Abstract: An electric light and external light control system for a space with a dual-mode light sensor is proposed. The dual-mode light sensor (106) measures and computes the amount of external light and electrical light incident on its sensing surface. The individual measured light components (total light, electric light and external light) are transmitted to the window treatment controller (103) and the electric light controller (102). The controllers (102, 103) use this information to optimally control the lighting condition to meet user requirements and reduce energy consumption. Both controllers (102, 103) operate concurrently and independently, but are linked via the dual-mode sensor (106).

Abstract: A system mounted in a vehicle to recognize load capacity change is disclosed. The system includes a lamp, a micro controller unit (MCU) configured to adaptively control the system based on load capacity of the lamp, an intelligent power switch (IPS) having a front end connected to the MCU and a rear end connected to the lamp, and a sensing resistor connected between the MCU and the IPS.

Abstract: Embodiments are provided for a lighting system and a method of installing a lighting system. According to certain aspects, a driver box is configured with a plurality of drivers secured therein. A series of wired connections can couple the plurality of drivers to a plurality of luminaires and can conduct electric power from the plurality of drivers to power the plurality of luminaires. According to aspects, the driver box and its plurality of drivers are located remote from the plurality of luminaires to enable efficient maintenance of the lighting system.

Abstract: A commissioning system (3) for a lighting system, the lighting system comprising a plurality of controllers (5), each controller (5) adapted to control a set of lighting units (7) spatially clustered as a group and controlled using a set of control outputs, wherein each control output is for controlling one or more lighting units of the set, the commissioning system comprising: an identification unit (31) for identifying the set of lighting units connected to a controller (5) from the plurality of controllers; a commissioning controller (33) for controlling the identified set of lighting units via the controller (5), wherein the commissioning controller is adapted to enable the controller (5) to: generate a control output signal for the set of lighting units to display a light output pattern; and for a lighting unit within the set, to generate a further control output signal, to change the light output pattern at the lighting unit to enable the lighting unit within the set to be visually identified; a commiss

Abstract: A system can configure a luminaire for providing illumination of a selected color temperature, a selected lumen output, or a selected photometric distribution. The luminaire can comprise at least two light sources that have different illumination characteristics, for example different color temperatures, different lumen outputs, or different photometric distributions. The system can configure the luminaire to operate a first of the two light sources, a second of the two light sources, or both of the light sources based on an input. When the luminaire is configured to operate both of the light sources, the luminaire can produce illumination having a color temperature, a lumen output, or a photometric distribution that is different than either of the two light sources.

Abstract: The invention provides a lighting system (100) comprising a first lighting element (10) and a control unit (50), wherein: a) the first lighting element (10) is configured to provide first lighting element light (11) with controllable lighting intensity, wherein the first lighting intensity can be selected from a plurality of values in the range of 0-I, with I being a predetermined first lighting element maximum intensity; b) the control unit (50) is configured to maintain a first lighting element intensity, during a first predetermined period at an intensity value larger than zero when a general lighting intensity is below a predetermined first threshold level; c) the control unit (50) is further configured to maintain the first lighting element intensity during a second predetermined period at an intensity value a*y*I when the general lighting intensity level is y*I, y being the factor the general lighting intensity is below I, with 0<y<1, the parameter a being a predetermined lighting setting with 0&l

Abstract: A load control device for controlling the intensity of a lighting load, such as a light-emitting diode (LED) light source, may include a power converter circuit operable to receive a rectified AC voltage and to generate a DC bus voltage, a load regulation circuit operable to receive the bus voltage and to control the magnitude of a load current conducted through the lighting load, and a control circuit operatively coupled to the load regulation circuit for pulse width modulating or pulse frequency modulating the load current to control the intensity of the lighting load to a target intensity. The control circuit may control the intensity of the lighting load by pulse width modulating the load current when the target intensity is above a predetermined threshold and control the intensity of the lighting load by pulse frequency modulating the load current when the target intensity is below the predetermined threshold.

Abstract: A high-power magnetron assembly includes a high-power magnetron and a compact magnetic field generator. The high-power magnetron includes a cathode configured to emit electrons in response to receiving a supply of voltage from a power supply. The high-power magnetron includes an anode configured to concentrically surround the cathode and to attract the emitted electrons across an interaction region between the cathode and the anode. The compact magnetic field generator includes a plurality of permanent magnets including: a cathode magnet that has a longitudinal axis of symmetry annularly and that is surrounded by the cathode and disposed within the magnetron; and an anode magnet configured to annularly surround an outer perimeter of the magnetron. An arrangement of the plurality of permanent magnets concentrically about the longitudinal axis of symmetry forms a specified magnetic field within the interaction region that bounds the electrons emitted within the interaction region.

Abstract: A circuit and method for controlling one or more light emitting diodes (LEDs) includes one or more LEDs connected to the emitter a transistor and controlling the brightness of the LEDs over a large range based on a voltage range at a base of the transistor controlled by an automatic adjusting mechanism.

Abstract: An LED module includes, on a circuit board, first to fourth electrodes, a first circuit including a first LED group, and a second circuit including second and third LED groups, a switch element and a detection element. The second circuit includes a first path leading from the second LED group to one end of the detection element, and a second path leading from the third LED group via the switch element to one end of the detection element. The first and second electrodes are connected to the first circuit, the third electrode is connected to the second and third LED groups, and the fourth electrode is connected to the other end of the detection element. The threshold voltage for light emission of the second LED group is larger than that of the third LED group. The switch element controls a current flowing through the second path in accordance with a current flowing via the detection element.

Abstract: The invention relates to a plasma source (1) for depositing a coating onto a substrate (9), which is connectable to a power source (P) and includes: an electrode (2); a magnetic assembly (4) located circumferentially relative to said electrode and including a set of magnets mutually connected by a magnetic bracket (46) including a first and second central magnet (43, 44) and at least one head magnet (45); and an electrically insulating enclosure (5) arranged such as to surround the electrode and the magnets.

Abstract: Systems and methods providing a downloadable custom light emitting diode (LED) blinking pattern for a controller, which performs backplane or enclosure management. The controller has a memory, which stores data of a standard LED blinking pattern. When no custom LED blinking pattern data is available in the memory, the controller controls the LEDs to perform a standard blinking pattern based on the standard LED blinking pattern data to indicate the of the storage drives. A user may generate a custom pattern file, which contains custom LED blinking pattern data, and then use a downloading tool to download the custom pattern file to the controller, such that the memory of the controller may store the custom LED blinking pattern data. Instead of using the standard LED blinking pattern, the controller may then control the LEDs to perform a custom blinking pattern based on the custom LED blinking pattern data.

Abstract: Light sources (10) for replacing fluorescent lamps comprise light circuits (3) with light emitting diodes, first and second terminals (1, 2) located at first and second ends of the light sources (10) for exchanging first signals with high-frequency ballasts, and converter circuits (4) for converting the first signals into second signals for feeding the light circuits (3). The converter circuits (4) comprise reactive circuits (5) for matching the light circuits (3) and the high-frequency ballasts and provide safety to persons when installing the light sources (10). The light sources (10) may further comprise protection circuits (7, 8) for protecting parts of the light sources (10) against problems. The protection circuits (7, 8) may comprise monitor circuits (7) for monitoring parameters of the light sources (10) and for in response to monitoring results short-circuiting outputs of the converter circuits (4), and fuses (8). The reactive circuits (5) may comprise protecting capacitors (51, 52).

Abstract: An electrical wiring device includes a manually adjustable switch, a light emitting diode (LED), a light level sensor, and a microcontroller. The wiring device also optionally includes an occupancy sensor. Light level is sensed through a light pipe and light is emitted by the LED through the same light pipe. When the manually adjustable switch is positioned to energize a load, the LED is deactivated and ambient light level is sensed by light sensors through the light pipe. The ambient light level is compared to a minimum ambient light level to determine if the load will be energized. Alternatively, the LED is deactivated and the ambient light level is sensed through the light pipe when the switch is positioned to de-energize the load. This ambient light level is stored and compared to the minimum ambient light level at a time when the switch is later positioned to energize the load.

Abstract: A light-emitting element includes a light-emitting section and a driving circuit that drives the light-emitting section. The driving circuit includes at least (A) a drive transistor that is a p-channel field effect transistor, (B) an image-signal writing transistor that is a p-channel field effect transistor, (C) a light-emission control transistor that is a p-channel field effect transistor, and (D) a capacitor. Each of the drive transistor, image-signal writing transistor, and light-emission control transistor is provided in an n-type well formed in a p-type silicon semiconductor substrate. A first source/drain region of the drive transistor is electrically connected to the n-type well in which the drive transistor is formed.

Abstract: A thermal management system for reducing or eliminating heat-mediated degradation of LED performance and/or operating life. The system may include a thermal controller arranged to respond to an LED operating condition, and to responsively limit temperature in the LED. The thermal controller in one implementation includes a bypass circuit containing a bypass control element, such as a varistor, Zener diode, or antifuse device, and arranged to divert current from flowing to the LED so that the LED remains in a cool state, e.g., below 75° C. The system may be arranged to (I) at least partially attenuate the power supplied to an LED so as to reduce heat generation in such LED and maintain the LED below a threshold temperature and/or (II) remove heat from the LED to maintain temperature of the LED below a threshold temperature.

Abstract: A discharge lamp and a method for forming the lamp, the lamp including a ceramic discharge vessel defining at least part of a cavity containing a metal halide (MH) chemical filling having a power factor of between about 0.75 and 0.85 located within the cavity; and one or more feedthroughs having first and second ends, the first end located in the cavity. The cavity may have an internal length LINT and an internal diameter DINT that are proportional to each other, such that an aspect ratio defined as LINT/DINT is less than or equal to two. The lamp may be started and operated with a probe-start ballast without an internal igniter circuit or without a starting electrode (or internal igniter).

Abstract: A wireless detection and control device is provided, which is applicable a lighting device, and may include a first connection interface, a processing module, a detection module and a control module. The first connection interface may be detachably coupled to the power conversion module of the lighting device. The processing module may be coupled to the first connection interface. The detection module may include two second connection interfaces, and be detachably coupled to the processing module via one of the second connection interfaces; the detection module may detect the change of the surrounding environment to generate a detection signal. The control module may be detachably coupled to the processing module. The detection module may transmit the detection signal to the power conversion module, or transmit the detection signal to the control module for the control module to generate a control signal accordingly so as to control a controlled device.

Abstract: Systems and methods (1400) for packaging an electronic component (108, 110) in an electronic device (100). The methods involve: circumscribing the electronic component with a multi-purpose component (120, 122) at least partially formed of a transparent material and a compressible material. A water tight seal is created by the multi-purpose component between the electronic component and a housing (102) of the electronic device. The multi-purpose component provides an indicator for indicating a location of the electronic component on the electronic device to a user thereof in dark or semi-dark environments. The indicator is provided by emitting light from the multi-purpose component. The multi-purpose component also communicates status information of the electronic device to the user by emitting light therefrom. Various types of status information can be communicated to the user by emitting different colored light from the multi-purpose component, respectively.

Abstract: A lighting circuit which supplies current to a solid-state light-emitting element module (LED module) including: a solid-state light-emitting element (LED); a first connection terminal connected to one end of solid-state light-emitting element; a third connection terminal connected to another end of the solid-state light-emitting element; and a second connection terminal, includes: a characteristics detector that detects one of open and short circuits between the third connection terminal and the second connection terminal; and a power controller that adjusts current that is supplied between the first connection terminal and the third connection terminal of the solid-state light-emitting element module, to a predetermined value greater than zero, when the characteristics detector detects one of the open and short circuits between the third connection terminal and the second connection terminal.