Abstract: A system for driving a plurality of lamps comprises a lamp module, an inverter circuit providing currents to the lamp module, an interface for conveying the currents, a splitter, a balance unit, and a fault detecting circuit. The splitter receives the currents provided by the inverter circuit through the interface and distributing the currents to the plurality of lamps. The balance unit balances the currents provided to the plurality of lamps in the lamp module. The fault detecting circuit detects and reports a condition of at least one of the lamps by detecting signals generated from the inverter circuit. The fault detecting circuit receives the signal from a point in the system, such that the fault detecting circuit can detects the signals before the signal undergoes the distributing by the splitter.

Abstract: The cold cathode lamp includes a light-transmissive insulating tube; the first and second internal electrodes disposed inside the insulating tube; the first and second external electrodes disposed outside the insulating tube and connected to the first and second internal electrodes, respectively; the first and second insulating members covering the first and second external electrodes, respectively; the first opposite electrode opposite the first external electrode with the first insulating member interposed therebetween, the second opposite electrode opposite the second external electrode with the second insulating member interposed therebetween, the first insulating layer covering the outer edges of the first opposite electrode; and the second insulating layer covering the outer edges of the second opposite electrode. It is possible to light up a plurality of cold cathode lamps that are connected in parallel to a power supply.

Abstract: A cold cathode lamp includes a light-transmitting insulating tube, first and second internal electrodes arranged inside the insulating tube, first and second external electrodes arranged outside the insulating tube and respectively connected with the first and second internal electrodes, first and second insulating bodies respectively covering the first and second external electrodes, a first counter electrode arranged opposite to the first external electrode via the first insulating body, and a second counter electrode arranged opposite to the second external electrode via the second insulating body. The first (second) counter electrode has a portion which does not face the first (second) external electrode, and the space between this portion and the insulating tube is filled with the first (second) insulating body. A plurality of such cold cathode lamps can be lit by being connected in parallel with a power supply.

Abstract: The invention relates to a transformer (10) for balancing the current in an AC circuit, comprising a primary winding (12), a secondary winding (14) and a main inductance (16). The transformer is characterized in that a capacitive component is connected in parallel to the primary winding (12) or to the secondary winding (14), whose capacitance value is determined such that the reactive current IL brought about by the main inductance (16) is substantially compensated. A transformer of this kind can preferably be employed in current balancing circuits as used, for example, in systems for backlighting LCD displays.

Abstract: In a lighting unit for operating lamps (LA1, LA2) of a different color temperature, a number of predetermined color points can be adjusted. The color points are chosen so that the color difference calculated in the CIELAB space is the same for subsequent adjustable color points.

Abstract: Systems and methods for illumination and color management in a system having a plurality of color sources and a plurality of color sensors, wherein there are more color sources than color sensors are described herein. An embodiment of the method includes emitting a plurality of different colors of light from at least two of the color sources, wherein the plurality of colors consist of different intensities of light emitted by the plurality of color sources. Colors of light emitted by the at least two color sources are detected using at least one of the color sensors. The color rendering index for each of the plurality of colors emitted is determined. A color of light to be emitted by the light sources is selected. The intensities of light to be emitted by the color sources is selected, based at least in part on the color rendering index, to achieve the selected color of light.

Abstract: A method according to one embodiment may include generating AC voltage and current and a striking voltage. The method of this embodiment may also include generating striking voltage and steady-state voltage for at least two lamp loads. The method of this embodiment may also include coupling at least two lamp loads in parallel. The method of this embodiment may also include coupling current balancing circuitry to the at least two lamp loads and providing, by the current balancing circuitry simultaneous striking voltage to the at least two lamps loads. The method of this embodiment may also include balancing, by the current balancing circuitry, AC current through the at least two lamp loads. Of course, many alternatives, variations, and modifications are possible without departing from this embodiment.

Abstract: The present invention relates to a lighting system (1) with a user interface (3) for controlling the lighting color and/or intensity of a lighting unit (2) determining the lighting conditions in a room. The user interface (3) is based on a system comprising a detection device (4) and transponders (6). Bringing the transponders (6) within the detection device (4) so that they will be detected causes the transponders (6) to send a response signal, which signal controls the lighting color and/or intensity of the lighting unit (2). Each transponder (6) is programmed to control a particular color or a specific light intensity.

Abstract: A system and architecture for managing lighting through a seamless low-voltage bus network is disclosed. The system comprises a plurality of control units that serve as nodes for integrating devices, such as light fixtures, control switches and sensors into the bus. Each of the control units preferably includes a printed circuit board and node interconnects for assembling the low-voltage bus and for integrating the devices. Alternatively, the system comprises a central hub with a master printed circuit control board and a plurality of interconnects for assembling the bus and for integrating the devices.

Abstract: Disclosed are a new Mercury-free flat light source structure capable of enhancing and adjusting brightness, maintaining stable and uniform discharge, and improving luminous efficiency, and a large flat light source apparatus using the same Mercury-free flat light source structure as a unit cell capable of adjusting the brightness and causing local discharges in selected areas, and a driving method thereof.

Abstract: A light emitting device having an element group, a plurality of first driving circuits and a plurality of second driving circuits is provided. The element group is constituted by a plurality of light emitting elements arranged in a first direction. Each of the first driving circuits is configured to drive a corresponding one of a plurality of first light emitting elements belonging to the element group. Each of the second driving circuits is configured to drive a corresponding one of a plurality of second light emitting elements belonging to the element group. At least a portion of the element group is arranged between the first driving circuits and the second driving circuits in a second direction being different from the first direction. A semiconductor layer of at least one transistor included in each of the first driving circuits and a semiconductor layer of at least one transistor included in each of the second driving circuits are arranged at the same positions in the first direction.

Abstract: The present invention includes a lighting control system provided with two or more lighting devices and one or more illumination comparing devices; wherein the illumination comparing device supplies to the lighting devices a comparison result in which a sampled illumination of an arbitrary position and a target illumination are compared; the two or more lighting devices carry out a judgment based on the comparison result obtained from the illumination comparing device and repetitively increase/decrease their respective light intensities; and the illumination of the arbitrary position is substantially controlled to the target illumination, and with this lighting control system, a predetermined position can be controlled to a desired illumination.

Abstract: A lamp driving apparatus wherein a plurality of two-winding balance circuits are connected to a plurality of parallel-connected lamp groups so that all of the lamps may be illuminated even though ambient conditions cause some of the lamps to have low resistance. Capacitors are connected to first electrodes and certain of the balance coil windings are connected to second electrodes of one of the lamp groups while, in a second lamp group, others of the balance coil windings are connected to the first electrodes and capacitors are connected to the second electrodes thereof, current flowing through balance coil windings to some lamps being affected by current flowing through balance coil windings to other lamps.

Abstract: A method and an apparatus for spectrum synthesis for use in a flash unit, wherein the spectrum synthesis includes combining a plurality of emissive light sources in order to provide a combine output beam and producing the output spectrum for the combined output beam at least based on a reference spectrum. The reference spectrum can be obtained by sensing the spectrum of ambient light or selected from a plurality of stored spectra. The flash unit has at least two emissive light sources and each of the light sources can be adjusted relative to each other so that the outputs from the light sources can mimic a selected illumination scenario. It is possible to use a mixture of quantum dots to tailor each light source so that the combined spectra from different light sources can reasonably mimic a number of frequently used illumination scenario.

Abstract: A system for dimming one or more light sources includes a first light source that emits a light of a first brightness according to an operating condition of the first light source, a second light source that emits a light of a second brightness according to an operating current of the second light source, wherein the light of the first brightness is different than that of the light of the second brightness, and one or more components that references the operating condition of the first light source, wherein, in response to the referenced operating condition of the first light source, the one or more components modifies the operating current of the second light source to substantially match the light of the second brightness to the light of the first brightness. A method for dimming one or more light sources is also disclosed.

Abstract: A fluorescent lamp holder combination device includes a main lamp holder and an auxiliary lamp holder set, which is provided with an auxiliary lamp holder. The main lamp holder is internally configured with a multifunction ballast, which is electrically connected to a conducting portion. Each of the conducting portions is electrically connected to a connecting portion of each of the auxiliary lamp holders by means of a set of conducting cables, thereby enabling parallel connection between each of the auxiliary lamp holders using the single multifunction ballast, and achieving the effectiveness to enable the single multifunction ballast to provide stable rectification and energy saving for the auxiliary lamp holders. Furthermore, a starting capacitor and current-limiting inductor can be disposed within each of the auxiliary lamp holders, thereby reducing use-cost of the set of conducting cables while facilitating maintenance of the starting capacitors and the current-limiting inductors.

Abstract: In accordance with the invention, there are electron emitters, charging devices, and methods of forming them. An electron emitter array can include a plurality of nanostructures, each of the plurality of nanostructures can include a first end and a second end, wherein the first end can be connected to a first electrode and the second end can be positioned to emit electrons, and wherein each of the plurality of nanostructures can be formed of one or more of oxidation resistant metals, doped metals, metal alloys, metal oxides, doped metal oxides, and ceramics. The electron emitter array can also include a second electrode in close proximity to the first electrode, wherein one or more of the plurality of nanostructures can emit electrons in a gas upon application of an electric field between the first electrode and the second electrode.

Abstract: A Communication Diode Driver Circuit (CDDC) for selectively illuminating communication diodes (CDs) in response to incoming digital data pulses with a LED drive current ILED(t) close to a nominal LED drive current IN therefor in a steady state operation of the CDDC. The CDDC includes a driver unit for driving the LED drive current ILED(t), and a closed loop feedback unit for continuously monitoring the LED drive current ILED(t) for providing a variable shift voltage SV(t). The driver unit includes a shift amplifier for combining a pulsed analog data voltage ADV(t) corresponding to incoming digital data pulses, and the shift voltage SV(t).

Abstract: The present inventions concerns a display system (2) for displaying multiplex information, whereby an individual selection of information is individually addressed to a different user or user groups, whereby the display system for displaying multiplex information comprises at least one display panel of a plurality of light emitting dot-like means and a plurality of sensors (6a, 6b), whereby a user or user groups are located by sensor so that individual information can be individually addressed depending on the position of each sensor-located user or user groups.

Abstract: An offline control circuit of LED driver controls the maximum voltage and the maximum current of a plurality of LEDs. A switching circuit generates a plurality of LED currents through a transformer. A voltage-feedback circuit generates a voltage loop signal in response to the voltage across the LEDs. A current-feedback circuit senses a plurality of LED currents for generating a current loop signal in response the maximum current of the LEDs. A buffer circuit generates a feedback signal in accordance with the voltage loop signal and the current loop signal. The feedback signal is coupled to the switching circuit through an optical-coupler for controlling the maximum voltage and the maximum current of the LEDs.

Abstract: Semiconductor light emitting circuits include semiconductor light emitting diodes that are serially connected between a pair of input terminals. Four layer semiconductor devices, such as Shockley diodes and/or thyristors are also provided, a respective one of which is connected across a respective one of the semiconductor light emitting diodes. The four layer semiconductor devices can allow a string of light emitting diodes to continue to be lit if one light emitting diode fails.

Abstract: A light regulation device includes at least one light sensor which provides at its output a real brightness value, at least one regulator to which a set brightness value can be supplied, besides the real value, and a number n of output connections, n being greater than or equal to two. Each output connection is coupled to the output of a regulator in order to modify the light flux which can be supplied to at least one of the lighting elements. The regulator is designed to determine a difference between set and real values, to verify whether this difference lies within or outside a predeterminable tolerance range, and, in the event that the difference lies outside the tolerance range, to modify accordingly the light flux from the lighting elements which can be connected to the n output connections. At least one limit of the tolerance range depends on the actual light flux value.

Abstract: Methods and apparatus are disclosed for balancing currents passing through multiple circuit loads and in some cases through fluorescent lamps. Multiple-leg magnetic cores are wound in specific manners to simplify current balancing. Conventional three- or more than three-legged EE- and EI-type magnetic cores, with disclosed windings are used to balance current in circuits with multiple branches, such as connected Cold Cathode Fluorescent Lamps (CCFLs).

Abstract: An apparatus and method for driving a lamp are provided. In one embodiment, an inverter having four switching elements is split into two inverter arms that are deployed at separate terminals of a floating lamp structure to achieve even light output. A controller drives both inverter arms such that power switching lines do not cross the floating lamp structure. In one embodiment, the controller adjusts the brightness of the lamp structure by adjusting the phase difference between outputs of a first inverter arm relative to a second inverter arm. In one embodiment, the controller adjusts the brightness by symmetrically pulse width modulating the outputs of the first inverter arm and the second inverter arm.

Abstract: A circuit for driving an array of Light Emitting Diode (LED) strings at a constant current has a plurality of LEDs. A plurality of LED drivers is provided wherein a single LED driver is coupled to each of the plurality of LEDs. A voltage reference generator is used for sending a voltage reference signal to each LED driver. The voltage reference generator is external to each of the plurality of LED drivers. An input line voltage is coupled to the voltage reference generator. A clock generator is provided for sending to a clock signal to each of the plurality of LED drivers. The clock generator is external to each of the plurality of LED drivers. A low-frequency PWM dimming input signal is coupled to each of the plurality of LED drivers to allows dimming of the LEDs.

Abstract: A backlight unit includes: a plurality of cold cathode fluorescent lamps; a plurality of capacitors respectively connected to both ends of each of the cold cathode fluorescent lamps, the capacitors having respective impedance that are selected to allow the same amount of current to flow through each of the plurality of the cold cathode fluorescent lamps; and an inverter connected to the capacitors of the cold cathode fluorescent lamps.

Abstract: A light emitting diode (LED) lamp assembly comprises an LED string and a plug. The LED string comprises multiple LEDs connected together in series. The plug is connected to the LED string and an external AC power source and has a circuit board. The circuit board is mounted in the plug, turns the LED string on or off, converts AC power to DC power and comprises an AC/DC circuit, a control circuit and a switch circuit. The AC/DC circuit is connected to the external AC power source and the LED string and converts AC power to DC power to provide operating power for the LEDs. The control circuit is connected to the AC/DC circuit to regulate illumination of the LEDs. The switch circuit is connected between the LED string and the AC/DC circuit and is controlled by the control circuit to turn the LEDs on or off.

Abstract: An improved LCD back light panel lamp connecting structure. A high voltage end and a feedback end of the adjacent cold cathode fluorescent lamp (CCFL) modules alternate, and the feedback end of the CCFL is coupled to a single return board. The return board is coupled to a pulse width modulation (PWM) control unit so that the return board feeds back the current to the PWM control unit. The high voltage end of the CCFL is coupled to a transformer.

Abstract: An inverter circuit includes a power supply which outputs an alternating current voltage, an inverter transformer having one primary coil connected to an output terminal of the power supply and pairs of secondary coils which supply an alternating current high voltage, induced by the one primary coil, to pairs of discharge tubes and a plurality of balance transformers having primary coils serially connected between respective pairs of the pairs of secondary coils of the inverter transformer, and having secondary coils corresponding to the primary coils of the plurality of balance transformers, wherein the secondary coils of the plurality of balance transformers are serially connected to form a loop.

Abstract: An electronic ballast includes an inductor, an output transformer, at least two switching elements, a control circuit, a clamping circuit, and at least two return circuits. The inductor is electrically coupled to a DC power supply. The control circuit is electrically connected to the inductor, the output transformer and the switching elements for controlling on/off statuses of the switching elements. The clamping circuit is electrically connected to the inductor, and limits a node voltage among the inductor, the control circuit, and the clamping circuit below a threshold value and generates an output current on condition that the node voltage is larger than the threshold value. Each of the return circuits is electrically connected to the clamping circuit and coupled to both terminals of one of the switching elements for transmitting the output current to the output transformer, thereby permitting a reverse voltage of the switching elements within a maximum allowable range of the switching elements.

Abstract: An article carrier assembly for attachment to a vehicle roof panel comprises two siderails and at least one cross-rail releasably stowed on one of the siderails. Attachment of the cross-rail to the siderails is carried out with the use of latching mechanisms. The mechanism is composed of a stanchion mounted on the cross-rail, with a lever pivotally placed therein, and of a lock plate assembly slidably attached to the siderail. For deployment of the assembly, the stanchion is put on the lock plate assembly which becomes engaged therewith upon turning the lever. The structure of the mechanism contributes to preventing the roof panel from being damaged upon the deployment.

Abstract: A cold cathode tube lighting device is provided which is capable of achieving stable luminance when driven by applying driving pulses to input terminals on both sides of each of two or more cold cathode tubes. Each of currents flowing through coils in each of coil units on both sides of each of two or more cold cathode tubes is detected by voltage detecting sections and a tube current flowing through each of the cold cathode tubes based on a value obtained by adding each of the currents using an adder and a duty ratio of each of driving pulses is controlled so that the tube current becomes a specified current value to keep the luminance of the cold cathode tubes constant.

Abstract: A transformer for driving multiple lamps includes a core, a primary winding set, a secondary winding set and a balancing winding set. The primary winding set winds around the core and includes a first primary coil. The secondary winding set winds around the core and includes a first secondary coil. The balancing winding set winds around the core and includes a first balancing coil and a second balancing coil which wind around the core in a combinative way. The primary winding set, the secondary winding set and the balancing winding set have the same magnetic-flux loop in the core.

Abstract: A transformer for driving multi-lamps and a backlight module thereof are provided. The transformer comprises a primary winding, a secondary winding, a core, a first bobbin and a second bobbin. The primary winding comprises a primary coil. The secondary winding comprises a secondary coil and a plurality of auxiliary coils whose turns are substantially equal. The core has a first side and a second side. The first bobbin and the second bobbin are respectively disposed on the first side and the second side for winding around the primary coil, the secondary coil and the auxiliary coils.

Abstract: A Light-Emitting Diode (LED) driver circuit is disclosed that controls the brightness of light generated by a LED that is coupled between a first terminal and a second terminal in response to a user supplied brightness control signal. A constant current source generates a constant current that is supplied to the LED and to a shunt circuit, which his connected in parallel with the LED. A brightness control circuit generates a pulse signal having a duty cycle that is proportional to the brightness control signal, and controls the shunt circuit such that, when said pulse signal is high, the constant current is passed through the shunt circuit and the LED is turned off, and when the pulse signal is low, the constant current is passed through the LED. The duty cycle of the brightness control signal is adjusted to adjust the LED's brightness, while the LED color remains constant.

Abstract: An improved LCD back light panel lamp connecting structure comprises cold cathode fluorescent lamps (CCFL), and adjacent CCFL modules having high voltage ends and feedback ends arranged alternately, and the feedback ends on both sides of the CCFLs respectively coupled to two return boards. The feedback end of the CCFL is coupled to a proximate return board, and the return board is disposed separately at both ends of the CCFLs. Two return boards are coupled to a pulse width modulation (PWM) control unit so that the two return boards feed back the current to the PWM control unit. The high voltage end of the CCFL is coupled to a transformer.

Abstract: A discharge lamp lighting circuit includes a plurality of discharge lamps, a driving circuit, a control circuit, an open protection circuit, which are connected in series. The open protection circuit includes an open control circuit, a delay circuit, and a plurality of open detecting circuits connected in series. Each of the open detecting circuits is connected to a corresponding one of the discharge lamps. One terminal of the open control circuit is connected to the control circuit, and the other terminal of the open control circuit is connected to one terminal of the delay circuit and a predetermined one of the open detecting circuits. The other terminal of the delay circuit is connected to another predetermined one of the open detecting circuits and ground.

Abstract: A lighting device for a display device includes a plurality of light sources, a power source arranged to provide drive power for the light sources, a common electrode arranged to supply the drive power to the plurality of light sources, a plurality of holder electrodes arranged to hold the respective light sources and supply the drive power from the common electrode individually to the respective light sources, and a dielectric portion provided between the common electrode and each of the holder electrodes.

Abstract: Disclosed herein is a backlight apparatus for controlling a backlight wherein light emitting devices for emitting light of red, green and blue and a switching device for switching on or off light emission of the light emitting devices are provided for each of a plurality of divisional regions formed by division of a lighting region such that the light emission luminance can be varied for each of the regions, the backlight apparatus including: light emission luminance control means; current value storage means; and current control means.

Abstract: A transformer includes a first bobbin, a second bobbin, a primary winding and at least four secondary windings. The first bobbin has a first primary winding area and at least two first secondary winding areas. The first primary winding area is located between the first secondary winding areas. The second bobbin is combined with the first bobbin and has a second primary winding area and at least two second secondary winding areas. The second primary winding area is located between the second secondary winding areas. The primary winding is wound around the first primary winding area and the second primary winding area. The secondary windings are respectively wound around the first secondary winding areas and the second secondary winding areas.

Abstract: A back light unit for a display apparatus having a power supply includes: a lamp part having a plurality of lamps; and an inverter board which is provided on a path through which power is supplied from the power supply to the lamp part, and includes a connector assembly provided on one side of the inverter board, the connector assembly including at least one female connector in which a plurality of socket accommodators provided to supply the power to the lamps is formed as one body, and at least one male connector on which a plurality of socket connectors connected to the socket accommodators is formed as one body.

Abstract: A multi-lamp driver t disclosed, comprising a power driver coupled to a plurality of lamps to supply power thereto, a feedback circuit coupled to at least one of the lamps to generate a feedback signal, a control circuit coupled between the feedback circuit and the power driver to control the power driver according to an illumination control signal and the feedback signal for total illumination adjustment of the lamps, and at least one switch controlled by the control circuit to turn at least one of the lamps on or off. In a total illumination adjustment of the lamps, the switch turns on or off timely. The difference between the maximum and minimum value of the total illumination of the lamps is thus increased.

Abstract: A transformer includes: a primary winding receiving portion having a primary winding wound around an axis; and a pair of secondary winding receiving portions each having a secondary winding wound around an axis and disposed on the opposite sides of the first primary winding receiving portion with a gap left in the axial direction. The gaps are formed in a size of a value higher than a first predetermined value, and the coupling coefficients between the first primary winding and the two secondary windings are set lower than a second predetermined value by the gaps.

Abstract: A transformer for driving multiple lamps includes a core, a primary winding set, a secondary winding set and a balancing winding set. The primary winding set winds around the core and includes a first primary coil. The secondary winding set winds around the core and includes a first secondary coil. The balancing winding set winds around the core and includes a first balancing coil and a second balancing coil which wind around the core in a combinative way. The primary winding set, the secondary winding set and the balancing winding set have the same magnetic-flux loop in the core.

Abstract: The invention relates to the supply of lamps (8?, 8??) of at least two different lamp types, of which a first lamp type (8??) has a wattage which is approximately a whole multiple of the wattage of a second lamp type (8?), whereby the same ballast devices (1) are used, embodied for the direct supply of the second lamp type (8?) and which may be operated in parallel for the supply of the first lamp type (8??). The correct connection of a suitable lamp (8?, 8?, 8??) to the ballast device (1) is monitored by means of a signal exchange between ballast device (1) and lamps (8?, 8?, 8??) before switching on the supply line of the ballast device (1).

Abstract: The present invention provides a system for controlling one or more operating unites in an inductive power transfer (IPT) system. Each operating unit includes a pick-up coil that takes power from a primary conductor or track over an air gap. The operating unit is controlled by frequency modulating the primary conductor power supply to send a control instruction which is decoded by the operating unit. The instruction is decoded by generating a signal using a local oscillator in the operating unit and using the signal to detect changes in the frequency of the current in the primary conductor. Such a system can be used, for example, to control inductively powered road-studs that include a light source for controlling traffic on a roadway. A narrow band modulated data transmission system and method for controlling an operating unit are also provided.

Abstract: A two-end driven lamp controlling device includes a direct-current (DC) power supply, square wave switches, a square wave controller, a plurality of lamps, a plurality of starting transformers and a plurality of lamps commonly connective transformers, wherein the plurality of starting transformers or the plurality of lamps commonly connective transformers are disposed besides the plurality of lamps and the square wave switches are connected to the sides of the plurality of starting transformers or the plurality of lamps commonly connective transformers and to the DC power supply and can receive signals from the square wave controller.

Abstract: A power converter circuit includes an input switching circuit, an isolation circuit, a rectifier circuit that includes a least a pair of rectifiers, and an output circuit. The input switching circuit receives a first voltage and generates an AC voltage. The isolation circuit has a primary side configured to receive the AC voltage from the input switching circuit and a secondary side. The secondary side communicates with the rectifier circuit and the output circuit. The output circuit includes a secondary inductor and a diode. The secondary inductor communicates with a primary inductor and either the rectifier circuit or the secondary side. The diode communicates with the primary inductor, the secondary inductor, and the rectifier circuit. The secondary inductor inhibits current flow through the rectifier circuit and forces current flow through the diode when no voltage is applied to the primary side of the isolation circuit.

Abstract: An illuminator assembly is provided for supplying night vision illumination. The assembly includes a support housing and an infrared illumination source. An infrared reflector receives the radiation emitted from the infrared illumination source and reflects the infrared radiation in a first substantially collimated field of view and transmits visible light therethrough. A visible light reflector is located behind the infrared reflective mirror for receiving visible light transmitted through the infrared reflector and reflecting scattering the visible light in a second field of view.

Abstract: A method according to on embodiment may include generating AC voltage and current and a striking voltage. The method of this embodiment may also include generating striking voltage and steady-state voltage for at least two lamp loads. The method of this embodiment may also include coupling at least two lamp loads in parallel. The method of this embodiment may also include coupling current balancing circuitry to the at least two lamp loads and providing, by the current balancing circuitry simultaneous striking voltage to the at least two lamps loads. The method of this embodiment may also include balancing, by the current balancing circuitry, AC current through the at least two lamp loads. Of course, many alternatives, variations, and modifications are possible without departing from this embodiment.