Abstract: An ionizing arrangement for electrically charging particles in an air flow in an air duct, said air duct including a section B extending along an axis A. The arrangement includes: a shielding electrode intended to be arranged within the air duct, said shielding electrode including: a portion for arrangement in a plane substantially transverse to the longitudinal axis A, said member has a shape corresponding to the cross sectional shape of the duct. The arrangement furthermore includes at least one corona electrode arranged in the center of the portion, wherein the shielding electrode is further arranged to provide shielding of an electromagnetic field emanating from the corona electrode.

Abstract: The RF generator is provided with a first RF power source and a second RF power source that generate RF waves of different frequencies from each other, and respectively supply RF power to a first antenna and a second antenna that are installed in a plasma reactor.

Abstract: An antenna device includes a case, a first antenna and a second antenna in the case, the second antenna including a capacitance loading element. The capacitance loading element includes an inclined portion which extends from a front-upper side toward a rear-lower side at a front side of the capacitance loading element. The first antenna is provided in a front side with respect to the inclined portion.

Abstract: Systems and methods for producing a lighting design for an event at a venue. One system includes a lighting fixture configured to project a light beam, an input device configured to receive a user input, and a controller including an electronic processor and a memory. The controller is configured to determine a path of the light beam, receive a first user input indicating a target of interest, and receive a second user input assigning a characteristic to the target of interest. The controller is configured to detect a collision between the path of the light beam and the target of interest, determine, in response to the collision, whether to project light onto the target of interest based on the characteristic, and control the lighting fixture to project the light beam on the target of interest.

Abstract: The embodiments of the present disclosure provide a method and a system for controlling intelligent street lamps in a smart city based on an Internet of Things, the method is realized by a system for controlling intelligent street lamps in a smart city based on the Internet of Things, the system for controlling intelligent street lamps in a smart city includes a user platform, a service platform, a management platform, a sensor network platform and an object platform, the method is executed by the management platform, comprising: receiving road information acquired by the object platform through the sensor network platform, the road information including ambient light intensities and road images, and the object platform including a first sensor; determining road environment information based on the road images; and determining irradiation intensities of the street lamps on a road based on the ambient light intensities and the road environment information.

Abstract: An area lamp includes an emitter array and driver circuitry. The emitter array includes a number of solid-state light emitters. Each one of the solid-state light emitters is configured to provide light suitable for general illumination within a field of view such that light emitted from a first subset of the number of solid-state light emitters is provided to a different portion of the field of view than light emitted from a second subset of the number of solid-state light emitters. The driver circuitry is coupled to the emitter array and configured to provide drive signals to the emitter array such that the light provided from each one of the solid-state light emitters is independently controllable and a number of drive signals is less than the number of solid-state light emitters.

Abstract: An optical device for displaying a condensing mark includes a light source, and an optical element for condensing light emitted from the light source onto an irradiated surface. A lamp controller acquires a detection signal from a state detection device mounted on the vehicle and configured to detect a behavior of and peripheral environmental information of the vehicle, and light or blink the optical device. The optical device displays a plurality of condensing marks by arranging each of them side by side in at least the travelling direction of the vehicle on a lane orthogonal to a lane on which the vehicle exists, and one of the plurality of condensing marks to be displayed on a display region farthest from the vehicle is different in color from another one of the plurality of condensing marks to be displayed on a display region closest to the vehicle.

Abstract: A brightness control method of an illumination device includes: obtaining a brightness of ambient light, determining an amount of supplementary light according to the brightness of the ambient light and target brightness if the brightness of the ambient light is less than the target brightness, and generating a first pulse signal according to the amount of supplementary light to control the illumination device to emit light.

Abstract: A remote control device may be configured to transmit command messages based on user interactions. The remote control device may receive an indication of a user interaction and transmit a command message based on the indication of the user interaction. The command message may include a command to adjust an intensity level of a lighting device and a fade period. The fade period may include the period of time over which the lighting device is to transition to the intensity level. After a transmission interval period of time from when the command message was transmitted elapses and based on a subsequent user interaction, the remote control device may transmit another command message, which may include a command for the lighting device to adjust to another intensity level over the fade period. The fade period may be longer than the transmission interval.

Abstract: Alight system used in an ambient environment is provided. The light system comprises an emitting device and a controller coupled to the emitting device. The emitting device is configured to provide a light impinging on a subject in the ambient environment. The controller is configured to control the emitting device. The light provided by the emitting device has at least 30% green light. A line extending from the emitting device to the subject and a plane at eye level of the subject in the ambient environment forms an angle of about 45 degrees. The light has a horizontal illuminance of about 2200 lux to about 2800 lux.

Abstract: A load control system has a system controller and a plurality of load control devices which receive power from a utility power source. The load control system also includes at least one emergency load control device which receives power from a backup power source in the event of a power failure of the utility power source. The emergency load control device is configured to enter an emergency mode during the power failure of the utility power source, wherein in the emergency mode, the emergency load control device controls respective electrical loads according to emergency mode preset settings, and the emergency load control device transmits a message to the system controller to indicate the emergency load control device is in the emergency mode. The system controller is configured to transmit a message to the emergency load control device to exit the emergency mode when power from the utility power source is restored.

Abstract: The invention provides a lighting device comprising a transmitter, a controller and a sensor; wherein the controller is configured to control the transmitter to repeatedly transmit a second wireless message interleaved with a first wireless message, wherein the first wireless message has a first duration and comprises a first signal, wherein the second wireless message has a second duration and comprises a second signal; wherein the first duration and/or the second duration is adaptive during a lifetime of the lighting device; wherein the controller is configured to receive a measurement from the sensor and control the transmitter to transmit the second wireless message comprising the second signal comprising the measurement.

Abstract: Aspects of the disclosure provide for a circuit including a binary-weighted DAC, a first transistor, a second transistor, a switch, a first current mirror, a second current mirror. The binary-weighted DAC is coupled between a first node and a second node and configured to receive a plurality of bits of a digital control signal. The first transistor has a source coupled to the first node, a drain coupled to a third node, and a gate coupled to a fourth node. The second transistor has a source coupled to the first node, a drain coupled to the third node, and a gate. The switch is coupled between the gate of the second transistor and the fourth node and configured to receive a partition control signal. The first current mirror is coupled to the third node and the second node. The second current mirror is coupled to the first current mirror.

Abstract: A LED controller for an LED pixel array includes an image frame buffer to receive image data and a standby image buffer connected to the image frame buffer to hold a standby image. A command and control module connected is configured to substitute the standby image in the standby image buffer for the image in the image frame buffer when image data is unavailable.

Abstract: A controller and a method for controlling at least two light sources is disclosed.

Abstract: Disclosed herein are methods, systems, and devices for providing optimized simultaneous illumination for human vision and machine based navigation vision on a semi-autonomous vehicle. In one embodiment, a system includes a first control output configured to provide first illumination control information including first active cycle times for a first illumination source. The first illumination source is configured to provide a first frequency band of illumination for machine vision navigation of the semi-autonomous vehicle. The system further includes a second control output configured to provide second illumination control information including second active cycle times for a second illumination source. The second illumination source is configured to provide a second frequency band of illumination for a human driver of the semi-autonomous vehicle. The system further includes a first monitor input configured to receive ambient illumination information from a camera system.

Abstract: The present invention provides a band-pass filtering adaptive response method and system for music lamp strip. The method comprises the following steps: Step 1: obtaining sound data acquired by a microphone in real time, and sequentially filtering the obtained sound data through a low-pass filter; Step 2: classifying the filtered sound data by a volume classifier, so as to classify the continuous changes of sound into a number of discrete classifications; Step 3: determining a BPM of the sound data according to a classification result of the volume classifier; Step 4: determining a acquisition frequency of MCU according to the determined BPM; Step 5: acquiring the classification result of the volume classifier by MCU according to the determined acquisition frequency; Step 6: controlling color change and/or brightness change of LED lamp on the music lamp strip according to the classification result acquired by MCU.

Abstract: A dimmable ballast circuit for a compact fluorescent lamp controls the intensity of a lamp tube in response to a phase-control voltage received from a dimmer switch. The ballast circuit comprises a phase-control-to-DC converter circuit that receives the phase-control voltage, which is characterized by a duty cycle defining a target intensity of the lamp tube, and generates a DC voltage representative of the duty cycle of the phase-control voltage. Changes in the duty cycle of the phase-control voltage that are below a threshold amount are filtered out by the converter circuit, while intentional changes in the duty cycle of the phase-control voltage are reflected in changes in the target intensity level and thereby the intensity level of the lamp tube.

Abstract: Provided is a negative ion irradiation device in which an object is irradiated with a negative ion. The device includes a chamber that allows the negative ion to be generated therein, a gas supply unit that supplies a gas which is a raw material for the negative ion, a plasma generating portion that generates plasma, a voltage applying unit that applies a voltage to the object, a control unit that performs control of the gas supply unit, the plasma generating portion, and the voltage applying unit. The control unit controls the gas supply unit to supply the gas into the chamber, controls the plasma generating portion to generate the plasma in the chamber and to generate the negative ion by stopping the generation of the plasma, and controls the voltage applying unit to start voltage application during plasma generation and to continue voltage application after plasma generation stop.

Abstract: The invention proposes a communication adaptor, comprising within one casing: a transmission antenna, a wired control interface connected to wired control interface terminals, a control circuitry for converting wirelessly received wireless communication signals into wired control interface signals and vice versa, wherein the adaptor is designed such that it can be brought in close contact with a reception antenna of a converter for lighting mean, such as e.g. LEDs, in order to establish a wireless communication, wherein the control circuitry and the wired control interface are powered by means of the wired control interface terminals.