Abstract: One or more light sources, one or more detectors, a processor, and a controller are configured to provide spot illumination that follows a moving object, a moving occupant, or a portion of a moving occupant in the vehicle.

Abstract: A device for controlling ambient lighting of a vehicle includes a light element in a vehicle interior, a touch-sensitive display unit, and a control unit. The light element emits light in one of a plurality of colors that can be generated by the light element. The display unit displays a plurality of colors of a predefined color spectrum simultaneously in a color scale, and detects a location of a user input made by touching the display unit. Via the detected location, the user input is assigned to an associated color displayed in the color scale and information about the color assigned to the user input is transmitted to the control unit, which controls the light element for emitting light in the color assigned to the user input. The light element and display unit have the same color space, such that the color associated with the user input, displayed on the display unit are the same.

Abstract: A light-emitting component is disclosed. In an embodiment a light-emitting component includes at least four light sources configured to emit light of different wavelength ranges in pairs and a control device configured to operate the light sources independently of one another in such a way that light from at least two of the light sources is mixed to form a mixed light and adjust an mv,mel,D65 value of the mixed light, wherein the at least four light sources include a first light source configured to emit electromagnetic radiation with a dominant wavelength of at most 450 nm, a second light source configured to emit electromagnetic radiation with a dominant wavelength of at least 480 nm and at most 520 nm or a dominant wavelength of at least 455 nm and at most 470 nm, a third light source configured to emit electromagnetic radiation in a spectral range of green light, and a fourth light source configured to emit electromagnetic radiation in a spectral range of yellow and/or amber light.

Abstract: A device for interactive and location-dependent control of lighting properties, such as intensity or colour temperature, of at least one LED high bay with a downward directed light beam, in for instance a warehouse or industrial premises. The device includes a control for controlling at least one LED high bay; a presence sensor which emits a presence signal to the control when the presence sensor detects a person or object, such as a forklift truck driver or a forklift truck; and includes an activity sensor which emits an activity signal to the control when an activity, such as for instance a lifting movement of a forklift truck, is detected and the control, when the presence signal and the activity signal are received simultaneously, generates a control signal for the control of the intensity level of the at least one LED high bay.

Abstract: A digital addressable lighting interface (DALI) controlled device is arranged to communicate information according to a DALI protocol and powered by electrically coupling the controlled device to a DALI bus. The DALI bus is monitored for initiation of a DALI communication sequence. During a period of non-communication on the DALI bus, a high-current power supply is electrically coupled to the controlled device via the DALI bus. The high-current power supply provides a first high-current power signal to the controlled device. Upon detection of any DALI communication sequence on the DALI bus, the high-current power supply is electrically de-coupled from the controlled device for a determined time period. During the determined time period, a storage element is electrically coupled to the controlled device. The storage element provides a second high-current power signal to the controlled device.

Abstract: A light dimming system includes one or more lights and includes a local light controller that includes a dimming controller and a processing circuit, the dimming controller configured to provide an output to the one or more light drivers. One or more electronic processors are configured to receive a dimming input value indicating a desired dimming level for the one or more lights. The processors are further configured to determine a configuration of the one or more light drivers, wherein the configuration defines whether the one or more light drivers utilize a non-linear dimming curve or a linear dimming curve, and provides the dimming controller a dimming level to output a dimming control signal to the one or more light drivers equivalent to the received dimming input value based on a non-linear or linear calculation.

Abstract: The utility model discloses a light emitting control circuit of a knob, which includes a first Hall switch, a moving magnet that controls the on-off of the first Hall switch, and a second Hall switch, wherein the moving magnet can move above the circumference where the first Hall switch is located, the first Hall switch is connected to a first light emitting group, an output of the first Hall switch is connected to a second light emitting group through a control switch, the second Hall switch is connected to a third light emitting group, and changes of colors such as two and three colors are achieved by changing the position of the moving magnet between the first Hall switch and the second Hall switch.

Abstract: The system for lighting control may include a non-transitory storage medium storing executable instructions for lighting control, a communication component operatively connected to the non-transitory storage medium, at least one imaging device configured to capture images related to an area, and one or more illuminating device configured to light the area. The system may also include at least one processor in communication with the non-transitory storage medium. When executing the set of instructions, the at least one processor may cause the system to obtain image data relating to an area captured by the at least imaging device and determine at least one parameter relating to at least one of the one or more illuminating devices. The system may further include a control component configured to operate the at least one of the one or more illuminating devices to light the area based on the determined at least one parameter.

Abstract: An LED module with sleep mode includes a detection circuit, a driver circuit, and at least one LED. A control unit of the driver circuit receives and stores a lighting command according to a lighting drive signal, and controls lighting behaviors of the at least one LED according to the lighting command. When the driver circuit detects that the voltage of the lighting drive signal decreases below a first threshold value, the driver circuit performs signal identifications of the lighting drive signal. When the driver circuit detects that the voltage of the lighting drive signal decreases below a second threshold value through a second detection signal provided by the detection circuit, the driver circuit enters a sleep mode from a working mode, and minimizes the discharge speed of the lighting drive signal.

Abstract: A light control system comprises a light control device and a sensor module configured to detect a motion pattern of a user's hand relative to the entranceway and a light control device. The light control device includes a housing, a proximity sensor configured to detect a position of a door in a vicinity of the entranceway, and a light controller disposed in the housing and communicated with the sensor module and the proximity sensor. The light controller is configured to control the light strip in response to a detected position of the door by the proximity sensor; and control the light strip in response to the motion pattern detected by the sensor module when the door is not detected at a preset opening position or no door is present at the entranceway.

Abstract: A system includes a luminaire and an input/output device. The luminaire includes a housing and a light emitting element supported on the housing, and the light emitting element is in electrical communication with a power source. The input/output device is supported on the housing and is configured to detect activity in an area proximate the luminaire. The input/output device includes a camera having a lens.

Abstract: The invention provides a control system (1000) comprising an electrical power control system (100) for monitoring electrical power consumption by a target system (200), wherein: —the target system (200) comprises (i) one or more dimmable electronic devices (210), wherein each dimmable electronic device (210) comprises a lighting device (220), wherein the one or more dimmable electronic devices (210) are operable at a plurality of different dimming conditions thereby defining a dimming range of the one or more dimmable electronic devices (210) with a predetermined relation between the plurality of different dimming conditions and an electrical power consumption by the one or more dimmable electronic devices (210), (ii) a target control system (230) configured to control the dimming conditions of the one or more dimmable electronic devices (210), and (iii) a source of electrical power (240) configured to provide electrical power to the one or more dimmable electronic devices (210); —the electrical power control

Abstract: The present invention provides a backlight unit and a control method thereof, and a liquid crystal display device. The control method includes steps as follows: obtaining backlight data corresponding to each partition, wherein the backlight data comprises a plurality of bits of data; dividing the light-emitting unit of each partition into a plurality of subfields with different durations in a light-emitting process during a frame, wherein each subfield corresponds to one bit of data, and any two subfields comprise different numbers of secondary subfields; and outputting the plurality of subfields in a preset order.

Abstract: An LED light unit comprises an LED assembly and a light sensor to measure light emitted by the LED assembly and having a measurement range; a current source to drive the LED assembly at an LED current A control device is configured to: pre-heat the LED assembly by driving the current source to operate the LED assembly at an operating current; the LED assembly thereby illuminating the light sensor at a light level above the measurement range; interrupt operating the LED assembly during a stray light measurement time; and read an output signal of the light sensor; operate the LED assembly at a measurement current, to emit light at a measurement level; subtract the output signal of the light sensor during the stray light measurement time from the output signal of the light sensor during the light measurement time to obtain a stray light corrected light measurement signal; scale the stray light corrected light measurement signal by a scaling factor based on a ratio of the operating LED current and the measurem

Abstract: A light source module for plant cultivation includes a main light source, an auxiliary light source unit, and a controller. The main light source unit emits background light which is visible light for growth of a plant. The auxiliary light source unit emits auxiliary light including UVB, UVC, or both to increase the content of phytochemicals in the plant. The controller controls operation of the main light source unit and the auxiliary light source unit based on a control signal.

Abstract: The present invention discloses a lighting system for monitoring human activity within an enclosed environment. The system comprises one or more light fixtures including a thermal sensor housed within a sensor housing coupled to each light fixture, wherein the thermal sensor is communicatively coupled to the light fixture and configured to capture a plurality of thermal images indicative of human activity surrounding a fixture within the enclosed environment, wherein each thermal image includes a grid having a plurality of pixels corresponding to a section of the enclosed environment, a processor configured to receive the plurality of thermal images from the thermal sensor, wherein the processor is in data communication with the thermal sensor and the light fixture and a wireless transceiver communicatively coupled to the processor.

Abstract: A multimode switch includes a wireless transceiver, that transmits/receives messages over a wireless network; a line voltage switch, coupled to a line voltage and associated devices; a switch controller, responsive to first messages received over the wireless network, that directs the line voltage switch to provide line voltage to, and subsequently remove line voltage from, the associated devices, and that receives identifying information and functional group designation for the associated devices in second messages over the wireless network, and that controls the associated devices according to the identifying information and functional group designation via transmission of third messages over the wireless network; and a ground leakage power supply, coupled to an AC hot line and to an earth ground, that generates a regulated voltage to power the wireless transceiver and the switch controller without requiring connection to an AC neutral line, while limiting ground leakage current to the earth ground to a pre

Abstract: A dimmable light source for emitting white overall radiation may include a dimmer and a light-emitting diode. The dimmer may vary a current intensity of a current for operating the light-emitting diode during the operation of the light source. The LED may include a semiconductor layer sequence to emit primary radiation, and the LED may further include a conversion element configured to at least partially convert the primary radiation into secondary radiation having a first emission band with a first emission maximum ranging from 400 nm to 500 nm and a second emission band with a second emission maximum ranging from 510 nm to 700 nm. A relative intensity of the first emission band may reduce with decreasing current intensity of the current for operating the LED, and a relative intensity of the second emission band may increase with decreasing current intensity of the current for operating the LED.

Abstract: System and method for voltage conversion to drive one or more light emitting diodes with at least a TRIAC dimmer. For example, the system includes: a phase detector configured to receive a first rectified voltage generated based at least in part on an AC input voltage processed by at least the TRIAC dimmer, the phase detector being further configured to generate a digital signal representing phase information associated with the first rectified voltage; a voltage generator configured to receive the digital signal and generate a DC voltage based at least in part on the digital signal; and a driver configured to receive the DC voltage and affect, based at least in part on the DC voltage, a current flowing through the one or more light emitting diodes; wherein the current changes with the phase information according to a predetermined function.

Abstract: A luminaire network improves energy efficiency, reduces light pollution, improves the robustness of luminaire control, and reduces maintenance time and costs by implementing intelligent and selective lighting control. For example, the luminaire network may automatically control dimming, light activation, light deactivation, static or dynamic luminaire grouping, and luminaire group control by implementing a hybrid control scheme that accounts for (i) local or global fixed schedules (e.g., based on time of day, worker schedules, etc.), (ii) detected daylight, (iii) detected motion of workers, and (iv) feedback from luminaires in the luminaire network. Further, one or more electronic devices (e.g., mobile devices) may couple to the luminaire network and may facilitate easy monitoring, configuration, and manual control of luminaires in the luminaire network, even when remotely connected to the luminaire network (e.g., via the cloud).