Abstract: A light having integrated light and thermal guides and separable electrical connectors. The light has a base for connection to a power supply, a light circuit electrically connected with solid state light sources such as LEDs, and a driver circuit for receiving power from the power supply and providing power to drive the light sources. A light guide is coupled to the light sources for receiving and distributing light from the light sources, and a thermal guide is integrated with the light guide for providing thermal conduction from the light source for cooling the light. The separable connectors include a first connector for providing an electrical connection between the driver circuit and light circuit, a second connector for providing an electrical connection between the power supply and driver circuit, and a third connector for providing a ground connection to the driver circuit.

Abstract: A lighting control system includes a plurality of luminaires each having a selectively powerable first light source and a selectively powerable second light source. The luminaires are powerable and controllable by a common AC power source. A signal receiving controller of each of the luminaires is electrically connected to the first light source and the second light source and selectively causes power to be routed to either the first light source or the second light source dependent on a control signal sent via the AC power source.

Abstract: A light-emitting diode (LED) light module is provided, comprising: a single-piece printed circuit board (PCB) comprising the following integrated on the PCB: a plurality of LEDs in each of a plurality of LED groups; a power supply converter; a controller module comprising a processor, memory, operational program stored in the memory and executable by the processor; input/output (I/O) circuitry, and an LED driver that drives the LEDs; the module further comprising: a single metallic housing that contains the PCB; a heat sink that conducts heat from components on the PCB to the housing; and a lens for diffusing or directing lights from the LEDs.

Abstract: A lighting device includes a DC/DC power converter, a controller/processor electrically connected to the DC/DC power converter, a light emitting diode (LED) current control circuit communicably coupled to the controller/processor and electrically connected to the DC/DC power converter, and two or more LEDs comprising at least a first color LED and a second color LED electrically connected to the LED current control circuit. The LED current control circuit provides an on/off signal having a cycle time to each LED in response to one or more control signals received from the controller/processor such that the two or more LEDs produce a blended light having a specified color based on how long each LED is turned ON and/or OFF during the cycle time.

Abstract: A lighting device includes a DC/DC power converter, a controller/processor electrically connected to the DC/DC power converter, a light emitting diode (LED) current control circuit communicably coupled to the controller/processor and electrically connected to the DC/DC power converter, and two or more LEDs comprising at least a first color LED and a second color LED electrically connected to the LED current control circuit. The LED current control circuit provides an on/off signal having a cycle time to each LED in response to one or more control signals received from the controller/processor such that the two or more LEDs produce a blended light having a specified color based on how long each LED is turned ON and/or OFF during the cycle time.

Abstract: A system for lighting an interior of a building according to one example embodiment includes a curb positioned on an exterior of the building for receiving natural light. A light duct is positioned within the curb having a reflective inner surface for transferring the natural light. A light fixture is connected to an outlet of the light duct such that both natural light and artificial light are emitted from the light fixture to the building interior. A photo sensor is positioned in the building interior to sense an illumination level therein. A controller in communication with the photo sensor and the light fixture is programmed to adjust the amount of light emitted by a dimmable light source in the light fixture in response to fluctuation in the illumination level sensed in the building interior in order to maintain a desired illumination level.

Abstract: A lighting device includes a DC/DC power converter, a controller/processor electrically connected to the DC/DC power converter, a light emitting diode (LED) current control circuit communicably coupled to the controller/processor and electrically connected to the DC/DC power converter, and two or more LEDs comprising at least a first color LED and a second color LED electrically connected to the LED current control circuit. The LED current control circuit provides an on/off signal having a cycle time to each LED in response to one or more control signals received from the controller/processor such that the two or more LEDs produce a blended light having a specified color based on how long each LED is turned ON and/or OFF during the cycle time.

Abstract: A luminaire includes a primary HID light source housing having at least one selectively powerable HID lamp and an LED arm assembly having a secondary LED light source. In some embodiments the LED arm assembly may extend between a support structure and the HID light source housing and in other embodiments the LED arm assembly may be a stand alone assembly and extend from a support structure remote from the HID light source housing. The HID lamp may be powered during user selected peak hours and the LED light source may be powered during user selected non-peak hours.

Abstract: There is provided a LED lamp assembly (1300) comprising a heat sink (1301) having a cooling structure with an outer circumference part and a centre part (1311), which supports a plurality of LEDs, and the material thickness of the cooling structure increases inwards from the outer circumference part to the centre of the heat sink. The LED assembly may further comprise a lampshade supported by the outer circumference part of the heat sink. There is also provided a LED lamp assembly comprising a heat sink having a centre, an outer circumference part supporting a plurality of LEDs, and a cooling structure with a number of vent-holes allowing passage of air, the cooling structure supported by the outer circumference part and extending inwards towards the centre from the outer circumference part.

Abstract: Taught herein are various light sources using light emitting diodes. A light source includes a housing, a connector configured for connection to an electrical socket and coupled to an end of the housing, at least one organic light emitting diode sheet mounted inside the housing and in electrical communication with the connector, and a power supply circuit for supplying electrical current to the at least one organic light emitting diode through the connector.

Abstract: A light emitting diode (LED) illuminating apparatus including a heat sink, a light emitting module, a power connection portion, a translucent cover and a wiring path. The heat sink has a plurality of heat dissipation fins. The light emitting module is positioned on an upper portion of the heat sink. The power connection portion is positioned below a lower portion of the heat sink. The translucent cover is mounted to cover an upper portion of the light emitting module. The wiring path is formed in the heat sink so as to accommodate a wire for electrically connecting the power connection portion and the light emitting module. In the LED illuminating apparatus, the light emitting module emits light by directly receiving AC power supplied through the wire accommodated in the wiring path.

Abstract: A thermal compensating circuit board (TCB) assembly comprising a substrate, the substrate comprising at least one thermal compensating circuit deposited thereon, the substrate devoid of a solid state emitter, and at least one electrical connector coupled to the at least one thermal compensating circuit, the connector configured to couple with a solid state emitter assembly and/or power supply. Lighting devices comprising the TCB assembly are provided.

Abstract: A light source may comprise a housing, a window mounted in a front plane of the housing, a window length spanning a front plane length, and a linear array of light-emitting elements within the housing. The linear array may be aligned with and emit light through the window, and the linear array may span the window length, wherein first and last light-emitting elements of the linear array are positioned adjacent to widthwise edges of the window, and wherein window sidewalls at the widthwise edges are aligned flush with housing sidewalls.

Abstract: Example embodiments of the present invention provide a LED light source with an effective and efficient heat management system. For example, embodiments of the present invention include devices, systems, materials, and methods to effectively transfer heat away from LEDs used in an LED light source to produce an LED light source that has high lumen output compared to conventional LED light sources. In particular, example embodiments of the present invention provide an LED light source that includes a transparent or translucent heat conductive material in which the LEDs are embedded.

Abstract: Representative embodiments of the invention provide a system, apparatus, and method of controlling an intensity and spectrum of light emitted from a solid state lighting system. The solid state lighting system has a first emitted spectrum at a full intensity level and at a selected temperature, with a first electrical biasing for the solid state lighting system producing a first wavelength shift, and a second electrical biasing for the solid state lighting system producing a second, opposing wavelength shift. Representative embodiments provide for receiving information designating a selected intensity level or a selected temperature; and providing a combined first electrical biasing and second electrical biasing to the solid state lighting system to generate emitted light having the selected intensity level and having a second emitted spectrum within a predetermined variance of the first emitted spectrum over a predetermined range of temperatures.

Abstract: A tunable light-emitting diode (LED) lamp for producing an adjustable light output. In one embodiment, the LED lamp includes a drive circuit for driving LED dies in one of a plurality of light output configurations (e.g., a pre-sleep configuration, a phase-shift configuration, and a general lighting configuration). Further, the LED lamp may include an output-select controller and/or input sensor electrically coupled to the drive circuit to select the light output configuration. As such, the LED lamp is tunable to generate different levels of spectral output, appropriate for varying biological circumstance, while maintaining a commercially acceptable light quality and color rendering index.

Abstract: A light-emitting diode arrangement includes a piezoelectric transformer having at least one output connection position, and a high-voltage light-emitting diode including a high-voltage light-emitting diode chip including at least two active regions connected in series with one another, wherein the high-voltage light-emitting diode is electrically connected to the output connection position of the piezo transformer.

Abstract: The present invention is directed to a power control device. The device includes an interchangeable user interface assembly includes a frame member having a plurality of connector elements configured to mate with a plurality of frame connection apertures. The frame member is removable from the device heat sink without any tools. The interchangeable user interface assembly includes an interface paddle rotatably coupled to the frame member and detached relative to the device's rocker switch such that the interface paddle slidably moves relative to the rocker switch with at least one degree of freedom during a rotational movement, the user interface assembly further including an interface dimmer movably disposed within the frame member and coupled to the device's dimmer actuator.

Abstract: A method of lighting especially suited for use in motion picture and video production including, in various embodiments, the steps: providing lighting modules, each having one or more manual controls for controlling light output characteristics such as the intensity and hue of light produced and each capable of wirelessly communicating with other lighting modules over a wireless data network; interconnecting the lighting modules on the wireless data network; and adjusting the light produced by all lighting modules through adjustments using any one of the networked lighting modules.

Abstract: A substrate is attached to one edge side of a radiator and a globe is attached covering the substrate. Heat-radiating fins are provided on the other edge side of the radiator and an air-cooling unit is rotatably provided inside the heat-radiating fins which enables to freely rotate. A case storing a circuit part is attached to the other edge side of the radiator and a cap is provided to the case. By the wind blast from the air-cooling unit, the heat-radiating fins are caused to be a part of the ventilation path to allow for ventilation of the inside of the radiator.

Abstract: A lamp assembly is provided. The lamp assembly has a housing that functions as a heat sink for the dissipation of heat therefrom. A plurality of light emitting diodes are also present and are configured to be driven by a current regulated by a linear current regulator and a switch mode current regulator. Thus, the amount of heat generated through driving the plurality of light emitting diodes is decreased such that the housing is optimally sized and still function as a heat sink.

Abstract: A portable lighting system including a housing having an elongated slot formed in a surface of the housing. The slot being sized to receive a rod therein via an opening in the slot. The system further including a retention member movable between a closed position and an opened position, wherein the closed position provides at least a portion of the retention member blocking at least a portion of the upper opening of the slot and the opened position includes the retention member not blocking the upper opening of the slot. The system also having a light source including a plurality of lights oriented in different directions.

Abstract: A semiconductor lamp may include at least one semiconductor light source and a driver for feeding the at least one semiconductor light source, wherein the driver is inductively coupled to the at least one semiconductor light source at least for the feeding.

Abstract: A liquid-cooled light emitting diode (LED) bulb which includes a base, a shell connected to the base forming an enclosed volume, and a plurality of LEDs attached to the base and disposed within the shell. The LED bulb also includes a volume of thermally-conductive liquid held within the enclosed volume. A scavenger element comprising a scavenger material is attached to the base and is exposed to the thermally-conductive liquid. The scavenger material is configured to capture contaminants in the thermally-conductive liquid.

Abstract: A control apparatus for at least one circuit arrangement for operating fluorescent lamps and LEDs. Switching can occur between operation of the fluorescent lamps and LEDs via a control input.

Abstract: A light-emitting diode lamp is provided. The light-emitting diode lamp includes a light-emitting diode package that includes a light-emitting diode and a circuit substrate on which the light-emitting diode is mounted; a power supply unit that supplies power to the light-emitting diode; a heat radiation member that includes a mounting unit on which the light-emitting diode package is mounted and a cylindrical unit extending from the mounting unit and surrounding the power supply unit to discharge heat generated by the light-emitting diode package; and a heat radiation plastic that surrounds an outer surface of the cylindrical unit.

Abstract: Provided is a LED lighting system, including a lighting device driver having a power converter for converting an input voltage into a first DC voltage and outputting a first current having a substantially constant current value; and a LED lighting device assembly connected to the lighting device driver through two contacts. The LED lighting device assembly includes a plurality of light-emitting diode lighting devices having a plurality of lighting device connection bases and a plurality of LED units. The lighting device connection bases are connected in series with each other to allow the LED lighting devices to be connected in series with each other, and the lamp voltage is applied across the positive terminal and the negative terminal of the lighting device connection base and is generated by dividing the first DC voltage, thereby allowing the lamp currents outputted by the lighting device connection bases are substantially equal.

Abstract: The invention relates to a system for operating an LED-based light source which system comprises an operating device that is designed to transform the input-side mains voltage to a supply voltage, and a control unit for the light source, which control unit is connected to the operating device and operates the LEDs using the supply voltage obtained from the operating device. The control unit is arranged in a module which is designed as a unit separate from the light source and which is connected thereto by means of a preferably flexible cable.

Abstract: An LED lamp includes LED chips, a translucent cover housing the LED chips, a motion sensor unit, a condensing lens, and a power unit. The motion sensor unit includes a light receiving element for light of a predetermined wavelength. The lens condenses light of the predetermined wavelength onto the light receiving element. The power unit controls the state of operation of the LED chips based on an output from the motion sensor unit. The motion sensor unit includes a light shielding member disposed to overlap the light receiving element in an optical axis direction of the condensing lens and also to surround the light receiving element as viewed in the optical axis direction. The light shielding member is made of a material having a lower light transmissivity than that of the condensing lens for a range of wavelengths including the predetermined wavelength.

Abstract: An LED lighting apparatus including an LED chip having at least one LED, a light reflector configured to direct light emitted by the LED at a predetermined direction and dispersion angle, a heat sink including a mounting base and cooling fins extending from a first side of the mounting base and with the LED chip secured to an opposite second side of the mounting base, a cooling fan attached to the heat sink adjacent distal ends of the plurality of fins, an electrical regulator electrically connected to the cooling fan to provide regulated power to the cooling fan, an LED driver electrically connected to the LED chip, and a thermal limit switch mounted to the heat sink and configured to cut off power to the LED chip if a sensed temperature of the heat sink exceeds a temperature set point to thereby provide thermal protection to the LED chip.

Abstract: A method for dynamically controlling heat dissipation of an AC LED driving circuit has steps of connecting multiple voltage-controlled transistors and a current detection unit in series to a power loop having an LED unit, connecting a resistive element between each adjacent two of the voltage-controlled transistors to constitute multiple stages of power distribution units, detecting a voltage and a current of the power loop and calculating a consumed power value, and switching to one of the stages of power distribution units with a power range in which the current power value falls. As the higher stage of power distribution unit has more resistive elements for current to flow therethrough, it can share the power of the single-chip voltage-controlled transistor when the LED unit having higher power is used, thereby avoiding overheated condition and malfunction of the voltage-controlled transistor.

Abstract: An LED-based light can include a highly thermally conductive base having multiple radially outward projecting nodes. The nodes can be spaced apart in an axial and circumferential directions of the base. The base can include recessed channels between the nodes to enable airflow in multiple directions about the base. An electrical connector and at least one LED can be attached to the base, and a light transmitting bulb can be attached to the base and can cover the at least one LED. The geometry of the base can promote heat dissipation, which can allow the at least one LED to use enough power to produce an amount of luminosity that allows the LED-based light to replicate, for example, an incandescent light without overheating.

Abstract: Disclosed is a display device which includes a display panel, an LED bar configured to output a light to the display panel, and a source printed circuit board including a driver circuit driving the display panel and an LED driver circuit driving the LED bar, wherein the LED bar and the LED driver circuit are connected via a socket disposed at the source printed circuit board.

Abstract: An illumination device includes a light source in which a plurality of light emitting elements are arranged, a luminous intensity controller configured to control luminous intensities of the plurality of light emitting elements separately in groups of one or more light emitting elements, and a predetermined correction table indicating temperature distribution characteristics corresponding to position information of the plurality of light emitting elements in the light source. The luminous intensity controller controls the luminous intensities of the plurality of light emitting elements corresponding to the position information based on the temperature distribution characteristics of the correction table.

Abstract: A metal line 731 is formed in a linear area S of an insulative substrate 720, and moreover a metal line 732 is formed generally parallel to the metal line 731 with a specified distance thereto. The metal line 731 is connected to an n-type semiconductor core 701 of bar-like structure light-emitting elements 710A to 710D, and the metal line 732 is connected to a p-type semiconductor layer 702. By dividing the insulative substrate 720 into a plurality of divisional substrates, a plurality of light-emitting devices in each of which a plurality of bar-like structure light-emitting elements 710 are placed on the divisional substrates are formed.

Abstract: An apparatus and method of a lamp including an optically transmitting, thermally conductive substrate is provided. The substrate has a first side, a second side, and at least one edge. At least one solid state light source, such as but not limited to a light emitting diode, is disposed on the first side of the substrate. The at least one solid state light source (e.g., light emitting diode) includes at least one junction having a first junction temperature. The substrate used is an optically transmitting, thermally conductive substrate, with a thermal conductivity greater than or equal to about 3 W/mK.

Abstract: A solid state lighting apparatus can include a substrate having first and second opposing surfaces, where at least one of the opposing surfaces is configured to mount devices thereon. A string of chip-on-board light emitting diode (LED) sets, can be on the first surface of the substrate and coupled in series with one another. An ac voltage source input, from outside the solid state lighting apparatus, can be coupled to the first or second surface of the substrate.

Abstract: An LED driving circuit package includes a rectification unit to receive an AC power voltage and rectify the AC power voltage to generate a ripple voltage, an LED driving switching unit including a plurality of switch units and a plurality of current control units. The LED driving circuit package further includes a low voltage control unit including a circuit power supply unit to generate low voltage power, a voltage detection unit to detect a magnitude of the ripple voltage, a reference frequency generation unit to generate a reference frequency, and a reference pulse generation unit to generate a reference pulse for controlling the operation of the LED driving switch unit according to the reference frequency and a magnitude of the voltage detected by the voltage detection unit.

Abstract: In various embodiments, a semiconductor lamp may include a driver cavity for accommodating driver electronics, and a light source substrate populated with at least one semiconductor light source, said driver cavity being closed by the light source substrate.

Abstract: A high power lighting fixture which includes a first multiple of first light emitting diodes (LEDs) mounted and series connected to form a first serial string of LEDs on a first circuit board. A second multiple of second light emitting diodes (LEDs) mounted and series connected to form a second serial string of LEDs on a second circuit board. Mating circuit board connectors are mounted on the first and second circuit boards. The first and second LEDs, the number of first and second LEDs and the current supplied when operating the first and second LEDs are selected so that the lighting fixture is operable at a minimum electrical power rating of 100 Watts. A control signal is received which determines current division between the first and second LEDs.

Abstract: An LED lighting system is provided for connection to a variable power source providing input power, the LED lighting system having at least one power analyzing and processing circuitry connecting to the variable power source, and being configured to identify one or more characteristics of the input power, where the characteristics are selected from amplitude, frequency and pulse width of the input power, compare one or more of the characteristics of the input power to preset control criteria either in hardware or software or both to yield a comparison result, and then control the current control circuitry according to the comparison result.

Abstract: The present invention relates to a high-power LED lamp. The lamp includes an LED module, an inner heat sink disposing air passages along an axial direction thereof, a heat pipe assembly including multiple U-shaped heat pipes, and an outer heat sink. Middle sections of the heat pipes form a smooth surface on which the LED module is attached. Straight sections of the heat pipes are coiled around the inner heat sink. The smooth surface is located at an end of the inner heat sink not to block the air passages of the inner heat sink. An annular vapor chamber is packaged a grid-shaped configuration of the heat pipes and attached to each heat pipe. The invention achieves fast heat conduction and dissipates the heat via the inner and outer heat sinks.

Abstract: The present invention relates to a high-power LED lamp. The lamp includes an LED module, an inner heat sink disposing air passages along an axial direction thereof, a heat pipe assembly including multiple U-shaped heat pipes, and an outer heat sink. Middle sections of the heat pipes form a smooth surface on which the LED module is attached. Straight sections of the heat pipes are coiled around the inner heat sink. The smooth surface is located at an end of the inner heat sink not to block the air passages of the inner heat sink. An annular vapor chamber is packaged a grid-shaped configuration of the heat pipes and attached to each heat pipe. The invention achieves fast heat conduction and dissipates the heat via the inner and outer heat sinks.

Abstract: An illumination system has a lighting module, a microcontroller electrically connected to the lighting module and arranged to control the lighting module, and a transistor electrically connected to the lighting module and the microcontroller arranged to allow the microcontroller to monitor a voltage of one of either the transistor or lighting module. A method of controlling a lighting module including powering on the lighting module, providing a current to the lighting module, wherein the current is determined by a global intensity setting for the lighting module, monitoring a voltage provided to the lighting module, and shutting the lighting module down if the voltage reaches a pre-determined level.

Abstract: An embodiment discloses a lighting device, comprising a lamp holder, a lamp panel, a lamp base, wherein the lamp panel includes a light source and located in the lamp holder, the lamp holder is connected to the lamp base, a physical displacement control module, and a power supply driver module placed in the lamp base, wherein the physical displacement control module is connected to the power supply driver module, adapted to control the power supply driver module to change an output signal to the lamp panel according to detected physical displacement, and the power supply driver module affords power supply to the physical displacement control module.

Abstract: A lighting device includes multiple solid state emitter (e.g., LED) chips of different colors mounted on a single submount, at least one temperature sensing element arranged to sense temperature of the LED chips, and at least one temperature compensation circuit element mounted on the single submount to maintain output emissions at a substantially constant color point over a range of different temperatures. Such a device may include a blue LED arranged to stimulate a yellow lumiphor and a red LED, arranged in combination to yield warm white light. Multiple separately temperature compensated clusters of solid state emitters may be provided in a single lighting device, which may include an elongated body structure.

Abstract: Light Emitting Diodes (LEDs) are increasingly used in illumination applications. To control multiple Light Emitting Diodes (LEDs), or any other controllable light source, this document introduces a single-wire multiple-LED power and control system. Specifically, individually controlled LED units are arranged in a series configuration that is driven by a control unit located at the head of the series. Each of the individually controlled LED units may comprise more than one LED that is also individually controllable. The head-end control unit provides both electrical power and control signals down a single wire to drive all of the LED units in the series in a manner that allows each LED unit to be controlled individually or in assigned groups.

Abstract: According to various embodiments of the invention, an LED lighting system is providing having a replaceable driver module. In some embodiments, the replaceable driver module comprises a component that is physically attachable to an LED illumination module, whereby the attached components have a combined physical profile dimensioned for installation in a pre-existing light fixture. In further embodiments, the combined system's dimensions allow it to be installed in pre-existing fluorescent fixtures without requiring rewiring of the fixtures. In some embodiments, the LED driver module may be configured to condition power received from a fluorescent light ballast to drive the LEDs such that a pre-existing fluorescent ballast does not need to be removed. In other embodiments, the LED driver may be configured to condition main power such that a pre-existing fluorescent ballast may be removed.

Abstract: Representative embodiments of the disclosure provide a system, apparatus, and method of controlling an intensity and spectrum of light emitted from a solid state lighting system. The solid state lighting system has a first emitted spectrum at full intensity and at a selected temperature, with a first electrical biasing for the solid state lighting system producing a first wavelength shift, and a second electrical biasing for the solid state lighting system producing a second, opposing wavelength shift. Representative embodiments provide for receiving information designating a selected intensity level or a selected temperature and providing a combined first electrical biasing and second electrical biasing to the solid state lighting system to generate emitted light having the selected intensity level and having a second emitted spectrum within a predetermined variance of the first emitted spectrum over a predetermined range of temperatures.

Abstract: A lighting device includes a lighting engine and at least a wavelength-converting element. The lighting engine includes a circuit board, a blue light emitting diode and a red light emitting diode. The blue light emitting diode and a red light emitting diode are disposed on the circuit board. The wavelength-converting element covers at least the blue light emitting diode. A wavelength-converted light is generated by converting a part of light emitted by the lighting engine through the wavelength-converting element. White light having a color temperature within a range from 2580K to 3220K on the black-body radiation of the CIE-1931 chromaticity diagram is generated by mixing the wavelength-converted light and non-converted light emitted by the lighting engine.