Abstract: A light emission arrangement includes a driver arrangement having a first, a second, and a third driver. The light emission arrangement also includes a number N of assemblies. Each assembly includes a first, a second, and a third light-emitting semiconductor body. The number N is greater than 1. The first driver is coupled to a first series connection including the first light-emitting semiconductor bodies of the number N of assemblies. The second driver is coupled to a second series connection including the second light emitting-semiconductor bodies of the number N of assemblies. The third driver is coupled to a third series connection including the third light-emitting semiconductor bodies of the number N of assemblies. The first, second, and third driver are each configured to output a driver signal dependent on photometric quantities of the first, the second, and the third light-emitting semiconductor bodies of the number N of assemblies.

Abstract: A control circuit for a light emitting element driver with a power converter and a shunt switch is provided. The control circuit includes a delay terminal, a dimming terminal, a control terminal and a driving terminal. The delay terminal receives a reference signal. The dimming terminal receives a dimming signal. The dimming signal has a first state and a second state. The control terminal provides a control signal to control the power converter. The driving terminal provides a shunt switch control signal to the shunt switch, to turn off the shunt switch after a first delay time from a time when the dimming signal is switched from the first state to the second state, and to turn on the shunt switch after a second delay time from a time when the dimming signal is switched from the second state to the first state.

Abstract: A capacitively or inductively driven spiral antenna creates an electric current distribution of a dipole, which generates a sensible magnetic field for various military applications including detecting and pre-detonating improvised explosive devices (IEDs). The antenna includes a dielectric substrate, a spiral antenna, driving elements such as tuning forks or loop, and a coaxial cable that connects to a source terminal. The substrate is a low dielectric loss insulating material to provide support for the antenna. The spiral antenna is tuned to a natural frequency is disposed on the substrate. The coaxial cable extends from the substrate to the source terminal.

Abstract: An electronic device, including a circuit board, a back cover, and a millimeter wave antenna module. The millimeter wave antenna module is disposed on a surface of the circuit board facing the back cover and is configured to send a millimeter wave signal. At least one of the back cover and the circuit board is disposed with an in-phase reflection structure. According to this application, the phases of the millimeter wave signal reaching the back cover each time are the same when the millimeter wave signal is reflected the plurality of times between the circuit board and the back cover in a shorter distance. This reduces a thickness of the whole electronic device and improves radiation performance of an antenna.

Abstract: The invention provides an electronic assembly for an automotive luminous device. The electronic assembly includes a first group of light sources, a second group of light sources, a driver element to control the operation of the light sources and a mode selection circuit. The mode selection circuit is configured to receive a mode selection control signal and to provide an output signal with a control value which depends on the mode selection control signal. The driver element includes a first input configured to receive power supply, a second input configured to receive the output signal of the mode selection circuit and an output received by the first group of light sources and by the second group of light sources, so that the operation of the first group of light sources and of the second group of light sources is controlled by the output of the driver element.

Abstract: Corrective meta surface lens is used to reduce the illumination and spill-over losses and improve the overall efficiency of a parabolic antenna when is horn-mounted, and/or top-mounted, and/or deposited directly on the frontal reflector surface of the parabolic antenna. For the horn-mounted model, a meta surface lens is placed in front of or in the aperture of the feed horn to reduce side lobe level, which results in lower parabolic antenna spill-over losses and overall efficiency improvement by more than 40% (1.5 dB). For the top-mounted model, the meta surface lens is mounted on top of (or above) the parabolic reflector, which results in reduction in illumination losses, and greater than 70% (2.5 dB) efficiency. The meta surface lens has a wideband response, is lightweight and has a lattice structure which makes it a great candidate for withstanding wind forces.

Abstract: An electronic device, and the electronic device includes: a frame body, a display, and an antenna coupling structure. The display is disposed on the frame body, and a display control line is disposed on a side, close to the frame body, of the display. An antenna resonant arm is disposed on the frame body, and the antenna resonant arm includes a first antenna and a second antenna. Operating frequency bands of the first antenna and the second antenna are different, and a gap is formed between the antenna resonant arm and the display control line. A clearance area is provided at a position, close to the gap, on the frame body, the antenna coupling structure is disposed in the clearance area, and the antenna coupling structure is coupled to an antenna reference ground on the frame body.

Abstract: The invention describes a replaceable LED circuit for coupling to an LED driver. The replaceable LED circuit comprises a pair of input pins for receiving a power supplied by LED driver, an LED string coupled between the pair of input pins for receiving the power, and a surge protection circuit coupled in parallel to the LED string. The surge protection circuit comprises a capacitor arranged to charge when the power is supplied to the LED string, and a current regulator coupled in series with the capacitor and arranged such that it allows the capacitor to charge and prevents the capacitor to discharge into the LED string.

Abstract: An antenna installed in a heat dissipation vent includes a heat dissipation frame, a main antenna body, and an auxiliary antenna body. The heat dissipation frame has a plurality of first openings and a plurality of second openings. The main antenna body has a main antenna pattern and a plurality of first alignment openings. The first alignment openings are aligned with the first openings, and are bonded to the heat dissipation frame. The auxiliary antenna body has an auxiliary antenna pattern and a plurality of second alignment openings. The second alignment openings are aligned with the second openings, and are bonded to the heat dissipation frame. Accordingly, an integration degree of a heat sink and an antenna component can be improved.

Abstract: The present disclosure provides a RF power delivery method for delivering the RF power to a plasma load in a microelectronic manufacturing environment. The RF power delivery method includes generating a harmonically distorted sinusoidal waveform. Such harmonically distorted sinusoidal waveform being derived from a predetermined harmonic signature corresponding to a desired plasma state. Next, the method includes amplifying the harmonically distorted sinusoidal waveform and capable of operating under conditions of high reflected power. Next, the method includes interfacing with a non-linear plasma load impedance. Thereafter, the method includes measuring the RF power spectrum at an output of the fixed impedance matching network, the measured spectrum being used to adjust the amplified harmonically distorted sinusoidal waveform to recreate a desired plasma state.

Abstract: The disclosure relates to antennas for use in satellite positioning systems and other wireless bands. An antenna may include a UV resistance treated Polymethylpentene housing having enhanced dielectric properties.

Abstract: The invention provides a light generating system (1000) comprising (i) a light generating device (100) configured to generate device light (101) having a controllable radiant flux and a controllable spectral power distribution, and (ii) a control system (300) configured to control the radiant flux and the spectral power distribution of the device light (101); wherein: (A) a ratio B/Y of the device light (101) is defined as a ratio of a radiant flux of the device light (101) in the 450-500 nm wavelength range and of a radiant flux of the device light (101) in the 550-600 nm wavelength range; (B) in a first operational mode of the light generating system (1000) the control system (300) is configured to change from a first device light setting to a second device light setting, different from the first device light setting; (C) the first device light setting and the second device light setting are selected from: (a) a high radiant flux first setting (S1) wherein the device light (101) is first light with a first

Abstract: The application provides a lighting control method and apparatus for color picking based on an environment, a device, and a storage medium. The method comprises: obtaining an environment image in a current environment in real time; determining an effective color picking range in response to a user operation, and obtaining coordinate point data of the effective color picking range; and obtaining red, green and blue (RGB) data within the effective color picking range, and controlling a color of a corresponding lighting device in the environment based on the RGB data. Through the present application, the effective color picking range can be determined by a user through manual painting, thereby eliminating interference factors in a screen image, and solving the problem of a poor lighting control effect caused by the interference factors in the screen image.

Abstract: A system and method monitors a lamp assembly. Image data related to an object of interest is captured with an optical sensor disposed near the object of interest related to the lamp assembly. The image data from the optical sensor is provided to a processing circuit of a lamp monitoring and control device. The image data from the processing circuit can be transmitted to a base station using a transmit unit.

Abstract: The present disclosure generally relates to machine vision systems, illumination sources for use in machine vision systems, and components for use in the illumination sources. More specifically, the present disclosure relates to machine vision systems incorporating multi-function illumination sources, multi-function illumination sources, components for use in multi-function illumination sources, machine vision systems incorporating hidden strobe technology, and light emitting diode strobe power management.

Abstract: Disclosed herein is a method of controlling operation of at least one light-emitting system including at least one light-emitting element. The method includes: a) monitoring at least temporarily, at least one electrical parameter of the light-emitting element; b) evaluating the electrical parameter and verifying if the electrical parameter meets at least one predetermined criterion; and c) taking at least one safeguard action depending on the outcome of step b).

Abstract: A LED strip comprises at least three colors of LEDs and at least three signal lines, and an LED with one color is connected between every two signal lines; it further includes control components with the same number as the signal lines, and the control components are connected to one end of the signal lines; tit further includes a control system coupled with the control components and used for sequentially and circularly outputting two groups of control signals, thereby sequentially and circularly driving the two control components, and the total number of control signals output by the control system is not less than the number of LED colors.

Abstract: A lighting system including one or more loads and one or more load managers electrically coupled to or embedded in the one or more loads. The one or more load managers are configured to measure an input voltage from the one or more loads, determine if the input voltage is below a minimum voltage for the lighting system, when the input voltage is below the minimum voltage threshold, adjust a power level of the lighting system, and when the input voltage is above a minimum voltage, store the power level as an operational power for the lighting system.

Abstract: An LED driver includes a main power source, a transistor connected to a controller, an inductor, a diode, and a capacitor. The inductor is connected to a diode at a first end and connected to a main power source and the capacitor at a second end. The diode is also connected to the capacitor. The controller is configured to switch the transistor between an active state and an inactive state. When the transistor is in the active state, the inductor is charged by the main power source. When the transistor is in the inactive state, the inductor charges the capacitor through the diode until a capacitor current is greater than a diode current. At which point, the capacitor's voltage is in series with the main power source's voltage, and the sum of their voltages supply power to LED(s) connected to the capacitor.

Abstract: A waveguide slot antenna includes a waveguide having a plurality of slots spaced apart by a predefined distance in a central-axis direction of the waveguide, as a radiating section. An uneven section provided on an outer wall surface around the radiating section has a periodic concave-convex pattern extending from the radiating section. The uneven section includes a plurality of protrusions spaced apart by a predefined distance in a dispersed manner in each of an axis direction parallel to the central-axis of the waveguide in which the plurality of slots are arranged and an axis direction orthogonal to the central-axis of the waveguide, and grooves between the protrusions. The plurality of protrusions and the grooves causes incident waves incident from forward in a direction of radiation of radio waves emitted from the radiating section to be reflected in a direction different from an incident direction of the incident waves.