Abstract: Devices and methods for detecting a medical sensor device being attached to a host device are disclosed. The host device includes a reader circuit that can generate an AC pilot signal. When the medical sensor device is being attached to the host device, the AC pilot signal is fed to a non-linear circuit in the sensor device, which responds with a DC signal. The host device compares the magnitude of the response signal with a threshold magnitude. If the magnitude of the response signal is greater than the threshold magnitude, the host device determines that the sensor device is being attached and establishes connection with the sensor device.

Abstract: An LED lighting system comprising a luminaire and an emergency backup system is used to replace a fluorescent or an LED lamp normally operated with AC mains. When a line voltage from the AC mains is unavailable, the emergency backup system is automatically started to provide a high DC voltage larger than a minimum operating voltage of the luminaire. The emergency backup system comprises a rechargeable battery, a driver configured to convert a DC voltage from the rechargeable battery into the high DC voltage when enabled, and a voltage sensing and control circuit comprising a logic circuit and a relay switch configured to enable the driver and to couple the high DC voltage to two electrical conductors of the luminaire to operate the luminaire, no risk of damaging the luminaire.

Abstract: A flashlight assembly operates with a thermal optimization circuit which automatically, over time, reduces the duty cycle of the control circuit to reduce the temperature of the LED junction, improve LED performance and increase battery life.

Abstract: A system may include a light source. A converter may be configured to convert an AC voltage to a DC operating voltage during normal operation. A power backup device may be coupled to the converter. A current source may have a first terminal configured to receive the DC operating voltage during regular operation and a second terminal configured to provide a pulse-width modulated (PWM) signal to an anode end of the light source. A switching device may have a first connecting terminal coupled to the anode end of the light source, a second connecting terminal coupled to the power backup device, and a control terminal coupled to the converter. The switching device may be configured to open a switch between the first connecting terminal and the second connecting terminal during normal operation and close the switch upon detecting an interruption of the DC operating voltage at the control terminal.

Abstract: LED lighting systems, mounting configurations, and light fixtures are disclosed for original and retrofit configurations. Some configurations mount the light fixture with a mounting bracket that allows for the removal and replacement of the light fixture in about the same time as a traditional light bulb change. Some configurations provide for fuse removal and replacement without the need to dismount the light fixture from its mounting bracket or without the need to open the housing of the light fixture to access the fuses. Some configurations use a battery backup system and self-check methods with LED light fixtures configured for public transportation applications.

Abstract: An LED device comprises a substrate and a stack of layers defining an LED component and including an electroluminescent layer. A capacitive structure is formed on top of the stack of layers. The area of the defined capacitor encodes information concerning the electrical characteristics of the LED component.

Abstract: A back-up lamp light system has a portable light that is configured to be detachably attached to a lamp and is configured to automatically turn on in the event of a power outage. The portable light is configured to be retained by a mounting bracket to a lamp. The portable light may be detached from the mounting bracket and used as a flashlight. A portable light has a main light and a night light configured on opposing ends of the portable light. A back-up lamp light system may have a light level sensor that is configured to automatically turn on the nightlight in the event of a light level being detected below a threshold value. A back-up lamp light system may be portable and have a separate power cord or may be integral and have a power cord that extends through the interior of a lamp.

Abstract: A system is disclosed including, a light source; a converter configured to convert AC voltage to DC operating voltage; a power backup device coupled to the converter; a current source coupled to the power backup device, the current source being powered by the converter, the current source being configured to receive the DC operating voltage generated by the converter through the power backup device, and the current source being configured to output a pulse-width modulated (PWM) signal to the light source based on the DC operating voltage; and a switching device coupled to the power backup device in parallel with the current source, the switching device being configured to couple the light source to the power backup device when the current source is disabled as a result of a supply of AC voltage to the converter being interrupted.

Abstract: An emergency lighting device includes a housing containing a high voltage connection. A light emitter is connected to the housing. A compartment in the housing having an opening is separated from the high voltage connection. A battery is positioned in the compartment and accessible through the opening.

Abstract: A lighting control device having a first wireless communicator that wirelessly communicates with a lamp; first memory that stores identification information identifying the lighting control device; a first controller that transmits a control command for controlling the lamp to the lamp via the first wireless communicator; an operator interface suspended under its own weight; and a power generator that is connected to the operator interface, generates power from mechanical energy produced by the operator interface being moved in a predetermined direction, and supplies the power to the first controller, the first memory, and the first wireless communicator. Further, when the operator interface is moved and the first controller receives the power, the first controller reads the identification information from the first memory, transmits the identification information and the control command to the lamp via the first wireless communicator, so as to control the lamp.

Abstract: A processing unit in a dual-mode lighting fixture receives, via a light pipe of the lighting fixture, a test command signal from a remote control and initiates, based on the test command signal, testing for emergency condition lighting of the lighting fixture. The processing unit receives, via the light pipe, a control command signal from the remote control and controls, based on the control command signal, normal condition lighting of the lighting fixture. The processing unit also monitors feedback loops from a battery, a charger, or a set of LED lamps in the lighting fixture and presents, via the light pipe, a status color indication based on the monitored feedback.

Abstract: A LED-light includes a light frame and a light base connected with a first end of the light frame. The light base is of substantially cylindrical design and is provided with an Edison thread which extends concentrically around a central axis of the light base. Further, the LED-light includes a number of LEDs mounted in or on the light frame and at least one photovoltaic cell mounted in or on the light frame. Connected with the light frame or the light base is a battery, as well as an electric circuit. Connected to the electric circuit are the number of LEDs, the battery and the at least one photovoltaic cell.

Abstract: Method for controlling a plurality of luminaire units with at least one dedicated light source, and at least functionally connected control entity incorporating a wireless transceiver, the luminaire units configured to communicate via a mesh network established utilizing the wireless transceivers thereof, wherein at least one of the luminaires is electrically connected to a user-operable switch device for controlling the luminaire, the method including detecting, at the at least one luminaire, signal triggered by switching action, determining, in response to the detection, at the at least one luminaire unit a control action of the at least one light source and a message to be wirelessly transmitted in the mesh network to enable other luminaire units in the network to execute a responsive luminaire control action as configured in the control logic entities thereof based on the captured message, and executing the control action and transmission of the message.

Abstract: Described herein is a luminaire controller which is mountable within a luminaire head by means of fastening areas provided in a wall forming part of an upper housing part and/or a baseplate, the upper housing part and the baseplate forming a body for the luminaire controller. A flexible light guide is provided for transmitting light from the exterior of the luminaire head to a light sensor located within the controller. A lens may be provided at one end of the light guide at the wall of the luminaire head with the other end of the light guide being adjacent the light sensor. A terminal strip and an antenna jack are provided to which respective electrical connections can be made and an antenna can be connected by means of an antenna cable.

Abstract: The invention relates to a lighting system (1) comprising a lighting device (3) for emitting light in a high-power mode and for providing a further function like a sensing function in a low-power mode and a switch (4) connecting the lighting device with a power supply (2). The switch is switchable between a high-power state, in which a higher power is provided to the lighting device via the switch, which allows the lighting device to emit the light in the high-power mode, and which may be regarded as being an ON state, and a low-power state, in which a lower power is provided to the lighting device via the switch, which allows the lighting device to provide the further function, and which may be regarded as being an OFF state. Thus, for instance, a sensing function can be provided, even if the switch is in its OFF state.

Abstract: An emergency system including an auxiliary power supply, a charging circuit, a brown-out circuit, and a controller unit. The auxiliary power supply connected to a device. The charging circuit having an input voltage, provided by a mains power supply, and an output, configured to provide power to the auxiliary power supply. The brown-out circuit operably connected to the charging circuit and configured to sample the input voltage. The control unit receiving the sampled input voltage and activating the device when a brown-out condition is detected, the detection based on the sampled input voltage.

Abstract: A curing light device includes a body with a tip portion that has a plurality of elements for providing electrical energy to the distal end of the tip and for removing heat from the distal end of the tip. A light engine includes at least one light emitting element operable for emitting light and is positioned on the distal end of the tip portion. A power supply is positioned in the body and is rechargeable and includes at least one ultracapacitor element. Spring electrical contacts are positioned in the body and electrically coupled with the ultracapacitor element. The spring electrical contacts are spaced along the length of the body and configured for electrically engaging the tip portion along its length for delivering power to the light engine and for provide a spring alignment of the tip portion in the body.

Abstract: A Near Field Communication (NFC) tag placed inside a light fixture is provided with information by using a commissioning device such as a smartphone or other dedicated tool. For example, in one implementation, a light fixture in a smart lighting control system can be provided with a microcontroller that has access to the memory of a NFC tag. A commissioning device or tool with GPS and NFC capabilities obtains and writes GPS coordinates to the memory of the NFC tag. After the fixture is connected to the network, the smart system can then access the written GPS coordinates from the memory in the NFC tag. Based on this information, a user with access to the microcontroller (e.g., via computer network) can view the map of fixtures based on the obtained coordinates.

Abstract: A large plurality of artificial, battery-operated, electronic candles are arranged to be simultaneously recharged upon placement on a series of interconnected charging trays that include a transformer primary winding at defined locations thereon. The primary windings are driven by an AC signal whose duty cycle is controlled by a pulse width modulator IC to induce a voltage across secondary windings contained within the candle housing. This induced signal is rectified to produce the battery charging current and the delivery of the charging current to the rechargeable batteries is controlled by a microprocessor IC.

Abstract: A module comprises messaging logic configured to generate a same message for a plurality of destination lighting devices. The message comprises a first portion specifying the plurality of destination lighting devices, and a common second portion specifying the message as being of a type that requests lighting device information. The module also comprises a port configured to output this same message to the plurality of destination lighting devices. If one of the destination lighting devices responds to the message, the processing module receives back the response from the responding device via the port. In addition to identifying the responding one of the destination lighting devices, the response also specifies the requested information of that lighting device.

Abstract: A luminaire for use with power over an Ethernet emergency lighting is disclosed. The luminaire includes a rechargeable battery pack, an emergency backup LED driver, a normal lighting LED driver and an LED lamp. The luminaire also includes a power loss monitor that monitors the presence of normal lighting power present on a power over Ethernet link, and connects the emergency backup LED driver to the LED lamp through a relaying device in the event of a loss of normal lighting power. Furthermore, a method of detecting the power loss in a POE link segment is provided, wherein the method includes detecting a differential DC voltage between a first conductor in a first data pair on the POE link segment and a second conductor in a second data pair on the same POE link segment.

Abstract: An apparatus, system, and method for solid state lighting is envisioned which, according to aspects of the invention, provides primary event and/or utility lighting during normal power conditions, and which, during periods of interrupted power, provides uninterrupted event lighting for a desired duration, provides a gradual transition from event lighting levels to utility lighting levels, and provides a gradual transition from utility lighting levels to emergency lighting levels.

Abstract: An APU for an emergency light in case of a fire or power failure includes: a regular power input unit; an emergency power input unit; a changeover switch configured to switch the power input such that the emergency light is automatically turned on by the emergency power in case of a power failure of the regular power; a firefighting power monitoring relay operated by firefighting power when a fire occurs; a firefighting-power-monitoring-relay contact switch configured to connect power from an ATS to the emergency power input unit in connection with the firefighting power monitoring relay; a fire driving unit operated by the power inputted to the emergency power input unit; and an emergency light auto lighting switch configured to connect the emergency light to the regular power input unit, such that the emergency light is automatically turned on.

Abstract: There is provided a lighting device (100) comprising at least one light source for providing light, a envelope encompassing said light source, a base to which said envelope is engaged, and a control means for adjusting the lighting settings of said lighting device. The control means are arranged for detecting a position in relation to the base of a point of reference being movably arranged on the lighting device. The lighting settings are adjusted in response to the detected position.

Abstract: An emergency load control device includes a lighting relay that is coupled to a lighting load based on a relay control signal input. Further, the emergency load control device includes an emergency relay that is coupled to an emergency lighting load based on an emergency relay control signal input. Furthermore, the emergency load control device includes a power controller that is coupled to the lighting relay and the emergency relay. The power controller is configured to output the relay control signal input to the lighting relay and the emergency relay control signal input to the emergency relay to control the operation of the lighting load and the emergency lighting load respectively. In addition, the emergency load control device includes a dimmer control circuit coupled to the lighting load and the emergency lighting load. The dimmer control circuit controls dimming of the lighting load and the emergency lighting load.

Abstract: An emergency battery converter system provides a low-cost emergency battery converter and lighting system. The battery converter system includes an emergency battery pack, a lighting driver, and an emergency luminaire. In certain example embodiments, the emergency battery pack is coupled to a power delivery system and is charged by the power delivery system. The lighting driver receives power from the battery pack and steps up and regulates the power to be suitable for use by the emergency luminaire. In certain example embodiments, the emergency luminaire illuminates an egress area.

Abstract: Emergency lighting devices and methods are disclosed. An emergency lighting device includes a passive resonant converter circuit configured to be coupled to an emergency lighting module and to an input end of a group of solid state emitters, at which the group of solid state emitters receives a normal operation current from an LED driver. The passive resonant converter circuit is configured to receive an emergency operation current from the emergency lighting module and to provide a converted emergency operation current to the group of solid state emitters at an emergency input of the group of solid state emitters in response to the emergency operation current. The emergency lighting module may be a fluorescent emergency lighting module.

Abstract: A diagnostic tool for monitoring a component in a load electrical circuit is provided. The diagnostic tool includes a housing containing a relay, at least one electrical sensor, a computer readable memory and a processor. The relay is configured for selectively open and close the load electrical circuit according to a control electrical circuit. The at least one sensor is configured to measure current and/or voltage in the load electrical circuit and to generate signals corresponding to the electrical load drawn through the load electrical circuit. The processor is in electrical with the sensor or sensors and the computer readable memory for storing data in the computer readable memory corresponding to the signals generated by the sensor.

Abstract: An emergency lighting device includes a backup power supply for illuminating a light during a power loss. The lighting device includes a transmitter, which transmits a signal to a receiver during a power outage. When the receiver receives the signal, the source of power switches from the primary power source, e.g., AC utility power, to a backup power source, e.g., DC battery power. The lighting device may include an LED lamp in which AC-LEDs are selectively illuminated when primary power source is delivered and DC-LEDs which are selectively illuminated during a power outage.

Abstract: An LED light bulb which turns itself permanently off when it reaches the end of its useful life, and more particularly, to a scheme which slightly varies the end-of-life condition from unit to unit.

Abstract: An elevator interior illumination assembly comprising a primary LED driver that provides conditioned DC power to primary and backup LEDs when AC power is available from a primary electric power source. The backup LEDs receive DC power from a backup electric power source when AC power is not available to the primary LED driver from the primary electric power source.

Abstract: Apparatus networked system of intelligent devices including illuminated street signs. Street signs include: address, name, direction and message signs. Apparatus controller interfacing: sensors, street signs, operator, remote controllers. Interface includes: wireless network and INTERNET. Controller maintains status of a community, including: ambient environment, safety and status of routes within the community. Status provided by: sensors, authorized operator, remote controllers. Apparatus based on respective status executes control algorithm of street signs providing general illumination and visual information, improving safety within the community.

Abstract: A lighting network (100) and methods therefore are disclosed. The lighting network (100) a plurality of lighting units (10) that can operate on AC power and DC back up power if the AC power is removed. A controller (15) is used to redistribute the DC power between the plurality of lighting units (10) in the event that DC power is low or exhausted in one of the plurality of lighting units (10).

Abstract: Configurable LED light improving community safety and the environment by providing illumination as function of internal self-diagnostics and status of ambient environment, comprising: controller, sensors, LED's, interfaces, enclosure. Sensors include: ambient light, proximity, temperature, voltage, current. Interfaces include: wireless, INTERNET. LED's configurations include: single color, multicolor, flexible PCB. Enclosure configurations include: water-proof, recess, surface mounting, hidden magnets for latch-in mounting. Controller configurations define real-time control algorithm based on: sensor status; time based controls; apparatus operating acceptance criteria. Apparatus acceptance criteria include: operation within specifications; optimization of energy consumption; contribution to environmental safety. Control algorithm includes: real-time internal and external diagnostics; and controls sustaining operation within acceptance criteria. Apparatus configurations stored in non-volatile memory.

Abstract: A LED based illumination source with integrated communications and processing functions, which can communicate via wireless communications to a mobile phone, smart phone, smart pad, notebook, tablet, desktop or other computing device. The LED based illumination source is programmed to operate autonomously, and is able to alter its behavior, based on the proximity of a controlling element. The communications and processing functions can also be integrated into other household and commercial electrical devices, such as wall outlets, light switches, plug in timers, appliances, and the like.

Abstract: An autonomous emergency light unit for an aircraft has a power input for receiving power from an external power supply, a rechargeable power source, at least one LED for illuminating the emergency light unit, and a light unit control logic configured to operate the emergency light unit in a plurality of operating states as a response to external control information received and processed by the light unit control logic. The plurality of operating states includes a discharge and illumination state, with the rechargeable power source being discharged over the at least one LED in the discharge and illumination state. The light unit control logic is configured to operate the emergency light unit in the discharge and illumination state as a response to no power being provided at the power input.

Abstract: An apparatus, system, and method for solid state lighting is envisioned which, according to aspects of the invention, provides primary event and/or utility lighting during normal power conditions, and which, during periods of interrupted power, provides uninterrupted event lighting for a desired duration, provides a gradual transition from event lighting levels to utility lighting levels, and provides a gradual transition from utility lighting levels to emergency lighting levels.

Abstract: An emergency lighting device, having a lighting device housing and power source, includes an illumination circuit powered by the power source. The illumination circuit is configured to trigger a first illumination mode having a first non-zero lumen output responsive to a first condition and a second illumination mode having a second, different, non-zero lumen output responsive to a second condition. In a preferred embodiment, the first non-zero lumen output is lower than the second non-zero lumen output. One or more light sources are retained within the lighting device housing and configured to provide illumination outside of said housing responsive to the first or second illumination mode. Finally, a signal detector retained within the lighting device housing is operative to trigger the second condition responsive to detection of a signal which, in a preferred embodiment is an audible signal such as a fire or smoke alarm signal.

Abstract: An LED light includes a light body; an LED light board disposed in the light body and disposed thereon a plurality of LED dies; at least one battery coupling member, which is a detachable battery carrier, disposed at an outside edge of the light body for accommodating therein a battery device which is a replaceable element; and a power switch control circuit disposed in the light body and electrically coupled to an alternate current source, the at least one battery coupling member and the LED light board so that either of an alternate current received from the alternate current source and a direct current received from the battery device is transmitted to the LED light board. The replaceable battery device disposed at the outside edge of the light body and used as a backup power supply for emergency illumination is simple in structure and low in cost.

Abstract: A system, apparatus and method for light diffusion and testing fixtures. The system includes remote derangement controls to test the operation of a battery backup system associated with a fixture. The light fixture may incorporate light diffusion features including back mounted light sources, channeled corners in a translucent material and/or pitted surfaces of a translucent material. The system may further include remote monitoring elements and/or sensors to evaluate proper operation of the light diffusion characteristics of a fixture during operation of the battery backup system.

Abstract: A handheld device includes a backlight driving unit and a power supply circuit for powering the backlight driving unit. The power supply circuit includes a power management unit, a battery, a first electronic switch, a second electronic switch, and a control unit. When a voltage of a second terminal of the second electronic switch is less than a reference voltage of the control unit, the control unit turns on the first electronic switch and turns off the second electronic switch. The backlight driving unit is powered by the battery through the first electronic switch. When the voltage of the second terminal of the second electronic switch is more than the reference voltage of the control unit, the control unit turns off the first electronic switch and turns on the second electronic switch. The backlight driving unit is powered by the PMU through the second electronic switch.

Abstract: An apparatus, system, and method for solid state lighting is envisioned which, according to aspects of the invention, provides primary event and/or utility lighting during normal power conditions, and which, during periods of interrupted power, provides uninterrupted event lighting for a desired duration, provides a gradual transition from event lighting levels to utility lighting levels, and provides a gradual transition from utility lighting levels to emergency lighting levels.

Abstract: A system and method are provided for mimicking a bioluminescent signal from an animal or an insect, such as a firefly. A first version includes a controller, an electrical energy battery, a solar energy collector and a light emitting device. The solar energy collector receives sunlight and converts the sunlight to electrical energy that is stored in the battery. The electrical energy battery provides electrical energy to the light emitting device under management by the controller, and may comprise two or more battery cells or circuits. A time sequence for energizing the light emitting device may be applied to cause the light emitting device to mimic a bioluminescent lighting pattern generally exhibited by a selected species of insect or animal. A light emitting diode may be used with a voltage source and a voltmeter to detect the approximate intensity of light of an ambient environment surrounding the device.

Abstract: The present disclosure provides a variable energy lamp control circuit, including a power supply management circuit, an alternating current detection and high-frequency signal transmission circuit, a manual switch, a high-frequency signal receiving circuit, a delay circuit working power input control circuit, a work delay circuit, an alternating current sensing circuit, a control signal conversion circuit, and a driving circuit. The control signal conversion circuit is configured for controlling on and off of the variable energy lamp via the driving circuit according to a first control signal outputted from a first control signal output terminal of the alternating current detection and high-frequency signal transmission circuit, a second control signal outputted from an output terminal of the alternating current sensing circuit, and a third control signal outputted form a third control signal output terminal of the work delay circuit.

Abstract: The invention provides a plurality of individually addressable radio frequency (RF) modules, any of which can be installed with any electrical device such as an ambient condition sensor or an ambient condition modifier. A prime example would be a light fixture, whether with or without a dimmable light source efficient dimming and integrated smart sensor networking related to the lighting system itself or to other systems such as parking monitors, fire alarm monitors or security alarm monitors. Independent control processing in each lighting fixture or electrical device allows a multiplicity of sensors to be locally employed and their data to control local conditions or communicate to adjoining fixtures and electrical devices and thereby control larger portions of the lighting system network or network to several unrelated systems.

Abstract: A method for driving light adjustments, a device therefor and a light adjustable lamp including the device are disclosed. The device includes a light source driving circuit, an MCU and a temporary power supplying circuit. The MCU includes a current detecting module, an analyzing and processing module and a storage module. The analyzing and processing module obtains a connecting signal or a disconnecting signal of the light source driving circuit and thereafter extracts a stored firmware program of gradually varying brightness of a light source or stored information about a constant brightness state of the light source from the storage module for analyzing and processing, so as to generate a controlling signal of adjusting the brightness of the light source and send the controlling signal into the light source driving circuit. Then the light source driving circuit adjusts the brightness of the light source according to the controlling signal.

Abstract: In embodiments of the present invention improved capabilities are described for autonomous shifting of at least a portion of a lighting load off an energy distribution grid, comprising electrically connecting a lighting device to the energy distribution grid; causing the lighting device to interpret information obtained from an information source proximate the lighting device; and causing the lighting device to select from at least two different power sources based on the interpretation, where selecting may include a sharing of the load between the two different power sources, and where one power source may be the energy distribution grid.

Abstract: An integrated lamp with automatic emergency light and regular light is provided in the present invention. The integrated lamp with automatic emergency light and regular light is coupled to an AC power source, wherein the AC power source includes a first AC terminal and a second AC terminal. The integrated lamp is controlled by a lamp switch, where the lamp switch includes a first terminal and a second terminal, where an indication light circuit is coupled between the first terminal and the second terminal of the lamp switch. The integrated lamp includes an AC detector. The AC detector is coupled between the second terminal of the lamp switch and the second AC terminal. When the lamp switch is turned off, the AC detector determines whether the current state is a power failure state or a normal state according to the electrical current and/or voltage from the indication light circuit to the second AC terminal.

Abstract: The present application discloses a light emitting diode lighting device and a light emitting diode lamp, the light emitting diode lighting device includes: a fluorescent lamp ballast outputting an alternating current; and at least one first light emitting diode lamp coupled with the fluorescent lamp ballast, and comprising a rectifying and filtering circuit and at least one light emitting diode string coupled with the rectifying and filtering circuit. The present application directly replaces a conventional fluorescent lamp tube with a properly designed LED lamp without any other modifications when reinstallation a conventional fluorescent lamp lighting device into a light emitting diode lighting device, which may reduce the cost of reinstallation, and greatly facilitate the user.

Abstract: An emergency lighting system with central batteries power remote LED fixtures and exit signs, with all components integrated throughout a single or multiple buildings. Status reports are available on demand and the system will generate written records required by the Life Safety Code. A wide range of fixtures optimized for emergency lighting are available for interior and exterior applications and all can be monitored via internet, with report displays available on any digital device. Easy access to batteries, automated testing, high lumen outputs, efficient optics and long lamp life ensure the lowest possible life cycle costs.