OSRAM SYLVANIA INC. Patent applications |
Patent application number | Title | Published |
20160128140 | LIGHTING TECHNIQUES UTILIZING SOLID-STATE LAMPS WITH ELECTRONICALLY ADJUSTABLE LIGHT BEAM DISTRIBUTION - Solid-state lamps having an electronically adjustable light beam distribution are disclosed. In accordance with some embodiments, a lamp configured as described herein includes a plurality of solid-state emitters (addressable individually and/or in groupings) mounted over a non-planar interior surface of the lamp. The interior mounting surface can be concave or convex, as desired, and may be of hemispherical or hyper-hemispherical geometry, among others, in accordance with some example embodiments. In some embodiments, the heat sink of the lamp may be configured to provide the interior mounting surface, whereas in some other embodiments, a separate mounting interface, such as a parabolic aluminized reflector (PAR), a bulged reflector (BR), or a multi-faceted reflector (MR), may be included to such end. Also, the lamp may include one or more focusing optics for modifying its output. In some cases, a lamp provided as described herein may be configured for retrofitting existing lighting structures. | 05-05-2016 |
20160123564 | SOLID-STATE LUMINAIRE WITH ELECTRONICALLY ADJUSTABLE LIGHT BEAM DISTRIBUTION - A luminaire having an electronically adjustable light beam distribution is disclosed. In accordance with some embodiments, the disclosed luminaire includes a housing, for example, of hemi-cylindrical, oblate hemi-cylindrical, oblong elliptical, or polyhedral shape. The disclosed luminaire also includes a plurality of solid-state light sources arranged over its housing, in accordance with some embodiments. The one or more solid-state emitters of a given solid-state light source may be addressable individually and/or in one or more groupings, in some embodiments. As such, the solid-state light sources can be electronically controlled individually and/or in conjunction with one another, providing for highly adjustable light emissions from the host luminaire, in accordance with some embodiments. One or more heat sinks may be mounted on the housing to assist with heat dissipation for the solid-state light sources. The luminaire can be configured, for example, to be mounted or as a free-standing lighting device, as desired. | 05-05-2016 |
20160123541 | SOLID-STATE LAMPS WITH ELECTRONICALLY ADJUSTABLE LIGHT BEAM DISTRIBUTION - Solid-state lamps having an electronically adjustable light beam distribution are disclosed. In accordance with some embodiments, a lamp configured as described herein includes a plurality of solid-state emitters (addressable individually and/or in groupings) mounted over a non-planar interior surface of the lamp. The interior mounting surface can be concave or convex, as desired, and may be of hemispherical or hyper-hemispherical geometry, among others, in accordance with some example embodiments. In some embodiments, the heat sink of the lamp may be configured to provide the interior mounting surface, whereas in some other embodiments, a separate mounting interface, such as a parabolic aluminized reflector (PAR), a bulged reflector (BR), or a multi-faceted reflector (MR), may be included to such end. Also, the lamp may include one or more focusing optics for modifying its output. In some cases, a lamp provided as described herein may be configured for retrofitting existing lighting structures. | 05-05-2016 |
20160113118 | FORMABLE LIGHT SOURCE AND METHOD OF MAKING - A method of manufacturing a curved component of a lamp or luminaire comprising forming a sheet segment into a curved portion after forming an electrically conductive trace on the sheet segment and after placing a plurality of LEDs on the sheet segment is described. A luminaire provided by the method of manufacturing is also described herein. | 04-21-2016 |
20160111608 | THIN FILM WAVELENGTH CONVERTERS AND METHODS FOR MAKING THE SAME - Thin film wavelength converters and methods for making the same are disclosed. In some embodiments, the thin film converters include a first thin film layer of first wavelength conversion material, a conductive layer, and a second thin film layer of a second wavelength conversion material. In one embodiment, a photoresist mask is applied to the conductive layer to form a pattern of by which the second wavelength conversion material may be applied by electrophoretic deposition to the exposed regions of the surface of the conductive layer. | 04-21-2016 |
20160110980 | MULTI-CONDITION SENSING DEVICE INCLUDING AN IR SENSOR - Techniques are disclosed for using an infrared (IR) sensor to sense flame and/or activity within an environment of a building, such as a home or office. One example embodiment provides a multi-condition sensing device that includes an IR sensor for sensing both human occupancy and fire within a given environment. Another example embodiment provides a multi-condition sensing device that includes a plurality of sensors. A first of the sensors includes an IR sensor that is adapted to sense IR radiation within a given environment. A second of the sensors is adapted to sense a second environmental condition (different than IR radiation) within the given environment. Another example embodiment provides a standalone modular sensor block with a standard communication interface to a building management system. The sensor block may act as a combo-sensor as well as an active fire detector and alarm. | 04-21-2016 |
20160091176 | ILLUMINATION OPTICAL SYSTEM WITH TUNABLE BEAM ANGLE - An illumination optical system with a tunable beam angle (IOSTBA) is presented to achieve different beam angles without changing parts. The IOSTBA includes a light source and a post having a proximal end and a distal end, the proximal end in optical communication with the light source, an internal area of the post having a reflective surface. Also shown is a diffuser disposed across the end of the post, the diffuser in optical communication with the post and a reflector surrounding a portion of the post, the reflector movable along a length of the post. A position of the reflector along the post determines a beam angle of a resulting light beam exiting the IOSTBA. The system features a simple and cost effective optical design which works with a variety of light sources, including color mixing and champing strategies. | 03-31-2016 |
20160088708 | WIRELESS CONTROL OF LIGHTING SYSTEMS - A communication protocol is disclosed to wirelessly control and configure an array of lighting fixtures. The protocol allows dynamic lighting of a group of light fixtures or a single light fixture such that the protocol can support unicasting, multicasting and broadcasting communications. This protocol enables intelligent lighting fixtures to be automatically discovered in a wireless network. The protocol may also be used to configure the network parameters automatically, and can also upgrade the firmware or other local memory of the lighting fixtures. Additionally, the protocol may be used to control a media projecting device and/or servers, to change the media contents based on a scene locally selected at the area being illuminated. The lighting and media can collectively define or otherwise provide an overall “scene” by virtue of the lighting characteristics and media playback. | 03-24-2016 |
20160087524 | GENERATION OF DRIVE CURRENT INDEPENDENT OF INPUT VOLTAGE - Systems and methods to generate drive current in a power supply, independent of the input voltage, are provided. The power supply includes front end circuitry, control circuitry, and drive circuitry. The front end circuitry includes protection circuitry to defend against damage from EMI, voltage spikes, and the like. The control circuitry includes startup circuitry, power factor correction (PFC) circuitry, and output power configuration circuitry. The startup circuitry provides operational voltage to the PFC circuitry, derived from an input voltage, until an internally generated operational voltage becomes available. The PFC circuitry uses the operational voltage to generate output power for the drive circuitry based on the output power configuration circuitry. The drive circuitry includes drive current configuration circuitry to generate a drive current to drive a load, coupled to the power supply, independent of the input voltage. | 03-24-2016 |
20160084482 | Tubular LED Lamp with Flexible Circuit Board - There is herein described an LED lamp suitable for replacing conventional fluorescent lamps. The LED lamp has a tubular body and a flexible circuit board as compared to the rigid circuit boards used in other similar lamps. The flexible circuit board has a plurality of LEDs, electric circuitry for powering the LEDs, and a curvature that is maintained by a retention means. The curvature of the flexible circuit board substantially corresponds to the curvature of the tubular body which places the LEDs further away from the front surface of the lamp thereby allowing for improved diffusion and light distribution. | 03-24-2016 |
20160084449 | Tubular LED Lamp - There is herein described an LED lamp comprising a thermoformed circuit board and a tubular lamp body having a diffuser. The thermoformed circuit board comprises a substrate, an intermediate circuit board having electrical conductors, and a coverlay laminated to the substrate. The intermediate circuit board and electrical conductors are disposed between the substrate and the coverlay which has openings in which light-emitting diodes (LEDs) are mounted and electrically connected to the electrical conductors of the intermediate circuit board. Each of the substrate and coverlay is comprised of a formable polymer material and the thermoformed circuit board has an elongated shape with an arcuate cross section. Since the thermoformed circuit board has a curvature that can be substantially the same as the curvature of the tubular lamp body, the LED may be located approximately at the circumference of the lamp. | 03-24-2016 |
20160084446 | Tubular LED Lamp - There is herein described an LED lamp comprising a tubular body having a diffuser portion and a circuit board portion. The circuit board portion has a plurality of light-emitting diodes mounted thereon and electric circuitry for providing power to the LEDs. In one embodiment, the circuit board and diffuser portions are integrally formed from a sheet of a translucent polymer. As the circuit board forms a part of the tubular body of the lamp, the LEDs are located at the circumference of the lamp instead of near the center. Such a configuration improves diffusion and distribution of the light. Moreover, since the circuit board is not contained within the tubular body, there is no enclosure to trap excess heat which is an additional advantage. | 03-24-2016 |
20160049991 | ENERGY DELIVERY ON PATHS USED FOR COMMUNNICATION - Systems and methods for delivering energy on a bus used for communication between devices are provided. Systems and methods dynamically provide a predetermined recovery time between communication messages calculated from forward and response message types and/or length, and a model of the energy reserve in the network devices to allow time for energy storage circuits in the devices to charge. In addition or alternatively, systems and methods provide an extra recovery time between messages to allow the bus voltage to recover from a fold-back mode and/or include an extra current limit circuit to increase a power supply current when the combined energy required by the network devices is greater than a current limit on a power supply. | 02-18-2016 |
20160048716 | PASSIVE LIGHT-BASED DATA COMMUNICATION - Techniques are disclosed for light-based communication using a passive light-reflective device having specially coded reflective or printed optics. The optics can be mounted to an object and configured to reflect light such that a receiver is able to receive the reflected light. The optics are further configured to alternatively display a number of different patterns that change as the receiver moves with respect to the optics, thus causing the receiver to receive an apparent stream of modulated light, which represents coded information that can be decoded into meaningful information. The optics can be mounted to a traffic control or other roadside device. As a vehicle approaches and passes the traffic control device, light reflects off of the optics in a series of patterns. This reflected light can be received by the vehicle and processed to relay the information to the operator or on-board vehicle system. | 02-18-2016 |
20160043658 | ISOLATED TRANSFORMER-LESS CAPACITIVE POWER SUPPLY - An isolated transformer-less capacitive power supply, and methods for using the same to generate power, are disclosed. The power supply includes first and second input terminals to receive an alternating current (AC) voltage. The power supply also includes first rectifier circuitry coupled to the first and second input terminals. The first rectifier circuitry is configured to generate a first direct current (DC) voltage. The power supply also includes second rectifier circuitry, including a first capacitor and a second capacitor coupled to the first and second input terminals, respectively. The second rectifier circuitry is configured to receive the AC voltage via the first capacitor and the second capacitor and to generate a second DC voltage concurrently with the generation of the first DC voltage. | 02-11-2016 |
20160027971 | WAVELENGTH CONVERTERS AND METHODS FOR MAKING THE SAME - Disclosed herein are wavelength converters and methods for making the same. The wavelength converters include a single layer of a polymeric matrix material, and one or more types of wavelength converting particles. In some embodiments the wavelength converters include first and second types of wavelength converting particles that are distributed in a desired manner within the single layer of polymeric matrix material. Methods of forming such wavelength converters and lighting devices including such wavelength converters are also disclosed. | 01-28-2016 |
20160023242 | METHOD OF MAKING WAVELENGTH CONVERTERS FOR SOLID STATE LIGHTING APPLICATIONS - Disclosed herein are technologies utilizing sacrificial material layers for producing and transferring wavelength converters for light emitting devices via lift-off. In some embodiments the technologies utilize a precursor in the form of a substrate having a sacrificial layer formed thereon. The sacrificial layer may possess one or more properties that allow it to survive processing of a conversion layer formed thereon, and to facilitate removal of the substrate via a lift off process. In some embodiments the sacrificial layer may be configured to survive relatively high temperature processing without substantially affecting the performance of the conversion layer, and to facilitate removal of the substrate via laser lift off. | 01-28-2016 |
20160003670 | TECHNIQUES FOR LUMEN MAINTENANCE AND COLOR SHIFT COMPENSATION - Techniques are disclosed for maintaining consistent lumen output of a lighting assembly over time. By maintaining a consistent lumen output, it is possible to maintain acceptable color stability where color mixing of multiple outputs is used. The lighting assembly may be any lighting configuration that might suffer from lumen depreciation and/or color drift over time, and may include any type(s) of light source(s) that may be monitored and driven accordingly. The lighting assembly, in addition to light source(s), includes a photo detector and a directed light source, such as a laser. The directed light source provides a golden sample for use in calibrating the photo detector, which in turn monitors lumen output of the light source(s). Drive signals are adjusted to account for lumen depreciation of the monitored light source(s). | 01-07-2016 |
20150369658 | LIGHT ASSEMBLY EMPLOYING UNCHARACTERIZED LIGHT SOURCES - The present disclosure is directed to a light assembly employing uncharacterized light sources. An example device may comprise at least one light source, a memory and at least one interface. Light emitted by the at least one light source may be tested. Configuration data based on results of the testing may be stored in the memory. The above device may then be used in other assemblies. For example, a system may be assembled including at least one of the device and a power supply. The power supply may be able to read the configuration data from the memory and configure itself based on the configuration data. For example, to generate light with certain characteristics the power supply may use the configuration data to determine at least one drive current to cause the at least one device to emit light having the desired characteristics. | 12-24-2015 |
20150359061 | LIGHTING CONTROL TECHNOLOGY AND SYSTEMS AND METHODS USING THE SAME - Technologies for controlling light sources and systems and methods using the same are disclosed. In some embodiments, the technologies include a controller that is configured to independently control the intensity and/or color temperature of two light sources to achieve a target lighting characteristic, such as a target color temperature. Independent control over the intensity and/or color temperature of the lighting sources may depend at least in part on a time component, such as time of day or a time step correlating to a time of day. In some embodiments, the controllers are configured to employ one or more time dependent representations of lighting characteristics to determine parameters for independently controlling multiple light sources. The technologies may be used to achieve target lighting characteristics such as a target color temperature, even if two single mode sources are employed. | 12-10-2015 |
20150357920 | GENERATION AND REGULATION OF MULTIPLE VOLTAGE AUXILIARY SOURCE - An inverter for a lighting device including one or more solid state light sources is used to power a secondary load, such as a cooling device, sensor, or control with an auxiliary power circuit that provides a selectable auxiliary voltage to the secondary load. The auxiliary power circuit includes a voltage regulation circuit and a voltage selection circuit. The voltage selection circuit provides a feedback voltage to the voltage regulation circuit which his indicative of auxiliary output voltage. The voltage regulation circuit operates based on the feedback voltage and a reference voltage to adjust the auxiliary voltage to a level that differs from the input voltage from the inverter. | 12-10-2015 |
20150351183 | TRANSIENT POWER COMMUNICATION - A power supply system providing communication from a master module to at least one slave module via transients, to alter operation of a load, is provided. The master module output a supply voltage that is either a normal supply voltage or a reduced supply voltage. The outputted supply voltage depends on input corresponding to a communication to be sent to the slave module to alter operation of the load of the slave module. The slave module receives the supply voltage and interprets the received supply voltage, which may vary between the normal and reduced supply voltages, to determine what the communication from the master module is. The slave module then uses information from the communication to appropriately alter operation of its load. | 12-03-2015 |
20150345771 | LOW PROFILE LIGHT WITH IMPROVED THERMAL MANAGEMENT - An improved low profile light is provided. The low profile light includes one or more solid state light sources and a cover disposed in relation thereto, such that light emitted from the light sources passes through the cover. The low profile light also includes a driver, in a driver housing, that provides electrical power to the light sources. The low profile light also includes a housing. The housing includes a central portion with a first side and a second side; a lip that extends around an outer edge of the housing; a cover receptacle to receive the cover; an outer face that extends from the lip inward towards the cover receptacle; an inner surface that extends downward away from the central portion and upward towards the lip, so as to form a valley; and a fin that extends perpendicularly up from the central portion. | 12-03-2015 |
20150345751 | LUMINAIRE RETROFIT SYSTEM - A retrofit system for a luminaire including a tombstone socket is provided. The retrofit system includes an integrated holder and a tombstone socket receptacle. The integrated holder is configured to hold a solid state light engine and a power supply to power the solid state light engine. The tombstone socket receptacle is configured to interface with the tombstone socket of the luminaire, aligning the light engine in substantially the same place as a fluorescent lamp being replaced by the retrofit system within the luminaire. | 12-03-2015 |
20150345742 | LENSES AND LIGHTING DEVICES INCLUDING SAME - Optical components for lighting devices and lighting devices including such components are described. In some embodiments the optical components are in the form of a lens that alter the distribution of light produced by a lighting fixture. In some embodiments, the lenses are in the form of a downlight to wallwash lens which, when placed in a downlight fixture, convert the light distribution to that of a wallwash fixture, e.g., causing the downlight to produce an off-axis light distribution, without changing the fixture. The lens includes a body with a light source facing side and an opposite room facing side having two optically active regions, each including structures that redirect a portion of light received through the light source facing side and incident thereon. The first region includes structures that redirect, via refraction, and the second region includes structures that redirect, in part via total internal reflection. | 12-03-2015 |
20150330599 | LUMINAIRE WITH ANGLED REFLECTOR - A luminaire includes a plurality of solid state light sources arranged to emit light in respective angular distributions that are centered along a common optical axis. A reflector including one or more reflecting surfaces is arranged along a periphery of the solid state light sources. The reflector is positioned to receive light emitted at relatively high propagation angles from the solid state light sources, with respect to the optical axis, and reflects the light to have reduced propagation angles, with respect to the optical axis. The one or more reflecting surfaces have a generally flat cross-section that is angled away from the optical axis, and are arranged in a pattern around the periphery of the solid state light sources. The one or more reflecting surfaces can reflect specularly or diffusely. | 11-19-2015 |
20150327343 | PLANCKIAN AND NON-PLANCKIAN DIMMING OF SOLID STATE LIGHT SOURCES - Systems and methods of Planckian and non-Planckian dimming of solid state light sources are disclosed. For a given first range of correlated color temperature values on the 1931 CIE Chromaticity Diagram, the current through a plurality of solid state light sources is adjusted so that the light output thereby follows the correlated color temperature values relating to the black body curve over that given first range. For a given second range of correlated color temperature values, the current through a plurality of solid state light sources is adjusted so that the light output thereby deviates from black body curve and instead relates to a series of coordinates that tracks a line between the curve and a color point for one of the solid state light sources. | 11-12-2015 |
20150327340 | SYNCHRONIZED PWM-DIMMING WITH RANDOM PHASE - PWM-based dimming techniques are provided for lighting systems. The techniques can be used to eliminate or otherwise reduce the potential for strobing and flickering, and may be implemented, for example, in a driver suitable for powering LED lighting systems, but can be used with other suitable light sources as well. In an example embodiment, the potential for line frequency induced flicker, or even line disturbances that are periodic with the line frequency, can be eliminated or reduced by synchronizing the PWM frequency to the line frequency or so-called mains frequency, and the potential for strobing can be eliminated or reduced by either using a randomized phase angle on a cycle-to-cycle basis or by using multiple PWM LED drive circuits all having constant cycle-to-cycle phase angle but a different phase angle from drive circuit to drive circuit (or different from LED string to LED string, as the case may be). | 11-12-2015 |
20150325755 | TECHNIQUES FOR ADHERING SURFACE MOUNT DEVICES TO A FLEXIBLE SUBSTRATE - Techniques are disclosed for attaching SMDs to a flexible substrate using conductive epoxy bond pads. Each bond pad includes a set of elongated strips of conductive epoxy that are applied and cured onto the flexible substrate in an adjacent and parallel fashion. The bond pads are used to attach SMDs to the flexible substrate and also provide the conductive contacts for a printed circuit. A circuit may be printed on the flexible substrate using conductive ink that partially covers the bond pads, leaving a portion of the pads exposed. A second layer or strip of conductive epoxy may be applied over and across the exposed portions of the bond pad strips in order to attach an SMD. The number, size, and orientation of the epoxy bond pad strips may be determined by the amount of bending the flexible substrate is expected to withstand and/or the orientation of the bend. | 11-12-2015 |
20150319820 | DIMMABLE MULTICHANNEL DRIVER FOR SOLID STATE LIGHT SOURCES - Systems and methods for driving solid state light sources are provided. A first drive circuit is configured to generate a drive current to cause a first solid state light source load and a second solid state light source load to illuminate. A feedback and control circuit is configured to receive feedback from the first solid state light source load and to control the drive current through the first solid state light source load based on the feedback. A second drive circuit is configured to control the drive current through the second solid state light source load. A master controller is configured to provide a first input to the feedback and control circuit to control the drive current through the first solid state light source load and a second input to the second drive circuit to control the drive current through the second solid state light source load. | 11-05-2015 |
20150305103 | DRIVER FOR SOLID STATE LIGHT SOURCES - Techniques are disclosed for providing an adaptive and scalable output drive current by a lighting driver, which helps mitigate issues related to binning of solid state light sources. The disclosed techniques may be implemented, for example, with the use of header pins and one or more jumpers or so-called shunt connectors. This allows for a given driver with a constant current output to provide any number of desired output drive currents on demand, by switching and/or adding and/or removing one or more shunt connectors across the appropriate header pins. The header may include any number of pin-pairs, with each pin-pair capable of receiving a shunt connector. Any number of driver topologies may be implemented with the header, such as flyback, buck, boost, buck-boost, and variants thereof. | 10-22-2015 |
20150296591 | CIRCUITS FOR PHASE-CUT ANALOG DIMMING OF SOLID STATE LIGHT SOURCES - Circuits to provide phase-cut analog dimming of solid state light sources are presented. Each circuit comprises an anchoring circuit to communicate with a dimming controller circuit, the anchoring circuit having a proportional direct current (DC) voltage input, a biasing voltage input, a connection to a ground reference, and an output in communication with a dimming controller circuit. The anchoring circuit provides a reference voltage to permit phase cut dimming to be operable at a plurality of line voltages. | 10-15-2015 |
20150288293 | AUXILIARY POWER SUPPLY FOR AC POWERED ELECTRONICS - Techniques for supplying auxiliary power to AC powered lighting devices are disclosed. An auxiliary power supply can be used, for example, to provide auxiliary power to lighting control circuitry, an LED driver, or any other electronic lighting device. In some example embodiments, the linear regulator is connected to a switch that is controlled by a control circuit such that the linear regulator operates only when the instantaneous line input voltage is in a certain range where the linear regulator has a somewhat good efficiency. In such cases, when the linear regulator is operating, energy is stored with an auxiliary capacitor connected to the output of the linear regulator. In some embodiments, the linear regulator is configured to operate only when the line voltage is between a determined upper and lower voltage threshold; while in other cases the linear regulator is configured to operate only when the line voltage is increasing through the predetermined voltage threshold values. | 10-08-2015 |
20150282282 | CONTROLLING A SYSTEM THAT INCLUDES LIGHT-BASED COMMUNICATION (LCOM)-ENABLED LUMINAIRES - Techniques are disclosed for controlling a system including one or more light-based communication (LCom)-enabled luminaires. In some cases, the system may include: one or more LCom-enabled luminaires; a light sensor configured to detect LCom signals emitted from the luminaires; a computing device operatively coupled to the light sensor and configured to decode data from the LCom signals; and a controller configured to control the light output from at least one of the luminaires. The techniques may include calibrating, detecting, or otherwise setting up the system, such that the computing device knows at least one of the unique identification and position of each luminaire in the system. Once the initial set up is completed, the system can be controlled in a number of ways, such as manually or automatically controlling the light output from the luminaires for various applications, such as providing ambient light that complements video or audio content. | 10-01-2015 |
20150281905 | AUGMENTING LIGHT-BASED COMMUNICATION RECEIVER POSITIONING - Techniques are disclosed for augmenting light-based communication (LCom) receiver positioning using, for example, an inertial navigation system (INS). An LCom receiver INS may utilize one or more on-board accelerometers and gyroscopic sensors to calculate, via dead reckoning, the position, orientation, and velocity of the receiver. In this manner, the receiver can calculate its relative position using the INS based on a reference point or location. In some cases, the receiver may also or alternatively determine its location or position using a global positioning system (GPS), Wi-Fi-based positioning system (WPS), or some other suitable positioning system. When no LCom signals are in the FOV of the receiver and/or the link is lost to other positioning systems, the receiver INS may be used to augment the receiver positioning. In some cases, the INS mode may run parallel to other positioning techniques to continuously calculate the relative position of the receiver. | 10-01-2015 |
20150280829 | MULTIPLE PANEL LUMINAIRES FOR LIGHT-BASED COMMUNICATION - Multiple panel luminaires for light-based communication (LCom) and related techniques of use are disclosed. Each luminaire panel may comprise at least one solid-state light source, where the light sources are configured to output light. The luminaire may also include at least one modulator configured to modulate the light output of the light sources to allow for emission of LCom signals. The luminaire may also include a controller configured to synchronize timing of the LCom signals. In some cases, one panel may be configured to emit an LCom signal that is the inverse or duplicate of the LCom signal emitted from another panel. Panel signal inversion may be used to maintain a relatively constant level of light output from the luminaire and/or to create a virtual fiducial to provide orientation information. Using a multiple panel luminaire to transmit data may also result in improved data transmission rates and transmission reliability. | 10-01-2015 |
20150280823 | TECHNIQUES FOR SELECTIVE USE OF LIGHT-SENSING DEVICES IN LIGHT-BASED COMMUNICATION - Techniques are disclosed for selective use of light-sensing devices in light-based communication (LCom). In accordance with some embodiments, the disclosed techniques can be used, for example, in determining how and when to utilize a given light-sensitive device, such as a camera or an ambient light sensor, of a receiver device for purposes of detecting the pulsing light of LCom signals transmitted by an LCom-enabled luminaire. In accordance with some embodiments, determination of whether to utilize only a camera, only an ambient light sensor, or a combination thereof in gathering LCom data may be based, in part or in whole, on factors including time, location, and/or context. In some cases, improvements in system resource usage may be realized using the disclosed techniques. | 10-01-2015 |
20150280822 | TECHNIQUES FOR ENHANCING BAUD RATE IN LIGHT-BASED COMMUNICATION - Techniques are disclosed for coding light-based communication (LCom) data in a manner that allows for detection thereof, for example, via a standard low-speed (e.g., 30 frames per second) smartphone camera. In accordance with some embodiments, the disclosed techniques can be used, for example, in encoding and decoding LCom data in a manner that: (1) prevents or otherwise minimizes perceivable flicker of the light output by a transmitting LCom-enabled luminaire; and/or (2) avoids or otherwise reduces a need for additional, specialized receiver hardware at the receiver computing device including the camera. In some cases, the disclosed techniques can be used, for example, to enhance the baud rate between a transmitting LCom-enabled luminaire and a receiver device. | 10-01-2015 |
20150280821 | TECHNIQUES FOR SPATIALLY RESOLVING RECEIVED LIGHT-BASED COMMUNICATION SIGNALS - Techniques are disclosed for spatially resolving received light-based communication (LCom) signals. In an example case where one or more LCom signals are in the field of view (FOV) of an LCom receiver, the image representing the FOV may be captured and segmented into non-overlapping cells, such as hexagonal, triangular, rectangular, or circular shaped cells. Each LCom signal may be interpreted as a unique pixel cluster comprising one or more of the cells. In some cases, the LCom signals in the FOV may be received from multiple LCom-enabled luminaires and/or a single LCom-enabled luminaire having multiple light panels. The benefits of being able to spatially resolve received LCom signals may include establishing a link with multiple LCom signals within the FOV of a receiver without conflict and/or determining the location of those LCom signals, improving signal to noise ratio, augmenting position information, enhancing sampling frequency, and improving communication speed. | 10-01-2015 |
20150280820 | TECHNIQUES FOR ADAPTIVE LIGHT MODULATION IN LIGHT-BASED COMMUNICATION - Techniques are disclosed for adaptively modulating light in light-based communication (LCom). In accordance with some embodiments, the disclosed techniques can be used, for example, to dynamically adjust light modulation depth based, at least in part, on ambient light levels. In some cases, using the disclosed adaptive light modulation scheme, a given LCom-enabled luminaire may be configured to adjust the modulation depth dynamically and/or control the signal-to-noise ratio (SNR) such that the average light signal is kept constant, regardless of what LCom data is being transmitted. In some cases, the disclosed techniques can be used, for example, to dynamically adjust light modulation depth according to a given minimum light modulation depth assessed by measuring the ambient lighting conditions of the environment of the LCom-enabled luminaire. In some instances, an optimized or other target SNR can be provided using the disclosed techniques. | 10-01-2015 |
20150280819 | LIGHT-BASED COMMUNICATION TRANSMISSION PROTOCOL - Techniques are disclosed for providing light-based communication (LCom) between a receiver device and one or more transmitting LCom-enabled luminaires. In accordance with some embodiments, LCom data to be transmitted may be allocated over multiple colors of light output by multiple LCom-enabled luminaires and transmitted in parallel across the multiple colors of light using a time division multiple access (TDMA) scheme. In some cases, the disclosed techniques can be used, for example, to allow for multiple LCom-enabled luminaires to communicate simultaneously over multiple active LCom channels with a single receiver device. In some instances, the disclosed techniques may be used, for example, to provide channel redundancy that facilitates successful completion of LCom data transmission when an LCom channel is broken. In some instances, the disclosed techniques may be used, for example, to provide more accurate positioning for indoor navigation. | 10-01-2015 |
20150279207 | COMMUNICATION INTERFACE DEVICE FOR A SOLID-STATE LUMINAIRE - A device is disclosed for providing a communication interface for a solid-state luminaire. The disclosed device may be configured, for example, as a dongle to be electrically coupled with power lines between a driver and solid-state light source. The device may draw power from the power lines, while also adjusting and, if desired, monitoring current going to the light source. In some embodiments, the device splits current received from the driver into a first portion that is returned to the driver or consumed within the device and a second portion that is time-modulated and delivered to the light source. In some other embodiments, the device provides a time-varying impedance in series with the driver, reducing current received by the light source in a time-modulated manner. In either case, the device optionally may be configured to cause the light source to output a pulsing light signal encoded with data. | 10-01-2015 |
20150276399 | TECHNIQUES FOR DETERMINING A LIGHT-BASED COMMUNICATION RECEIVER POSITION - Techniques are disclosed for determining a light-based communication (LCom) receiver position. The techniques can be used to determine the position of a receiver relative to a specific luminaire within the field of view (FOV) of the receiver camera. The relative position may be calculated by determining the distance and the orientation of the receiver relative to the luminaire. The distance relative to the luminaire may be calculated using the observed size of the luminaire in an image generated by the receiver camera, the image zoom factor, and actual geometry of the luminaire. The orientation relative to the luminaire may be determined using a fiducial associated with the luminaire that can be used as an orientation cue. Once the position of a receiver relative to a luminaire is determined, the absolute position of the receiver may be calculated using the absolute position of the luminaire. | 10-01-2015 |
20150276145 | BATWING LIGHT BEAM DISTRIBUTION USING DIRECTIONAL OPTICS - A luminaire is provided to redirect incidence light from one or more solid state light sources to a batwing distribution with both tunable peak angle and beam width. The peak angle is able to be tuned from 90 degree to 0 degree from the incidence direction with very high efficiency. The beam width is able to be tuned with either narrow beam angle solid state light sources for high efficiency or TIR lens or the optical properties of a reflector for versatility. Uniform illuminance distribution is thus achieved across a wide field with or without a prism or diffuser cover. | 10-01-2015 |
20150267052 | POLYCYCLIC POLYSILOXANE COMPOSITION AND LED CONTAINING SAME - The present disclosure describes the use of a polycyclic polysiloxane polymer for light emitting diodes (LEDs). The polymer is characterized by high flame retardancy, high temperature stability, and low moisture and gas permeability. The polymer is useful as a potting compound for encapsulation of phosphors in LED packages, or as a molding resin for producing optical parts for LED light engines, or as a protective coating applied over the light emitting elements. | 09-24-2015 |
20150264779 | SOLID-STATE LUMINAIRE WITH MODULAR LIGHT SOURCES AND ELECTRONICALLY ADJUSTABLE LIGHT BEAM DISTRIBUTION - A luminaire having a plurality of power sockets arranged over its housing is disclosed. In some embodiments, the luminaire includes a driver operatively coupled with all (or some sub-set) of the power sockets and configured to control the light output of a modular solid-state light source operatively interfaced therewith. In some such embodiments, the luminaire also includes a power-line communication (PLC) module configured to output a PLC signal utilized by the driver in controlling the modular light source's output. In some other embodiments, the modular light source includes the driver, which may utilize a PLC signal, a command signal received from a remote source, or both, in controlling light output. In some cases, the modular solid-state light sources may allow the luminaire to produce a target light beam distribution utilizing a minimal or otherwise reduced quantity of such light sources, reducing cost and difficulty of installation and commissioning. | 09-17-2015 |
20150257223 | HYBRID DIMMING CONTROL TECHNIQUES FOR LIGHTING DRIVERS - Techniques are disclosed for independent control of individual LED strings driven from a single AC current source. A lighting driver circuit includes a DC-AC inverter with series resonance that provides a current that may be split into multiple currents for driving multiple LED assemblies. Current splitting transformers may be used to divide the current from the AC source, and the amplitude of the current from the AC source may be determined by a microcontroller. In some cases the current splitting transformers provide galvanic isolation to the LED assemblies. The multiple LED assemblies may be controlled by a number of switches that may independently activate the individual LED assemblies based on the duty cycle of multiple PWM signals provided to the switches by the microcontroller. When all of the PWM signals output from the microcontroller are on an off-cycle, the current source may be turned off. | 09-10-2015 |
20150257222 | HYBRID DIMMING CONTROL TECHNIQUES FOR LED DRIVERS - Techniques are disclosed for dimming LED strings using frequency modulation (FM) dimming and burst control dimming. At high brightness levels, FM dimming may be used to decrease the current through LED strings by increasing the switching frequency of pulses within a pulse train of an AC current source. At low brightness levels, or after the switching frequency has been increased to the resonant frequency of the current source, burst control dimming may decrease the current through LED strings by decreasing the duty cycle of the pulse train of the current source. At high brightness levels, FM dimming and burst control dimming may be combined by decreasing the duty cycle of the pulse train at each of a number of increasing switching frequency values. FM dimming may also be combined with frequency hopping in order to increase the number of available frequency steps. | 09-10-2015 |
20150253489 | Lightguide Design Techniques - Techniques are disclosed for obtaining a desired luminance and/or intensity distribution from any lighting fixture that is illuminated by a lightguide. The techniques can be used, for instance, to design a non-uniform surface texture (e.g., of light extraction features) for a lightguide, wherein the surface texture achieves a desired uniform or an intentionally non-uniform luminance distribution for a given lightguide shape/geometry, dimensions, and/or composition. In some embodiments, an iteration algorithm with illuminance distribution feedback is utilized to design a non-uniform surface texture (e.g., geometry, dimensions, quantity and/or spatial distribution of light extraction features) to achieve the target luminance distribution for a given lighting application. | 09-10-2015 |
20150243840 | Strain Relief Superlattices and Optoelectronic Devices Including the Same - Structures for transitioning between two layers of differing lattice parameters are disclosed. In some embodiments, the structures are in the form of a superlattice that serves as a strain relieving transition between two layers of differing lattice parameters. By controlling the properties of the superlattice, the superlattice can exhibit desirable properties such as transparency to light and lattice matching to one of the two layers of differing lattice parameters. Optoelectronic devices such as light emitting diodes including such superlattices are also disclosed. | 08-27-2015 |
20150236213 | INDEX MATCHED COMPOSITE MATERIALS AND LIGHT SOURCES INCORPORATING THE SAME - Disclosed are composites that include a matrix and at least one filler. The matrix may be a core-shell particle assembly that includes an inorganic core and a polymeric shell. The refractive index of the core may be adjusted by adjusting the volume fraction of the core, such that the refractive index of the core-shell particle assembly matches or substantially matches the refractive index of the filler. Optically transparent composites that exhibit properties of the filler may therefore be achieved. Methods of making such composites and light sources including such composites are also disclosed. | 08-20-2015 |
20150233543 | SHAPED INDIRECT LUMINAIRE - A luminaire is provided, that includes a housing and a plurality of solid state light sources connected thereto. The housing has a top side, two lateral sides, a protrusion in the top side, and two light source mounting surfaces. The top side is diffusely reflecting and has opposing lateral edges and a center. The lateral sides are specularly reflecting and extend generally downward from the opposing lateral edges of the top side. Each has a respective bottom edge. The light source mounting surfaces extend laterally inward from the respective bottom edges. The plurality of solid state light sources is disposed along the pair of light source mounting surfaces proximate the pair of specularly reflecting lateral sides. These emit light, which travels upward to the top side and is also specuarly reflected by the lateral sides toward the top side. The top side diffusely reflects the light out of the luminaire. | 08-20-2015 |
20150233542 | BATWING OPTICS FOR INDIRECT LUMINAIRE - A luminaire is provided, that includes a housing and a plurality of solid state light sources connected thereto. The housing has a top side, two lateral sides, a protrusion in the top side, and two light source mounting surfaces. The top side is diffusely reflecting and has opposing lateral edges and a center. The lateral sides are specularly reflecting and extend generally downward from the opposing lateral edges of the top side. Each has a respective bottom edge. The light source mounting surfaces extend laterally inward from the respective bottom edges. The plurality of solid state light sources is disposed along the pair of light source mounting surfaces proximate the pair of specularly reflecting lateral sides. These emit light, which travels upward to the top side and is also specularly reflected by the lateral sides toward the top side. The top side diffusely reflects the light out of the luminaire. | 08-20-2015 |
20150223346 | DUAL SOLDER LAYER FOR FLUIDIC SELF ASSEMBLY AND ELECTRICAL COMPONENT SUBSTRATE AND METHOD EMPLOYING SAME - A dual solder layer for fluidic self assembly, an electrical component substrate, and method employing same is described. The dual solder layer comprises a layer of a self-assembly solder disposed on a layer of a base solder which is disposed on the solder pad of an electrical component substrate. The self-assembly solder has a liquidus temperature less than a first temperature and the base solder has a solidus temperature greater than the first temperature. The self-assembly solder liquefies at the first temperature during a fluidic self assembly method to cause electrical components to adhere to the substrate. After attachment, the substrate is removed from the bath and heated so that the base solder and self-assembly solder combine to form a composite alloy which forms the final electrical solder connection between the component and the solder pad on the substrate. | 08-06-2015 |
20150180220 | DETECTION OF INTERCONNECTED OUTPUTS - Systems and methods for detection of interconnected outputs of a power supply are provided. A first channel of a power supply is activated, such that power is supplied to a first load connected to the first channel. A first load voltage is measured for the first load. A second load voltage is measured for a second load connected to a second channel of the power supply. The second load voltage is compared to the first load voltage to generate an interconnection result. The power supply is shut down when the interconnection result indicates that the second load voltage matches the first load voltage, such that all channels of the power supply do not supply power to any load connected thereto. | 06-25-2015 |
20150159812 | SUBSTRATES WITH STIFFENERS FOR LIGHTING AND ELECTRONIC APPLICATIONS - Substrates for electronic components are disclosed. In some example embodiments, a light source is provided with a substrate, at least one electronic package coupled to said substrate by an adhesive at an associated mounting location, and a stiffener proximate to said mounting location for reducing flexing of said substrate in said mounting location compared to flexing of said substrate in said mounting location in the absence of said stiffener. | 06-11-2015 |
20150138785 | ENCLOSURE WITH GROMMETLESS STRAIN RELIEF - Enclosures with grommetless strain relief are provided, each including a base and a cover. The base has a bottom and four sidewalls arranged to provide an open box-like structure. A first of the sidewalls of the base is configured with a wire routing slot at its perimeter. The cover has a top and four sidewalls arranged to provide an open box-like structure configured to couple with the base, so as to provide a strain relief for an electrical wire passing through the wire routing slot. The wire is pressed against a length of the first sidewall of the base by a first sidewall of the cover. The enclosure may include other features, such as rounded edges in the wire routing path, a wire guide and/or strap to inhibit wire movement between the first sidewalls, and/or one or more locking mechanisms configured to secure the cover to the base. | 05-21-2015 |
20150137685 | LAMP FUSE IN PRESS SEAL CAVITY | 05-21-2015 |
20150131290 | FIXTURE DESIGN FOR FLEXIBLE LED CIRCUIT BOARDS - Techniques are disclosed for designing light fixtures for flexible LED circuit boards. The flexible LED circuit boards include an array of LED packages and the surface of the flexible circuit boards is highly reflective. A flexible LED circuit board may be shaped to conform to a rigid preform and the preform may be concave, convex, corrugated, or have any other custom shape. The shape of the preform, as well as the location of the LEDs within the flexible LED circuit may determine the light distribution of the light fixture. Alternatively, the lighting fixture may have multiple rods held in place with side plates and a flexible LED circuit board may be woven between the rods. A set of hole patterns in the side plates determine the location of the rods and the rods will determine the shape of the flexible LED circuit. | 05-14-2015 |
20150131289 | FIXTURE DESIGN FOR FLEXIBLE LED CIRCUIT BOARDS - Techniques are disclosed for designing light fixtures for flexible LED circuit boards. The flexible LED circuit boards include an array of LED packages and the surface of the flexible circuit boards is highly reflective. A flexible LED circuit board may be shaped to conform to a rigid preform and the preform may be concave, convex, corrugated, or have any other custom shape. The shape of the preform, as well as the location of the LEDs within the flexible LED circuit may determine the light distribution of the light fixture. Alternatively, the lighting fixture may have multiple rods held in place with side plates and a flexible LED circuit board may be woven between the rods. A set of hole patterns in the side plates determine the location of the rods and the rods will determine the shape of the flexible LED circuit. | 05-14-2015 |
20150130933 | HUMAN PRESENCE DETECTION TECHNIQUES - Techniques are disclosed for detecting stationary presence using IR sensor data. A number of IR images may be captured based on IR sensor data and these IR images may be averaged over various time intervals to calculate a number of average IR frames. The difference between these average IR frames provides a delta frame. A mask frame may be calculated as the summation of delta frames over time, and the value of the mask frame may be used to detect a stationary human presence even when no delta value is calculated. Alternatively, the mask frame may be used to calculate a background frame that represents the IR signature of stationary or cyclical objects within the scanned area that are not intended to trigger the presence detection system. A stationary presence may be determined by subtracting the background frame from a current average IR frame. | 05-14-2015 |
20150129909 | FLEXIBLE CIRCUIT BOARD FOR LED LIGHTING FIXTURES - Techniques are disclosed for making a flexible laminated circuit board using a metal conductor onto which a SMD may be attached. Conductive metal strips may be laminated to form a flexible substrate and the metal strips may then be perforated for the placement of LED package leads. The LED packages may be attached to the conductive strips using solder or a conductive epoxy and the upper laminate layer may include perforations exposing portions of the metal strips for the attachment of the LED packages. Alternatively, strings of LED packages may be fabricated by attaching LED packages to conductive strips and these strings may be laminated between flexible sheets to form a laminated LED circuit. Plastic housings may aid in attaching the LED packages to the conductive strips. The plastic housings and/or the laminate sheets may be made of a reflective material. | 05-14-2015 |
20150129899 | LED LEAD FRAME FOR LAMINATED LED CIRCUITS - Techniques are disclosed for integrating the LED lead frame into the LED circuit fabrication process. The LED packages within the lead frame may be spaced according to the final spacing of the LED packages on the finished circuit board, such that multiple LED packages may be attached to a circuit board at a time by applying the lead frame to circuit board and then removing portions of the lead frame, leaving the LED packages attached to the board. The LED packages may be attached using solder or conductive epoxy, in some embodiments. Alternatively, part of the lead frame may include conductive wires forming one or more strings of LED packages. An entire string of LED packages may then be removed from the lead frame in a single motion and placement may be performed for a string of LED packages all at once rather than for individual LED packages. | 05-14-2015 |
20150123575 | COMMUNICATION SYSTEM - A system according to various embodiments of the disclosure includes a bus and a plurality of devices coupled to the bus, the devices configured to communicate with each other via the bus. The system further includes a power supply coupled to the bus, the power supply for supplying power to the plurality of devices via the bus. The power supply is configured to detect an event, and in response to the event, alternately supply power to the plurality of devices via the bus at a first current level or at a second current level, the second current level less than the first current level. Among other things, embodiments in this disclosure help allow additional devices to be used on a bus, even where the total power consumption of the devices would normally exceed a maximum defined by a bus architecture. Furthermore, various embodiments help allow a single gauge of wire to be used throughout a bus network (even where long lengths of wire are required) while still providing sufficient power to the devices connected to the bus. | 05-07-2015 |
20150115830 | POWER LINE COMMUNICATION FOR LIGHTING SYSTEMS - Techniques are provided for bi-directional communication between a power supply and one or more light engines (and/or other lighting system components) via the existing power lines so that no additional communication wires are needed. In particular, the power supply can transmit information by modulating its output (voltage or current) and the light engine (or other lighting componentry, such as a sensor) can communicate back by modulating how much power it draws from the power supply. Any suitable type of modulation scheme can be used, and a master-slave arrangement can be used to control the bi-directional communication if so desired, so as to avoid multiple devices communicating over the power line communication channel at the same time. Other embodiments allow a multiple simultaneous communications over the power line communication channel. | 04-30-2015 |
20150115809 | POWER LINE COMMUNICATION FOR LIGHTING SYSTEMS - Techniques are provided for bi-directional communication between a power supply and one or more light engines (and/or other lighting system components) via the existing power lines so that no additional communication wires are needed. In particular, the power supply can transmit information by modulating its output (voltage or current) and the light engine (or other lighting componentry, such as a sensor) can communicate back by modulating how much power it draws from the power supply. Any suitable type of modulation scheme can be used, and a master-slave arrangement can be used to control the bi-directional communication if so desired, so as to avoid multiple devices communicating over the power line communication channel at the same time. Other embodiments allow a multiple simultaneous communications over the power line communication channel. | 04-30-2015 |
20150108908 | DRIVING A MULTI-COLOR LUMINAIRE - Embodiments are disclosed for driving a multi-color solid state light source luminaire so as to maintain a color point as temperature varies within a given range. An array of solid state light sources includes two or more strings and is driven by a single constant current source. The array is topologically arranged to allow for control of the division of current between the strings of solid state light sources. In one such current-sharing scenario, the duty cycle of a switching control signal corresponds directly to the proportion of current that flows in one of two distinct strings of solid state light sources. Thermal feedback is used to control the duty cycle. In this way, the amount of current that flows in both strings may be adjusted as temperature changes. | 04-23-2015 |
20150104185 | TECHNIQUES FOR RASTER LINE ALIGNMENT IN LIGHT-BASED COMMUNICATION - Techniques are disclosed for providing proper raster line alignment of a camera or other light-sensing device of a receiver device relative to a transmitting light-based communication (LCom)-enabled luminaire to establish reliable LCom there between. In accordance with some embodiments, proper alignment can be provided automatically (e.g., by the receiver device and/or other suitable controller). In accordance with some embodiments, proper alignment can be provided by the user. In some instances in which a user is to be involved in the alignment process, the receiver device may be configured, for example, to instruct or otherwise guide the user in the process of properly aligning the receiver device relative to a given transmitting LCom-enabled luminaire. | 04-16-2015 |
20150098709 | TECHNIQUES FOR EMITTING POSITION INFORMATION FROM LUMINAIRES - Techniques are disclosed for emitting position information from luminaires. Luminaire position information may be emitted via a light-based communication (LCom) signal that comprises data including the position information. The data may include relative and/or absolute position information for the luminaire and may indicate the physical location of the luminaire. Relative position information for the luminaire may include coordinates relative to a point of origin within the environment. Absolute position information for the luminaire may include global coordinates for the luminaire. In some cases, the absolute position information for a luminaire may be calculated using position information for the luminaire relative to a point of origin and the absolute position of the point of origin. The data may also include an environment identifier, which may indicate a map to use for the interpretation of position information for the luminaire. The techniques can be used for both stationary and mobile luminaires. | 04-09-2015 |
20150093860 | ORIENTATION-INDEPENDENT DEVICE CONFIGURATION AND ASSEMBLY - The present disclosure is directed to orientation-independent device configuration and assembly. An electronic device may comprise conductive pads arranged concentrically on a surface of the device. The conductive pads on the device may mate with conductive pads in a device location in circuitry. Example conductive pads may include at least a first circular conductive pad and a second ring-shaped conductive pad arranged to concentrically surround the first conductive pad. The concentric arrangement of the conductive pads allows for orientation-independent placement of the device in the circuitry. In particular, the conductive pads of the device will mate correctly with the conductive pads of the circuitry regardless of variability in device orientation. In one embodiment, the device may also be configured for use with fluidic self-assembly (FSA). For example, a device housing may be manufactured with pockets that cause the device to attain neutral buoyancy during manufacture. | 04-02-2015 |
20150092429 | FLEXIBLE CIRCUIT BOARD FOR ELECTRONIC APPLICATIONS, LIGHT SOURCE CONTAINING SAME, AND METHOD OF MAKING - A flexible circuit board is described that includes a flexible substrate, at least one ridge defining a flexion zone and a component mounting area. The flexion zone acting to dissipate at least a portion of a force applied to the substrate, so as to insulate the component mounting area from the force. Light sources using such flexible circuit boards and methods for making such circuit boards are also described. | 04-02-2015 |
20150092428 | CONTROL TECHNIQUES FOR LIGHTING FIXTURES HAVING SPATIAL DISTRIBUTION CONTROL CAPABILITIES - Techniques and user interfaces are disclosed for controlling lighting fixtures having spatial distribution control capabilities. In some cases, the control techniques may use a high-level controller to define target and spread inputs for a desired illumination pattern provided by a lighting fixture in a given area to be lit. In such cases, the target and spread inputs may be transmitted, or otherwise provided, to a control module, which may be included in the lighting fixture. The control module may be configured to translate the inputs into the appropriate movements and/or light source adjustments based on the specific lighting fixture being used to achieve the desired illumination pattern. In some cases, multiple lighting fixtures may be controlled by one or more control modules. In such cases, the high-level controller may be configured to provide inputs to the control module(s) to cause one or more illumination patterns using the lighting fixtures. | 04-02-2015 |
20150092413 | CUTTABLE FLEXIBLE LIGHT ENGINES - Flexible light engines capable of being cut, and methods thereof, are provided. A cuttable flexible light engine includes a flexible strip and strings of solid state light sources coupled in parallel. A voltage balancer establishes a desired current flow through the strings of solid state light sources when the flexible strip is cut to a desired length, and may be part of a connector placed where the strip is cut. The strings may be provided in a first set of strings coupled in parallel between a first conductive path and an intermediate conductive path and a second set of strings coupled in parallel between the intermediated conductive path and a second conductive path. A cuttable flexible light engine may also include test points positioned within the strings. | 04-02-2015 |
20150092406 | LIGHTING FIXTURE HAVING SPATIAL DISTRIBUTION CONTROL CAPABILITIES - Techniques are disclosed for a lighting fixture having spatial distribution control capabilities. In some cases, the lighting fixture may include an array of light modules that each contain one or more light sources (e.g., LED light sources) and multiple plates that can be used to control the spatial distribution (e.g., aim and focus) of the light modules. In such multi-plate lighting fixtures, the fixture may include a fixed base plate that includes multiple sockets for pivotally retaining a ball portion of each light module. The fixture may also include an XY plate that is movably coupled to the base plate and a focus plate that is rotationally coupled to the base plate, both plates including multiple slots that overlap to constrain a control arm of each light module. The multi-plate lighting fixture may be manually controlled or automated. | 04-02-2015 |
20150087174 | MOUNTABLE CONNECTOR BOX FOR ELECTRICAL DEVICE - An electrical connector box, capable of mounting a type of electrical device to a surface, including methods of so mounting, is provided. The box includes a housing configured with a hollow to receive electronics of a device. The housing includes a first set of two or more anchor point locations and a second set of two or more anchor point locations. The box also includes a first spring clip, fastened to one of the first set of two or more anchor point locations, and a second spring clip, fastened to one of the second set of two or more anchor point locations. The spring clips are each capable of moving between a compressed position and a deployed position. The anchor point locations to which the first spring clip and the second spring clip are anchored are changeable to accommodate various electrical devices, including lighting devices such as luminaires. | 03-26-2015 |
20150085497 | WAVELENGTH CONVERTER AND LIGHT-EMITTING DEVICE HAVING SAME - An alumina-based ceramic wavelength converter is described having a surface layer containing a second phase of alumina, preferably as alumina crystallites. The surface layer is formed as a result of the sintering process used to form the bulk ceramic which is itself substantially transparent. The ceramic wavelength converter is combined with a light emitting diode to form a light emitting device. Preferably, the ceramic wavelength converter is comprised of an alumina-based phosphor represented by a general formula A | 03-26-2015 |
20150085481 | SOLID-STATE LUMINAIRE WITH PIXELATED CONTROL OF LIGHT BEAM DISTRIBUTION - A luminaire having an electronically adjustable light beam distribution is disclosed. In some embodiments, the disclosed luminaire includes a plurality of solid-state lamps mounted on one or more surfaces of a housing. The lamps can be electronically controlled individually and/or in conjunction with one another, for example, to provide highly adjustable light emissions from the luminaire (e.g., pixelated control over light distribution). In some cases, a given solid-state lamp may include tunable electro-optic componentry to provide it with its own electronically adjustable light beam. One or more heat sinks optionally may be mounted on the housing to assist with heat dissipation for the solid-state lamps. The luminaire can be configured to be mounted or as a free-standing lighting device, in accordance with some embodiments. In some embodiments, the aperture through which the lamps provide illumination is smaller than the distribution area of the solid-state lamps of the luminaire. | 03-26-2015 |
20150085475 | SOLID-STATE LUMINAIRE WITH ELECTRONICALLY ADJUSTABLE LIGHT BEAM DISTRIBUTION - A luminaire having an electronically adjustable light beam distribution is disclosed. In some embodiments, the disclosed luminaire includes a plurality of solid-state lamps mounted on one or more surfaces of a housing. The lamps can be electronically controlled individually and/or in conjunction with one another, for example, to provide highly adjustable light emissions from the luminaire (e.g., pixelated control over light distribution). In some cases, a given solid-state lamp may include tunable electro-optic componentry to provide it with its own electronically adjustable light beam. One or more heat sinks optionally may be mounted on the housing to assist with heat dissipation for the solid-state lamps. The luminaire can be configured to be mounted or as a free-standing lighting device, in accordance with some embodiments. In some embodiments, the aperture through which the lamps provide illumination is smaller than the distribution area of the solid-state lamps of the luminaire. | 03-26-2015 |
20150084542 | CONTROLLING OBJECT APPEARANCE WITH VARIABLE SPECTRAL DISTRIBUTION OF LIGHTING HAVING CONSTANT CHROMATICITY - Techniques are disclosed for controlling object appearance while maintaining a lighting function without noticeable changes in illumination. The techniques may be implemented to illuminate a given target with a first light source so as to cause the target to have a first appearance, and to illuminate the target with a second light source so as to cause the target to have a second appearance different from the first appearance. The first and second light sources have a chromaticity within a common MacAdam ellipse. The MacAdam ellipse size may range, for example, from a 7-step ellipse (for relaxed constancy in chromaticity) to a 1-step ellipse (for high constancy in chromaticity). In some cases, one of the first or second light sources includes a spectral feature not included in the other light source, and an optical response property of the target reacts to changes in the spectral feature thereby causing appearance changes. | 03-26-2015 |
20150084514 | TECHNIQUES AND PHOTOGRAPHICAL USER INTERFACE FOR CONTROLLING SOLID-STATE LUMINAIRE WITH ELECTRONICALLY ADJUSTABLE LIGHT BEAM DISTRIBUTION - Techniques and user interfaces (UIs) are disclosed for controlling a solid-state luminaire having an electronically adjustable light beam distribution. The disclosed UI may be configured, in accordance with some embodiments, to provide a user with the ability to control, by wireless and/or wired connection, the light distribution of an associated solid-state luminaire in a given space. The UI may be hosted by any computing device, portable or otherwise, and may be used to control any given light distribution capability provided by a paired luminaire. In accordance with some embodiments, the user may provide such control without need to know details about the luminaire, such as the quantity of solid-state lamps, or their individual addresses, or the address of the fixture itself. In some cases, the disclosed techniques may involve acquiring spatial information of the space that hosts the luminaire and/or providing user-selected distribution of light within that space. | 03-26-2015 |
20150084513 | TECHNIQUES AND GRAPHICAL USER INTERFACE FOR CONTROLLING SOLID-STATE LUMINAIRE WITH ELECTRONICALLY ADJUSTABLE LIGHT BEAM DISTRIBUTION - Techniques and user interfaces (UIs) are disclosed for controlling a solid-state luminaire having an electronically adjustable light beam distribution. The disclosed UI may be configured, in accordance with some embodiments, to provide a user with the ability to control, by wireless and/or wired connection, the light distribution of an associated solid-state luminaire in a given space. The UI may be hosted by any computing device, portable or otherwise, and may be used to control any given light distribution capability provided by a paired luminaire. In accordance with some embodiments, the user may provide such control without need to know details about the luminaire, such as the quantity of solid-state lamps, or their individual addresses, or the address of the fixture itself. In some cases, the disclosed techniques may involve acquiring spatial information of the space that hosts the luminaire and/or providing user-selected distribution of light within that space. | 03-26-2015 |
20150078010 | THIN FILM WAVELENGTH CONVERTERS AND METHODS FOR MAKING THE SAME - Thin film wavelength converters and methods for making the same are disclosed. In some embodiments, the thin film converters include a first thin film layer of first wavelength conversion material, a conductive layer, and a second thin film layer of a second wavelength conversion material. In one embodiment, a photoresist mask is applied to the conductive layer to form a pattern of by which the second wavelength conversion material may be applied by electrophoretic deposition to the exposed regions of the surface of the conductive layer. | 03-19-2015 |
20150062952 | LENS AND RETAINER COMBINATION - A retainer ( | 03-05-2015 |
20150062934 | LUMINAIRE ADAPTER WITH TOMBSTONE COVER - A luminaire adapter is provided. The luminaire adapter includes a tombstone cover and a light source bracket. The tombstone cover includes a housing that defines a slot opening to accept a tombstone socket and a pair of snap connectors. The light source bracket includes a top portion and a bottom portion. The top portion and the bottom portion are configured to connect. The bottom portion includes a pair of snap receivers configured to receive the pair of snap connectors of the tombstone cover. The top portion and the bottom portion define an opening to receive a luminaire. | 03-05-2015 |
20150062838 | SYSTEM FOR ATTACHING DEVICES TO FLEXIBLE SUBSTRATES - This disclosure is directed to a system for attaching devices to flexible substrates. A device may be coupled to a flexible substrate in a manner that prevents adhesive from contacting conductive ink while the adhesive is harmful. If conductive epoxy is used to anchor conductive pads in the device to the flexible substrate, conductive epoxy may be applied beyond the edge of the device over which conductive ink may be applied to make electrical connections. Holes may also be formed in the flexible substrate allowing conductive epoxy to be exposed on a surface of the flexible substrate opposite to the device location, the conductive ink connections being made on the opposite surface. The conductive ink may also be applied directly to the conductive pads when extended beyond the device's edge. The flexible substrate may be pre-printed with circuit paths, the conductive ink coupling the device to the circuit paths. | 03-05-2015 |
20150049444 | CONDUCTOR PAD FOR FLEXIBLE CIRCUITS AND FLEXIBLE CIRCUIT INCORPORATING THE SAME - A conductor pad and a flexible circuit including a conductor pad are provided. The conductor pad includes a first contact region, a second contact region, and a body portion configured to establish a conductive path between the first contact region and the second contact region. The body portion includes a perimeter edge having at least a first convex segment and a second convex with a first non-convex segment disposed between the first convex segment and the second convex segment. A method of constructing a flexible circuit to facilitate roll-to-roll manufacturing of the flexible circuit is also provided. | 02-19-2015 |
20150048762 | MULTI-STANDARD LIGHTING CONTROL INTERFACE CIRCUIT - Lighting control interface techniques and corresponding circuitry are provided. The techniques include receiving a first signal potentially representative of a first lighting control signal, and receiving a second signal potentially representative of a second lighting control signal, and determining if either of the first and second signals complies with a first or second lighting control protocol. The lighting control signal may be applied to the same interface connector (regardless of the protocol), thereby eliminating the need for separate dedicated interface connectors. In some cases, the techniques further include determining that a dummy control signal is manifesting in the first and/or second signals, thereby indicating that no lighting control signal is being applied. Depending on the resulting determination, the techniques may include, for example, setting output lighting power according to a pre-established value, or according to the first or second lighting control protocol. | 02-19-2015 |
20150047183 | CONNECTOR RELEASE TOOL - A connector release tool ( | 02-19-2015 |
20150043246 | PRIMARY SIDE NO LOAD DETECTION AND SHUTDOWN CIRCUIT IN AN ISOLATED DRIVER - A no load detection and shutdown circuit in an isolated driver is provided. A no load condition is detected by primary side evaluation of a reflected voltage. If a determination is made that a no load condition is present, the no load detection circuit signals a half bridge driver of the driver to cease oscillations, shutting down the driver. | 02-12-2015 |
20150042242 | OUTPUT CURRENT CONFIGURATION BASED ON LOAD CONNECTION - A driver port that provides selectable output currents based on connections thereto, and a driver including the same, is provided. A plurality of shunt resistors are connected in series between a negative output of a driver and a ground. A driver port having a plurality of connection points is provided, each respective connection point connected to a different connection between two of the plurality of shunt resistors. A load including one or more solid state light sources is capable of being connected between one of the connection points of the driver port and a positive output of the driver. | 02-12-2015 |
20150042227 | BI-LEVEL CURRENT CONFIGURABLE DRIVER - A bi-level current configurable driver is provided. The driver includes a feedback circuit, a driver circuit providing a driver signal to a half bridge inverter, and a step-dim interface coupled to a first alternating current input line, a second alternating current input line, and a neutral line, providing voltage to the driver circuit. The driver also includes a first feedforward circuit coupled to the step-dim interface, where the first feedforward circuit receives a first signal from the step-dim interface based on the states of the first alternating current input line, the second alternating current input line, and the neutral line. In a first state, the driver provides full current to a load, and in a second state, the driver provides less than full current to the load. | 02-12-2015 |
20150028754 | ZERO ENERGY STORAGE DRIVER INTEGRATED IN LED CHIP CARRIER - LED devices are provided that include LED chips on LED chip carriers. The LED device can in turn be housed in a package, such as a small-outline transistor (SOT) package or a radial LED device package. A single LED device or a serial connection of a plurality of such LED devices can be operated directly from an AC (line) voltage or a rectified version thereof. In some example embodiments, switching circuitry is integrated into the LED chip carrier for controlling current flow through the LED(s) in response to, for example, a brightness regulating control signal. Numerous example embodiments of the monolithic LED devices are provided, including manufacturing processes as well as various example packages for such LED devices. | 01-29-2015 |
20150025709 | SPATIALLY AND/OR DISTANCE DEFINED LIGHT-BASED COMMUNICATIONS IN A VEHICLE/ROADWAY ENVIRONMENT - Techniques are disclosed for providing spatially-defined and/or distance-defined light-based communications within a vehicle/roadway environment. In some embodiments, the techniques can be used to vary the data content of a given transmitted light-based communications signal based on factors such as position, distance, and/or proximity of the transmitting source and the receiver. In some embodiments, the techniques can be used to vary the processing or other handling of a received light-based communications signal based on one or more of such factors. In some instances, the disclosed techniques can be utilized to tailor light-based vehicle-to-X (V2X) communications for dissemination between and among vehicles and infrastructure in a vehicle/roadway environment. To that end, a node may host a transmitter (e.g., laser, LED, or other solid-state light source) configured to emit such light-based communication signals and/or a receiver (e.g., a photosensor or other light-based data input device) configured to sense such signals. | 01-22-2015 |
20150023668 | LIGHT-BASED COMMUNICATIONS UTILIZING A GOSSIP NETWORK IN A VEHICLE/ROADWAY ENVIRONMENT - Techniques are disclosed that can be implemented as a light-based communications network exhibiting gossip network topology. In some embodiments, the network may include a plurality of mobile and/or fixed communicating nodes (peers) configured for light-based communications with one another. To that end, a node may host a transmitter (e.g., laser, LED, or other solid-state light source) configured to emit light-based communication signals and/or a receiver (e.g., a photosensor or other light-based data input device) configured to sense such signals. In some cases, the network may be used to propagate or otherwise disseminate strategic, tactical, and/or other vehicle-to-X (V2X) communications between vehicles and infrastructure in a vehicle/roadway environment. In some instances, the gossip topology may provide for relay and aggregation of information from node to node, improving reliability and availability of information propagated within the network. In some embodiments, the network may be autonomous (e.g., self-forming and/or self-serving). | 01-22-2015 |
20150014727 | Silicone-Grafted Core-Shell Particles, Polymer Matrix, and LED Containing Same - A silicone-grafted core-shell particle is described wherein the silicone-grafted core-shell particle comprises a core of an inorganic particle and a shell of a grafted poly(dimethylsiloxane) polymer formed from a bi-terminated poly(dimethylsiloxane) having reactive groups at each terminal end. The silicone-grafted core-shell particles may be dispersed in a polysiloxane polymer matrix and employed as an LED encapsulant. | 01-15-2015 |
20140368204 | TECHNIQUES FOR ASSESSING CONDITION OF LEDS AND POWER SUPPLY - Techniques are disclosed for assessing the conditions of LEDs and power supplies of solid state lighting systems. The techniques can be used, for example, to measure the capacitance of an output capacitor C in a switch-mode power supply (SMPS), and to measure the condition of the LEDs being driven by that power supply. In some cases, this assessment can be implemented in a lighting controller that controls the lighting system, which may be configured to simultaneously determine C and the conditions of LEDs. In one example case, the techniques can be implemented, for instance, in a micro-controller operating the lighting system. A lighting system implementing the techniques can be periodically assessed so as to provide real-time diagnostic capability. Numerous example embodiments of SMPS LED lighting systems will be apparent in light of this disclosure. | 12-18-2014 |
20140368120 | BALLAST WITH ANTI-STRIATION CIRCUIT - A ballast comprises an inverter circuit for providing an oscillating current signal for energizing the at least one lamp. The inverter circuit comprises a first switching component and a second switching component each having a collector terminal, a base terminal, and an emitter terminal. And, each switching component is configured for alternately operating between a conductive state and a non-conductive state. A first collector-emitter circuit is connected between the collector terminal and the emitter terminal of the first switching component, wherein the first collector-emitter circuit has a first resistance of zero or more Ohms. A second collector-emitter circuit is connected between the collector terminal and the emitter terminal of the second switching component, wherein the second collector-emitter circuit has a second resistance of zero or more Ohms and the first resistance and the second resistance are unequal. | 12-18-2014 |
20140361696 | LIGHTING SYSTEMS WITH UNIFORM LED BRIGHTNESS - Solid state lighting systems are disclosed for providing uniform brightness of LEDs serially connected in a string. In some embodiments, the LEDs can be powered directly from the mains such that no switch-mode power supply or the output storage elements associated therewith are needed. In some such cases, a linear regulator and switches can be used to control the current through the LEDs to provide uniform brightness. Other embodiments can be used with a switch-mode based driver topology and/or storage elements coupled in parallel with clusters of the LEDs. In any such cases, control logic (e.g., microcontroller or other suitable controller) can be used to control the switches accordingly to provide uniform brightness, and in some cases, to mitigate the implications of having no SMPS output storage element. In some embodiments, the switching pattern provided by the control logic is random, although other switching patterns can be used. | 12-11-2014 |
20140361623 | AUXILIARY POWER SUPPLY FOR LIGHTING DRIVER CIRCUITRY - Techniques for supplying auxiliary power to lighting driver circuitry are disclosed. An auxiliary power supply can be used, for example, to provide auxiliary power to a current source that drives an LED string. In some embodiments, the LED string is effectively used as a series resistor to charge a capacitor that provides the auxiliary voltage V | 12-11-2014 |
20140359373 | SYSTEMS AND METHODS TO DETECT BUS NETWORK FAULT AND TOPOLOGY - Systems for helping identify faults on a bus, as well as to determine the topology of a bus network, are disclosed. A system according to one embodiment includes a bus interface for connecting to a bus and a switch coupled to the bus interface, the switch configured to alternate between an open state and a closed state. The system is connected to the bus via the bus interface when the switch is in the closed state, and the system is disconnected from the bus via the bus interface when the switch is in the open state. | 12-04-2014 |
20140355971 | Infrared Heat Lamp Assembly - An infrared heat lamp ( | 12-04-2014 |
20140338878 | Two Piece Aluminum Heat Sink - A heat sink includes an extruded component, a cast component, and an interface layer. The extruded component includes a first aluminum material and is configured to be coupled to a solid state light source. The cast component includes a second aluminum material overmolded onto a portion of the extruded component to form the interface layer. The interface layer is formed of at least one of the first and the second aluminum materials and abuts against and couples the extruded component to the cast component. | 11-20-2014 |
20140335635 | ELECTRONIC ASSEMBLIES INCLUDING A SUBASSEMBLY FILM AND METHODS OF PRODUCING THE SAME - Described herein are electronic assemblies including a subassembly film and methods for making the same. In some embodiments, a first subassembly is formed by placing an electronic die at a die placement location on a subassembly film. A second subassembly may be formed by placing the first subassembly at a subassembly placement position on a base layer, such that electrical contacts/traces on the first film overlap with electrical contacts/traces at a subassembly connection point on the base layer. Placement of the die on the subassembly film may be performed with automatic placement machinery that has a placement accuracy that is greater than that required to place the first subassembly on the base layer. As a result, the costly and time consuming manual inspection of die placement may be avoided. | 11-13-2014 |
20140334179 | LED-Based Lamp Including Shaped Light Guide - A light guide ( | 11-13-2014 |
20140333192 | HIGH PRESSURE DISCHARGE LAMP WITH MULTIPLE ARC TUBES - A long life high pressure arc discharge lamp configuration is disclosed. In some embodiments, the lamp includes a first non-cycling high pressure arc tube having a first ignition aid and a second arc tube electrically connected in parallel to the first arc tube. A lamp envelope is provided about the first and second arc tubes. In some cases, each of the first and second arc tubes is a non-cycling high pressure sodium arc tube, and each is configured with an ignition aid strip running lengthwise down the corresponding arc tube. In some cases, the first and second arc tubes are oriented such that their respective ignition aid strips are effectively 180 degrees+/−90 degrees away from each other, or so that their respective ignition aid strips are effectively 180 degrees+/−5 degrees away from each other. In some such, the second arc tube is a low-pressure arc tube. | 11-13-2014 |
20140332825 | CIRCUITRY CONFIGURABLE BASED ON DEVICE ORIENTATION - The present disclosure is directed to circuitry configurable based on device orientation. Example circuitry may comprise at least one device location and configurable conductors. The at least one device location may include at least two conductive pads onto which a device may be populated by a manufacturing process. The configurable conductors may be coupled to each of the at least two conductive pads. The configurable conductors may be configured by adding conductive material to at least one configurable conductor or subtracting at least part of at least one configurable conductor. For example, conductive material may be added to close a space between two segments of a configurable conductor to form a conduction path. Alternatively, at least part of at least one of a plurality of configurable conductors coupled to a conductive pad may be subtracted (e.g., cut) to stop conduction in the at least one configurable conductor. | 11-13-2014 |
20140320024 | MULTIMODE COLOR TUNABLE LIGHT SOURCES - Described herein are ambient lighting devices, methods, and systems that utilize at least one multimode artificial ambient light source, a control unit, and a remote image sensor. The control unit couples to at least one artificial ambient light source and is configured to output at least one control signal to the at least one artificial ambient light source. The at least one multimode artificial ambient light source is configured to output light of varying color and color temperature in response to said at least one control signal. The remote image sensor couples to the at least one control unit and is configured to detect at least one color and intensity characteristic and output an output signal to the at least one control unit, based on said color and intensity characteristic detected. | 10-30-2014 |
20140268848 | HEADLAMP HAVING A LIGHT GUIDE ASSEMBLY - An automotive headlamp ( | 09-18-2014 |
20140265882 | SYSTEM AND METHOD FOR CONTROLLING LIGHTING - A system for controlling a light source to enhance the appearance of one or more objects within an environment illuminated by the light source. The system includes a tunable white light source to illuminate an object and a camera configured to capture one or more digital images the object and identify attributes of the object, including object color values. The system further includes a light control module configured to determine at least one optimal lighting condition for the light source based, at least in part, on the object attributes, wherein the optimal lighting condition is configured to enhance the appearance of the object illuminated by the light source while maintaining the overall appearance of light within the environment. The light control module is further configured to adjust the spectral composition of the light source based on the optimal lighting condition. | 09-18-2014 |
20140254176 | SOLID STATE LIGHTING DEVICE WITH EXTENSIBLE MOUNTING BASE - A solid state lighting device with an extensible mounting base is provided. The solid state lighting device includes a housing and a moveable extension positioned in the housing. The moveable extension is aligned along a longitudinal axis of the solid state lighting device, and includes a closed position adjacent the housing and an open position remote from the housing. A base is affixed to an external end of the moveable extension. The base connects to a corresponding socket in order to provide electrical power to the solid state lighting device. The housing also includes a mechanical actuator therein. The mechanical actuator has a first end, affixed to the moveable extension, and a second end, affixed to the housing. The mechanical actuator allows the moveable extension to change from the closed position to the open position and vice versa. | 09-11-2014 |
20140254175 | HYBRID LENS FOR SOLID STATE LIGHT SOURCE DEVICE - A hybrid lens for a solid state light source device is provided. The hybrid lens includes a first component and a second component. The first component has a first side and a second side oppositely disposed thereto. The first side is positioned facing a solid state light source. The second component is attached to the first side of the first component. The first component includes a flame retardant material, such as a glass or a filled polymer. The second component includes a non-flame retardant material, such as an unfilled polymer. | 09-11-2014 |
20140252979 | PULSE-EXCITED MERCURY-FREE LAMP SYSTEM - A pulse-excited mercury-free lamp system, and method of sustaining the emission of light emission from such a lamp, is provided. The system includes a light-transmissive envelope having an inner surface and a phosphor layer coated thereon. A discharge-sustaining gaseous mixture of a noble gas, at a low pressure, and a metal halide, is retained inside the light-transmissive envelope. An electrical system provides a plurality of pulses to the discharge-sustaining gaseous mixture, resulting in a discharge, which causes the lamp system to emit light. The emission of light is maintained by turning the discharge on during a pulse width of each pulse in the plurality of pulses and by turning the discharge off during a remainder of each period in the plurality of pulses. Particularly in systems where the metal halide is indium-based, this maintains an efficient emission of light without the use of mercury. | 09-11-2014 |
20140252970 | DYNAMIC STEP DIMMING INTERFACE - A dynamic step dimming interface is provided that allows a ballast to energize a lamp in a dim mode or a normal mode. The ballast includes a lamp controller that energizes the lamp using an oscillating current. The oscillating current is also provided to a voltage monitor, which indicates the voltage level of the oscillating current, and to a rectifier, which provides an output indicative of the oscillating current. The rectifier is responsive to user input indicating whether the dim mode or the normal mode is to be used. A processing circuit receives the voltage level from the voltage monitor and provides a mode command to the ballast, indicating the lamp mode, based on inputs received, and provides a reference voltage to a comparator. The comparator receives the rectifier output and the reference voltage, and generates a voltage indicative of a power level of the lamp for the processing circuit. | 09-11-2014 |
20140252955 | SYSTEMS AND METHODS FOR POWER SUPPLY LOAD DETECTION WITH HOT-PLUG COMPATIBILITY - Systems and methods for detecting an incorrect load and preventing powering of that load, until a load change is detected, are disclosed. An incorrect load can be removed and a newly attached valid load can be operated without requiring a reset. A power supply or driver system for a lighting system including one or more solid state light sources includes the systems and methods. The power supply or driver system includes a processor and memory arrangement configured to detect whether a load is operable or non-operable while still being responsive to a new load being attached at any time, and to prevent the system from checking the same load more than once. These may be used in conjunction with features like auto-recovery, restart after faults, and load-hot-plug capability, while perhaps simultaneously reducing cyclical flashing of light output. | 09-11-2014 |
20140252954 | SYSTEMS AND METHODS OF PREVENTING STROBING LIGHT OUTPUT - Systems and methods for preventing or otherwise reducing cyclic light output caused by failure modes are disclosed, which shut off a power supply to a lighting system susceptible to output cycling (also known as flashing, flickering, or strobing) in a non-latching fashion. A power supply and/or driver system includes a processor and memory arrangement configured to track failures and prevent cyclical behavior when detected. The processor can be implemented, for example, with an existing microcontroller already present in the power supply, or as a dedicated processor. Once a failure mode that exhibits cyclic behavior above a certain frequency is detected, the power supply can be turned off or otherwise prevented from attempting to source power to the lighting system. | 09-11-2014 |
20140247522 | SCALABLE POWER SUPPLY CIRCUIT INCLUDING PROTECTION FEATURES - A power supply circuit and method for supplying power are provided. The power supply circuit includes a front end circuit, a power factor correction circuit, and a drive circuit. The front end circuit is configured to generate a direct current voltage based on an input voltage. The front end circuit includes a first surge protection circuit. The power factor correction circuit is configured to generate a driving voltage based on the generated direct current voltage. The power factor correction circuit includes a second surge protection circuit and an over-temperature protection circuit. The drive circuit is configured to generate an output voltage for a load based on the driving voltage. The drive circuit includes a third surge protection circuit, a startup circuit, and an open-circuit protection circuit. | 09-04-2014 |
20140246992 | PRIMARY SIDE CONTROL FOR SWITCH MODE POWER SUPPLIES - Techniques are disclosed for providing a stable output voltage in switching mode power supplies (SMPS). An SMPS includes a switching converter for powering a load, a passive startup circuit for initially providing an internal voltage supply for powering switching electronics when the mains is turned on, and a feedback circuit providing the internal voltage supply once the switching converter starts switching. The SMPS also includes a decoupling circuit that decouples or otherwise isolates the gain of the passive startup circuit from the feedback circuit, so as to prevent false dynamic overvoltage protection triggers. The decoupling circuit is implemented, for instance, with the addition of two or three passive components, such as a diode and a capacitor, or a diode, a capacitor, and a resistor. Preventing false triggering of the dynamic overvoltage protection in turn provides a more stable output voltage from the SMPS. | 09-04-2014 |
20140246984 | BALLAST WITH CURRENT CONTROL CIRCUIT - A ballast configured to connect to a set of lamps to energize the set of lamps is provided. The ballast comprises an inverter circuit for generating an oscillating power signal, wherein the oscillating power signal has a frequency, and a resonant tank circuit electrically connected to the inverter circuit for receiving the oscillating power signal and therefrom providing a lamp current to the set of lamps. A resistance circuit is connected to the inverter circuit. The resistance circuit has a resistance that defines the frequency of the oscillating power signal generated by the inverter circuit. A current control circuit is connected to the resistance circuit for adjusting the resistance of the resistance circuit as a function of a number of lamps that are connected to the ballast. | 09-04-2014 |
20140246689 | LED Lamp with Quantum Dots Layer - A lighting device | 09-04-2014 |
20140232292 | ILLUMINATION TECHNIQUES AND DEVICES - Illumination techniques and related devices are disclosed. In some cases, a lighting device configured as described herein may include a front luminaire configured to emit white light and a back luminaire configured to emit colored light. The lighting device can be operatively coupled with controller circuitry programmed or otherwise configured, for example, with one or more algorithms which control the light output of the front and/or back luminaire so as to provide tunability. In some cases, device output may be controlled so as to: (1) simulate lighting conditions/patterns corresponding to the daytime/nighttime on Earth; (2) support/alter physiological processes; and/or (3) provide a specific ambient lighting for a given space. In some instances, a system of multiple such lighting devices can be provided, and in some cases, communication between constituent lighting devices may be provided. In some instances, the lighting device may be mountable as a sconce or other lighting fixture. | 08-21-2014 |
20140198500 | Replaceable Single LED Lamp for Runway Sign - A replacement lamp for an airport runway sign. Light is produced by a linear array of white-light LEDs. A cylindrical lens is mounted longitudinally adjacent to the LEDs, and collects a central portion of the light emitted from the LEDs. A pair of inclined surfaces extend from the lateral edges of the LEDs to respective lateral edges of the cylindrical lens. The inclined surfaces have a rough surface texture and reflect light diffusely. The inclined surfaces collect a peripheral portion of the light emitted from the LEDs, and direct the reflected light toward the cylindrical lens. The LEDs, cylindrical lens and inclined surfaces are all mechanically supported by a heat sink. The replacement lamp is placed into a runway sign near its top or bottom edge, and illuminates both viewing surfaces of the runway sign simultaneously without a diffuser. | 07-17-2014 |
20140198498 | Runway Sign Having a Replaceable Single LED Lamp - A two-sided airfield runway sign with direct illumination by a single LED lamp. Light is produced by a linear array of white-light LEDs. A cylindrical lens is mounted longitudinally adjacent to the LEDs, and collects a central portion of the light emitted from the LEDs. A pair of inclined surfaces extend from the lateral edges of the LEDs to respective lateral edges of the cylindrical lens. The inclined surfaces have a rough surface texture and reflect light diffusely. The inclined surfaces collect a peripheral portion of the light emitted from the LEDs, and direct the reflected light toward the cylindrical lens. The LEDs, cylindrical lens and inclined surfaces are all mechanically supported by a heat sink. The replacement lamp is placed into a runway sign near its top or bottom edge, and illuminates both viewing surfaces of the runway sign simultaneously without a diffuser. | 07-17-2014 |
20140198487 | LED Lamp with Asymmetric Cylindrical Lens for Poster Display Case - A replacement lamp for a cinema poster display case. Light is produced by a linear array of white-light LEDs. In one example, a cylindrical lens is mounted longitudinally adjacent to the LEDs, and collects a central portion of the light emitted from the LEDs. In this example, a pair of inclined surfaces extend from the lateral edges of the LEDs to respective lateral edges of the cylindrical lens. The inclined surfaces have a rough surface texture and reflect light diffusely. The inclined surfaces collect a peripheral portion of the light emitted from the LEDs, and direct the reflected light toward the cylindrical lens. In this example, the LEDs, cylindrical lens and inclined surfaces are all mechanically supported by a heat sink. The cylindrical lens may include an asymmetry that directs more light toward the front face of the display case than toward the rear face. | 07-17-2014 |
20140197736 | FILAMENT DETECTION CIRCUIT - A ballast including a driver circuit, a filament heating circuit, a current detector circuit, and a control circuit is provided. The driver circuit generates an oscillating current signal. The filament heating circuit heats filaments of a lamp connected to the ballast and includes a heating transformer with primary and secondary windings and a switching circuit. The primary winding is connected to the driver circuit and the switching circuit. The secondary winding is connected to the primary winding and may be connected to the lamp. The duty cycle of the switching circuit controls current provided from the driver circuit to the primary winding to heat the lamp. The current detector circuit is connected to the switching circuit and detects a parameter of the current in the primary winding, which indicates the number of lamp filaments connected to the ballast. The control circuit controls the driver circuit based on the detected parameter. | 07-17-2014 |
20140196281 | Method of Retrofitting a Runway Sign with a Single LED Lamp - A method of retrofitting an existing airfield runway sign with a single LED lamp. Light is produced by a linear array of white-light LEDs. A cylindrical lens is mounted longitudinally adjacent to the LEDs, and collects a central portion of the light emitted from the LEDs. A pair of inclined surfaces extend from the lateral edges of the LEDs to respective lateral edges of the cylindrical lens. The inclined surfaces have a rough surface texture and reflect light diffusely. The inclined surfaces collect a peripheral portion of the light emitted from the LEDs, and direct the reflected light toward the cylindrical lens. The LEDs, cylindrical lens and inclined surfaces are all mechanically supported by a heat sink. The replacement lamp is placed into a runway sign near its top or bottom edge, and illuminates both viewing surfaces of the runway sign simultaneously without a diffuser. | 07-17-2014 |
20140185291 | PARTIALLY RECESSED LUMINAIRE - A luminaire includes a fixture to be generally received in a recess of a support surface. A plurality of light engines are disposed within the fixture. The light engines each have at least one light source. A heat flange disposed about a distal end region of said fixture. The heat flange having a hollow, generally frustum shape with a cross-section extending generally radially outwardly beyond said fixture and extending away from said distal end region of said fixture. The hollow shape provides a flange cavity for housing of driver or other components for the light engines. | 07-03-2014 |
20140159608 | DRIVER CIRCUIT FOR DIMMABLE SOLID STATE LIGHT SOURCES WITH FILTERING AND PROTECTIVE ISOLATION - A driver circuit for a lamp assembly including one or more solid state light sources is provided. The driver circuit includes filtering and power factor correction with protective isolation. The driver circuit includes a transformer with electrically isolated windings and a power factor correction circuit that receives no feedback from a secondary winding of the transformer. | 06-12-2014 |
20140126239 | ILLUMINATION TECHNIQUES AND DEVICES - Techniques are disclosed for extracting light from within a lightguide by providing therein a plurality of internal light extraction features. A broad range of internal light extraction feature configurations (e.g., geometries/shapes, materials, refractive index changes, etc.) can be provided, and a variety of processes/techniques (e.g., 3-D printing, laser cutting/etching, injection molding, embossment, layer stacking, extrusion, etc.) can be used to do so. The features can be configured to achieve any desired set of photometric performance criteria (e.g., single/double-sided emission, optical efficiency, energy efficiency, spatial/angular luminance distribution, intensity gradients, etc.) for a given lightguide-based fixture/device. In some cases, internal and surficial light extraction features can be used together to extract light. Also, a wide variety of lighting fixtures/devices (e.g., panels, bulbs, tubes, rings, containers, three-dimensional structures/sculptures, multi-layered, multi-sectioned, etc.) can be produced using the disclosed techniques. In some cases, transparent/semi-transparent devices can be produced. | 05-08-2014 |
20140126208 | MODULAR LIGHTING TECHNIQUES - Techniques and architecture are disclosed for providing a modular lighting system/luminaire having an integrated heat sink assembly. In some cases, the system/luminaire may comprise a plurality of individual modular light sources which have been operatively coupled with one another. In some instances, a modular light source may include one or more light engines (e.g., light emitting diodes or LEDs) which have been operatively coupled with an individual heat sink module. When assembled, the plurality of heat sink modules may define, in the aggregate, a plurality of heat conduits which dissipate thermal energy from the light engines by convective heat transfer. Also, in some cases, the heat sink modules may be electrically isolated from one another, allowing for the heat sink assembly itself, in part or in whole, to function as part of the desired circuit. | 05-08-2014 |
20140111089 | LATCHING CIRCUIT FOR BALLAST - A ballast including a latching circuit is provided. The ballast includes an inverter circuit for providing an oscillating voltage signal to energize a lamp set, a control circuit for controlling operation of the inverter circuit, and a voltage supply circuit for providing a supply voltage to the control circuit. The ballast also includes a fault detection circuit for detecting a fault condition and a latching circuit connected to the fault detection circuit. The latching circuit is configured to drain the supply voltage and thereby disable the control circuit so that operation of the inverter circuit is discontinued during a fault condition. | 04-24-2014 |
20140110733 | ULTRAVIOLET REFLECTIVE SILICONE COMPOSITIONS, REFLECTORS, AND LIGHT SOURCES INCORPORATING THE SAME - Disclosed herein are polysiloxane compositions that include a first polysiloxane and a second polysiloxane. The first and second polysiloxanes may be immiscible, and may exhibit differing refractive indices. The polysiloxane compositions may further include a curing agent and a catalyst. In some embodiments, the polysiloxane compositions significantly reflect light in at least the ultraviolet region of the electromagnetic spectrum. Reflectors and light emitting diode sources including the polysiloxane compositions are also disclosed. | 04-24-2014 |
20140098555 | Headlamp Having an Integrated Low and High Beam Assembly - An automotive headlamp ( | 04-10-2014 |
20140097761 | SOLID STATE LIGHTING DEVICE AND DRIVER CONFIGURED FOR FAILURE DETECTION AND RECOVERY - Systems and method for detecting failure in solid state light sources and recovering from the failure are provided. A light engine including a controller circuit and strings of solid state light sources emits light in response to drive current provided by a driver circuit. The controller circuit monitors an output voltage of the driver circuit, and detects a failure of one of the solid state light sources. The failure is associated with a change in the output voltage of the driver circuit. The controller circuit then transmits a first signal to the driver circuit in response to detecting a failure, and the driver circuit is configured to decrease the drive current in response to the first signal. | 04-10-2014 |
20140093002 | PULSE-BASED BINARY COMMUNICATION - Systems and methods for pulse-based binary communication are provided. An example system may include a transmitting device and a receiving device. The transmitting device may be configured to generate a supply voltage for use in operating the receiving device and to cause at least one pulse to occur in the supply voltage, the at least one pulse being based on a binary value. The at least one pulse may comprise, for example, a temporary change in the supply voltage. The receiving device may be configured to receive the supply voltage from the transmitting device, to detect the at least one pulse in the supply voltage and to determine the binary value based on the at least one pulse. The receiving device may then perform an action based on the binary value. | 04-03-2014 |
20140092619 | LED Low Profile Linear Front Fog Module - A fog lamp for a vehicle is disclosed. Light leaving an LED is collected by a refractive/TIR lens. The central portion of the refractive/TIR lens is purely refractive, while the peripheral portion of the lens includes a total internal reflection off an exterior surface of the lens. The refractive/TIR lens converges the light to a focus at or near a laterally-elongated aperture in a light baffle. Light exiting the aperture diverges and passes through an anamorphic lens, which reduces the angular extent of the beam in the vertical direction and increases the angular extent in the lateral direction. The full fog lamp may include multiple pairs of LEDs and respective refractive/TIR lenses, all arranged coplanar, parallel and laterally adjacent to each other. The LED/lens pairs may all direct light through a single light baffle and through a single anamorphic lens. | 04-03-2014 |
20140092594 | VIRTUAL SURFACE INDIRECT RADIATING LUMINAIRE - A luminaire is provided, that includes a housing and a plurality of solid state light sources connected thereto. The housing has a top side, two lateral sides, a protrusion in the top side, and two light source mounting surfaces. The top side is diffusely reflecting and has opposing lateral edges and a center. The lateral sides are specularly reflecting and extend generally downward from the opposing lateral edges of the top side. Each has a respective bottom edge. The light source mounting surfaces extend laterally inward from the respective bottom edges. The plurality of solid state light sources is disposed along the pair of light source mounting surfaces proximate the pair of specularly reflecting lateral sides. These emit light, which travels upward to the top side and is also specuarly reflected by the lateral sides toward the top side. The top side diffusely reflects the light out of the luminaire. | 04-03-2014 |
20140091732 | TRANSIENT POWER COMMUNICATION - A power supply system providing communication from a master module to at least one slave module via transients, to alter operation of a load, is provided. The master module output a supply voltage that is either a normal supply voltage or a reduced supply voltage. The outputted supply voltage depends on input corresponding to a communication to be sent to the slave module to alter operation of the load of the slave module. The slave module receives the supply voltage and interprets the received supply voltage, which may vary between the normal and reduced supply voltages, to determine what the communication from the master module is. The slave module then uses information from the communication to appropriately alter operation of its load. | 04-03-2014 |
20140091724 | SOLID STATE LIGHT SOURCE DRIVER ESTABLISHING BUCK OR BOOST OPERATION - A solid state light source driver circuit that operates in either a buck convertor or a boost convertor configuration is provided. The driver circuit includes a controller, a boost switch circuit and a buck switch circuit, each coupled to the controller, and a feedback circuit, coupled to the light source. The feedback circuit provides feedback to the controller, representing a DC output of the driver circuit. The controller controls the boost switch circuit and the buck switch circuit in response to the feedback signal, to regulate current to the light source. The controller places the driver circuit in its boost converter configuration when the DC output is less than a rectified AC voltage coupled to the driver circuit at an input node. The controller places the driver circuit in its buck converter configuration when the DC output is greater than the rectified AC voltage at the input node. | 04-03-2014 |
20140091699 | MODIFIED SPECTRUM LAMP - There is herein described a lamp having a light-transmissive envelope, a tungsten-halogen capsule and a coating disposed on the surface of the light-transmissive envelope or doped in the light-transmissive material. The light-transmissive envelope may comprise a light-transmissive material. The tungsten-halogen capsule can be positioned inside the light-transmissive envelope. | 04-03-2014 |
20140085924 | EDGE-LIT LIGHT PANEL - An edge-lit light panel is disclosed, which includes a generally planar, transparent light guide. Light, such as from one or more solid state light source arrays, is coupled into the light guide through its lateral edge, and propagates generally laterally within the light guide via total internal reflection. A diffuser is attached to the front or rear face of the light guide, such as by lamination. The diffuser may have a refractive index matched to that of the light guide. The light guide may have one or more concave features on its lateral edge to reduce reflection losses at high angles of incidence. The concave features may include a single, one-dimensional groove that includes all the solid state light sources along a particular straight edge of the light panel, or may include a series of concave dimples, with one dimple for each solid state light source. | 03-27-2014 |
20140077704 | FAULT CONDITION OF DETECTION CIRCUIT - A ballast comprises an inverter having a transformer comprising a core, a primary winding, and a secondary winding for connecting to a lamp and providing voltage thereto. The ballast includes a fault condition detection circuit connected to the inverter for disabling the inverter to discontinue energization of the lamp when a fault condition occurs. The fault condition detection circuit comprises an other primary winding wound on the core of the transformer for receiving a voltage signal proportional to a voltage across the secondary winding, a voltage blocking circuit connected to the other primary winding for receiving the voltage signal from the other primary winding, and a capacitor connected between the voltage blocking circuit and ground potential. The voltage blocking circuit is configured to selectively conduct and block the received voltage signal as a function of the frequency of the received voltage signal. | 03-20-2014 |
20140071688 | THERMOSYPHON LIGHT ENGINE AND LUMINAIRE INCLUDING SAME - A thermosyphon light engine and luminaire including the same are provided. The light engine includes a condenser, an evaporation chamber, and a connecting element therebetween. The condenser returns a gaseous substance located therein to a liquid substance. The evaporation chamber includes a solid state light source, a working liquid, and an optical element that beam shapes light emitted by the at least one solid state light source. The solid state light source is immersed in the working liquid, such that heat generated by the solid state light source changes the working liquid into a gaseous substance. The gaseous substance travels through the connecting element to the condenser, which returns the gaseous substance to a liquid substance. The liquid substance then travels through the connecting element back to the evaporation chamber. | 03-13-2014 |
20140064660 | LIGHTGUIDE DESIGN TECHNIQUES - Techniques are disclosed for obtaining a desired luminance and/or intensity distribution from any lighting fixture that is illuminated by a lightguide. The techniques can be used, for instance, to design a non-uniform surface texture (e.g., of light extraction features) for a lightguide, wherein the surface texture achieves a desired uniform or an intentionally non-uniform luminance distribution for a given lightguide shape/geometry, dimensions, and/or composition. In some embodiments, an iteration algorithm with illuminance distribution feedback is utilized to design a non-uniform surface texture (e.g., geometry, dimensions, quantity and/or spatial distribution of light extraction features) to achieve the target luminance distribution for a given lighting application. | 03-06-2014 |
20140063804 | MODULAR MULTICHANNEL CONNECTOR SYSTEM AND METHOD - Modular multichannel light sources connector systems and methods are provided. A lighting assembly includes substrates, each with a respective plurality of ports and conductive path configurations. Each path configuration includes a plurality of conductive paths between the respective plurality of ports. At least two conductive path configurations are the same. A connector couples one of a plurality of first ports on a first substrate to one of a plurality of second ports on a second substrate. A multichannel power supply's outputs are each coupled to an associated conductive path on the first substrate. A first light source is coupled to two conductive paths on the first substrate, and to a first output. A second light source is coupled to two conductive paths on the second substrate, corresponding to the conductive paths on the first substrate, and to a second output, different from the first output. | 03-06-2014 |
20140062314 | CURRENT SHARING CIRCUIT FOR LED LIGHTING - Techniques and corresponding circuitry are disclosed for providing active current sharing in lighting applications. The techniques can be used, for instance, to minimize or otherwise reduce current differences between parallel LED strings of a given lighting apparatus while further minimizing or otherwise reducing power dissipation. In some embodiments, an active current sharing circuit is provided that includes a series-pass sub-circuit, such as a transistor or transistor circuit (or other active series-pass circuit), for each LED string. In addition, each string has a current sense sub-circuit for sensing current of that string. A monitor and control sub-circuit operates in conjunction with the series-pass sub-circuit to maintain the sensed current equal to a common reference level. In some embodiments, the common reference level is controlled to maintain the lowest series-pass element voltage close to or equal to zero volts (−0.25VDC to +0.25VDC). | 03-06-2014 |
20140056008 | Non-Uniform Multi-Facted Reflector For Rear Combination Lamp Providing Sparkle Effect - A rear combination lamp for a vehicle is disclosed, in which facets on a reflective surface impart relatively large angular deviations to their respective reflected beams. Reflected light from each facet is only visible over a particular angular range. The angular ranges for all facets overlap only in a predetermined manner, so that at a given viewing angle, light from only particular facets is visible. The appearance of the rear combination lamp varies as a function of viewing direction. As a viewing angle changes, light from certain facets becomes visible, and light from other facets becomes invisible. This changing subset of which facet reflections are visible produces a sparkling or twinkling effect from the rear combination lamp. In some designs, the sparkling can take on a pattern that moves across the rear combination lamp, as the viewing angle changes. | 02-27-2014 |
20140049159 | MULTIPLE STRIKE BALLAST WITH LAMP PROTECTION FOR ELECTRODELESS LAMP - A multi-strike ballast to ignite an electrodeless lamp is disclosed, and includes an inverter circuit, a protection circuit, and a controller. The inverter circuit, upon activation, sends an ignition pulse to the lamp. The inverter circuit shuts down upon receiving a deactivation signal, and activates upon receiving an activation signal, triggering another ignition pulse. The protection circuit senses a change in a voltage associated with the lamp. The sensed changed may indicate that the lamp has not yet ignited or that the lamp is broken. The controller receives the sensed change in voltage and, in response, sends a deactivation signal to the inverter circuit. The controller waits a predetermined time and then sends an activation signal to the inverter circuit. The controller repeats until a change in voltage associated with the lamp is not sensed, or until a predefined number of repeats occur, providing multiple ignition pulses to the lamp. | 02-20-2014 |
20140036503 | DROP CEILING LIGHTING TECHNIQUES - Techniques and architecture are disclosed for integrating lighting into a dropped/suspended ceiling. In some cases, a light source (e.g., light emitting diodes, laser diodes, etc) can be operatively coupled with the support grid/matrix of a drop ceiling. In some instances, the light source can be mounted on the underside of a drop ceiling T-frame and configured to emit/direct light sideways and/or downward from the ceiling. In some other instances, the light source can be mounted on an interior portion of a T-frame and configured to emit/direct light: (1) into an adjacent lightguide configured to direct the light downward from the ceiling; and/or (2) onto an adjacent reflective ceiling tile configured to direct the light downward from the ceiling. Some such lighting fixtures can be configured to be substituted for a standard or custom drop ceiling tile. | 02-06-2014 |
20140035455 | LED Lamp With A High Color Rendering Index - LED lamps having a high color rendering index are disclosed. In some embodiments, such lamps also exhibit high lumen maintenance and low color drift during lamp warm-up. The lamps may include, for example, a light emitting diode (LED) kernel having a mixture of red and blue LEDs, and a converter including a red phosphor in an amount ranging from greater than 0 to about 10 weight % of a total phosphor content of the converter. | 02-06-2014 |
20140029283 | LED Retrofit Vehicle Tail Lamp - A replacement vehicular lamp assembly ( | 01-30-2014 |
20140028211 | FLYBACK AC-TO-DC CONVERTER - Techniques and corresponding circuitry and drivers are disclosed for improving power factor (PF) and total harmonic distortion (THD) of a flyback power factor correction (PFC) topology operating in transition-mode. In one or more embodiments, the PF and THD are improved by correcting the on-time of the switching element of the flyback PFC topology to actively shape the wave of the PFC input current. In some embodiments, the on-time is corrected using a phase-lock-loop module that synchronizes with the rectified input line voltage signal and a output regulator module that corrects the switch on-time. The control may be implemented using a digital or an analog controller. | 01-30-2014 |
20140022782 | Automotive Lamp and Socket Apparatus with Pigtail Connector - A lamp apparatus ( | 01-23-2014 |
20140022761 | Luminescent Converter and LED Light Source Containing Same - A luminescent converter for a light emitting diode is herein described. The converter comprises a translucent substrate and a thin-film layer deposited on the substrate wherein the thin-film layer is comprised of a phosphor. The translucent substrate may further comprise a solid, ceramic phosphor such as YAG:Ce. | 01-23-2014 |
20140016342 | LED Headlight With One or More Stepped Upward-Facing Reflectors - A headlight is disclosed, having separate low-beam and high beam housings. The high-beam housing includes four planar inward-facing reflectors, in the shape of a pyramid, with the high-beam LED array at the apex and a plano-convex high-beam lens at the base. The low-beam housing includes three planar inward-facing reflectors along the top and lateral sides, similarly arranged as three sides of a pyramid. The low-beam housing has one or more planar, horizontal upward-facing reflectors, disposed below the longitudinal axis of the low-beam housing. Light propagating downward from the low-beam LED array directly strikes either the incident face of the low-beam lens or exactly one upward-facing reflector. When viewed from the front of the low-beam housing, the upward-facing reflectors resemble steps that descend from a lower edge of the low-beam LED array. | 01-16-2014 |
20140001971 | DIM MODE START FOR ELECTRODELESS LAMP BALLAST | 01-02-2014 |
20140001156 | Method for Etching a Ceramic Phosphor Converter | 01-02-2014 |
20130335961 | LAMP WITH APPEARANCE DIFFERENTIATED FROM ITS MAIN ILLUMINATION - A lamp including a two-sided source plate, a plurality of light sources, a lens, a diffuser plate, and a driver insulator is disclosed. One set of the light sources generates white light and is attached to one side of the source plate. Another set of the light sources generates colored light and is attached to the source plate's other side. The lens encapsulates the white light-generating set, and redirects that white light. The driver insulator and the diffuser plate are each in contact with the source plate's other side. The driver insulator, diffuser plate, and that side of the source plate define a light box region that contains the colored light-generating set of light sources. The driver insulator acts as a reflector, and the diffuser plate acts as a diffuser, such that colored light is dispersed from the light box region through the diffuser plate. | 12-19-2013 |
20130315575 | CONCENTRIC COIL INFRARED EMITTER LAMP - An infrared emitter lamp ( | 11-28-2013 |
20130313603 | Wavelength Converter for an LED, Method of Making, and LED Containing Same - A wavelength converter for an LED is described that comprises a substrate of monocrystalline garnet having a cubic crystal structure, a first lattice parameter and an oriented crystal face. An epitaxial layer is formed directly on the oriented crystal face of the substrate. The layer is comprised of a monocrystalline garnet phosphor having a cubic crystal structure and a second lattice parameter that is different from the first lattice parameter wherein the difference between the first lattice parameter and the second lattice parameter results in a lattice mismatch within a range of ±15%. The strain induced in the phosphor layer by the lattice mismatch shifts the emission of the phosphor to longer wavelengths when a tensile strain is induced and to shorter wavelengths when a compressive strain is induced. Preferably, the wavelength converter is mounted on the light emitting surface of a blue LED to produce an LED light source. | 11-28-2013 |
20130308328 | Headlamp Featuring Both Low-Beam and High-Beam Outputs and Devoid of Moving Parts - A headlight produces low-beam and high-beam outputs without requiring moving parts. Low-beam LED array ( | 11-21-2013 |
20130307422 | DRIVER CIRCUIT FOR SOLID STATE LIGHT SOURCES - A driver circuit for a light source including one or more solid state light sources, a luminaire including the same, and a method of so driving the solid state light sources are provided. The driver circuit includes a rectifier circuit that receives an alternating current (AC) input voltage and provides a rectified AC voltage. The driver circuit also includes a switching converter circuit coupled to the light source. The switching converter circuit provides a direct current (DC) output to the light source in response to the rectified AC voltage. The driver circuit also includes a mixing circuit, coupled to the light source, to switch current through at least one solid state light source of the light source in response to each of a plurality of consecutive half-waves of the rectified AC voltage. | 11-21-2013 |
20130293151 | DIMMABLE MULTICHANNEL DRIVER FOR SOLID STATE LIGHT SOURCES - Systems and methods for driving solid state light sources are provided. A first drive circuit is configured to generate a drive current to cause a first solid state light source load and a second solid state light source load to illuminate. A feedback and control circuit is configured to receive feedback from the first solid state light source load and to control the drive current through the first solid state light source load based on the feedback. A second drive circuit is configured to control the drive current through the second solid state light source load. A master controller is configured to provide a first input to the feedback and control circuit to control the drive current through the first solid state light source load and a second input to the second drive circuit to control the drive current through the second solid state light source load. | 11-07-2013 |
20130293130 | High Efficiency 3-Way Halogen Lamp With Diode and Sidac Driven Single Filament Lamp - A 3-way halogen lamp selectively generates different first, second, and third light levels. A first terminal on the lamp base receives a first input voltage waveform when the first terminal is connected to a power source. A second terminal on the lamp base receives a second input voltage waveform when the second terminal is connected to the power source. A rectifier circuit is connected to the first terminal for receiving the first input voltage waveform and rectifying the first input voltage waveform to generate a first load voltage waveform. A switching circuit is connected to the second terminal for receiving the second input voltage waveform and phase clipping the second input voltage waveform to generate a second load voltage waveform. A single filament is connected to the rectifier circuit and the switching circuit, and is housed in a halogen capsule attached to the lamp base. | 11-07-2013 |
20130293103 | High Efficiency 3-Way Halogen Lamp With Single Filament Microprocessor Driven Light Sources - A 3-way halogen lamp selectively generates a first light level, second light level, and third light level based on whether a first terminal on the lamp base and a second terminal on the lamp base are connected to a power supply. A controller housed entirely within the based detects whether the first and second terminals are connected to the power supply, and generates a control signal as a function thereof. A switching circuit housed entirely within the base is operated by the control signal to provide a voltage load signal having a particular RMS voltage. A single filament halogen capsule is attached to the base and connected to the switching circuit for receiving the voltage load signal and generating the first light level, second light level, and third light level when the voltage signal has a first RMS voltage, a second RMS voltage, and a third RMS voltage, respectively. | 11-07-2013 |
20130271018 | Color Correlated Temperature Correction for LED Strings - An array of LEDs having output light in different wavelength ranges. A control circuit connected to the array includes a temperature variable resistance component and a switch selectively connecting the component to the array. The control circuit limits the current applied to at least some of the LEDs during initial energization of the LEDs prior to steady-state operation of the LEDs. Variations over time of a color correlated temperature (CCT) of output light of the energized array are reduced. | 10-17-2013 |
20130244354 | METHODS FOR PRODUCING AND PLACING WAVELENGTH CONVERTING STRUCTURES - Methods for producing and placing wavelength converting structures for use in a solid state lighting assembly are disclosed. The wavelength converting structures may take the form of thin film converters including a substrate and one or more thin films of wavelength conversion material. | 09-19-2013 |
20130242557 | Heat Sink Assembly and Light - A heat sink for a light emitting diode (LED) lamp assembly includes a core region having a lower end, an upper end, a first region configured to receive an electrical connector, a second region configured to receive at least one LED, and a plurality of longitudinal vanes extending outwardly from the core region, and an upper thermal ring intersecting with and supported by the vanes. The heat sink further includes webs formed between adjacent pairs of the longitudinal vanes, the webs collectively defining an auxiliary thermal ring, the auxiliary thermal ring substantially circumferentially surrounding in spaced relation the core region and disposed, as viewed in the longitudinal direction, between the upper thermal ring and the lower rim. Each of the longitudinal vanes defines a respective thermal notch formed on a vane surface facing an adjacent longitudinal vane, the thermal notch being in confronting relationship to a respective air low aperture. | 09-19-2013 |
20130234617 | CURRENT CONTROL SYSTEM - A current control system, and method for controlling current, and a lighting system including the same, are provided. The current control system includes front end circuitry to receive an input voltage and provide a regulated DC voltage to current source circuitry via a first input voltage terminal. Dimming interface circuitry provides a pulse width modulation signal to conversion circuitry, which uses the pulse width modulation signal to generate an analog voltage. The conversion circuitry sends the analog voltage to the current source circuitry via a second input voltage terminal. The current source circuitry uses the regulated DC voltage and the analog voltage to create an output current. The output current drives a load, which, in the lighting system, is one or more solid state light sources. | 09-12-2013 |
20130229790 | THERMAL MANAGEMENT SOLUTION FOR CASE CORNER LIGHTING SYSTEM - A thermal management system for a display case having a corner in which a lighting system is located is provided. The lighting system includes a reflector and a light source that generates heat and is mounted with the reflector. A lighting system support is positioned in the corner of the display case and is associated with the lighting system. A mullion is positioned between the lighting system support and the lighting system. The mullion maintains a desired relative position between the lighting system support and the lighting system. A contactor is located between the lighting system support and the lighting system, and provides minimal thermal conduction between the lighting system support and the lighting system. The contactor thus reduces heat transfer from the heat-generating light source to the lighting system support, thereby reducing an amount of heat transferred to the corner of the display case. | 09-05-2013 |
20130229784 | Phosphor Sheet Having Tunable Color Temperature - A white-light emitter is disclosed, in which light from blue light-emitting diodes strikes an active area of a phosphor sheet. The active area absorbs a portion of the blue light and emits phosphor light in response to the absorbed blue light. The emitter includes a stretcher that controllably stretches the active area of the phosphor sheet. The white light output spectrum of the active area has a characteristic color temperature that increases as the phosphor sheet is stretched, and decreases as the phosphor sheet contracts. As the phosphor sheet is stretched, the thickness of the active area decreases, the received blue light encounters fewer phosphor particles within the active area, the absorbed portion of the blue light decreases, the emitted phosphor light decreases, and the active area has a white light output spectrum that becomes weighted more heavily toward the blue light and less heavily toward the phosphor light. | 09-05-2013 |
20130228800 | White-Light Emitter Having a Molded Phosphor Sheet and Method of Making Same - A white-light emitter is disclosed, in which a silicone sheet is laminated between a pair of optically clear plastic sheets. The silicone sheet lacks the ability to retain its shape, while the three sheets, when sealed together, can retain a shape. The silicone sheet includes at least one phosphor, with a phosphor concentration between two percent and ten percent. The silicone sheet may be produced by molding. Compared to comparable silicone parts made by extrusion, the molded parts may show less part-to-part variation in color temperature, may be run in significantly smaller batches or as one-offs, and may allow the silicone and phosphor material to be mixed by hand or with a relatively simple mixing machine. In some cases, the sheets are sealed together at their perimeters and include a margin around the phosphor sheet. In some cases, the phosphor sheet includes a mixture of different phosphors. | 09-05-2013 |
20130215635 | AUTOMOTIVE HEADLAMP HAVING A BEAM CHANGING ASSEMBLY - An automotive headlamp ( | 08-22-2013 |
20130214703 | MULTIPLEXER CIRCUIT FOR DUAL THERMISTOR OPERATION USING A SINGLE LINE COUPLING - A time-multiplexed thermal sensing circuit is provided for control and sensing of two thermistors over a single line electrical coupling. The circuit may include a first diode that selectively couples or isolates a first thermistor from a sense node based on the polarity of an applied voltage to the sense node. The circuit may further include a second diode that selectively couples or isolates a second thermistor from the sense node based on the polarity of the applied voltage to the sense node such that only of the thermistors is coupled to the sense node at any time. | 08-22-2013 |
20130214118 | TORSION-BASED LUMINAIRE SUSPENSION MECHANISM - A luminaire suspension mechanism is provided. The mechanism includes two arms, two friction elements, and a compression element. Each arm includes three segments and two connection points. For each arm, a first segment attaches to a second segment at a connection point, forming a first angle, while the second segment attaches to a third segment at another connection point, forming a second angle. Each friction element is connected to a respective arm's third segment. Each arm's first segment is compressably attached to the compression element, such that a force applied to at least one of the arm-friction element pairs results in the compression element and that at least one pair exerting a suspending force that suspends a luminaire to which the luminaire suspension mechanism is attached within a cavity. The compression element may be a torsion spring, and the angles formed by the arm segments may be obtuse. | 08-22-2013 |
20130196564 | ENERGY SAVING GAS DISCHARGE LAMP INCLUDING A XENON-BASED GASEOUS MIXTURE - An energy saving gas discharge lamp, and method of making same, is provided. The gas discharge lamp includes a light-transmissive envelope, and an electrode within the light-transmissive envelope to provide a discharge. A light scattering reflective layer is disposed on an inner surface of the light-transmissive envelope. A phosphor layer is coated on the light scattering reflective layer. A discharge-sustaining gaseous mixture is retained inside the light-transmissive envelope. The discharge-sustaining gaseous mixture includes more than | 08-01-2013 |
20130181627 | DIMMABLE INSTANT START BALLAST - A ballast for dimming a lamp is provided. The ballast includes an inverter circuit for providing a lamp current for energizing the lamp and a dim interface for receiving an input indicative of a selected lighting level. A control circuit is connected to the dim interface for generating a pulse-width-modulated signal having a duty cycle corresponding to the selected lighting level. A switching network is connected to the control circuit for receiving the pulse-width-modulated signal. The switching network operates between a conductive state and a non-conductive state as a function of the pulse-width-modulated signal. An impedance device is connected across the switching network and is configured for connecting in series with the lamp so that the impedance device receives the lamp current when the switching network is operating in the non-conductive state and the lamp current bypasses the capacitor when the switching network is operating in the conductive state. | 07-18-2013 |
20130175939 | BALLAST WITH AN ARC QUENCHING CIRCUIT - An arc detection circuit that detects an occurrence of arcing between ballast and a lamp is provided. A transformer has a primary side connected between the ballast and the lamp to receive lamp current and conduct the lamp current from the ballast to the lamp during normal operation. A secondary side of the transformer produces a transformer voltage as a function of the lamp current received by the primary side. The produced transformer voltage is less than a threshold value during normal operation and greater than the threshold value during an occurrence of arcing between the ballast and the lamp. The arc detection circuit reduces the produced transformer voltage and provides it to the ballast so as to shut down the ballast operation. | 07-11-2013 |
20130169162 | BALLAST CIRCUIT FOR LED-BASED LAMP INCLUDING POWER FACTOR CORRECTION WITH PROTECTIVE ISOLATION - A ballast circuit for a light emitting diode (LED) based lamp including power factor correction with protective isolation. The circuit includes a transformer with electrically isolated windings and a power factor correction circuit that receives no feedback from a secondary winding side of the transformer. An LED-based lamp assembly and a method of driving an LED-based light source are also provided. | 07-04-2013 |
20130168647 | Organic Lighting Device and Lighting Equipment - An organic luminous means and an illumination device comprising such a luminous means are specified. An optical display apparatus, emergency lighting, motor vehicle interior lighting, an item of furniture, a construction material, a glazing and a display comprising such a luminous means and, respectively, comprising an illumination device having such a luminous means are furthermore specified. | 07-04-2013 |
20130163245 | RETROFIT-STYLE LAMP AND FIXTURE, EACH INCLUDING A ONE-DIMENSIONAL LINEAR BATWING LENS - A retrofit-style lamp is disclosed. The retrofit-style lamp includes a plurality of light sources, and a one-dimensional linear batwing lens. The one-dimensional linear batwing lens beam shapes light emitted by at least two light sources of the plurality of light sources. The retrofit-style lamp also includes a housing including the plurality of light sources, and attached to the one-dimensional linear batwing lens. The combination of housing and lens is then itself fitted with endcaps, including electrical connectors, for placement within a fixture, such as within an existing conventional fluorescent tube fixture located within a storage structure, for example a refrigeration case. Alternatively, the plurality of light sources, the one-dimensional linear batwing lens, and the housing may be formed, along with a power supply, as a standalone retrofit fixture for use in enclosed storage structures, such as refrigeration cases, where the retrofit fixture replaces a conventional fluorescent fixture. | 06-27-2013 |
20130155699 | THERMAL TRIM FOR LUMINAIRE - A luminaire with a thermal pathway to reduce the junction temperature of the luminaire's light source, and methods for so doing, are disclosed. The luminaire includes a can, a light engine, and a trim, that define a substantially continuous thermal pathway from the light engine to a surrounding environment. The can defines a can cavity and includes a can end region. The light engine is within the can cavity and includes a light source and a heat sink, including a heat sink end region, coupled thereto. The trim is at least partially disposed within the can cavity and includes a first trim end region coupled to the heat sink end region and a second trim end region coupled to the can end region. Thermal interface material may be located between: the heat sink and the trim, the trim and the can, and/or the heat sink and the light source. | 06-20-2013 |
20130141923 | LUMINAIRE ADAPTER WITH TOMBSTONE COVER - A luminaire adapter is provided. The luminaire adapter includes a tombstone cover and a light source bracket. The tombstone cover includes a housing that defines a slot opening to accept a tombstone socket and a pair of snap connectors. The light source bracket includes a top portion and a bottom portion. The top portion and the bottom portion are configured to connect. The bottom portion includes a pair of snap receivers configured to receive the pair of snap connectors of the tombstone cover. The top portion and the bottom portion define an opening to receive a luminaire. | 06-06-2013 |
20130127355 | STARTING CIRCUIT FOR BUCK CONVERTER - A ballast to energize a lamp is provided. The ballast comprises a buck converter connected to an inverter via a switching component. The buck converter includes a transistor, a capacitor, a diode, and an inductor. The switching component has a predetermined breakover voltage value and is configured to provide a start up signal to the inverter when voltage at the switching component increases to the predetermined breakover voltage value. A control circuit is configured to monitor the voltage at the switching component while the voltage at the switching component increases to the predetermined breakover voltage, and is configured to generate a gate drive pulse at a gate terminal of the transistor when the voltage at the switching component reaches a predetermined voltage that is less than the breakover voltage of the switching component. | 05-23-2013 |
20130120238 | LIGHT CONTROL METHOD AND LIGHTING DEVICE USING THE SAME - There is herein described a light output control method for a controlling a lighting device by a motion of an object near an environment, the lighting device comprising a video sensor and a light-emitting unit, the light output control method comprising steps of emitting an infrared light onto at least a part of the object and at least a part of the environment, collecting the infrared light reflected by at least the part of the object and at least the part the environment as a two-dimensional depth data sequence of the video sensor, computing the motion of the object by utilizing the two-dimensional depth data sequence, and controlling the light-emitting unit to change an attribute of the output light if the motion of the object complies with a predetermined condition. | 05-16-2013 |
20130100670 | LIGHTING SYSTEM WITH A HEAT SINK HAVING PLURALITY OF HEAT CONDUITS - A lighting system includes a heat sink having an upper and a lower face, and a plurality of light engines. The heat sink includes a plurality of individual, enclosed heat conduits extending generally parallel to a longitudinal axis of the heat sink between the upper and the lower faces. Each heat conduit has an entrance proximate to the lower face and an exit proximate to the upper face. The light engines are each coupled to at least one heat conduit such that thermal energy generated by the light engines is transferred to the heat conduits to cause air to flow through each of the heat conduits due to convection. | 04-25-2013 |
20130099664 | AMALGAM TIP TEMPERATURE CONTROL FOR AN ELECTRODELESS LAMP - A electrodeless lamp including a fluorescent discharge vessel, a tip, an amalgam, a lamp core, and a heater. The vessel contains a gas having a partial vapor pressure and a fluorescent material. The tip has an inner end engaging the vessel, and an opening in communication with the gas. The amalgam is positioned within the opening, in heat transfer relation with the tip. When the temperature of the amalgam decreases, mercury vapor in the gas condensates onto the amalgam, causing a decrease in the partial vapor pressure of the gas. The opposite occurs when the amalgam temperature increases. The lamp core generates a magnetic flux, causing an electrical discharge in the gas. The heater includes a positive temperature coefficient connected to a winding of the lamp core. The heater is in heat transfer relation with the tip and heats the tip when the electrodeless lamp is in a dimming mode. | 04-25-2013 |
20130094210 | Combination optics light emitting diode landing light - A light module ( | 04-18-2013 |
20130088142 | ARRANGEMENT OF SOLID STATE LIGHT SOURCES AND LAMP USING SAME - Arrangements of solid state light sources for color-mixing, and light sources including the same, are provided. A substrate has and a plurality of different color LED chips coupled thereto. The emitted light is mixed to produce a white light output. The LED chips are arranged on the substrate in a manner that improves color-mixing, for example, by forming LED sets including one or more LED chips of different colors, by skewing the LED chips, and/or by forming a non-rectangular array or a circular array of LED sets and/or chips. The color-mixing LED arrangement may be used in a lamp or other light source together with collimating optics to collimate and further mix the color-mixed light output from the LED arrangement. The color-mixing LED arrangement may be provided as a single package with multiple LED chips or as multiple packages of one or more LED chips. | 04-11-2013 |
20130076270 | LIGHTING CONTROL - The present invention provides a lighting fixture including a light source, a light source controller, and an external controller plug. The light source controller controls power to the light source. The external controller plug allows an external controller to selectively engage a power source to the light source controller. | 03-28-2013 |
20130070454 | Modular Light Emitting Diode (LED) Lamp - An LED lamp ( | 03-21-2013 |
20130070448 | LED LAMP - There is herein described a lamp for providing white light comprising a plurality of light sources positioned on a substrate. Each of said light sources comprises a blue light emitting diode (LED) and a dome that substantially covers said LED. A first portion of said blue light from said LEDs is transmitted through said domes and a second portion of said blue light is converted into a red light by a first phosphor contained in said domes. A cover is disposed over all of said light sources that transmits at least a portion of said red and blue light emitted by said light sources. The cover contains a second phosphor that emits a yellow light in response to said blue light. The red, blue and yellow light combining to form the white light and the white light having a color rendering index (CRI) of at least about 80. | 03-21-2013 |
20130068439 | Heat Sink Assembly - A heat sink assembly ( | 03-21-2013 |
20130063016 | MODIFIED SPECTRUM INCANDESCENT LAMP - There is herein described a lamp having a light-transmissive envelope, a tungsten-halogen capsule and a coating disposed on the surface of the light-transmissive envelope or doped in the light-transmissive material. The light-transmissive envelope may comprise a light-transmissive material. The tungsten-halogen capsule can be positioned inside the light-transmissive envelope. | 03-14-2013 |
20130057998 | SYSTEMS AND METHODS FOR SWITCHING A RELAY AT ZERO CROSS - Circuitry, systems and methods that address the need to coordinate relay switching with another event, such as a zero crossing of an alternating current (AC) voltage waveform are described. In some embodiments, the systems and methods continuously or periodically calibrate the timing of control signals to a relay, such that the switching of the relay in response to some (e.g., second or subsequent) control signals occurs closer in time to a zero crossing of an AC line voltage than the switching of the relay in response to other (e.g., initial or first) control signals. | 03-07-2013 |
20130057172 | THREE LIGHT LEVEL ELECTRONIC BALLAST - A three light level electronic ballast, and methods of operating lamps at three light levels, are provided. The ballast includes a rectifier, a power factor correction circuit, an inverter circuit, a first circuit, a second circuit, and a control circuit. The rectifier receives an AC voltage signal and produces a rectified voltage signal, which the power factor correction circuit receives and uses to provide a corrected voltage signal. The inverter circuit receives the corrected voltage signal and provides an energizing signal to power at least two lamps. The first circuit selectively reduces the current applied to the lamps by the energizing signal. The second circuit selectively prevents the second lamp from being energized by the energizing signal. The control circuit controls the first circuit and the second circuit. | 03-07-2013 |
20130056765 | LIGHT EMITTING DIODE LIGHT SOURCE INCLUDING ALL NITRIDE LIGHT EMITTING DIODES - A light source including at least two phosphor converted (pc) light emitting diodes (LEDs), each of the pc LEDs including an associated blue-emitting LED as an excitation source for a phosphor containing element. | 03-07-2013 |
20130049462 | MULTICHANNEL POWER SUPPLY - Systems and methods for a multichannel power supply are disclosed. The multichannel power supply includes a front end circuit configured to receive an input voltage and to provide a regulated front end direct current (DC) voltage. A multichannel source circuit is coupled to the front-end circuit. The multichannel source circuit includes a controller, a reference voltage circuit, and a plurality of source circuits. Each source circuit in the plurality of source circuits represents a distinct output channel of the multichannel power supply. The multichannel source circuit is configured to generate a constant current output for each source circuit in the plurality of source circuits. Each load in a plurality of loads is connected to a corresponding source circuit in the plurality of source circuits and is configured to receive the corresponding constant current output via the corresponding source circuit. | 02-28-2013 |
20130039068 | Lamp Assembly with Snap-In Capsule Clip | 02-14-2013 |
20130039029 | Light Engine Having Distributed Remote Phosphors - There is herein described a light engine that emits a light. The light engine includes a light source, a light guide, a plurality of extraction optical elements, and a plurality of phosphors. The light guide receives the light. The extraction optical elements are on the surface of the light guide. The extraction optical elements extract at least a portion of the light out of the light guide. The phosphors are disposed on top of at least some of the extraction optical elements. | 02-14-2013 |
20130033848 | COMPACT, THERMALLY-ENHANCED SUBSTRATE FOR LIGHTING APPLICATIONS - A solid state light source module having a compact, thermally enhanced substrate with one or more recessed pockets, is provided. The module includes a solid state light source and an electrical connection for the solid state light source, such that it is able to receive power so as to generate light. The solid state light source is connected to a substrate having an upper surface and a lower surface. The substrate includes a recessed pocket in the upper surface, defined by a wall and a floor that are at least large enough to accommodate the solid state light source; thus, the solid state light source sits within the recessed pocket. This allows the module to be substantially flat, even with an attached optical system, even utilizing remote phosphor technology, and increases the amount of heat dissipated by a thermal management system that is part of, or connected to, the module. | 02-07-2013 |