Abstract: Apparatuses, systems and methods for regulating the output currents of a power supply at a target output current include a buck converter module operably connected to a power source and a load. A first switch couples the power source to the buck converter module during a first period of a given operating cycle, while the buck converter module stores and provides electrical power to the load. During a second period, the buck converter may discharge the electrical power stored during the first period. A current sensor senses the currents during at least one of the first period and the second period and, over the operating cycle, the switching is adjusted so the average output current equals the target output current. Adjustments to the first and second period durations result in maximum and a minimum currents symmetrically disposed about the average current provided to the load during the operating cycle.

Abstract: The present invention provides a sensor and an illumination lamp with the sensor. The illumination lamp with the sensor includes an illumination lamp, a sensor mounting base disposed in the illumination lamp, a sensor electrically connected to the sensor mounting base in a plug-in manner by telescopic conductive pins. A sensing module disposed in the sensor generates a corresponding electrical signal after detecting a triggering signal, to control the lamp on or off. The illumination lamp with the sensor is artistic and practical, without external wiring, complicated mounting steps and wiring connection. Meanwhile, different functional modules, such as a microwave sensing module, an infrared sensing module, a light sensing module, a Bluetooth control module, a WIFI control module, an Internet control module, a smoke sensing module, a fire sensing module and a security monitoring module with special purposes can be selectively mounted in the sensor to realize corresponding functions.

Abstract: An illumination system for a lighting assembly comprises a light assembly configured to selectively illuminate an operating region in a surgical suite and a plurality of light sources positioned within the light assembly and configured to emit light. The system further comprises at least one imager configured to capture image data and a controller. The controller is configured to scan the image data in at least one region of interest for a shaded region and identify a location of the shaded region within the region of interest. The controller is further configured to control the light assembly to activate at least one of the light sources to emit light impinging on the shaded region within the region of interest.

Abstract: The present disclosure provides a combinational circuit and a control circuit. The combinational circuit is applied to an LED drive circuit and includes a detection module and a drive and logic conversion module connected with the detection module. The detection module is configured to detect a state of an external switch, generate a detection signal according to the state of the external switch as detected, and send the detection signal to the drive and logic conversion module; and the drive and logic conversion module is configured to receive the detection signal from the detection module, generate a driving signal according to the detection signal, and drive an operation state of a discharge module for discharging an output electrolytic capacitor of the LED drive circuit by using a state of the driving signal.

Abstract: An LED lighting apparatus, including an LED light source configured to emit white light having a first melanopic/photopic (M/P) ratio; a tuning LED light source configured to emit tuning blue light having a peak wavelength in a range of 465 nm to 495 nm; and a driving control unit configured to control currents respectively applied to the LED light source and the tuning LED light source to generate tuned white light having a second M/P ratio higher than the first M/P ratio

Abstract: A lighting appliance includes a housing, a lighting element disposed in the housing is capable of displaying multiple color temperatures, a control unit disposed in the housing, an electrical communication system in communication with the lighting element and the control unit, and a sensor disposed on a portion of the housing, where the sensor is in communication with the lighting element and the control unit via the electrical communication system, and when a motion signal is detected by the sensor, the control unit is configured to instruct the lighting element to illuminate in a predetermined light mode for a predetermined time.

Abstract: An interactive display system includes a display device and a user device. The display device includes a controlling unit and lighting units, and the controlling unit transmits a color signal to the lighting units. When the user device emits an active light signal to the lighting units, the lighting unit that receives the active light signal lights up according to the color signal. Namely, when the user uses the user device to emit the active light signal to the lighting units of the display device, the lighting units illuminated by the active light signal can light up. Therefore, the user can use the display device as a canvas, and the user can draw a picture or write a memo on the display device for interacting with the display device of the interactive display system.

Abstract: A sensing module and an electronic device are provided. The sensing module includes a substrate, at least one light-emitting unit, a light-guiding assembly, at least one sensing circuit structure, and a sensing processor. The light-guiding assembly is connected to the substrate and includes at least one light-guiding structure. The at least one light-emitting unit is configured to emit a light beam outwardly through the at least one light-guiding structure. One end of the at least one sensing circuit structure is disposed on the substrate. The sensing processor is disposed on the substrate, and is configured to sense a capacitance change in a peripheral area of the at least one sensing circuit structure by the at least one sensing circuit structure and to generate a sensing signal. The sensing processor or an external controller is configured to control the at least one light-emitting unit according to the sensing signal.

Abstract: The invention provides a user interface for controlling a multichannel lighting unit wherein each channel of the multichannel lighting unit comprises at least one light source for emitting light having a channel-specific spectral composition, the spectral composition associated with one channel being different from the spectral composition associated with another channel, and a light output from each channel being individually controllable, the user interface comprising at least two user interaction elements, each user interaction element associated with a color producible with the multichannel lighting, each user interaction element comprising: (a) a static scale representing a static range of control values for controlling a light output of the multichannel lighting unit in respect of the color associated with the user interaction element; (b) a dynamic scale representing a dynamic range of control values for controlling a light output of the multichannel lighting unit in respect of the color associated wit

Abstract: A tunable lighting system includes a first LED having a first spectral output, a second LED having a second spectral output, and a correction circuit including a correction LED. The correction circuit in the tunable lighting system controls the correction LED to emit light that, when combined with light output from the first LED and light output from the second LED, produces a selected spectral characteristic.

Abstract: The invention relates to the technical field of shoe lights; in particular, to a shoe light device capable of flashing in different modes and a driving method thereof. A motion sensor, an integrated chip and a light-emitting device are integrated on a shoe, and the motion sensor and the light-emitting device are electrically connected to the integrated chip. The integrated chip is configured to control the light-emitting device to emit light in a preset constant-sequence output mode when the duration of reception of pulse signals generated by the motion sensor reaches a preset threshold, so that trigger control over the light-emitting device is realized. The shoe light device capable of flashing in different modes has the advantages of high integrity of elements, simple structure, simple production process, and various integrated cyclic output modes for flashing of the light-emitting device.

Abstract: A system for controlling a display in which each pixel circuit comprises a light-emitting device, a drive transistor, a storage capacitor, a reference voltage source, and a programming voltage source. The storage capacitor stores a voltage equal to the difference between the reference voltage and the programming voltage, and a controller supplies a programming voltage that is a calibrated voltage for a known target current, reads the actual current passing through the drive transistor to a monitor line, turns off the light emitting device while modifying the calibrated voltage to make the current supplied through the drive transistor substantially the same as the target current, modifies the calibrated voltage to make the current supplied through the drive transistor substantially the same as the target current, and determines a current corresponding to the modified calibrated voltage based on predetermined current-voltage characteristics of the drive transistor.

Abstract: A lighting control system includes: a light fixture including a first light emitting device configured to emit light having a correlated color temperature in the range of ±500 K from a prescribed value, a second light emitting device configured to emit light having a correlated color temperature in the range of ±500 K from the prescribed value, and an emission controller configured to cause the light fixture to irradiate illumination light by controlling irradiation percentages of the light emitted from the first light emitting device and the light emitted from the second light emitting device; and an information processing apparatus communicably connected to the light fixture, the information processing apparatus comprising a dimming controller configured to change the irradiation percentages of the light emitted from the first light emitting device and the second light emitting device in accordance with a time of day by transmitting dimming instructions.

Abstract: A color-mixing lighting control method is used for receiving an original color-mixing light data to control a color-mixing light source. The color-mixing light source includes a plurality of light-emitting elements to produce a plurality of emission colors. The original color-mixing light data includes a plurality of original light intensity values corresponding to the emission colors. The color-mixing lighting control method comprising: determining a maximum value of the original light intensity values; calculating the light intensity percentage of each of the emission colors in the original color-mixing light data according to the original light intensity values; generating the corrected light intensity value of each of the emission colors according to the maximum value and the light intensity percentage of each of the emission colors; and respectively controlling the light-emitting elements by using the corresponding corrected light intensity value of each of the emission colors.

Abstract: A method and controller for selecting media content based on a lighting scene, the method comprising: selecting the lighting scene, the lighting scene having properties comprising one or more lighting properties; determining one or more of the properties of the selected lighting scene; selecting media content based on the determined one or more of the properties, wherein the media content comprises audio content; controlling a media device to output the selected media content; and adjusting one or more of the lighting properties based on the audio content of the selected media content.

Abstract: According to one embodiment, an electrostatic chuck includes a ceramic dielectric substrate, a base plate, and first and second porous parts. The ceramic dielectric substrate includes first and second major surfaces. The second major surface is opposite to the first major surface. The base plate supports the ceramic dielectric substrate and includes a gas feed channel. The first porous part is provided in the ceramic dielectric substrate and is opposite to the gas feed channel. The second porous part is provided in the base plate and is opposite to the gas feed channel. The ceramic dielectric substrate includes a first hole part positioned between the first major surface and the first porous part. The first porous part includes a first porous region including pores and a first dense region. The second porous part includes a second porous region including pores and a second dense region.

Abstract: A system using a handheld device for programming lighting instruments, which is operable on the DALI system, includes a wireless control module electronically connected and integrated with the DALI system; and a handheld device, having two-way communication with the wireless control module wirelessly. The handheld device has a graphical user interface wherein the graphical user interface has functional blocks. One functional block, which programs groups of functional blocks, includes menus. The screen of each menu is divided into first and second display areas. The handheld device accesses the initialized addresses of the lighting instruments in the DALI system from the wireless control module and displays the non-programmed icons of lighting instruments in the DALI system in the second display area. By dragging the lighting instrument icons displayed in the second display area into the first display area, programming groups of the lighting instruments can be accomplished.

Abstract: A LED light apparatus includes a first light source, a second light source, a PWM generator, a control signal generator and a manual switch. Users operate the manual switch to adjust a duty ratio setting of the PWM generator for adjusting a first control signal and a second control signal for controlling the first light source and the second light source to generate a desired light.

Abstract: A system and method are disclosed for lowering the sound levels in an indoor environment or space. The system detects and measures the sound decibel level, processes the information, and provides a control signal to a lighting control module. The lighting control module alters the intensity of the lights (dims or brightens) or wavelength of the light (color) in the environment. The dimming or color change of the lights is an indicator to the people in the environment to lower the sound in the environment.

Abstract: Systems and methods for an interactive modular lighting system are described. The lighting systems enable users to dynamically build a luminaire through a modular joining of individual light-emitting units, however such that risk of electrical failure is automatically prevented through a dynamic computation of electrical circuit properties and dynamic configuration of components. Additionally, lighting systems with granular and configurable touch sensing are described, wherein a user's interaction with the lighting system can be coupled to actuation of properties of the lighting system or of properties of other devices in communication with the lighting system. Illustrative embodiments of applications of said lighting systems in smart home and gaming are provided.