Abstract: The present invention is directed to a method for brightness compensation in at least one light emitting diode. The proposed method achieves an always constant brightness of an LED irrespective of temperature fluctuations. The invention is further directed to a respectively configured device as well as a memory module for use in the proposed method.

Abstract: A modular wireless lighting control device includes a wireless interface device that includes a wireless transceiver, a first controller, and a power supply. The wireless transceiver is in electrical communication with the first controller. The wireless interface device receives lighting control instructions wirelessly via the wireless transceiver. The modular wireless lighting control device further includes a lighting control device in electrical communication with the wireless communication device. The lighting control device includes a second controller and control interface circuitry. The control interface circuitry is compatible with a light fixture.

Abstract: A load control system may include control devices for controlling electrical loads. The control devices may include load control devices, such as a lighting device for controlling an amount of power provided to a lighting load, and controller devices, such as a remote control device configured to transmit digital messages for controlling the lighting load via the load control device. The remote control device may communicate with the lighting devices via a hub device. The remote control device may detect a user interface event, such as a button press or a rotation of the remote control device. The remote control device or the hub device may determine whether to transmit digital messages as unicast messages or multicast messages based on the type of user interface event detected. The remote control device, or other master device, may synchronize and/or toggle an on/off state of lighting devices in the load control system.

Abstract: A solid-state horticultural lamp is disclosed. The lamp emits a spectrum of light including a first local emission peak between 400-500 nm and a first spectral power distribution (SPD) intensity and a second local emission peak between 500-600 nm and a second SPD intensity, wherein the second SPD intensity normalized to the first SPD intensity is between 0.15-0.35. The spectrum further includes a third local emission peak between 600-700 nm and a third SPD intensity, wherein the third SPD intensity normalized to the first spectral power distribution intensity is between 2.4-2.8. In some cases, a photosynthetic photon flux (PPF) of the light between 600-700 nm is between 3.5-4.5 times a PPF of the light between 400-500 nm, and a PPF of the light between 600-700 nm is between 3.8-4.2 times a PPF of the light between 400-500 nm.

Abstract: Smart switch devices, systems, and methods for modifying an existing electrical system to utilize the power state output of a physical switch as an indicator or signal for the operation of a smart home device or system or network of such devices to facilitate interoperability of physical switches with smart devices. The smart switch detects or determines the power state of a circuit and infers the corresponding state of a mechanical switch that operates the circuit. This information is then transmitted to associated smart devices, which may not be physically connected to the circuit controlled by the switch. When the mechanical switch is operated, it can control both electrically attached loads, such as a conventional light or appliance, and wirelessly control unconnected smart devices.

Abstract: A headlamp for the conversion of an original headlamp of a vehicle, comprising: an input for each light function provided by the headlamp, wherein the input is configured to connect to a line of the on-board network of a vehicle for the associated light function, an output for connecting to an on-board network of the vehicle, a module for simulating a load current for those light functions that require considerably less power in the headlamp than the corresponding light source in the original headlamp, at least one light source with an associated electronic operating device for each light function of the headlamp, and a controller for controlling-the modules for simulating a load current and for controlling the light sources with the associated electronic operating device. The module for simulating a load current for each light source comprises a series circuit arrangement of a resistor and a switch.

Abstract: A method and apparatus for controlling a lighting system for providing illumination of a space, in which detected inputs or triggers give rise to updated illumination settings or patterns of illumination. A determination is made as to whether such an update should be applied automatically, or whether confirmation from a user should be sought before making any changes.

Abstract: A control device searches for a device to which a global identification (ID) including a manufacturer ID and a device ID is assigned in advance, by searching for the global ID. The manufacturer ID is set for each manufacturer using m bits, and the device ID is uniquely set by each manufacturer using n bits. M and n each are a natural number. The control device includes: a storage storing the manufacturer ID; an inquirer designating a possible range of the global ID at a time when m bits indicated by the manufacturer ID stored in the storage are fixed, and making, to devices connected to the control device, an inquiry about whether a global ID assigned to the device is in the possible range; and a receiver receiving, from the devices, a response to the inquiry, the response indicating that the global ID is in the possible range.

Abstract: Apparatuses, methods and storage medium associated with an intelligent LED light apparatus are disclosed herein. In embodiments, an intelligent LED light apparatus may include a communication interface, a processor, a body that encases at least the communication interface and the processor, and a plurality of sensors of a plurality of sensor types disposed on the body. The processor may be configured to receive sensor data from the sensors, and transmit the sensor data or results from processing the sensor data to an external recipient. Further, for some embodiments, the intelligent LED bulb apparatus may further comprise LED lights, and the body further encases the LED lights. In other embodiments, the body may include a male connector to mate with a bulb receptor, and a female connector to mate with a LED bulb. Other embodiments may be disclosed or claimed.

Abstract: A server device can periodically obtain information concerning illuminance of ambient light from light sensors associated with light sources, and can obtain respective brightness level values associated with respective brightness levels of the light sources. The server device can calculate an illuminance value associated with the illuminance of the ambient light based on the information, determine an adjusted brightness level value for the light sources based on the illuminance value, and determine transition times and transition rates based on the respective brightness level values and the adjusted brightness level value. The server device can cause the respective brightness levels to change according to the adjusted brightness level value, the transition times, and the transition rates, where the transition times and the transition rates are to be used to transition the respective brightness levels of the light sources from the respective brightness level values to the adjusted brightness level value.

Abstract: A lighting device includes a housing and a power connector attached to the housing. The lighting device also includes a wireless lighting control device positioned inside the housing. The wireless lighting control device includes a wireless transceiver to wirelessly receive lighting control instructions and a control interface circuitry compatible with a lighting fixture driver. The wireless lighting control device further includes a controller communicably coupled to the wireless transceiver and to the control interface circuitry. The controller is configured to control the control interface circuitry based on the lighting control instructions received by the wireless transceiver.

Abstract: Systems and methods for maintaining the illumination intensity of one or more LEDs above a minimal intensity level. The systems and methods may include: (1) a current regulator for regulating the current in a circuit; (2) a voltage source for applying current to a circuit; (3) an LED with a minimal intensity level that correlates to a set-point temperature; and (4) a thermal sensor that is in proximity to the LED and adapted to sense a temperature proximal to the LED. The thermal sensor may transmit a signal to the current regulator if the sensed temperature exceeds the set-point temperature. Thereafter, the current regulator may take steps to regulate the current in order to maintain the LED illumination intensity above the minimal intensity level.

Abstract: A load control device for controlling the power delivered from an AC power source to an electrical load includes a thyristor, a gate coupling circuit for conducting a gate current through a gate of the thyristor, and a control circuit for controlling the gate coupling circuit to conduct the gate current through a first current path to render the thyristor conductive at a firing time during a half cycle. The gate coupling circuit is able to conduct the gate current through the first current path again after the firing time, but the gate current is not able to be conducted through the gate from a transition time before the end of the half-cycle until approximately the end of the half-cycle. The load current is able to be conducted through a second current path to the electrical load after the transition time until approximately the end of the half-cycle.

Abstract: A presence or an absence of an occupant is detected, and an occupancy sensor signal is generated representative of an active state in which the presence of the occupant is detected, and an inactive state in which the absence of the occupant is detected. An ambient light sensor detects the ambient light level and generates an ambient light sensor signal representative of the ambient light level. Dimmable illumination is generated at a first dimming level, based on the ambient light level, corresponding to the active state and a second dimming level corresponding to the inactive state. A transition delay time between an onset of the inactive state and a transition between the first dimming level and the second dimming level may be controlled. The first dimming level, the second dimming level, and/or the transition delay time may be variably set or controlled locally or via a remote device.

Abstract: A load control device (such as, a dimmer switch) for controlling the amount of power delivered from an AC power source to an electrical load (such as, a high-efficiency lighting load) includes a thyristor (such as, a triac) coupled between the source and the load, a gate coupling circuit coupled to conduct current through a gate terminal of the thyristor, a controllable switching circuit coupled between the gate coupling circuit and the gate terminal of the thyristor, and a control circuit configured to control the gate coupling circuit and the controllable switching circuit. The control circuit may cause the gate coupling circuit to conduct a pulse of current through the gate terminal to render the thyristor conductive at a firing time during a present half cycle of the AC power source, and allow the gate coupling circuit to conduct at least one other pulse of current after the firing time during the present half cycle.

Abstract: A control device is disclosed herein that comprises a base portion configured to be mounted over a toggle actuator of a mechanical switch that controls power delivered to at least one lighting load. In examples, the control device further comprises a touch sensitive surface configured to detect first and second user inputs. In examples, the control device further comprises a touch sensitive device and an actuation portion. The control device is configured to control the at least one lighting load in response to the user inputs, actuations of the actuation portion, a point actuation, and/or a gesture.

Abstract: A LTPS TFT comprises a substrate, and a buffer layer, a low temperature polysilicon layer, a source contact area, a drain contact area, a gate insulating layer, a gate layer, a dielectric layer, a source and a drain disposed on the substrate successively. The source contact area and the drain contact area are doped with metal ions individually. The source and the drain are connecting with the source and drain contact areas separately through the dielectric layer. The metal ions include at least one of Cu2+, Al3+, Mg2+, Zn2+ and Ni2+. A method of fabricating the LTPS TFT is also provided. An annealing is performed for driving individually metal ions of the insulation metal oxide layer into the source contact area and the drain contact area. Thus, the step of implanting p-type ions can be omitted, the procedure can be significantly simplified, and the manufacturing cost can be reduced.

Abstract: A lighting control system includes a plurality of lighting system elements that are connected together over at least one lighting control network. The lighting system elements include a network controller, a luminaire, or a lighting control device. Some of the lighting system elements are designated as client lighting devices. At least one of the lighting system elements is designated as a lighting control data synchronization master. The lighting control system allows for changes in lighting control setting data, without sacrificing performance and maintaining stability with network failures, by generation and utilization of lighting control data keys. For example, data synchronization replicates or transfers lighting control setting data when a state change in a lighting control setting is detected based on a comparison of a current lighting control data key with an original lighting control data key.

Abstract: A method of automatically commissioning a lighting system comprising a plurality of luminaires for illuminating one or more regions within a space. The method comprises: receiving signals from a positioning system, indicating a respective location within the space at which each of a plurality of physical entities is detected by the positioning system, each of the entities being a person or a movable nonhuman object. The method further comprises determining a spatial distribution of at least some of the entities based on the locations indicated by the signals from the positioning system, and determining a region within the space corresponding to this spatial distribution. The method then comprises identifying a group of the luminaires that are arranged to illuminate the determined region and storing identifiers of those luminaires together as a group in a commissioning database.

Abstract: Smart switch devices, systems, and methods for modifying an existing electrical system to utilize the power state output of a physical switch as an indicator or signal for the operation of a smart home device or system or network of such devices to facilitate interoperability of physical switches with smart devices. The smart switch detects or determines the power state of a circuit and infers the corresponding state of a mechanical switch that operates the circuit. This information is then transmitted to associated smart devices, which may not be physically connected to the circuit controlled by the switch. When the mechanical switch is operated, it can control both electrically attached loads, such as a conventional light or appliance, and wirelessly control unconnected smart devices.

Abstract: A system for locating an asset can include a first light fixture disposed in a volume of space and having a first transceiver, a first light source, and a first modulation circuit, where the first light source emits a first light output that defines a first line of sight, where the first modulation circuit generates and sends a first VLC signal that is part of the first light output, where a first light fixture location of the first light fixture in the volume of space is previously determined using the first transceiver during an auto-commissioning process. The system can also include a communication device associated with the asset, where the asset is disposed in the volume of space, where the communication device includes a second transceiver, where the second transceiver receives the first VLC signal from the first transceiver.

Abstract: An LED-based lighting fixture sets or adjusts a parameter of a drive signal that is used to drive its LEDs to be more compatible with the camera system; the camera system sets or adjusts an image capture parameter to be more compatible with the LED-based lighting fixture, or a combination thereof. The drive signal may be a PWM signal with a variable PWM frequency and/or duty cycle, a variable DC signal, or any combination thereof. The parameter of the drive signal that may be set or adjusted includes, but is not limited to, a PWM period, PWM frequency, PWM duty cycle, amplitude of the active and inactive portions of the PWM signal, and the like. The image capture parameter that may be adjusted includes, but is not limited to, frame rate, frame period, integration time, gain, shutter type (i.e. rolling shutter, global shutter, etc.), and the like.

Abstract: A method of providing power for non-lighting related loads in which operate during daylight hours when a lighting dedicated switched mains network (220) is switched off is described. The method comprises charging a battery (240) at night from the mains network when the luminaire is switched on so that the energy/power stored in the battery can be used during the day. A luminaire (200) comprises a luminaire light engine (210) connected the mains network (220), an AC/DC down converter (230) also connected to the mains supply so that the battery (240) is charged during the hours of darkness. The battery (240) is connected to provide power to a DC non-lighting related load (250) which is operable both during daylight hours and hours of darkness.

Abstract: Disclosed herein is a lighting system configured to obtain an indicator data of a RF spectrum signal generated by a number of receivers at a number of times in an area. At each respective one of the number of times, for each respective one of the receivers, apply one of a plurality of heurist algorithm coefficients to each indicator data for the respective time, based on results of the applications of the coefficients to indicator data, generate an indicator data metric value for each of the indicator data for the respective time, and process the indicator data metric values to compute an output value. The lighting system is further configured to compare the output value at each of the plurality of times with a threshold to detect one of an occupancy condition or a non-occupancy condition in the area and control the light source in response to the detected one of the occupancy condition or the non-occupancy condition in the area at each of the number of times.

Abstract: A wireless switch is provided. The wireless switch comprises a mechanical switch, an electronic switch module, a charger module, a power storage module, and a wireless control module. The electronic switch module is connected to the mechanical switch in parallel. When one of the mechanical switch and the electronic switch module is turned on, the power storage module is charged through the charger module.

Abstract: A vehicle lighting device configured to be disposed on a vehicle has a support board, a light source that is disposed on a front surface of the support board and that comprises a light emitting surface, a projection lens that faces the light emitting surface and that is disposed so that at least a part of light emitted from the light source passes through the projection lens, a drive circuit board that is disposed directly behind the support board and that comprises a circuit to control switching of the light source on and off, and a housing that supports the light source and the drive circuit board and that defines a part of a lamp chamber which houses the projection lens. A passage and a ventilation portion are formed in the housing. A power supply line to supply power to the circuit passes through the passage.

Abstract: A dimmable lighting system may replace a bi-level lighting system without having to modify or supplement the existing wiring between a bi-level control unit and one or more light fixtures. The dimmable lighting system may include a dimming controller that may be configured to replace a bi-level control unit in situ (i.e., e.g., in a wall-mounted dual-gang switch box). The dimmable lighting system may also include a dimming driver that may be coupled to the dimming controller via the existing wiring of the bi-level lighting system. The dimming controller may output to the dimming driver a 0-10 volt DC dimming signal referenced to an AC utility voltage. In response, a dimmable lighting device coupled to the dimming driver may output light over a wide range of dimming light levels. Methods of replacing a bi-level lighting system with a dimmable lighting system are also provided, as are other aspects.

Abstract: A lighting system includes various ballasts or LED drivers having respective dimming interface circuits coupled in parallel to an external dimming device. Each device includes a controller regulating output to a lighting load based on desired dimming output. Dimming interface circuits coupled are between the controller and the external dimming device, each configured to dynamically adapt a level of constant current sourced from the dimming interface circuit to the external dimming device via first and second interface terminals, based on a determined analog mode or digital mode associated with the external device. The dimming interface circuit generates dimming control signals to the controller based on dimming input signals received via the first and second interface terminals, and in a digital mode, the interface circuit generates digital pulse signals to the external dimming device via the interface terminals for bidirectional communications therewith.

Abstract: In accordance with various embodiments of the disclosed subject matter, a lighting control method, a related lighting apparatus and system are provided. One embodiment of the present disclosure provides a lighting control method. The method includes detecting a connection status of a wireless network component of a lighting apparatus and controlling a working status of an illumination component of the lighting apparatus based on the connection status.

Abstract: A load control device is configured to generate a control signal having a desired magnitude for controlling a load regulation device adapted to control the power delivered to an electrical load. The load control device may comprise a control terminal arranged to provide the control signal to the load regulation device, a communication circuit for generating the control signal, and a control circuit configured to generate an output signal that is provided to the communication circuit. The communication circuit may be characterized by non-linear operation. The control circuit may adjust the magnitude of the output signal in response to the difference between the magnitude of the control signal and the desired magnitude to adjust the magnitude of the control signal towards the desired magnitude. The control circuit may also be configured to determine if an incompatible load regulation device is coupled to the load control device.

Abstract: A remote control device may be configured to be mounted over the toggle actuator of a light switch and to control a load control device. The remote control device may include a mounting assembly and a control unit that is removably attachable to the mounting assembly. The mounting assembly may include a release tab that is configured to be operated from a locking position in which the control unit is secured to the mounting assembly, to a release position in which the control unit may be detached from the mounting assembly. The mounting assembly may include a clamp that is configured to engage with the toggle actuator of a mechanical switch to which the remote control device is mounted.

Abstract: Systems and methods for maintaining the illumination intensity of one or more LEDs above a minimal intensity level. The systems and methods may include: (1) a current regulator for regulating the current in a circuit; (2) a voltage source for applying current to a circuit; (3) an LED with a minimal intensity level that correlates to a set-point temperature; and (4) a thermal sensor that is in proximity to the LED and adapted to sense a temperature proximal to the LED. The thermal sensor may transmit a signal to the current regulator if the sensed temperature exceeds the set-point temperature. Thereafter, the current regulator may take steps to regulate the current in order to maintain the LED illumination intensity above the minimal intensity level.

Abstract: A lighting fixture having a light source, a light sensor, a communication interface, and circuitry is described. In addition to controlling the light source, the circuitry is adapted to monitor for a light signal provided from a handheld device via the light sensor; upon receiving the light signal, measure a signal level associated with the light signal; and effect transmission of the signal level to the handheld device via the communication interface. In one embodiment, the circuitry is further configured to receive an instruction to monitor for the light signal from the handheld device via the communication interface such that the circuitry begins monitoring for the light signal upon receiving the instruction.

Abstract: A mobile device comprises a sensor and a processor. The sensor is configured to wirelessly receive an identification signal including an item identifier code, the identification signal being emitted by a low-rate transmission device associated with an item, wherein the sensor receives the identification signal from a direction of the item. The processor is configured to generate an output signal based on the item identifier code.

Abstract: A driver circuit (21) for a light source (20) comprises an input configured for coupling to a power line (19). A control device (24) is configured to control at least one controllable switch (23) to control an output current or output voltage of the driver circuit (21). The control device (24) is configured to modulate a signal onto the power line (19) by setting a switching frequency of the at least one controllable switch (23) in dependence on data to be transmitted by the driver circuit (21; 121, 131) over the power line (19).

Abstract: A self-dimming light-emitting diode (LED) system is disclosed. The LED system may include a voltage regulation circuit, an ambient light sensor, and an LED. The LED system provides for a reduction in illumination intensity of an LED, proportional to a reduction in surrounding ambient light intensity. Surrounding ambient light intensity is detected by the ambient light sensor. The LED system provides an autonomous, reduced-power system for low ambient lighting environments.

Abstract: A flexible display device comprises a substrate having a flat portion and a curved portion, wherein a pixel array is provided in the flat portion and a pad portion connected to the pixel array is provided in the curved portion; and an encapsulation layer provided on the substrate to cover the pixel array, wherein the encapsulation layer comprises a terminal portion; an Integrated Circuit (IC) portion having at least one driving IC; and a lead portion having leads which connect the terminal portion and the driving IC portion, and wherein the curved portion of the substrate is bent so that the pad portion and the terminal portion are in contact with each other.

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: An outdoor lighting apparatus (1) for fixed installation is described, suitable to be connected to an electric mains to be supplied with mains supply voltage. The lighting apparatus (1) comprises at least one light source (6), a driving circuit (30) of the at least one light source (6). The outdoor lighting apparatus further comprises a control and communication circuit (20), suitable to control the driving circuit (30), comprising a processing and control unit (21), a memory unit (25), and a long-range communication interface (23) suitable to allow the control and communication circuit (20) communicating with a remote control device (60). The outdoor lighting apparatus is further equipped with a short range or very short range communication interface (24) suitable to interface with a communication and/or configuration mobile terminal to allow said mobile terminal accessing the memory unit (25) in writing and/or reading.

Abstract: A dimming control device configured to receive dimming input level data updated at intervals, and to control a dimming level of a light source based on the dimming input level data, includes: a memory that stores the dimming input level data received prior to the newest dimming input level data; and a generator that generates dimming output level data as data having higher resolution than the dimming input level data, the dimming output level data being generated as a function of the dimming input level data received and stored in the memory.

Abstract: An fabrication method of a waveguide sheet for a spectrometer includes the steps of: providing a pattern to be performed by a microelectromechanical (MEM) process; and forming at least one waveguide sheet based on the provided pattern by the MEM process. The pattern includes a shape of a first waveguide sheet. The waveguide sheet includes at least one positioning side and at least one stray light elimination side formed by the MEM process. The positioning side is for a spectral component of the spectrometer to abut against so that the spectral component is positioned at the positioning side, and the stray light elimination side is to be used as a side of a stray light outlet. The structure of the waveguide sheet and the configuration of the spectrometer are also provided.

Abstract: A method of video operations includes generating derivative byproducts related to encoded video captured of a scene, initializing a first operation based on the encoded video, and initializing a second operation different from the first operation based on the derivative byproducts.

Abstract: There is provided a portable electronic device including a backlight module, an ambient light sensor, a proximity sensor and a processing unit. The backlight module illuminates with backlight brightness. The ambient light sensor is configured to detect ambient light intensity. The proximity sensor is configured to detect an object. The processing unit is configured to activate the proximity sensor when the ambient light intensity detected by the ambient light sensor is lower than a predetermined value or decreases more than a predetermined range, and to maintain or reduce the backlight brightness according to a detection result of the proximity sensor. There is further provided an automatic detection method.

Abstract: A touch display device includes an organic light emitting diode display panel and a touch panel. The organic light emitting diode display panel includes an organic light emitting diode array having a plurality of pixel regions and a non-pixel region surrounding the pixel regions. Each of the pixel regions has an organic light emitting diode unit thereon, and a metal wire is located in the non-pixel region. The touch panel includes a transparent substrate, a sensing electrode layer and a light-shading pattern. The sensing electrode layer and the light-shading pattern are disposed on the transparent substrate, and overlapped each other. An orthogonal projection of the light-shading pattern onto the organic light emitting diode array is in the non-pixel region, and overlap the metal wire.

Abstract: A lighting device may include a light illumination portion, a light control portion, a sensing portion, a main control module, and a first connector. The light illumination portion may generate and illuminate light. The light control portion may control power applied to the light illumination portion. The sensing portion may include a sensor that senses an environment of a space to which the light illumination portion illuminates light. The main control module may be capable of communicating with an external device by a wireless communication and may control the light control portion according to a control signal from the external device. The first connector may be provided in the main control module and may connect the main control module and the sensing portion. The sensing portion may include a switch by which an operating signal of a user is input. Accordingly, a user is capable of conveniently using a sensor and a switch together.

Abstract: A switching mode power supply (SMPS) includes a transformer having a primary winding for coupling to an input power source, a secondary winding for providing an output voltage of the SMPS, and an auxiliary winding. The SMPS also has a power transistor coupled to the primary winding and a primary side control circuit coupled to the auxiliary winding and the power transistor. The primary side control circuit is configured to regulate the output of the SMPS by controlling the power switch in response to a feedback voltage signal that is representative of an output of the SMPS. The SMPs also has a secondary-side control circuit coupled to the secondary winding and being configured to cause the output voltage of the SMPS to discharge when the output voltage of the SMPS is higher than a first reference voltage.

Abstract: A control device of a luminaire includes a controller for controlling operation of the luminaire, which assumes a certain target lighting level as a response to a triggering local input signal. Through a communications module the device is configured to receive indication messages from the other devices. An adaptation module adjusts the operation of the control means in accordance with received indication messages. A relationship strength is determined, pertinent to a particular other device and indicative of regularity at which triggering local input signals have been observed after first receiving an indication message from said other device. The controller is reprogrammed to make the luminaire assume a preparatory lighting level as a response to receiving an indication message from said other device, the preparatory lighting level being dependent on the determined relationship strength.

Abstract: An electronic display includes a display side and an ambient light sensor configured to measure received light received through the display side. The electronic display also includes multiple pixels located between the display side and the ambient light sensor. The multiple pixels are configured to emit display light through the display side.

Abstract: A display system for providing multicolor light patches for illuminating display images includes at least one light source for providing a light, at least one light pipe having an input end and an output end for allowing the light to enter via the input end and exit via the output end, and at least one color interface coupled to the output end of the at least one light pipe. The at least one color interface includes at least one color material and each color material has a different color characteristic. Light passing through the color material creates an illumination patch associated with the color characteristic of the color material. The display system further includes an optical device coupled with the at least one color interface and configured to receive the illumination patches, combine the illumination patches, and cause a combined illumination patch to be projected as a display image.

Abstract: Light Emitting Diode (LED) based illumination devices in a lighting communications network may be commissioned into a group with a mobile electronics device, such as a mobile phone, tablet computer, etc. The identities of a plurality of LED illumination devices are determined and a request is communicated to the identified LED based illumination devices to modulate emitted light for a period of time. The modulated light is detected by the mobile electronics device, which may then determine a group of the LED based illumination devices. For example, the detected intensity of the modulated light may be used to determine the group. In another example, the physical locations of the LED based illumination devices are determined by detecting a sequence of images (e.g., video) of the modulated light, and the group may be determined based on the locations of the LED based illumination devices.