Abstract: A wake-up system includes an illumination apparatus and an interface apparatus. A wake-up time is input to the interface apparatus. The illumination apparatus varies output and color temperature of wake-up light that it irradiates. The output of the irradiated wake-up light is increased from a wake-up operation start time to the wake-up time. Color temperature of the wake-up light is controlled to become higher in one period than in another period between the wake-up operation start time to the wake-up time.

Abstract: A LED illumination device and validation methodology of LED illumination device's lifespan, comprises a controller, timing chip and low-voltage DC power supply, the controller is connected to the display terminal, the timing chip is positioned inside the LED illumination device, so as to get real-time recording of the operating time of the LED illumination device which is transmitted to the display terminal for display; meanwhile, a light sensor is placed in the luminous zone to obtain luminosity data so as to measure real-time luminous maintenance rate. When the measured luminous maintenance rate gets lower than the luminous maintenance rate predetermined for critical lifespan, the operating time recorded by the LED illumination device at this moment is the lifespan of this LED illumination device.

Abstract: According to one embodiment, a lighting system includes a luminaire and a lighting control device. The lighting control device includes an operation section, a target-value managing section, a transmitting section, and a display section and controls the luminaire. The target-value managing section stores an operation state of the luminaire and, when the operation section is operated, calculates an operation target value on the basis of the stored operation state of the luminaire and updates the operation state to the operation target value serving as an operation state of the luminaire after the operation. The transmitting section transmits the operation target value as a radio signal. The display section performs display based on the operation target value.

Abstract: Control system for sea turtle lights uses regulated lights, based upon satellite generated day signals and non-regulated lights. A user programmable timer permits the user to set time of day lighting operations. A seasonally fixed timer, fixed with a governmentally approved sea turtle season permits activation of the regulated lights. Outside of turtle season, non-regulated lights are used. The user turns ON and OFF the lights daily. An integrated lighting control system includes a central control unit having the user programmable timer and the seasonally fixed timer and the receiver with a processor and memory which generates lighting commands. A controllable light selector switch receives the lighting commands via a wired or wireless network. The method controls lights affecting sea turtles, which lights are subject to governmental regulation and seasonal operation. All light controls are further based upon the user set time of day and day of week lighting times.

Abstract: A mobile device having an augmented reality user interface for use in controlling networked light modules. The mobile device can detect via a camera a light module and display an identification of the light module on a user interface such as a touch screen. A user can enter a command via the user interface such as a desired intensity or color for the light module. In response, the mobile device transmits a signal to the light module in order to control the operation of the module based upon the command.

Abstract: An LED-based lighting system having an upgradeable control system and a method thereof are provided. The system includes an LED source having a plurality of LED lights, a control system which comprises a motherboard, a control panel, and a control module. The control module is replaceable with a new control module to provide upgrades of operational modes and features of the lighting system without requiring the entire lighting system be replaced.

Abstract: An improvement in a light therapy device including multiple light-emitting diodes (LEDs) positioned in a handheld portable device is disclosed. Where the housing and the LEDs are configured to have direct contact with the skin or tissue of the user without any intermediary materials, and light the surface and underlying layers of tissue for photodynamic stimulation of the cells. Two iterations of the device utilize light known to have a bactericidal effect in the case or acne or Rosacea. The devices are fabricated from an injection molded plastic housing. The housing contains an arrangement of 36-72 LEDs on a circuit board in an arrangement to provide even lighting over the skin or tissue surface.

Abstract: A light-emitting diode (LED) device includes first and second LED dies with the same structure and that are both encapsulated by the same silicone layer. The first LED is supplied with sufficient drive current to illuminate the LED. Control circuitry supplies the second LED with a constant current, determines the voltage across the second LED, and calculates the temperature of the second LED based on the voltage across the second LED. The constant current has a maximum magnitude that never exceeds the maximum magnitude of the drive current. The LED device is able to calculate the temperature of a diode with a gallium-nitride layer (GaN or GaInN) that is receiving a large drive current and emitting blue light by determining the voltage across an adjacent similar diode with a gallium-nitride layer through which a small constant current is flowing. Preferably, the band gap of the LEDs exceeds two electron volts.

Abstract: A lighting device which includes: a light source; a receiving unit which receives a control signal from outside the lighting device via wireless communication; and a control unit which causes the light source to emit light according to the control signal received by the receiving unit. When the receiving unit receives, from the outside the lighting device via the wireless communication, a test signal different from the control signal and for determining a state of the wireless communication, the control unit calculates a packet error rate of the test signal received by the receiving unit and causes the light source to emit light such that an emission state is changed according to a communication quality of the wireless communication determined based on at least the calculated packet error rate.

Abstract: The invention relates to a lighting arrangement with an operating device (3) and with an LED light source (4) which is controlled by said operating device and which is formed by at least two LEDs (4a, 4b, 4c), which emit light of different colors and together emit a white total light. The operating device (3) drives some of the LEDs (4a, 4b, 4c) forming the LED light source (4) which are intended to emit monochromatic (non-white) light in such a way that said LEDs emit light signals representing certain operating parameters.

Abstract: Short circuit failures and open circuit failures of light-emitting elements used for the backlight in an LCD panel can be reliably and easily detected. The voltage at the node between each series-connected light-emitting element array and a drive circuit is detected as a monitored voltage. A maximum detector detects the highest and a minimum detector detects the lowest of these monitored voltages. Short circuit or open circuit failure of a light-emitting element is detected by comparing the voltage difference between the maximum detector output and the minimum detector output with a specific reference voltage.

Abstract: The present invention relates to a dimming LED lighting system including a separate switch for adjusting the illumination of an LED lamp. The dimming LED lighting system according to the present invention includes a switch unit connected between a lighting switch and an on/off detection means in order to perform a snapping operation while the lighting switch is in an on state.

Abstract: In one aspect, the present disclosure relates to a self identifying light source including an emitter that produces visible light; and an autonomous modulator in electrical communication with the emitter that automatically and continually modulates the visible light produced by the emitter, wherein the modulated visible light represents an identification code of the light source. In some embodiments, the emitter is a light emitting diode (LED) and further comprising an LED driver that provides a specified voltage and current to each LED in the light source.

Abstract: A system for apparel-related and other illumination includes an electro-luminance portion defining a graphic image having regions of differing optical transmissibility, the electro-luminance portion further configured to removably join to a back surface of a garment or pendant related to the graphic image; a housing configured to removably join to a back side of the electro-luminance portion; and a processor contained within the housing, the processor configured to control functions of the electro-luminance portion, the processor including elements for controlling a level of luminosity of the electro-luminance portion in correlation to changes in levels of ambient sound.

Abstract: The present invention relates to a method for driving and to an associated command and control device for discharge lamps (2), for example high pressure sodium lamps (2), supplied by an alternating current electrical supply network. Both the method and the device provide the use of an electronic microprocessor (7) receiving on the input side data relating to the current drawn by the lamp (7) and connected on the output side to a power switch (6) for high frequency switching of the alternating current supply to the lamp.

Abstract: A load control system may include a load control device for providing power to an electrical load and a control device that may send instructions to the load control device for providing the power to the electrical load. The control device may communicate with the load control device using a link address assigned to the load control device. The load control device may provide power to the electrical load in a manner that causes the electrical load to indicate the link address assigned to the load control device. The link address may be identified by a user or a user device. The identified link address may be associated with a load control device identifier that may identify a physical location of a load control device that is assigned the link address. A user may control a load control device at a physical location by sending instructions via the link address.

Abstract: The present invention, according to a preferred embodiment, is directed to portable electronic devices which operate on exhaustible power sources, for example, batteries. The electronic devices of the present invention comprise at least one signal switch and a microchip in communication with the switch wherein the switch is only capable of transmitting a signal to the microchip that the switch has been activated or deactivated. The microchip is in communication with the exhaustible power source of the electronic device and controls (i) the power on/off function of the device, (ii) at least one other function of the device in response to activation and deactivation signals from the switch, and (iii) an automatic shut off function in response to the receipt of an activation signal from the switch.

Abstract: A controller for a system is provided. The controller includes an intelligent control having a memory and a wireless transceiver. The controller is synced with a system, such as a lighting system, wirelessly. The wireless connection provides constant feedback between the controller and the system such that the controller is able to control operation of the system, to receive feedback from the system, and to receive updates based on changes to the system. The system includes modular components that may be easily configurable and changeable. The modular components are automatically identified by the system and the new information is automatically sent to the controller to update the controller of a change to the system.

Abstract: Motion sensing dock lighting systems are disclosed. An example lighting system for use at a loading dock where a material handling device is used to load or unload a vehicle parked at the loading dock includes a motion sensing system to be spaced apart from the material handling device. The motion sensing system is to provide an operation signal in response to the material handling device undergoing a change in travel direction within the vehicle. The example lighting system also includes a lamp to be operatively connected in signal communication with the motion sensing system so as to receive the operation signal from the motion sensing system. The lamp is to have a first illuminating mode and a second illuminating mode, and the lamp is to switch between the first illuminating mode and the second illuminating mode in response to the operation signal.

Abstract: A motherboard includes a central processing unit (CPU), a drive, and a voltage-state display system to display a voltage mode of the CPU. The voltage-state display system includes a power management chip, a first transistor, a second transistor, a first light emitting diode (LED), and a second LED. A first phase output terminal of the power management chip is connected to the first LED through the first transistor. A second phase output terminal of the power management chip is connected to the second LED through the second transistor. The LEDs indicate the voltage mode of the CPU.

Abstract: A system for controlling a lamp comprises a central controller having a waveform converter capable of modulating a control signal at more than one frequency over a two wire power cable. The control signal is capable of modifying a property of the lamp. The central controller also has a load current sensor capable of identifying the configuration of the lamp. The system further comprises a lighting control unit coupled to the lamp. The lighting control unit is powered via the two wire power cable and is capable of demodulating the control signal.

Abstract: Driving a light-emitting element by a driver capable of testing at least an open or short condition of the light-emitting element. In particular, a driving signal is generated to drive the light-emitting element. It is evaluated based on the value of the driving signal whether a predetermined condition is reached. If so, a latch signal is output indicating that the testing has finished.

Abstract: A lighting device for vehicle lights is provided that includes, but is not limited to LEDs arranged in a combined parallel/series circuit. A first photodiode is used to recognize the lighting of a first LED and a second photodiode is provided to recognize the lighting of a second LED of the plurality of LEDs.

Abstract: An improved LED traffic signal is provided. The LED traffic signal suitably includes a housing with an opening, a printed circuit board coupled to the housing, and a power supply system coupled to the printed circuit board. The power supply system includes a power supply module that receives an AC input voltage from an AC input line and transforms the AC input voltage into a DC voltage with a regulated current to power the LED load, and a synchronized power pulse circuit connected to the power supply that generates a synchronized power pulse representing a power consumption substantially equivalent to that of a halogen or incandescent traffic signal.

Abstract: Provided herein are systems and methods for outdoor lighting, which generally include two or more light sources. One light source is a monochromatic light source producing a light with a peak wavelength of about 580 nm or above. A second light source is a polychromatic light source producing a green-tint white light. During a standby operational mode, a control system maintains the first light source illuminated. The control system, which includes an integrated imaging system, illuminates both the first light source and the second light source when the imaging system identifies a target in an illumination area. Methods of preparing and using such outdoor lighting system are also provided.

Abstract: A usage time correcting engine, and corresponding method, system, apparatus, and computer product are provided. Over a period of time that an LED lighting fixture is being used to provide light, a usage time correcting engine indirectly measures an internal temperature of a component of the fixture. The indirect measurement is based on a measured external temperature of the component and power output supplied to or provided by the component. The usage time correcting engine determines a multiplier as a function of the indirectly measured internal temperature. The usage time correcting engine multiplies the period of time by the multiplier to provide a corrected measurement of usage of the component. In some examples, the usage time correcting engine determines a remaining lifetime of the LED lighting fixture from the corrected measurement and then reports the remaining lifetime to a user by way of a log, flashing light or other notification/indication.

Abstract: A LED illumination device and validation methodology of LED illumination device's lifespan, comprises a controller, timing chip and low-voltage DC power supply, the controller is connected to the display terminal, the timing chip is positioned inside the LED illumination device, so as to get real-time recording of the operating time of the LED illumination device which is transmitted to the display terminal for display; meanwhile, a light sensor is placed in the luminous zone to obtain luminosity data so as to measure real-time luminous maintenance rate. When the measured luminous maintenance rate gets lower than the luminous maintenance rate predetermined for critical lifespan, the operating time recorded by the LED illumination device at this moment is the lifespan of this LED illumination device.

Abstract: Disclosed herein are an apparatus and method for controlling a lighting network. The apparatus for controlling lighting network includes a control device and a plurality of control gears. The control device generates and transfers commands to control lighting. The plurality of control gears receives the commands from the control device and control lighting. The control device assigns a right to use a lighting network to the control gears, and the control gears send information about a change in a lighting state or error details to the control device using the right to use a lighting network.

Abstract: A lighting system includes an EL unit having a light emitter, a holding frame that holds the EL unit, and a control unit that controls lighting of the EL unit, wherein the holding frame includes a rail-shaped conductive member, and power and communication signals are transmitted between the control unit and the EL unit through the conductive member. With this configuration, since the connection between the control unit and the EL unit is made by the conductive member provided on the holding frame, which holds the EL unit, space for wiring in a residential space can be reduced. Further, simply by placing the holding frame on a mounting surface and attaching the EL unit and the control unit to the holding frame, they are connected. Therefore, without special skills, a resident can install the lighting system as appropriate and can easily replace the EL unit.

Abstract: Described embodiments include an incandescent lighting system and a method. A described system includes a gas filled and sealed glass envelope. The system includes a gas filled glass envelope. The system includes at least two filaments enclosed within the glass envelope. Each filament of the at least two filaments is configured to generate visible light in response to a flow of electric current. The system includes a sensor configured to detect an aspect of a filament of the at least two filaments and to generate a sensor signal indicative of the aspect. The system includes a controller circuit configured to manage the at least two filaments in response to a filament management schedule. The filament management schedule includes adjusting a flow of electric current through a filament of the at least two filaments in response to the sensor signal.

Abstract: Disclosed herein are embodiments of failure alerting systems for LED lamps and LED lamps having the same. An illustrative failure alerting system comprises a photodetector configured to detect an actual light output from the at least one LED, a regulator configured to receive a signal from the photodetector when the actual light output is below a target light output and to increase a current to the at least one LED to maintain the target light output, and a low light output indicator configured to receive a signal from the photodetector when the actual light output remains below the target light output and to produce a low light output signal. A thermal sensor can also be included and configured to sense an operating temperature of the LED and to control the regulator to increase the current and the target light output to ensure the operating temperature does not exceed the target temperature.

Abstract: A control unit controls an operation of an electric power conversion unit so that load current that flows through a light source load becomes a constant value, using electric power setting value that is used to determine a size of electric power that is supplied to the light source load and a current detection value that is detected by a current detection resistor (current detection unit), and a load electric power calculation unit obtains load electric power of the light source load using the electric power setting value and a voltage detection value that is detected by a voltage detection unit, and an input electric power estimation unit corrects a circuit loss for the obtained load electric power and estimates input electric power.

Abstract: A portable electric lamp including a lighting module, a compact housing enclosing an electric power storage unit configured to provide a power supply current to the lighting module, means for measuring a current consumed by the lighting module, determination means configured to generate a lighting current set point, calculation means for calculating a maximum authorized current from a difference between the consumed current and a reference current and for calculating a maximum authorized current threshold from the minimum value between the lighting current set point and the maximum authorized current, and limiting means configured to limit the power supply current to a value lower than or equal to the maximum authorized current threshold.

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 functional control adapter for light generating devices includes a female portion, a male portion, and a control module. The female portion has an inlet body. The inlet body has a housing member having a first contact module. The male portion has an outlet body connected to the inlet body. A second contact module is disposed on the exterior of the outlet body. The control module is located at the inlet body and connected electrically to the first contact module of the female portion and the second contact module of the male portion. The adapter and the light source are joined separately, thus the lighting device can be dismounted or installed with convenience, and individual parts can be replaced as needed for reducing repair cost.

Abstract: Methods and systems for monitoring operation of an LED string. An exemplary system includes an LED string, a circuit that supplies current to the LEDs, a current measuring circuit that measures current through the LEDs, a voltage measuring circuit that measures voltage across the LEDs, and a temperature sensor that measures temperature proximate to the LEDs. A processor calculates a predicted string voltage based on a predefined voltage-current curve, number of LEDs, a predefined temperature coefficient value, the measured string current, a measured junction temperature, a life curve function, a prestored calibration string current value, a prestored calibration string voltage value, a prestored junction calibration temperature and an accumulated time value. The process also calculates an error value based on the predicted string voltage and a measured string voltage and generates an indication that there is a failure in the LED string if the calculated error value is greater than the predefined error limit.

Abstract: Provided is an ion generating device for an air-conditioner duct, which can be easily attached to the inside of an existing air conditioner duct and can ensure a desired ion generation quantity. The ion generating elements of the sub-units (3, 4, 5) of the ion generating device are connected to the drive circuit of the ion generating device main unit (2), and are driven by the drive circuit.

Abstract: According to one embodiment, a lighting system includes a luminaire and a lighting control device. The lighting control device includes an operation section, a target-value managing section, a transmitting section, and a display section and controls the luminaire. The target-value managing section stores an operation state of the luminaire and, when the operation section is operated, calculates an operation target value on the basis of the stored operation state of the luminaire and updates the operation state to the operation target value serving as an operation state of the luminaire after the operation. The transmitting section transmits the operation target value as a radio signal. The display section performs display based on the operation target value.

Abstract: Methods and systems for easily integrating a light-emitting diode (LED) light assembly with an existing xenon power supply. An exemplary system includes a xenon power supply that includes an energy storage device and a device that commands the energy storage device to discharge the stored energy and transmit a trigger signal after a predefined amount of time since at least one of a previous discharge or a beginning of initial charge of the energy storage device. The LED light assembly includes one or more LEDs and a current regulator that receives the discharge from the storage device and regulates current to the LEDs based on LED requirements. The LED light assembly also includes a processing device that receives the trigger signal, resets and begins a timer upon reception of the trigger signal and deactivates the current regulator when the timer has reached predefined threshold.

Abstract: Embodiments of the invention provide a light module for a pool cleaner. The light module can include a housing, a paddle wheel, a generator, and at least one light emitting diode (LED). The housing can be removably coupled to the pool cleaner and can include a flow directing portion positioned in a fluid path of the pool cleaner. The paddle wheel can be located adjacent to the flow directing portion and can rotate in response to fluid flow through the fluid path. The generator can be coupled to the paddle wheel and can generate power through rotation of the paddle wheel. The LED can be coupled to the generator and can receive the generated power from the generator to illuminate an area adjacent to the pool cleaner.

Abstract: The invention comprises a method for indicating that an LED flash light for an aircraft such as an anti-collision or beacon or strobe LED light has reached a near-end-of-life status, wherein the LED flash light under normal operational condition within a given time interval generates a predetermined number of normal flashes with the number being one or more than one, e.g. two. The method comprises the steps of determining the actual photometric condition of the LED flash light, and comparing the actual photometric condition to a given condition in a normal flashing mode. If the actual condition deviates from the given condition by more than a predetermined amount, the LED flash light is operated in order to generate within the given time interval one additional near-end-of-life-indicating flash.

Abstract: There is provided a method of determining the state of a signal lamp. The method includes receiving time series data corresponding to an electrical signal used to power a signal lamp. The state of the signal lamp can switch from one of the following states to another of the following states: an on state, an off state, and a flashing state. The method also includes determining the state of the signal lamp, based at least in part on both the time series data and an amplitude value of the electrical signal relative to an amplitude-change threshold value over a determined number of amplitude changes.

Abstract: A ballast. The ballast includes a lamp driver and a controller. The lamp driver is configured to power a gas discharge lamp, and the controller, which includes a non-volatile memory, is configured to control the lamp driver and to save one or more parameters related to operation of the gas discharge lamp in the non-volatile memory.

Abstract: A usage time correcting engine, and corresponding method, system, apparatus, and computer product are provided. Over a period of time that an LED lighting fixture is being used to provide light, a usage time correcting engine indirectly measures an internal temperature of a component of the fixture. The indirect measurement is based on a measured external temperature of the component and power output supplied to or provided by the component. The usage time correcting engine determines a multiplier as a function of the indirectly measured internal temperature. The usage time correcting engine multiplies the period of time by the multiplier to provide a corrected measurement of usage of the component. In some examples, the usage time correcting engine determines a remaining lifetime of the LED lighting fixture from the corrected measurement and then reports the remaining lifetime to a user by way of a log, flashing light or other notification/indication.

Abstract: The present invention is a device which automatically reports an obstruction lighting outage creating or canceling a Notice to Airmen (NOTAM) without the need for human intervention. This system greatly reduces the time between detection of a lighting outage and notification of aviation authorities, thus minimizing hazards to air traffic. In addition, this device will create a new NOTAM and cancel the original NOTAM just prior to the original NOTAM expiring if the problem has not been fixed before the original NOTAM expires.

Abstract: An exit light and an emergency light which have a function to indicate a residual charge of a storage battery are provided for users to efficiently check the residual charge of the battery by using a bar graph indicating unit formed on a front portion.

Abstract: An illumination device obtaining an internet protocol (IP) address from a dynamic host configuration protocol (DHCP) server includes a first sensor, an illumination unit, a processor, and a registered jack 45 (RJ-45) interface. The first sensor is configured to output a first detecting signal with respect to an ambient luminance. The illumination unit includes a lighting module and a driving module capable of controlling operation status of the lighting module. The processor is configured to output a control signal to the driving module according to the first detecting signal. The RJ-45 interface enables the illumination device to be coupled to a client over a network. The client is utilized to monitor the illumination device remotely.

Abstract: An illumination method includes emitting light suitable for providing illumination for human activities; detecting an animal indication signal indicative of the presence of an animal; and temporarily changing at least one property of the light in response to the detected presence of the animal.

Abstract: A lighting controller may optimize a timeout value of a lamp based on the goals of saving energy and providing occupant comfort. The lamp may illuminate a lighting area. The lighting controller may determine a false-negative rate for the lamp from sensor data that represents a frequency at which the lamp is timed out while the lighting area is occupied. The lighting controller may adjust the timeout value of the lamp over time so that the false-negative rate approaches a threshold false-negative rate. The false-negatives and occupancy periods may be detected from spikes in time distributions of motion data. The amount of energy that the lamp would consume at an increased timeout value of the lamp may be determined from motion data stored while the timeout value of the lamp is at an initial timeout value.

Abstract: The present invention, according to a preferred embodiment, is directed to portable electronic devices which operate on exhaustible power sources, for example, batteries. The electronic devices of the present invention comprise at least one signal switch and a microchip in communication with the switch wherein the switch is only capable of transmitting a signal to the microchip that the switch has been activated or deactivated. The microchip is in communication with the exhaustible power source of the electronic device and controls (i) the power on/off function of the device, (ii) at least one other function of the device in response to activation and deactivation signals from the switch, and (iii) an automatic shut off function in response to the receipt of an activation signal from the switch.