The present disclosure is directed to examples of an apparatus. In one embodiment, the apparatus includes a total internal reflection (TIR) lens and a structure coupled to the TIR lens. The structure includes a plurality of support members located around the TIR lens, a top surface, wherein the TIR lens is coupled to the top surface, and an edge to couple the top surface to the plurality of support members, wherein the edge is to redirect light in a direction that is perpendicular to a horizontal plane of the top surface.
The present disclosure is directed to examples of a light fixture. In one embodiment, the light fixture includes a light source to emit a light, a photo detector to detect an incoming light, a transceiver to receive incoming data and transmit data, a modulator/demodulator to modulate the light with the data and to demodulate the incoming light with the incoming data, and a processor communicatively coupled to the light source, the photo detector, the transceiver, and the modulator/demodulator, wherein the processor is to control the modulator/demodulator to modulate the light at a transmission frequency to transmit the data via the light.
The present disclosure is directed to examples of a light emitting diode (LED) assembly. In one embodiment, the LED assembly includes a substrate, at least one LED coupled to the substrate, and a power converter module formed on the substrate, wherein the power converter module is to power the at least one LED.
The present disclosure is directed to examples of a lighting data network. In one embodiment, the lighting data network includes a first luminaire, comprising a first wireless communication interface to receive data from a machine and a second luminaire, comprising a second wireless communication interface to receive the data from the first luminaire and a third communication interface to transmit the data to a third party control system.
The present disclosure is directed to examples of a warning beacon light. In one embodiment, the warning beacon light includes at least one light redirection component, a plurality of light emitting diodes (LEDs) positioned relative to the light redirection component such that light emitted from the plurality of LEDs is collimated to within a predefined range relative to a light emitting axis, and a wireless power transfer system coupled to the plurality of LEDs to provide power to the plurality of LEDs.
The present disclosure is directed to a light fixture mount. The light fixture mount includes a first end to receive a light fixture, a cap coupled to the light fixture that is coupled to the first end to form a first seal, and a second end to receive a collar that is coupled to a mounting member, wherein the collar comprises a sealed wire pass-through and a second seal is formed between the second end and the collar.
The present disclosure is directed to an apparatus. The apparatus includes a light diffusion portion comprising a same shape and approximately a same two dimensional size as a bottom surface of a light source, a light redirection device coupled to a perimeter of the light diffusion portion, wherein the light redirection device redirects a first portion of light emitted from a light source in a direction opposite a second portion of light emitted from the light source that travels through the light diffusion portion, and at least one mechanical coupling member coupled to the light redirection device, wherein the at least one mechanical coupling member is to connect to a corresponding portion of the light source.
F21V 17/04 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages onto or by the light source
The present disclosure is directed to examples of a through wall light fixture. In one embodiment, the through wall light fixture includes a collimated light source, an optic wave guide, wherein the collimated light source is coupled to a first end of the optic wave guide to be located closer to an interior side of a wall, and a light distribution element coupled to a second end of the optic wave guide to be located closer to an exterior side of the wall.
G02B 6/10 - Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
A lighting network control server and method for translating non-light related data packets into a protocol that is compatible with a third party automation server are disclosed. For example, the lighting network control server includes a communication interface to receive data packets from a lighting network and to communicate with a third party automation server, a non-transitory computer readable medium to store sub-routines and instructions to execute a protocol adapter, and a processor communicatively coupled to the communication interface and the non-transitory computer readable medium to execute the protocol adapter to translate the data packets into a protocol that is compatible with the third party automation server and transmit the data packets that are translated to the third party automation server via the communication interface.
The present disclosure is directed to a method, non-transitory computer readable medium and apparatus for remotely receiving information from and configuring a battery-backed emergency lighting system. In one embodiment, the method includes establishing a wireless communication session with a web server via a wireless fidelity (WiFi) connection, receiving a request for information related to the battery-backed emergency lighting system and a request to change a configuration of the battery-backed emergency lighting system over the wireless communication session, configuring the battery-backed emergency lighting system in accordance with the request to change the configuration and sending the information that is requested.
H02J 9/02 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which an auxiliary distribution system and its associated lamps are brought into service
The present disclosure is directed to a light emitting diode (LED) light module. In one embodiment, the LED light module includes a plurality of light sections and a plurality of open sections formed by a plurality of heat sink fins between the plurality of light sections, wherein each one of the plurality of light sections is adjacent to two different light sections of the plurality of light sections.
F21V 29/74 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
F21V 29/76 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
F21V 29/77 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
F21K 9/00 - Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
F21V 23/00 - Arrangement of electric circuit elements in or on lighting devices
The present disclosure is directed to a method for detecting a failure in a signal light. In one embodiment, the method includes monitoring operation of one or more light emitting diodes (LEDs) of the signal light coupled to a constant current driver, detecting a short circuit in at least one of the one or more LEDs and signaling a failure in the signal light when the short circuit is detected.
G01R 31/27 - Testing of devices without physical removal from the circuit of which they form part, e.g. compensating for effects due to surrounding elements
A light signal circuit comprising: an AC to direct current (AC-DC) converter for coupling to an AC power supply; a controller in communication with the AC-DC converter; one or more LEDs coupled to the AC-DC converter; an under-current and under voltage sensing circuit coupled to the one or more LEDs; and a failed state impedance circuit coupled to the under current and under voltage sensing circuit and the control circuit.
The present disclosure is directed to an input impedance control circuit. In one embodiment, the automatic input impedance control circuit includes a circuit controller that comprises a module for calculating an impedance and a control logic module, wherein the control logic module provides a current enable signal and a current control output signal, a driver in communication with the circuit controller for receiving the current enable signal and the current control output signal, an input voltage sensing circuit in communication with the module for calculating the impedance and the control logic module and an input current sensing circuit in communication with the module for calculating the impedance.
The present disclosure is directed to an obstruction lighting system for an elevated structure. In one embodiment, the obstruction lighting system for the elevated structure includes two obstruction light beacons that provide at a light output, wherein each one of the two obstruction light beacons comprises a plurality of light emitting diodes (LEDs) and at least one optic, wherein each one of the two light beacons provides at least a 180 degree light output in a horizontal direction for being operated together to provide a combined 360 degree light output in a horizontal direction.
The present disclosure is directed to a photo controller. In one embodiment, the photo controller includes a central processing unit (CPU), a local area connection (LAN) interface in communication with the CPU, a wide area network (WAN) interface in communication with the CPU and an electrical power control component in communication with the CPU to control a lighting device.
The present disclosure is directed to a method, computer-readable medium and apparatus for monitoring a plurality of light emitting diode (LED) light banks for each one of a plurality of LED beacon lights. In one embodiment, the method includes determining an amount of ambient light, selecting an operating mode for each one of the plurality of LED beacon lights based upon the amount of ambient light, determining a value of a threshold for the operating mode that is selected, receiving a light output value of each one of the plurality of LED beacon lights, comparing the light output value of each one of the plurality of LED beacon lights to the predetermined value of the dynamic threshold and generating an alarm when the light output value of any one of the plurality of LED beacon lights falls below the predetermined value of the dynamic threshold.
H05B 45/50 - Circuit arrangements for operating light-emitting diodes [LED] responsive to LED life; Protective circuits
H05B 45/10 - Controlling the intensity of the light
H05B 47/11 - Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
G01R 31/27 - Testing of devices without physical removal from the circuit of which they form part, e.g. compensating for effects due to surrounding elements
The present disclosure is directed to a light emitting diode (LED) lighting system. In one embodiment, the LED lighting system includes an LED light source deployed in a first location and a power supply for powering the LED light source, wherein the power supply is remotely located from the LED light source in a second location and designed to power the LED light source to minimize a power loss along a length of an electrical connection coupled between the LED light source and the power supply.
The present disclosure is directed to a method for potting an electrical module. In one embodiment, the method includes placing the electrical component in a potting mold, wherein the potting mold comprises an interior topology that matches a topology of one or more components of the electrical module, filling the potting mold with a potting compound and curing the potting compound over the electrical module.
The present disclosure is directed to an alternating current (AC) to AC converter circuit for independently adjusting a current and voltage to adjust a light output of a light operating on AC power. In one embodiment, the AC to AC converter circuit includes a microprocessor, a first switch coupled to the microprocessor, a power factor controller (PFC) module coupled to the first switch, wherein the first switch is controlled by the microprocessor in accordance with a desired power output, one or more boost switches coupled to the PFC module, wherein the one or more boost switches are controlled by the PFC module as a function of an operation of the first switch and one or more load switches coupled to the one or more boost switches, wherein the one or more load switches are controlled by the microprocessor in accordance with the desired power output.
The present disclosure is directed to a light emitting diode (LED) signal light. In one embodiment, the LED signal light includes at least one visible LED, at least one infrared (IR) LED, a reflector, wherein the reflector collimates a light emitted from the at least one visible LED and a light emitted from the at least one IR LED and a power supply powering the at least one visible LED and the at least one IR LED.
F21S 8/00 - Lighting devices intended for fixed installation
F21V 23/00 - Arrangement of electric circuit elements in or on lighting devices
G08B 5/36 - Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electromagnetic transmission using visible light sources
22.
LIGHT EMITTING DIODE LUMINAIRE FOR CONNECTION IN SERIES
The present disclosure relates generally to a light emitting diode (LED) luminaire. In one embodiment, the LED luminaire includes a base, a heat sink coupled to the base, a power supply coupled to an interior volume of the heat sink, one or more LEDs coupled to the power supply, wherein the one or more LEDs are coupled to a circuit configured to provide a constant input impedance and a lens coupled to the heat sink and enclosing the one or more LEDs.
A lighting system, comprising: a plurality of light emitting diode (LED) luminaires, wherein the plurality of LED luminaires is electrically connected in series, wherein each one of the plurality of LED luminaires comprises a circuit configured to provide a constant input impedance.
The present disclosure relates generally to a light emitting diode (LED) luminaire. In one embodiment, the LED luminaire includes a linearly extended enclosure having an interior volume, one or more sides and a light exiting portion along a length of the linearly extended enclosure, wherein the one or more sides each comprise an inside surface and an outside surface, wherein at least a portion of the linearly extended enclosure comprises an extruded optically clear plastic, one or more first LEDs mounted on the inside surface of the one or more sides of the linearly extended enclosure and a reflector coupled to the interior volume of the linearly extended enclosure, wherein the reflector redirects light from the one or more first LEDs.
F21V 15/01 - Housings, e.g. material or assembling of housing parts
F21V 17/16 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts of the lighting device; Snap action mounting
The present disclosure is directed to an automotive headlight. In one embodiment, the automotive headlight includes one or more first light emitting diodes (LEDs) and one or more second LEDs, wherein the one or more second LEDs are positioned at about 180 degrees with respect to the one or more first LEDs, wherein the headlight optical axis is about -90 degrees with respect to a LED optical axis of the one or more first LEDs. First and second reflectors are provided to direct the light from first and second LEDs.
F21S 41/36 - Combinations of two or more separate reflectors
B60Q 1/04 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
B60Q 1/16 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights illuminating the way asymmetrically
26.
HIGH INTENSITY WARNING LIGHT WITH REFLECTOR AND LIGHT-EMITTING DIODES
A high intensity light for warning aircraft of obstructions, comprising: a first high intensity light module comprising a first plurality of light emitting diodes (LEDs); and a second high intensity light module comprising a second plurality of LEDs, wherein the second high intensity light module is stacked on top of the first high intensity light module, wherein a first optical axis of the first high intensity light module and a second optical axis of the second high intensity light module are angled to provide light emission at angles greater -90 degrees to +90 degrees in a horizontal axis, wherein the first high intensity light module and the second high intensity light module are parallel.
The present invention is directed to a high intensity light module for warning aircraft of obstructions. In one embodiment, the high intensity light module for warning aircraft of obstructions includes a first plate, at least one reflector coupled to the first plate along a length of the first plate, a plurality of light emitting diodes (LEDs) coupled to the first plate, wherein the at least one reflector redirects light emitted by the plurality of LEDs substantially along a single side of the high intensity light module, a lens coupled around a perimeter of the first plate and a second plate coupled to the lens around a perimeter of the second plate and coupled to the first plate via one or more standoffs.
The present invention is directed to a method for remotely collecting metering information via a light emitting diode (LED) based street light. In one embodiment, the method includes collecting information from a utility meter coupled to a home, establishing a two-way communication path via a communication module to a central office, wherein the communication module is coupled to the LED based street light and sending the information from the utility meter to the central office via the two-way communication path.
F21K 9/00 - Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
F21S 8/08 - Lighting devices intended for fixed installation with a standard
G01R 31/27 - Testing of devices without physical removal from the circuit of which they form part, e.g. compensating for effects due to surrounding elements
The present disclosure relates generally to a light emitting diode (LED) luminaire. In one embodiment, the LED luminaire includes an enclosure having an interior volume and a flat side along a length of the enclosure, wherein the flat side comprises an inside surface and an outside surface, wherein the enclosure comprises an extruded optically clear plastic and one or more LEDs coupled to one or more circuit boards, wherein the one or more circuit boards are mounted on the inside surface of the flat side of the enclosure.
The present disclosure relates generally to an integrated signal light head. In one embodiment, the integrated signal light head includes a molded housing for holding at least one light emitting diode (LED) light source and a power supply compartment coupled to the molded housing. As a result, a power supply may be remotely located and independent of the at least one LED light source.
The present invention is directed to a beacon light with a light emitting diode (LED) optic. In one embodiment, the LED optic includes at least one LED comprising an LED plane, a first reflector positioned above the LED plane and comprising a curved cross-section, wherein the at least one LED is positioned approximately 90 degrees with respect to an optical axis of the first reflector and at least one second reflector positioned above the LED plane.
An LED (light emitting diode) illumination device that can generate a uniform light output illumination pattern. The illumination device includes an array of LEDs, each having a LED central axis. The LED central axis of the array of LEDs is angled approximately toward a central point. The illumination source includes a reflector with a conic or conic-like shape. The reflector wraps around the front of the LED to redirect the light emitted along a LED central axis. A housing of the LED illumination device can include a plurality of heatsink fins at a periphery, and a band can be formed within or outside of the heatsink fins.
F21S 8/00 - Lighting devices intended for fixed installation
F21V 29/74 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
F21K 9/00 - Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
F21V 17/10 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
33.
LED ILLUMINATION DEVICE WITH A HIGHLY UNIFORM ILLUMINATION PATTERN
An LED (light emitting diode) illumination device that can generate a uniform light output illumination pattern. The illumination device includes an array of LEDs, each having a LED central axis. The LED central axis of the array of LEDs is angled approximately toward a central point. The illumination source includes a reflector with a conic or conic-like shape. The reflector wraps around the front of the LED to redirect the light emitted along a LED central axis.
A light emitting diode (LED) light unit is disclosed. For example, the LED light unit includes at least one support plate having one or more inner openings. At least one LED array may be coupled to an LED board. The LED light unit also includes at least one heat pipe coupled to the LED board, wherein said LED board is coupled to the at least one support plate.
H05B 45/56 - Circuit arrangements for operating light-emitting diodes [LED] responsive to LED life; Protective circuits involving measures to prevent abnormal temperature of the LEDs
B60Q 1/04 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
The present invention is directed to a multi-zoned lighting apparatus. In one embodiment, the multi-zoned lighting apparatus includes at least one circuit board, at least one control circuit coupled to the at least one circuit board and a plurality of light emitting diode (LED) groups coupled to the at least one control circuit, wherein each LED group of the plurality of LED groups is independently controlled and in communication with a respective external sensor that controls a respective one of the plurality of LED groups when triggered.
36.
REMOTE MONITORING AND CONTROL OF LED BASED STREET LIGHTS
The present invention is directed to a method for remotely monitoring and controlling a light emitting diode. In one embodiment, the method includes establishing a two-way communication path via a communication module to a central office, wherein said communication module is coupled to said LED based street light and sending information related to the LED based street light to the central office via the two-way communication path.
The present invention relates generally to a light transmitting device and a total internal reflection lens with base. In one embodiment, the total internal reflection lens includes a light output portion and a first base coupled to the light output portion. The first base includes a cavity for receiving a light emitting diode (LED) and an undercut adjacent to the cavity.
F21V 5/04 - Refractors for light sources of lens shape
F21K 9/69 - Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction - Details of refractors forming part of the light source
H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
The present invention is directed to a surface mount circuit board indicator. In one embodiment the surface mount circuit board indicator includes a printed circuit board (PCB) having at least one light emitting diode (LED) die, one or more traces and at least one lens, a housing compris-ing at least one opening on a side along a perimeter of the housing, wherein the PCB is coupled to the housing such that a light output surface of the at least one LED die faces a same direction as the at least one opening and at least one alignment pin coupled to the housing.
An improved signal light and method for making an improved signal light is disclosed. For example, the improved signal light includes a housing, at least one outer lens and at least one or more second type of light emitting diodes (LEDs) deployed in the housing. The at least one or more second type of LEDs includes a pump, a phosphor and a filter having a cutoff point less than or equal to 540 nanometers (nm). The at least one or more second type of LEDs also has a pump peak wavelength less than or equal to 430 nm and has a phosphor with a peak wavelength greater than 575 nm.
F21K 9/00 - Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
F21K 9/64 - Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
F21V 9/20 - Dichroic filters, i.e. devices operating on the principle of wave interference to pass specific ranges of wavelengths while cancelling others
F21V 9/30 - Elements containing photoluminescent material distinct from or spaced from the light source
F21S 8/08 - Lighting devices intended for fixed installation with a standard
The present invention is directed to a compact omnidirectional light emitting diode (LED) light. In one embodiment, the compact omnidirectional light includes a metal base including a stalk, a power supply coupled to the metal base, a reflector including one or more reflector cups coupled to the metal base and enclosing the power supply, an LED circuit board including one or more LEDs coupled to the reflector and a lens coupled to the metal base and enclosing the LED circuit board and the reflector, wherein the lens surface is smooth.
F21K 9/232 - Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
F21V 29/70 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
F21V 29/77 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
F21K 9/68 - Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction - Details of reflectors forming part of the light source
F21V 7/24 - Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material
The present invention relates generally to a lighting apparatus for hazardous locations. In one embodiment, the lighting apparatus comprises a light engine, a heat sink coupled to the light engine, a stalk coupled to the light engine for externally coupling a power supply to the light engine and an electrical wiring splice box coupled to the stalk.
The present invention relates generally to a light transmitting device. In one embodiment, the light transmitting device includes a light emitting diode (LED) chip, a surface mounting device and a lens comprising a silicone based material, wherein a portion of the lens achieves a total internal reflection of a light emitted by the LED chip.
An LED (light emitting diode) illumination device that can generate a uniform light output illumination pattern. The illumination source includes first and second reflectors with a conic or conic-like shape. One reflector is mounted in the same plane as the LED and wraps around the front of the LED to redirect the light emitted along a central axis of the LED.
A method and apparatus for controlling an input voltage to a light emitting diode (LED) is disclosed. In one embodiment a system for controlling an input voltage to at least one LED includes an energy storage device. The energy storage device is coupled to the at least one LED. A current regulator is coupled the at least one LED for controlling activation and deactivation of the at least one LED. A control circuit is coupled to the current regulator for controlling a power supply providing an input voltage to the energy storage device, wherein the input voltage is provided in accordance with an amount of a headroom voltage measured across the current regulator.
45.
BEACON LIGHT WITH LIGHT-TRANSMITTING ELEMENT AND LIGHT-EMITTING DIODES
One embodiment of a light-emitting diode (LED) optic comprises a light-transmitting element having a plurality of segments, each segment associated with an optical axis and comprising a linearly projected cross-section. For each segment of the light-transmitting element, the LED optic comprises at least one LED positioned such that a central light-emitting axis of the at least one LED is angled at about 0° relative to the optical axis associated with that segment. In one embodiment, the about 0° has a tolerance of ±10°. Each segment of the light-transmitting element comprises a light-entering surface, a light-exiting surface and a light-reflecting surface. In one embodiment, for each segment the at least one LED comprises a plurality of LEDs.
A light source is disclosed. For example, the light source includes an enclosure forming an internal volume, the enclosure having at least one side, a top and a bottom. At least one light emitting diode (LED) may be deployed within the internal volume of the enclosure. Optionally, an optic may be coupled to each one of the at least one LEDs. The light source also includes a potting compound surrounding said at least one LED and substantially filling said internal volume or covering said top of said enclosure and substantially sealing said enclosure.
An LED (light emitting diode) illumination device that can generate a non- circular light output illumination intensity pattern. The illumination source including a reflector with a conic or conic-like shape. Further, an LED is positioned at approximately 90~ with respect to a central axis of the reflector.
A manufacturing process for storing measured light output internal to an individual LED assembly, and an LED assembly (100) realized by the process. The process utilizes a manufacturing test system to hold an LED light assembly a controlled distance and angle from the spectral output measurement tool. Spectral coordinates, forward voltage, and environmental measurements for the as manufactured assembly are measured for each base color LED. The measurements are recorded to a storage device internal to the LED assembly. Those stored measurements can then be utilized in usage of the LED assembly to provide accurate and precise control of the light output by the LED assembly.
49.
INTELLIGENT DRIVE CIRCUIT FOR A LIGHT EMITTING DIODE (LED) LIGHT ENGINE
A controller for controlling a light emitting diode (LED) light engine. The controller includes a temperature sensor configured to sensor temperature at the LED light engine. A current sensor senses a drive current of the LED light engine. A voltage differential sensor senses a voltage differential across LEDs of the LED light engine. A timer monitors a time of operation of the LED light engine. Further, a control device controls the drive current to the LED light engine based on the sensed temperature, the sensed drive current, the sensed voltage differential, and the monitored time of operation. Further, the control device outputs an indication of intensity degradation of an LED, and if the intensity degradation exceeds a predetermined threshold the control can output an indication of such to a user, so that the user can be apprised that the LED needs to be changed.
A light emitting diode (LED) light bulb that includes plural individual elements as sub-assembly elements of the overall light bulb. Different sub- assembly elements of a lens, a LED printed circuit board, a housing also functioning as a heat sink, a lower housing, and other individual sub-assembly components are utilized. The LED printed circuit board sub~assembly containing the LEDs can also be provided relatively close to a base.
A reflector device to be utilized with light emitting diodes (LEDs), and particularly with high-flux LEDs. In the reflector structure individual reflector portions surround at least one LED. Light output from each individual LED is reflected by sloping walls of each individual reflector portion and is redirected. As a result, light that may otherwise be lost is redirected to a more useful direction. Each individual reflector portion can have a cross~section of a conic shape, a complicated curve, and can also be oval in shape. A light device can be realized by utilizing such a master reflector with an LED light source.
A light device including side emitting status indicators that provide a true indication of whether light is being output in a primary output direction. The light device includes a light source of at least one LED configured to generate light in the primary output direction. The light generated by the at least one LEDs passes through a. lens device, that may also reflect a portion of the light generated from the at least one LED. Collection optics are provided to capture a portion of the generated light and/or the reflected portion of the light generated from the light source, and are configured to output the captured generated and/or reflected light in a direction other than the primary direction, i.e., in a direction for the side emitting status indicators.
patents
