Abstract: A power supply system for a lighting unit, comprises a driver, a local energy storage device and a converter. The converter implements a first, charging mode, mode by connecting to the output of said driver for diverting at least a part of the driving current from the lighting unit to charge the energy storage device, a second, battery driving, mode by connecting to the lighting unit for converting the local energy storage device power supply to drive the lighting unit, and a third, grid driving, mode to neither charge the energy storage device nor convert the secondary power supply. The converter and the driver are controlled actively and synchronously to maintain the current through the lighting unit when switching the converter between modes.

Abstract: A configurable controllable under cabinet lighting fixture and system for controlling the same are provided. An example configurable controllable under cabinet lighting fixture includes one or more lighting elements positioned from a proximal end of a lighting fixture housing to a distal end of a lighting fixture housing. The example configurable controllable under cabinet lighting fixture further includes circuitry configured to control one or more first parameters associated with the one or more lighting elements. The circuitry is further configured to control one or more second parameters associated with one or more nearby configurable controllable under cabinet lighting fixtures located within a proximity threshold of the configurable controllable under cabinet lighting fixture. The lighting fixture housing is configured for affixing to a downward facing surface of a mounting surface.

Abstract: A power cable for a light string includes two wires, a body and a switching circuit. The two wires extend from a first end to a second end. The body is disposed on the two wires. The switching circuit includes a normally open contact switch and a voltage dividing resistor. The normally open contact switch is connected in series with the voltage dividing resistor and is electrically connected to two wires. The normally open contact switch and the voltage dividing resistor are disposed in the body, and the normally open contact switch is at least partially exposed on the surface of the body. The normally open contact switch is configured to be repeatedly pressed, so that the voltage division state between the two wires changes to form a trigger signal combination.

Abstract: A nanosecond pulser system is disclosed. In some embodiments, the nanosecond pulser system may include a nanosecond pulser having a nanosecond pulser input; a plurality of switches coupled with the nanosecond pulser input; one or more transformers coupled with the plurality of switches; and an output coupled with the one or more transformers and providing a high voltage waveform with a amplitude greater than 2 kV and a frequency greater than 1 kHz based on the nanosecond pulser input. The nanosecond pulser system may also include a control module coupled with the nanosecond pulser input; and an control system coupled with the nanosecond pulser at a point between the transformer and the output, the control system providing waveform data regarding an high voltage waveform produced at the point between the transformer and the output.

Abstract: A biological lighting system to provide temporally- and spatially-modulated photon flux output and spectral power distributions to plants on a circadian and circannual basis, or circadian and life cycle basis, to maximize effective and efficient growth in a horticultural setting. The photon flux or irradiance output and the spectral power distribution are modulated to match circadian and circannual rhythms, with individual or multiple luminaires controlled through one or more controllers. Different lighting spectra can be employed depending on the direction of illumination. The photon flux or irradiance output and the spectral power distribution may be set as best suited for any particular plant species, and the system is also useful for raising animals.

Abstract: The disclosed technology relates to a lighting system that utilizes an ambient light sensor to detect at least one of a color temperature and intensity of ambient light to set or adjust at least one of an intensity and color temperature of light to be emitted by a plurality of LEDs. The plurality of LEDs include RGB+WW LEDs.

Abstract: The disclosed technology relates to a lighting system that utilizes an ambient light sensor to detect at least one of a color temperature and intensity of ambient light to set or adjust at least one of an intensity and color temperature of light to be emitted by an array of LEDs. The array of LEDs include at least one warm color temperature LED and at least one cool color temperature LED.

Abstract: The present disclosure provides an intelligent lighting control apparatus for automated lighting adjustments based on sensor and alarm signals. A light control apparatus detects a signal, such as an alarm signal and a sensor signal, from an electronic device, such as a mobile electronic device and a security system, or a sensor device, such as a motion detector. The light control apparatus is configured to select a scene based on the detected signal and modulate a flow of electrical current to a lighting circuit controlled by the light control apparatus according to one or more parameters of the selected scene.

Abstract: An LED driver includes a temperature sensing circuit integrated within its housing. The sensing circuit generates signals corresponding to actual temperature values within the driver housing to a controller. The controller receives programmable temperature derating parameters at least partially related to a light fixture receiving the driver housing, converts the temperature sensor signal into the actual temperature value, and derates the output current in linear fashion according to a transfer function when the actual temperature value falls within the temperature derating parameters. The parameters may include starting and ending temperatures, and an ending current parameter. The temperature sensing circuit may include a voltage divider with a negative thermal coefficient (NTC) device, preferably as the high side resistor.

Abstract: A lighting device includes an optical assembly and an obstruction sensor configured to receive radiation reflected by the optical assembly. The lighting device also includes a processor that is configured to receive information corresponding to the radiation reflected by the optical assembly from the obstruction sensor, and compare the received information to a plurality of known reflection patterns associated with one or more properties of the optical assembly to determine a property of the optical assembly.

Abstract: A power switch configured to control power delivery to a load is provided. The power switch can include a switching element configured to selectively couple the load to a power source. The power switch can include a power metering circuit. The power switch can include a communication circuit configured to provide communication between the power switch and at least one other device. The power switch can include a control device. The control device can obtain data from the power metering circuit. The data can be indicative of power consumption by the load. The control device can determine whether the power consumption exceeds a threshold associated with a power rating for the power switch for a time greater than a threshold period. The control device can perform one or more control actions when the power consumption exceeds the threshold for greater than the threshold period.

Abstract: The present inventions presents an LED lighting device for preventing flickering. The device comprises: a rectification unit receiving an alternating current voltage applied from an alternating current power source and rectifying the same so as to output a direct current; a first light-emitting unit receiving the direct current applied thereto and adjusting a first constant current so as to make a first LED array emit light; a second light-emitting unit receiving the adjusted first constant current applied thereto and adjusting a second constant current so as to make a second LED array emit light; and a serial switching unit receiving the direct current and the adjusted first and second constant currents applied thereto so as to control current transmission according to the opening/closing of a plurality of embedded transistors, wherein the direct current and the first constant current, which are to be applied, are applied by passing through first and second diodes, respectively.

Abstract: A circadian entrainment enhancement device includes a housing, a first directional light source, a second directional light source, and a driver. During daytime, the driver turns on the first directional light source with a high melanopic ratio to enhance the daytime circadian entrainment of a user. During nighttime, the driver turns on the second directional light source with a low melanopic ratio to enhance the nighttime circadian entrainment of a user. A more advanced version of the present disclosure uses a light sensor, a memory module, and a computation module to calculate the necessary light output of the device by factoring the ambient light level into consideration. An even more advanced version of the present disclosure uses a distance sensor to adjust the light level of the light sources according to the distance between the device and the user.

Abstract: A vehicle lamp includes: a variable light distribution lamp capable of generating a beam having a variable intensity distribution; an infrared illumination device configured to irradiate a front; an infrared camera configured to image the front; and a light distribution controller configured to detect a snow particle based on an output of the infrared camera, generate a light distribution pattern in which a portion corresponding to the snow particle is shaded, and control the variable light distribution lamp.

Abstract: Omni-directional orthogonally-polarized antenna system for MIMO applications are disclosed herein. An example antenna system can have two arrays of horizontally polarized radiating elements, and two arrays of vertically polarized radiating elements, each array having roughly 180-degree radiation pattern, disposed about a central axis in a common horizontal plane, arrays of common polarization separated by 180-degrees, such that MIMO processing of signals to the arrays of common polarization results in a radiation pattern that is substantially constant over 360-degrees in azimuth.

Abstract: The disclosure relates to a waveguide system comprising a plurality of stacked layers. The system further comprises a waveguide in a direction across the layers by providing each layer with a predetermined metal pattern. The disclosure further relates to a method for forming a waveguide.

Abstract: The present disclosure includes an antenna and a base station including an antenna. The antenna includes at least one unit cell that includes a flap layer, a feed network, and a patch. The flap layer includes a plurality of flaps. The feed network is positioned below the flap layer and includes a plurality of feed lines. Each of the plurality of feed lines includes an excitation port and a transmission line. The patch has a quadrilateral shape and is positioned above the flap layer such that an air gap is present between the patch and the flap layer.

Abstract: A modular dimmer assembly, including a communications circuit configured to send and receive wireless communication, a control circuit configured to receive an AC input at a first pulse width and adjust the brightness of at least one lighting device, in response to the communications circuit receiving a signal, by producing an AC output at a second pulse width, a regulation circuit, controlled by the AC output, including a flyback switch mode power supply (SMPS) and a capacitor, wherein the flyback SMPS charges the capacitor and the control circuit monitors a voltage of the capacitor to determine the second pulse width, and wherein the modular dimmer assembly is a two-wire device.

Abstract: A helipad includes an LED matrix built directly into the landing surface. LEDs within the matrix can be illuminated in controlled patterns to create visible objects to convey information to the pilot of an aircraft landing at the helipad and other personnel. The LEDs can be RGB color-change LEDs that are controlled to output selected colors, and can be activated with variable intensity. One of the patterns can be an arrow aligned with the wind direction as determined by an adjacent windsock, and another pattern can be determined by wind velocity as determined by an adjacent anemometer.

Abstract: A phased array antenna is provided. The phased array antenna includes a dome shaped substrate. The phased array antenna further includes a plurality of antenna elements disposed on the substrate.