Abstract: Multiphase lighting fixtures having one or more light emitting diode (LED) light sources are provided. In one example implementation, a light fixture includes one or more light sources, such as LED light sources and a power conversion circuit. The power conversion circuit includes a phase shifting transformer for implementing a phase shift between output phases of secondary windings thereof, a multi-phase rectifier having a first rectifier and a second rectifier connected in parallel for converting a multiphase input power to a rectified output or a six-pulse configuration, a zero sequence blocking transformer for reducing harmonic distortion, an interphase transformer for further reducing harmonic distortion, and a current regulator for providing a constant DC current output to the one or more light sources. In some example implementations, the DC rectified output has a voltage ripple of less than about 7%, or less than about 3%.

Abstract: A method and system to extend the coverage of Outdoor Lighting Networks (OLNs) through the use of authorized mobile devices travelling around to establish a virtual connectivity link (i. e., storing data and, when in reach, using short-range wireless communication protocols) between isolated light points (or groups of light points) and connected light points so that lighting commands and data can be exchanged between the two sets of lighting points is disclosed.

Abstract: An apparatus and a method monitor the status of a thermal protection device within a surge protection device (SPD). A monitoring circuit connected to a monitor output signal of the SPD is responsive to the presence of a time-varying voltage on the monitor output signal. The time-varying voltage is present during a selected half of each AC cycle when the thermal protection device is intact such that the SPD is no longer providing surge protection. The time-varying voltage is not present when the thermal protection device is no longer intact. When the time-varying voltage is not present for a selected duration, the monitoring circuit illuminates a light-emitting diode (LED) to indicate that the thermal protection device has failed.

Abstract: The plasma is formed between electrodes to be energized from an electric power source, containing a partially ionized mass having a luminescence region including neutral atoms (NA), primary electrons (PE), secondary electrons (SE), and ions. The method comprises the steps of: accelerating the primary electrons (PE) toward one of said electrodes polarized by a positive high voltage pulse impacting primary electrons (PE) against said electrode and ejecting secondary electrons (SE) from it; subsequently, accelerating the secondary electrons (SE) toward the luminescence region by polarization of said electrode by a negative voltage to collide the secondary electrons with neutral atoms (NA) and producing positive ions (PI) and derived electrons (DE); repeating the previous steps in order to obtain a steady state plasma with a desired degree of ionization.

Abstract: An electrical wiring device having a plurality of line and load terminals configured to be coupled to an AC electrical distribution system; an electro-optical assembly coupled to the line or load terminals, including at least one circuit coupled to an ambient light sensor, a light emitting assembly and a visual indicator element, the visual indicator element being configured to provide a visual indicator signal, the ambient light sensor being configured to provide a sensor signal corresponding to ambient light in the ambient environment, the at least one circuit being configured to read the sensor signal during a time period when the visual indicator signal are not being emitted, wherein at least one of the visual indicator element and the light emitting assembly is configured to provide a selectable color temperature signal based on user input; and a bidirectional light pipe including a first light pipe branch coupled to the visual indicator element, a second light pipe branch coupled to the ambient light se

Abstract: A lighting device includes a housing; a plurality of light emitting diodes (LEDs) located on a first side of the housing; a plurality of switches for controlling the plurality of LEDs; and a controller operably coupled with the plurality of switches and configured to control operations of the plurality of LEDs in response to inputs received via the plurality of switches. Each of the plurality of switches is exposed through a corresponding hole formed at the housing, and a top surface of each of the plurality of switches is lower than a surface of the housing through which the plurality switches are exposed.

Abstract: A light emitting device which can adjust color temperature as power is supplied from a single power source comprises an anode electrode land; a cathode electrode land; a first light emitting unit and a second light emitting unit; a low pass filter including a capacitance member which is provided in parallel with the first light emitting unit and the second light emitting unit; and a resistance member which is provided in series with the first light emitting unit and the second light emitting unit. A phosphor which is included in the first light emitting unit and the second light emitting unit includes a red phosphor which is excited by the primary light that is emitted from the LED element and emits light with a peak light emission wavelength into a red region, and a green phosphor which is excited by the primary light that is emitted from the LED element and emits light with a peak light emission wavelength into a green region.

Abstract: An apparatus and method allow end users to interactively create complex lighting patterns by remote control. Applications include decorative lighting, landscape lighting, signage, or advertising platforms. A lighting control system is equipped with sensors that receive remote control signals from a variety of different sources, and route the control signals to modulate receptacles coupled to different lighting circuits, thereby independently controlling multiple light arrays to achieve separate light patterns, or to coordinate different lighting effects. The control signals independently energize localized groups of lamps to provide enhanced lighting effects, while using significantly less wire material. Interactive remote control is provided via a mobile computing device such as a smart phone running a customized program. In one embodiment, the remote control device communicates selections to a Bluetooth®-equipped speaker to produce sound-controlled lighting effects.

Abstract: A plasma processing system is provided that includes a chamber having a lower electrode coupled to a substrate support and an upper electrode coupled to ground. The plasma processing system having a plasma processing volume that is defined between the upper electrode and the lower electrode. A direct current (DC) to direct current (DC) converter is provided to receive at an input a DC voltage input and supply at an output an amplified DC voltage signal that includes a radio frequency (RF) component. The DC voltage input follows a pulsing pattern that is digitally programmable. The output of the DC to DC convertor is connected to the lower electrode of the chamber. A controller is interfaced with the DC to DC converter to set the pulsing pattern. In one example, the DC to DC converter uses one of a bipolar or non-bipolar DC voltage supply and a RF generator is driven by a DC voltage supply. The RF generator is configured to produce a frequency ripple that defines the RF component.

Abstract: A lighting system, an identification system and an identification device for a lighting system, wherein the lighting system comprises a plurality of components. The identification device comprises a transmitter adapted to receive an identification request, and a signaling apparatus comprising a control unit and one or more signaling devices, wherein the control unit is adapted to control the one or more signaling devices so that, in response to receipt of the identification request, an identification signal is produced that alerts a human to a location or direction of one or more of the components.

Abstract: The present disclosure provides an intelligent lighting control system. The lighting control system includes a module housing, a graphical user interface coupled to the module housing and a switch control circuit positioned in the housing and including a processor. The processor is configured to modulate the flow of electrical energy to a lighting circuit via a dimmer circuit. The switch control circuit is electrically connected to the graphical user interface. The processor is also configured to identify a device identification address compare the identified device address with one or more registered identification addresses saved in a dataset. The processor is configured to catalogue a command received at the processor and at least one event parameter detected contemporaneously with receipt of the command, if the identified proximate device identification address corresponds to one of the one or more registered device identification addresses saved in the dataset.

Abstract: A method and apparatus for a horticultural light for use in an indoor horticultural facility that produces broad spectrum white light with variable correlated color temperature (CCT) so as to better simulate various aspects of the sun, such as the multiple phases of the sun, aspects of the sun in all four seasons and latitude of the sun. One or more rows of fixed-color LEDs is used to obtain even wider ranges of CCT values, such as the use of red and/or blue LEDs. Even broader spectrums are achieved by utilizing LEDs that emit differing wavelengths within a particular color spectrum, such as a channel of red LEDs that emit two different wavelengths within the red spectrum and/or a channel of blue LEDs that emit two different wavelengths within the blue spectrum. Sensors with feedback control maintains the light within constraints defined by a light prescription database.

Abstract: A lamp control device may include: a lamp including an LED module having a plurality of LED channels; a converter configured to receive a voltage corresponding to a turn signal, convert the voltage into an output voltage and internal voltage, and supply the output voltage to the LED module; and a controller configured to start counting a preset delay time when the internal voltage is supplied from the converter, and control the plurality of LED channels to sequentially light up at intervals of the delay time.

Abstract: A method for controlling light presentation of a light system is proposed to include steps of: (a) performing, by a media renderer, playback of a multimedia program; and (b) controlling, by the media renderer during the playback of the multimedia program in step (a), the light system to change light presentation thereof according to a light-timing file set that is prepared prior to step (a), and that indicates time points at which the light system is to change light presentation thereof during playback of the multimedia program.

Abstract: A method for controlling a mobile terminal that controls lighting devices that illuminate spaces, the terminal including a display and a memory. The method causes a computer of the terminal to obtain current time information, rearrange scene icons, using the memory that stores scenes indicating illumination states established by the lighting devices and scene time information indicating times of the scenes, while associating the scenes and the scene time information with each other. The scene icons correspond to the scenes based on the current time information and the scene time information. The rearranged scene icons are displayed on the display, and, when a scene icon is selected, a control signal for controlling the lighting devices is transmitted to the lighting devices, so that the spaces are illuminated in an illumination state indicated by a scene corresponding to the selected scene icon.

Abstract: In a lighting device, a voltage detector outputs a detection voltage with a magnitude corresponding to a magnitude of a DC voltage outputted from a power supply circuit, a state determiner makes determination of whether a light source is in a turned-on state or in a turned-off state, a power controller is configured to control a DC power supplied from the power supply circuit based on a result of the determination by the state determiner, and the state determiner determines, when a value obtained by subtracting the detection voltage from a first reference voltage is equal to or larger than a first threshold value, that the light source is in the turned-off state.

Abstract: A system for providing power over Ethernet emergency lighting is disclosed. The system includes a rechargeable battery pack that is charged without interfering with data signals present on a power over Ethernet link that provides normal lighting. The system includes a power loss monitor for monitoring the presence of normal lighting power present on a power over Ethernet link without interference.

Abstract: A method of driving a number of high-power light-emitting diodes (LEDs) which are divided into two or more groups, each group being separately energizable by a corresponding one of the power supplies, includes: a) energizing or deenergizing a supply current from the corresponding one of the power supplies into a first one of the groups; b) waiting for a predetermined wait time period; and c) repeating step a) and b) for a second one of the groups. Besides, a supply unit for performing the method comprises a control input, a control unit, and at least two power supplies for correspondingly feeding the two or more LEDs groups.

Abstract: A controller for controlling a generator arranged to the generate a frequency signal for controlling a converter in a driver for driving a light circuit, the controller receiving feed-back information from the light circuit, and a processor; the processor configured to produce, in response to the feed-back information from the light circuit, a control signal arranged to control the generator, the feed-back information comprising a value of a feed-back signal that flows through at least a part of the light circuit or that defines a light intensity of at least a part of the light circuit, and the control signal defining a frequency of the frequency signal, adapt, in response to data information, the control signal, wherein the data information comprises a code for coding light produced by the light circuit; determine a static transfer of a combination of the converter and the light circuit defined by values of the feed-back signal and corresponding values of the frequency of the frequency signal; divide the val

Abstract: In a motor vehicle having motor vehicle exterior lighting devices and an operator control device, the following lighting modes of the motor vehicle exterior lighting devices can be set: deactivated, parking light, daytime running light, forwarding lighting, and automatic mode in which the motor vehicle exterior lighting devices are operated by an automatic forward light controller. The operator control device further has a single monostable operator control element by which the lighting modes can be set; or the operator control device has a monostable operator control element by which the deactivated, parking light, daytime running light and forward lighting lighting modes can be set. The operator control device has a pushbutton key or a toggle lever by which the automatic mode can be set.