Abstract: According to one embodiment, there is provided a white light source system. P(?), B(?) and V(?) satisfy an equation (1) below in a wavelength range of 380 nm to 780 nm. The white light source system satisfies an expression (2) below in a wavelength range of 400 nm to 495 nm: ?380780P(?)V(?)d?=?380780B(?)V(?)d???(1) where P(?) is a light emission spectrum of white light, B(?) is a light emission spectrum of blackbody radiation of a color temperature correspond to a color temperature of the white light, and V(?) is a spectrum of a spectral luminous efficiency.

Abstract: A frequency tunable antenna includes a first substrate and a second substrate that are disposed opposite to each other, a second electrode disposed on a side of the second substrate close to the first substrate, a first electrode disposed on a side of the first substrate close to the second substrate, and a liquid crystal layer disposed between the second electrode and the first electrode. The second electrode and the first electrode are configured to adjust transmitting and receiving frequencies of the frequency tunable antenna by controlling an alignment manner of liquid crystals of the liquid crystal layer.

Abstract: A lighting apparatus including a controller, an LED driver, and an LED luminaire, in which the LED luminaire implements a color temperature from a minimum color temperature of 3,000K or less to a maximum color temperature of 5,000K or more, and the controller controls the LED driver to change the color temperature of the LED luminaire corresponding to change in color temperature of sunlight.

Abstract: The present invention provides an LED lamp, a control method and a control apparatus thereof, and an LED lamp system, each of which may achieve the function of light dimming in a current LED lamp without having to modify its original structure(s) wherein the current LED lamp originally could not have the function, or may achieve better dimming control of parallel-connected LED lamps. A method of controlling an LED lamp includes combining or synthesizing a power signal and a dimming instruction to produce an output signal, wherein the power signal comprises a constant DC, and the dimming instruction includes a control code comprising a specific sequence of high/low voltage levels for providing a manner of controlling the LED lamp. The LED lamp receives the output signal and performs control of itself according to the manner of controlling provided by the control code.

Abstract: The present invention provides a self-adaptive dimming driving system, comprising: a lamp base, a driving circuit, a lamp identification circuit, and a controller. The lamp base, where an LED lamp is able to be mounted, comprises an LED power port electrically connected to a power input port of the LED lamp. The driving circuit is connected or coupled to the LED power port and configured to modulate power to be output to the LED lamp and output the modulated power to the LED lamp. The lamp identification circuit outputs a test current to the LED power port in order to turn on an identification resistor of the LED lamp, and receives a voltage parameter of the identification resistor as feedback in order to output a detection signal according to the voltage parameter.

Abstract: Resistively loaded dielectric biconical antenna apparatuses, including systems and devices, that may be used to transmit very short electrical pulses (e.g., nanosecond, sub-nanosecond, picosecond, etc.) into tissue non-invasively at energy levels sufficient to invoke biological changes in the tissue. These resistively loaded dielectric biconical antenna apparatuses may include a resistor ring reducing internal reflection and reducing energy loss, as well as delivering longer pulses (e.g. microsecond to millisecond) to tissue.

Abstract: A lighting circuit and methods of manufacturing and controlling a lighting circuit are described. The lighting circuit includes a first array of semiconductor light sources, a separate second array of semiconductor light sources, and a shared array of semiconductor light sources. A first driver is electrically coupled to provide a first drive current to the first array and the shared array. A second driver is electrically coupled to provide a second drive current to the shared array and the second array.

Abstract: A light dimming circuit has a continuous dimming function that includes a power supply and a light source module formed as a lamp. A power switch is connected to a power supply and receives a user input when the user turns on and turns off power. A light source drive circuit is connected to the power switch and the light source module. The light source drive circuit detects a switch on time and a switch off time, generates a light source drive signal according to the switch on time and the switch off time, and saves the light source drive signal and drives the light source module to illuminate. The light source drive signal controls a brightness of the light source module. The brightness of the light source module is adjusted to provide a continuous dimming function according to the switch on time and the switch off time.

Abstract: An integrated sensor assembly provides multiple sensing modalities to monitor an agricultural environment, and may be employed in or used with controlled environment agriculture (CEA) systems to control and maintain improved growth conditions for various plants. In one exemplary implementation, an integrated sensor assembly includes sensors to monitor parameters important to plant growth, such as a natural light sensor, an air temperature sensor, a relative humidity sensor, an air flow sensor, a carbon dioxide (CO2) sensor, and a remote infrared (IR) temperature sensor. The sensors are mounted onto a single circuit board, which is then placed inside a housing for protection from the ambient environment. The housing can include one or more openings and apertures to facilitate sensing with protective covers where appropriate. A USB port can be included to supply electrical power and transfer of data to and from the integrated sensor assembly (e.g., to provide plug-and-play functionality).

Abstract: A controller for controlling a battery-powered luminaire in a lighting network comprises: a network interface for communicating with the lighting network; and control logic for controlling at least one illumination source of the battery-powered luminaire; wherein the control logic is configured to: detect a failure of at least one mains-powered luminaire in the lighting network, determine that the mains-powered luminaire was emitting or had been instructed to emit a visual alert when the failure occurred, and control the at least one illumination source of the battery-powered luminaire to emit a version of that visual alert in response, the failure being detected based on a loss of communication, within the lighting network, with the mains-powered luminaire.

Abstract: An array antenna device, including: a waveguide (1) having a plurality of radiation units (2) arranged on one tube wall thereof, in which the waveguide (1) has a plurality of grooves (3) arranged on an inner side of a tube wall facing the tube wall, movable short-circuit surfaces (4) each electrically short-circuited to an inner wall of one of the grooves (3), and movable short-circuit surface controlling mechanisms (5) for changing positions of the movable short-circuit surfaces (4).

Abstract: Techniques are disclosed for systems and methods to provide lighted vehicle beaconing, particularly for micro-mobility fleet vehicles. A lighted vehicle beaconing system includes a vehicle light assembly configured to be coupled to and/or integrated with a micro-mobility fleet vehicle and a logic device configured to communicate with the vehicle light assembly. The vehicle light assembly includes a programmable light element configured to receive a lighting control sequence and generate a multicolored and/or animated lighting sequence corresponding to the received lighting control sequence. The logic device is configured to determine the lighting control sequence and to generate the multicolored and/or animated lighting sequence by providing the lighting control sequence to the programmable light element of the vehicle light assembly.

Abstract: AN LED driving apparatus includes a power stage circuit and a dimming control circuit. The power stage circuit drives an LED circuit. The dimming control circuit includes a duty ratio conversion circuit, a digital-to analog conversion (DAC) circuit, an error amplifier (EA) circuit and a modulation control circuit. The duty ratio conversion circuit converts a PWM dimming signal to a digital duty ratio signal. The DAC circuit converts the digital duty ratio signal to an analog reference signal. The EA circuit generates an error amplified signal according to a difference between the analog reference signal and an output current related signal. The modulation control circuit generates a PWM control signal according to the error amplified signal, to control the power switch, such that the output current relates to a dimming duty ratio, whereby the dimming control circuit dims the LED circuit according to the PWM dimming signal.

Abstract: A device for clustering light spots, the device is configured to receive an image captured by a camera, detect light spots in the image, calculate a distance measure for each of a plurality of pairs of light spots detected in the image, and group the detected light spots to clusters based on the calculated distance measures.

Abstract: The present invention relates to a plasma diagnosing system and method, and more particularly, to a system and a method for diagnosing plasma in real time using a change in a capacitance sensed by an electrode using a reference waveform having a frequency different from a plasma discharging frequency band region. The sensed capacitance varies before and after discharging plasma and the plasma is diagnosed using the change in capacitance in real time.

Abstract: A data generation method is for generating video data that covers a second luminance dynamic range wider than a first luminance dynamic range and has reproduction compatibility with a first device that does not support reproduction of video having the second luminance dynamic range and supports reproduction of video having the first luminance dynamic range, and includes: generating a video signal to be included in the video data using a second OETF; storing, into VUI in the video data, first transfer function information for identifying a first OETF to be referred to by the first device when the first device decodes the video data; and storing, into SEI in the video data, second transfer function information for identifying a second OETF to be referred to by a second device supporting reproduction of video having the second luminance dynamic range when the second device decodes the video data.

Abstract: An indirectly heated cathode ion source having an electrically isolated extraction plate is disclosed. By isolating the extraction plate, a different voltage can be applied to the extraction plate than to the body of the arc chamber. By applying a more positive voltage to the extraction plate, more efficient ion source operation with higher plasma density can be achieved. In this mode the plasma potential is increased, and the electrostatic sheath reduces losses of electrons to the chamber walls. By applying a more negative voltage, an ion rich sheath adjacent to the extraction aperture can be created. In this mode, conditioning and cleaning of the extraction plate is achieved via ion bombardment. Further, in certain embodiments, the voltage applied to the extraction plate can be pulsed to allow ion extraction and cleaning to occur simultaneously.

Abstract: A circuit interface includes a plurality of inputs, an internal controller, and a communication module. Each of the inputs may be configured to connect to a respective high voltage relay output of a pool and/or spa control (“PSC”) panel. The internal controller may be connected to the plurality of inputs, and together, the internal controller and the plurality of inputs can be configured to convert relay output signals into formatted data that includes an implementation protocol. The communication module can be configured to transmit the formatted data from the circuit interface. Conversions from the relay output signals to the formatted data can include specifying or configuring the formatted data to cause a device controller to operate devices corresponding to respective PSC panel relay outputs by directing individual low voltage supplies from a common low voltage source to the respective devices.

Abstract: An open-loop resonate converter includes: a transformer having a first winding on a primary side of the open-loop resonate converter and a second winding on a secondary side of the open-loop resonate converter; a resonant tank coupled to the first winding of the transformer and configured, at a first fixed frequency, to provide a constant LED current over a voltage range at the secondary side without feedback from the secondary side; and a circuit configured to modulate switching of the resonant tank between the first fixed frequency and a second fixed frequency higher than the first fixed frequency based on a dimming control signal input to the circuit, such that the resonant tank is switched at the first fixed frequency for longer durations when the dimming control signal indicates less dimming and for shorter durations when the dimming control signal indicates more dimming.

Abstract: A method of operating a lighting device with a light-emitting component, in which the light-emitting component includes a plurality of pixels configured to illuminate a plurality of zones in a field of view, the light-emitting component includes a processing device including characterization data of the light-emitting component, and the pixels of the light-emitting component are operated as a function of the characterization data, wherein to determine characterization data prior to intended operation of the lighting device an intensity and/or a color location of the emitted light of a pixel or of each pixel is measured as a function of an operating current.