method and a circuit for driving light emitting diodes (LEDs) in multiphase are provided. A string of LEDs divided into groups connected to each other in series is provided. Each group is coupled to ground through separate conductive paths. A phase switch is provided in each conductive path. Increasing...

20060208670 - Light module with control of luminance and method for managing the luminance: The invention is directed to a light module, which allows the individual lamp unit to be replaced with a new one and the luminance of the newly-replaced lamp unit can be automatically or manually adjusted to get a uniform luminance. Wherein, information of a first relation table of a lamp...

20060208671 - Display device: A display device of the invention includes horizontal lines, longitudinal lines, electron emission elements, and a scanning circuit which performs the selection of the horizontal lines. The scanning circuit includes a non-selection voltage switch, a correction selection voltage switch, and an output voltage detection switch for the selected horizontal line...

20060208672 - High-power microwave system employing a phase-locked array of inexpensive commercial magnetrons: A high-power microwave generator employing a plurality of inexpensive commercial magnetron tubes cross-coupled by means of a secondary coupling path between each magnetron output pair, whereby a portion of the output energy from a first magnetron tube is injected into a second magnetron tube and a portion of the output...

20060202628 - Electrodeless lighting apparatus: An electrodeless lighting apparatus includes: a waveguide for guiding microwave energy generated from a microwave generator; a resonance unit coupled with an outlet of the waveguide and comprising at least two resonators having mesh structures which are slidingly coupled with each other in the longitudinal direction such that the height...

20060202629 - Three component protective head gear powered by a rechargeable battery: A three-component, protective headgear or helmet, and circuits therefor is provided with a battery-powered LED head lamp, which may be used by construction workers, search and rescue persons, cyclists, police, fireman, and the like. The battery may be replaceable or rechargeable and has long-term, uniform output characteristics driven by unique...

20060202631 - Device and method for driving for light-emitting display panel: There is provided a device for driving a light-emitting display panel in which output limiter means is added to a DC-DC converter which associates a boosting operation. In the drive device, even though a forward voltage of a monitor element increases to operates the limiter means, predetermined display quality can...

20060202630 - Display device and display module of movable body: A display device includes a display panel that has a plurality of pixels disposed in a matrix so as to correspond to intersections of a plurality of scanning lines and a plurality of data lines and a plurality of light-emitting elements provided in each of the plurality of pixels. The...

20060202633 - Organic el display device and method of driving the device: An organic EL display device is disclosed that prevents charging and discharging that do not contribute to light emission, thereby reducing power consumption. The organic EL display device comprises a plurality of first electrode elements, a plurality of second electrode elements crossing the first electrode elements, and organic light emitting...

20060202632 - Organic electroluminescent device, driving method thereof and electronic apparatus: An organic electroluminescent device, comprises: a plurality of scan lines; a plurality of data lines extending in a direction orthogonal to the scan lines; a light-emitting element arranged at each intersection of the scan lines and the data lines; and a drive device dividing one frame into a plurality of...

20060202634 - Mobile light: A mobile light is disclosed that produces a high level of illumination without glare using the DC power of a vehicle's battery and charging system. The mobile light uses a high-intensity discharge lamp with a control circuit that initially ignites the lamp using a voltage multiplier circuit and that maintains...

20060202635 - Driving circuit for multiple cold cathode fluorescent lamps backlight applications: The present invention provides a driving circuit for driving a light source. The driving circuit includes a serial-arranged transformers system having multiple primary windings and secondary windings; a first switch conducting current though a first path and a second switch conducting current though a second path. The first path is...

20060202640 - Arrangement and method for providing power line communication from an ac power source to a circuit for powering a load, and electronic ballasts therefor: An arrangement (900) and method (1000) for providing power line communication from an AC power source (910) to a circuit (900) for supplying power to a load (960), as well as electronic ballasts (20,30,40,70,80) that operate according to the method (1000). Method (1000) includes the steps of: providing (1010) an...

20060202639 - Discharge lamp lighting apparatus: The discharge lamp lighting apparatus includes a power section operating to generate a high voltage to be applied to a discharge lamp to trigger electrical discharge within the discharge lamp and to generate an AC voltage to be supplied to the discharge lamp to keep the discharge lamp in a...

20060202637 - Driving circuit and method of tuning a driving voltage of a light-emitting device utilizing a feedback mechanism: A driving circuit and method for driving a light-emitting device. The driver circuit includes a first bias circuit coupled to an output node of a first light-emitting device for providing a bias current to the first light-emitting device; and a voltage regulator coupled to an input node of the first...

20060202638 - Light-emitting device, image forming apparatus, and electronic apparatus: A light-emitting device includes a substrate having a plurality of light-emitting elements and a light emission region arranged on one surface thereof, light being emitted from one surface of the light emission region; and an integrated circuit chip that generates signals for controlling the plurality of light-emitting elements. The integrated...

20060202636 - Power conversion and voltage sag correction with regenerative loads: In dynamic voltage sag correctors and other power conversion equipment having a DC bus that is subject to over-voltage conditions due to power being fed back by a regenerative load, a bus discharge switching device and a discharge resistor are connected in series across the DC bus lines. The discharge...

20060202641 - Method and device for measuring color temperature: A method for measuring a color temperature (TC) of a light source (2) comprises the steps of: measuring the partial intensity of one predefined blue spectral conpponent (B); measuring the luminance (V); and calculating the quotient BN as representing the color temperature (TC). The color temperature (TC) is calculated on...

20060202642 - Cathode-ray tube display apparatus: The present invention relates to a cathode-ray tube display apparatus comprising a flyback transformer, comprising a vertical drive circuit for outputting a predetermined drive current; a vertical output part for outputting a vertical pulse for determining a vertical scanning interval according to an input vertical drive current; a vertical deflection...

20060202643 - Dynamic focus controller and control method of the same: The present invention relates to a dynamic focus controller of a television having a cathode ray tube (CRT), comprising a vertical parabola generator for generating a vertical parabola signal based on a vertical frequency of a television broadcast signal, an overlap parabola generator for outputting a horizontal and vertical overlap...

20060202644 - Linear accelerator: A linear accelerator comprises a series of accelerating cavities, adjacent pairs of which are coupled via coupling cavities, in which at least one coupling cavity comprises a rotationally asymmetric element that is rotateable thereby to vary the coupling offered by that cavity. A control means for the accelerator is also...

20060197452 - Apparatus and method for generating an output signal that tracks the temperature coefficient of a light source: An apparatus and method for generating an output signal that tracks the temperature coefficient of a light source are provided. A light source temperature coefficient tracking mechanism (e.g., a current source circuit) that generates an output signal, which tracks the temperature coefficient of the light source (e.g., temperature coefficient of...

20060197453 - Electron beam writing system and electron beam writing method: An electron beam writing technology which enables highly accurate deflection correction of a minute field used in an electron beam writing system is provided. In this system, a function to move an electron beam by a deflection means through high-speed deflection scanning so as to repeat formation of a cyclic...

20060197454 - Heater and heating device with heaters: A heating device in which uniform heating of an article to be processed is possible even in the case a temperature change which leads to a loss of the uniformity of the temperature distribution in a narrowly delineated area, and in which a reduction in the size of the device...

20060197455 - External electrode fluorescent lamp: Disclosed is an external electrode fluorescent lamp for use in a backlight improved in electrical discharge property by coating dielectric material on the inner sides of external electrodes. The external electrode fluorescent lamp comprises a lamp tube containing electric-discharge gas and fluorescent material to provide an electric-discharge space within the...

20060197456 - Lighting apparatus with flexible oled area illumination light source and fixture: Lighting apparatus includes a solid-state area illumination light source, having: a planar flexible substrate, a flexible organic light emitting diode (OLED) layer deposited on the flexible substrate, the organic light emitting diode layer including first and second electrodes for providing electrical power to the OLED layer, a flexible encapsulating cover...

20060197457 - Magnetically enhanced capacitive plasma source for ionized physical vapor deposition: A capacitive plasma source for iPVD is immersed in a strong local magnetic field, and maybe a drop-in replacement for an inductively coupled plasma (ICP) source for iPVD. The source includes an annular electrode having a magnet pack behind it that includes a surface magnet generally parallel to the electrode...

20060197458 - Oled display with improved active matrix circuitry: An OLED display for producing a multicolor image includes a plurality of pixels including three different colored addressable gamut-pixels and a fourth addressable within-gamut-pixel, each pixel having a separately addressable organic light-emitting diode with first and second electrodes and one or more organic light emissive layers provided between the electrodes;...

20060197459 - Layout configuration of flat display device: A layout configuration of a flat display device includes a display panel, a one layer printed circuit board and a backlight unit. The display panel has a plurality of pixel regions. The single printed circuit board has one side mounted thereon a control circuit, a driving circuit, a power unit...

20060197461 - Color electroluminescence display device: A part of a capacitor (5) is disposed in the horizontal direction of a luminescent region (7) so as to secure a gap in the horizontal direction of the luminescent region. As the distance between adjoining pixels in the horizontal direction is thus secured, color mixing is unlikely, even when...

20060197462 - Method of driving organic el device and display device: According to one aspect of the present invention, it is possible to sufficiently perform the discharging of charge without lowering the light emitting efficiency of an organic EL device and hence, the device can exhibit the light emitting efficiency higher than a conventional organic EL device and, at the same...

20060197460 - Organic electroluminescent device, pixel structure, array and driving method thereof: An organic electroluminescent device includes a first organic thin film transistor, a second organic thin film transistor and at least an organic functional layer. The organic functional layer is disposed between the second organic thin film transistor and the first organic thin film transistor. By applying voltages in the first...

20060197463 - Continuous current control circuit modules of series string bulbs type (ii): The invention relates to a continuous current control circuit module of series string bulbs type (II), which can maintain the normal current and voltage across each of the bulbs when any of series connected bulbs burn out. The string includes a shunt in every bulb assemblies, which has an auxiliary...

20060197464 - Integrated circuit with low power consumption and high operations speed: An integrated circuit includes a functional circuit module operating at a voltage range between a first voltage level and a second voltage level lower than the first voltage level. A power supply switch module, coupled between the functional circuit module and one or more power supplies, is controlled by one...

20060197465 - Method and apparatus for single-ended conversion of dc to ac power for driving discharge lamps: The present disclosure introduces a simple method and apparatus for converting DC power to AC power, and, specifically, to single-ended inverter circuits for driving discharge lamps such as a Cold Cathode Fluorescent Lamp (CCFL) or an External Electrode Fluorescent Lamp (EEFL). Among other advantages, these circuits offer nearly symmetrical voltage...

20060197467 - Discharge lamp lighting circuit: A DC/AC converter 3 performs AC conversion and a boosting function upon the reception of a DC voltage. A control unit 6 controls the DC/AC converter 3 to perform the lighting control of a discharge lamp. The DC/AC converter includes an AC conversion transformer 7, switching devices 5H, 5L and...

20060197466 - Parallel drive cold cathode fluorescent lamp device: A cold cathode fluorescent lamp (CCFL) is disclosed that provides a structure which may be driven in parallel. For this purpose, a lamp drive device comprises a plurality of CCFLs connected in parallel, a first current limiting unit connected to the plurality of CCFLs to control the magnitude of supplied...

20060197470 - Automotive high intensity discharge lamp ballast circuit: An electronic ballast for driving a high intensity discharge (HID) lamp is provided. The electronic ballast includes a voltage boost stage for receiving a DC input voltage and outputting a boosted DC output voltage with a controlled current. It further includes a switching stage for converting the boosted DC output...

20060197469 - Light emitting diode (led) driver: An LED driver is provided for driving a plurality of light emitting diodes (LEDs), having a current controller to control a power supply of a predetermined power source unit to establish a current in the plurality of LEDs at a predetermined target current value and which sequentially changes corresponding to...

20060197468 - Lighting apparatus for projector: A lighting apparatus for a projector comprises a control module, a lamp driver and a transient voltage suppression circuit, in which the control module is used for generating a lighting signal, the lamp driver is used for receiving the lighting signal and controlling a lamp according to the lighting signal,...

20060197472 - Method and device for lighting an electronic or electromechanical apparatus: The present invention is a lighting device for an electronic or electromechanical apparatus such as a timepiece of the wristwatch type. The invention includes a device displaying time-related or other information, this lighting device including a light source for lighting the display device. The lighting device is characterized in that...

20060197471 - System and method for reducing flicker of compact gas discharge lamps at low lamp light output level: A lamp lighting system allows dimming of a compact gas discharge lamp to a low light output level without perceptible flicker. When the system receives a request to dim the lamp to the low level, the lamp is operated at an intermediate output level prior to operating the lamp at...

20060197473 - Discharge lamp lighting apparatus and discharge lamp lighting method: A lighting control technology for a discharge lamp can be capable of suppressing start-up variations of luminous flux in consideration of variations in lamp voltage. A discharge lamp lighting apparatus can include a lamp voltage detection circuit and a lamp current detection circuit for detecting a lamp voltage and a...

20060197474 - Modular lighting system: A modular lighting system includes a multiple conductor wire, including a common data wire, and a plurality of nodes, disposed along the multiple conductor wire. Each node includes an LED and a node microprocessor, having a unique address. The node microprocessor is configured to independently control illumination of the LED...

20060197475 - High-pressure discharge lamp, lighting method and lighting device for high-pressure discharge lamp and, high-pressure discharge lamp device, and lamp unit, image display unit, head light unit: In a high-pressure discharge lamp that includes a bulb formed from a light emitting part having a discharge space therein and a pair of sealing parts connected to the light emitting part, and an electrode pair disposed within the discharge space, a section of a proximity conductor is wound substantially...

20060197452 - Apparatus and method for generating an output signal that tracks the temperature coefficient of a light source: An apparatus and method for generating an output signal that tracks the temperature coefficient of a light source are provided. A light source temperature coefficient tracking mechanism (e.g., a current source circuit) that generates an output signal, which tracks the temperature coefficient of the light source (e.g., temperature coefficient of...

20060197453 - Electron beam writing system and electron beam writing method: An electron beam writing technology which enables highly accurate deflection correction of a minute field used in an electron beam writing system is provided. In this system, a function to move an electron beam by a deflection means through high-speed deflection scanning so as to repeat formation of a cyclic...

20060197454 - Heater and heating device with heaters: A heating device in which uniform heating of an article to be processed is possible even in the case a temperature change which leads to a loss of the uniformity of the temperature distribution in a narrowly delineated area, and in which a reduction in the size of the device...

20060197455 - External electrode fluorescent lamp: Disclosed is an external electrode fluorescent lamp for use in a backlight improved in electrical discharge property by coating dielectric material on the inner sides of external electrodes. The external electrode fluorescent lamp comprises a lamp tube containing electric-discharge gas and fluorescent material to provide an electric-discharge space within the...

20060197456 - Lighting apparatus with flexible oled area illumination light source and fixture: Lighting apparatus includes a solid-state area illumination light source, having: a planar flexible substrate, a flexible organic light emitting diode (OLED) layer deposited on the flexible substrate, the organic light emitting diode layer including first and second electrodes for providing electrical power to the OLED layer, a flexible encapsulating cover...

20060197457 - Magnetically enhanced capacitive plasma source for ionized physical vapor deposition: A capacitive plasma source for iPVD is immersed in a strong local magnetic field, and maybe a drop-in replacement for an inductively coupled plasma (ICP) source for iPVD. The source includes an annular electrode having a magnet pack behind it that includes a surface magnet generally parallel to the electrode...

20060197458 - Oled display with improved active matrix circuitry: An OLED display for producing a multicolor image includes a plurality of pixels including three different colored addressable gamut-pixels and a fourth addressable within-gamut-pixel, each pixel having a separately addressable organic light-emitting diode with first and second electrodes and one or more organic light emissive layers provided between the electrodes;...

20060197459 - Layout configuration of flat display device: A layout configuration of a flat display device includes a display panel, a one layer printed circuit board and a backlight unit. The display panel has a plurality of pixel regions. The single printed circuit board has one side mounted thereon a control circuit, a driving circuit, a power unit...

20060197461 - Color electroluminescence display device: A part of a capacitor (5) is disposed in the horizontal direction of a luminescent region (7) so as to secure a gap in the horizontal direction of the luminescent region. As the distance between adjoining pixels in the horizontal direction is thus secured, color mixing is unlikely, even when...

20060197462 - Method of driving organic el device and display device: According to one aspect of the present invention, it is possible to sufficiently perform the discharging of charge without lowering the light emitting efficiency of an organic EL device and hence, the device can exhibit the light emitting efficiency higher than a conventional organic EL device and, at the same...

20060197460 - Organic electroluminescent device, pixel structure, array and driving method thereof: An organic electroluminescent device includes a first organic thin film transistor, a second organic thin film transistor and at least an organic functional layer. The organic functional layer is disposed between the second organic thin film transistor and the first organic thin film transistor. By applying voltages in the first...

20060197463 - Continuous current control circuit modules of series string bulbs type (ii): The invention relates to a continuous current control circuit module of series string bulbs type (II), which can maintain the normal current and voltage across each of the bulbs when any of series connected bulbs burn out. The string includes a shunt in every bulb assemblies, which has an auxiliary...

20060197464 - Integrated circuit with low power consumption and high operations speed: An integrated circuit includes a functional circuit module operating at a voltage range between a first voltage level and a second voltage level lower than the first voltage level. A power supply switch module, coupled between the functional circuit module and one or more power supplies, is controlled by one...

20060197465 - Method and apparatus for single-ended conversion of dc to ac power for driving discharge lamps: The present disclosure introduces a simple method and apparatus for converting DC power to AC power, and, specifically, to single-ended inverter circuits for driving discharge lamps such as a Cold Cathode Fluorescent Lamp (CCFL) or an External Electrode Fluorescent Lamp (EEFL). Among other advantages, these circuits offer nearly symmetrical voltage...

20060197467 - Discharge lamp lighting circuit: A DC/AC converter 3 performs AC conversion and a boosting function upon the reception of a DC voltage. A control unit 6 controls the DC/AC converter 3 to perform the lighting control of a discharge lamp. The DC/AC converter includes an AC conversion transformer 7, switching devices 5H, 5L and...

20060197466 - Parallel drive cold cathode fluorescent lamp device: A cold cathode fluorescent lamp (CCFL) is disclosed that provides a structure which may be driven in parallel. For this purpose, a lamp drive device comprises a plurality of CCFLs connected in parallel, a first current limiting unit connected to the plurality of CCFLs to control the magnitude of supplied...

20060197470 - Automotive high intensity discharge lamp ballast circuit: An electronic ballast for driving a high intensity discharge (HID) lamp is provided. The electronic ballast includes a voltage boost stage for receiving a DC input voltage and outputting a boosted DC output voltage with a controlled current. It further includes a switching stage for converting the boosted DC output...

20060197469 - Light emitting diode (led) driver: An LED driver is provided for driving a plurality of light emitting diodes (LEDs), having a current controller to control a power supply of a predetermined power source unit to establish a current in the plurality of LEDs at a predetermined target current value and which sequentially changes corresponding to...

20060197468 - Lighting apparatus for projector: A lighting apparatus for a projector comprises a control module, a lamp driver and a transient voltage suppression circuit, in which the control module is used for generating a lighting signal, the lamp driver is used for receiving the lighting signal and controlling a lamp according to the lighting signal,...

20060197472 - Method and device for lighting an electronic or electromechanical apparatus: The present invention is a lighting device for an electronic or electromechanical apparatus such as a timepiece of the wristwatch type. The invention includes a device displaying time-related or other information, this lighting device including a light source for lighting the display device. The lighting device is characterized in that...

20060197471 - System and method for reducing flicker of compact gas discharge lamps at low lamp light output level: A lamp lighting system allows dimming of a compact gas discharge lamp to a low light output level without perceptible flicker. When the system receives a request to dim the lamp to the low level, the lamp is operated at an intermediate output level prior to operating the lamp at...

20060197473 - Discharge lamp lighting apparatus and discharge lamp lighting method: A lighting control technology for a discharge lamp can be capable of suppressing start-up variations of luminous flux in consideration of variations in lamp voltage. A discharge lamp lighting apparatus can include a lamp voltage detection circuit and a lamp current detection circuit for detecting a lamp voltage and a...

20060197474 - Modular lighting system: A modular lighting system includes a multiple conductor wire, including a common data wire, and a plurality of nodes, disposed along the multiple conductor wire. Each node includes an LED and a node microprocessor, having a unique address. The node microprocessor is configured to independently control illumination of the LED...

20060197475 - High-pressure discharge lamp, lighting method and lighting device for high-pressure discharge lamp and, high-pressure discharge lamp device, and lamp unit, image display unit, head light unit: In a high-pressure discharge lamp that includes a bulb formed from a light emitting part having a discharge space therein and a pair of sealing parts connected to the light emitting part, and an electrode pair disposed within the discharge space, a section of a proximity conductor is wound substantially...