Embodiments are directed to optics, light modules with such optics, and methods of assembling such light modules such that the optics are attached and sealed directly to a printed circuit board, thereby eliminating the need for gaskets and a frame and reducing the number of component parts of the light module. In some embodiments, the optics are discrete optics that can each be attached to the printed circuit board independent of the other optics.
An optical assembly and a luminaire with extreme cutoff beam control optics. The optical assembly includes a base, a plurality of lenses, a plurality of light emitting diodes (LED) positioned to emit light into the lenses, and a reflector having a reflective surface disposed adjacent at least one of the plurality of LEDs. The optical axis of one or more of the LEDs may be offset from a central axis of the respective lens in which it emits light. The reflective surface of the reflector may extend from the base over the one or more of the LEDs and beyond the optical axis of the one or more LEDs to direct light in a desired direction or toward a selected area (e.g., a street) and cut off light directed in an undesirable direction or area (e.g., a house).
An optic having a first optic portion located on a first side of the optic and a second optic portion formed integrally with the first optic portion and located on a second side of the optic. A first cavity is defined by a first cavity inner surface in the first optic portion, the first optic portion being configured to refract light rays emitted by at least one light source. The second optic portion includes at least one total internal reflection surface and a second cavity defined at least partially by a second cavity rear surface that extends at an angle between 20° and 60°, inclusive, relative to an axis defining the height the of the optic. The second cavity rear surface is configured to refract other light rays toward the at least one total internal reflection surface, and the at least one internal reflection surface is configured to reflect the light rays toward the first side of the optic.
Light modules with lens assemblies having one or more silicone components such as silicone optics and/or a silicone lens substrate. Embodiments also include attachment features and/or thermal control features that may be used to improve performance of the light modules with lens assemblies having the silicone components. Adhering features and/or thermal control features may be included with the light module having the lens assemblies with one or more silicone components.
F21V 17/10 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
F21V 31/03 - Gas-tight or water-tight arrangements with provision for venting
Disclosed herein is an optical assembly and a luminaire with extreme cutoff beam control optics. The optical assembly includes a base, a plurality of lenses disposed on the base and spaced from each other, a plurality of light emitting diodes (LED), and a reflector having a curved surface (e.g., concave shape, parabolic shape, etc.) disposed adjacent to at least one of the plurality of LEDs. A central axis of an LED may be offset from a central axis of the respective lens of the plurality of lenses. The curved surface may extend from the base and curving over the at least one of the plurality of LEDs and beyond the central axis of each of the at least one of the plurality of LEDs and direct light in a desired direction or a selected area (e.g., a street side) and cut off light in other direction (e.g., a house side).
An optic having a first optic portion located on a first side of the optic and a second optic portion fonned integrally with the first optic portion and located on a second side of the optic. A first cavity is defined by a first cavity inner surface in the first optic portion, the first optic portion being configured to refract light rays emitted by at least one light source. The second optic portion includes at least one total internal reflection surface and a second cavity defined at least partially by a second cavity rear surface that extends at an angle between 200 and 60 , inclusive, relative to an axis defining the height the of the optic. The second cavity rear surface is configured to refract other light rays toward the at least one total internal reflection surface, and the at least one internal reflection surface is configured to reflect the light rays toward the first side of the optic.
Light modules with lens assemblies having one or more silicone components such as silicone optics and/or a silicone lens substrate. Embodiments also include attachment features and/or thermal control features that may be used to improve perfomiance of the light modules with lens assemblies having the silicone components. Adhering features and/or themial control features may be included with the light module having the lens assemblies with one or more silicone components.
12.
LIGHT MODULE WITH DISCRETE OPTICS AND METHODS OF ASSEMBLING SAME
Embodiments are directed to optics, light modules with such optics, and methods of assembling such light modules such that the optics are attached and sealed directly to a printed circuit board, thereby eliminating the need for gaskets and a frame and reducing the number of component parts of the light module. In some embodiments, the optics are discrete optics that can each be attached to the printed circuit board independent of the other optics.
An optical assembly and a luminaire with extreme cutoff beam control optics. The optical assembly includes a base, a plurality of lenses, a plurality of light emitting diodes (LED) positioned to emit light into the lenses, and a reflector having a reflective surface disposed adjacent at least one of the plurality of LEDs. The optical axis of one or more of the LEDs may be offset from a central axis of the respective lens in which it emits light. The reflective surface of the reflector may extend from the base over the one or more of the LEDs and beyond the optical axis of the one or more LEDs to direct light in a desired direction or toward a selected area (e.g., a street) and cut off light directed in an undesirable direction or area (e.g., a house).
F21K 9/68 - Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction - Details of reflectors forming part of the light source
F21K 9/69 - Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction - Details of refractors forming part of the light source
F21S 8/08 - Lighting devices intended for fixed installation with a standard
A luminaire or lighting control device includes a network interface with a transceiver configured for communication via a lighting control network for lighting control and systems operations. The device can include a light source to emit illumination lighting, a driver circuit to control operation of the light source, and a power supply. The device includes a processor coupled to the network interface, and a memory accessible to the processor that stores a battery level threshold. The device includes programming in the memory. Execution of the programming by the processor configures the device to implement the following functions. First, the device receives a lighting control message. Second, the device determines a battery level of a power switch. Finally, in response to the battery level of the power switch being less than the battery level threshold, the device controls the luminaire or another luminaire to enter a low battery mode.
A luminaire or lighting control device includes a network interface with a transceiver configured for communication via a lighting control network for lighting control and systems operations. The device can include a light source to emit illumination lighting, a driver circuit to control operation of the light source, and a power supply. The device includes a processor coupled to the network interface, and a memory accessible to the processor that stores a battery level threshold. The device includes programming in the memory. Execution of the programming by the processor configures the device to implement the following functions. First, the device receives a lighting control message. Second, the device determines a battery level of a power switch. Finally, in response to the battery level of the power switch being less than the battery level threshold, the device controls the luminaire or another luminaire to enter a low battery mode.
A resonant tank converter including a reconfigurable resonant tank circuit including a switch configured to switch a resonant tank configuration of the reconfigurable resonant tank circuit to a first or second configuration in response to feedback signals representative of the output to a load. In some embodiments, the first configuration is an LLC resonant tank configuration, and the second configuration is an LCC resonant tank configuration.
H02M 3/00 - Conversion of dc power input into dc power output
H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
H02M 1/08 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
H02M 1/44 - Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
24.
LOW FREQUENCY OUTPUT RIPPLE CANCELATION FOR A POWER SUPPLY
A method for reducing current ripple at an output of a power supply includes sensing an alternating current (AC) input voltage waveform; determining a correction factor for a switching frequency of the power supply based on the sensed AC input voltage; and applying the correction factor to the switching frequency of the power supply to modify the power supply switching frequency. A modification of the switching frequency synchronizes the switching frequency of the power supply to the AC input voltage waveform.
H02M 1/14 - Arrangements for reducing ripples from dc input or output
H02M 3/158 - Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
H02M 3/00 - Conversion of dc power input into dc power output
A light fixture having a light engine with at least one light source and a shade formed of a light transmissive, pliable material adapted to diffuse light emitted from the at least one light source outwardly from the light fixture. In some embodiments, the light transmissive, pliable material is a fabric material.
Silicone-containing light fixture optics. A method for manufacturing an optical component may include mixing two precursors of silicone, opening a first gate of an optic forming device, moving the silicone mixture from the extrusion machine into the optic forming device, cooling the silicone mixture as it enters the optic forming device, filling a mold within the optic forming device with the silicone mixture, closing the first gate, and heating the silicone mixture in the mold to at least partially cure the silicone. Alternatively, a method for manufacturing an optical component may include depositing a layer of heat cured silicone optical material to an optical structure, arranging one or more at least partially cured silicone optics on the layer of heat cured silicone optical material, and heating the heat cured silicone optical material to permanently adhere the one or more at least partially cured silicone optics to the optical structure.
B32B 17/10 - Layered products essentially comprising sheet glass, or fibres of glass, slag or the like comprising glass as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
B29C 48/16 - Articles comprising two or more components, e.g. co-extruded layers
G02B 1/04 - Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
B29C 48/08 - Flat, e.g. panels flexible, e.g. films
G02B 1/10 - Optical coatings produced by application to, or surface treatment of, optical elements
B29C 48/13 - Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
B29K 83/00 - Use of polymers having silicon, with or without sulfur, nitrogen, oxygen or carbon only, in the main chain, as moulding material
B29K 283/00 - Use of polymers having silicon, with or without sulfur, nitrogen, oxygen or carbon only, in the main chain, as reinforcement
B29C 48/88 - Thermal treatment of the stream of extruded material, e.g. cooling
B29C 48/12 - Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
B32B 37/12 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
B29C 48/90 - Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
B29L 11/00 - Optical elements, e.g. lenses, prisms
28.
FLYBACK CONVERTER WITH INDIRECT ESTIMATION OF PRIMARY- SIDE VOLTAGE AT THE SECONDARY-SIDE
A flyback converter with indirect estimation of primary-side voltage at the secondary-side. The converter includes a primary voltage sensing circuit coupled to the second winding of the converter and being configured to establish an output voltage when a switch of the converter is in the first state and a first diode of the converter is reversed biased, the output voltage being representative of a voltage across the primary winding.
H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
An emergency luminaire includes an emergency luminaire light source to emit emergency illumination lighting. The emergency luminaire also includes an emergency luminaire power supply configured to be driven by an emergency power line. The emergency luminaire further includes emergency luminaire programming, wherein execution of the emergency luminaire programming configures the emergency luminaire to implement the following functions. The emergency luminaire tracks an active message gap time. In response to receiving a normal power active message from a respective member device of a plurality of member devices of a lighting control group before the tracked active message gap time exceeds an active message timeout, the emergency luminaire resets the active message gap time. In response to the tracked active message gap time exceeding the active message timeout, the emergency luminaire enters an emergency mode (EM) active state by controlling the emergency luminaire light source to emit the emergency illumination lighting.
H02J 9/02 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which an auxiliary distribution system and its associated lamps are brought into service
H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
For a programmable direct current (DC)-DC converter application, a driver system includes a switched mode power circuit for providing a DC power signal to an electrical load and a control block. Control block includes interfaces coupled to receive at least one input signal from a low voltage region of the switched mode power circuit and to provide at least one control signal to the low voltage region. Control block configures the switched mode power circuit to provide the DC power signal having at least one power parameter within a tolerance of a power configuration setting value of the electrical load. Control block responds to the at least one input signal from the low voltage region to adjust operation of the low voltage region via the at least one control signal. Low voltage region can include a plurality of switched converter circuits.
H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
H02M 3/158 - Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
H05B 45/382 - Switched mode power supply [SMPS] with galvanic isolation between input and output
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H05B 47/18 - Controlling the light source by remote control via data-bus transmission
H05B 45/375 - Switched mode power supply [SMPS] using buck topology
An anti-glare refractor for a luminaire may include an optic body having a light entrance side and a light exit side. The optic body may include a material characterized by an index of refraction. The light entrance side may include a substantially flat surface, and the light exit side may include a plurality of prisms each defined by a plurality of facet surfaces. Each facet surface may have a prism slope angle with respect to the substantially flat surface. The prism slope angle may be in a range from about 5 degrees to about 45 degrees.
An anti-glare refractor for a luminaire may include an optic body having a light entrance side and a light exit side. The optic body may include a material characterized by an index of refraction. The light entrance side may include a substantially flat surface, and the light exit side may include a plurality of prisms each defined by a plurality of facet surfaces. Each facet surface may have a prism slope angle with respect to the substantially flat surface. The prism slope angle may be in a range from about 5 degrees to about 45 degrees.
An automatic driver-dimming-mode detection protocol includes subjecting, via a dimming bus, a luminaire driver to a first driver control signal of test analog voltages. Forcing the luminaire driver, via the first driver control signal, into a power output response that includes: (a) a constant output power mode, or (b) at least two discernable different output power levels. Detecting a dimming mode of the luminaire driver. The step of detecting the dimming mode of the luminaire driver includes: measuring, via a power metering circuit, a power metering measurement corresponding to the power output response; and based on the power metering measurement of the luminaire driver being: (a) the constant output power mode, determining that the luminaire driver is a digital dimming mode type (e.g., DALI), or (b) the at least two discernable different output power levels, determining that the luminaire driver is an analog dimming mode type (e.g., 0-10V). For the latter case, based on the two measured power levels, determination is then made on whether the luminaire driver has a LIN or LOG dimming curve.
An example control system includes a set of light fixtures connected to a hub, where each light fixture includes a hub-communication device configured to communicate with the hub and a direct communication device configured to communicate directly with other light fixtures. Together, the light fixtures form a mesh network facilitated by the use of their direct communication devices. An external device communicates an instruction to a light fixture, and the instruction is propagated throughout the mesh network through communications among the light fixtures using their respective direct communication devices. As a result, each light fixture to which the instruction applies receives and complies with the instructions. The light fixtures are also configured to receive instructions from the hub, such that a light fixture is configured to receive instructions over dual networks.
H05B 47/19 - Controlling the light source by remote control via wireless transmission
H04W 48/18 - Selecting a network or a communication service
H04L 12/28 - Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
H04W 4/80 - Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
Goods & Services
Electrical lighting controls; electrical dimming controllers and light switches for electric fixtures; electric light dimming units comprised of cabinet housing, control stations and wiring for control of electrical lighting fixtures and electric loads; electronic lighting control systems, comprised of dimmers, low voltage switches, programmable lighting controllers, lighting energy management occupancy sensors and timers, and range extenders for energy management; lighting control apparatus and computer software programs for controlling and operating lighting systems Electric lighting fixtures; LED lighting systems, namely, LED modules, power supplies, and wiring; structural components, fittings and parts of electric lighting fixtures, namely, trims, mounts, hangers, positioners, baffles, and lamp fittings
A lighting system, including but not limited to security lighting systems, includes a light fixture having a housing and a light source supported on the housing. The light fixture may include an adjuster that is adjustable to control both an output level of the light source and an external light level at which the light source is activated. Additionally or alternatively, the light source may be a first light source, and the light fixture may include a second light source and a motion sensor housed within an installation cavity of the housing and behind an optic of the light fixture. The first light source may be supported on the housing outside of the installation cavity.
F21V 23/04 - Arrangement of electric circuit elements in or on lighting devices the elements being switches
H05B 47/13 - Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings by using passive infrared detectors
H05B 47/11 - Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
F21V 5/04 - Refractors for light sources of lens shape
A lighting system, including but not limited to security lighting systems, includes a light fixture having a housing and a light source supported on the housing. The light fixture may include an adjuster that is adjustable to control both an output level of the light source and an external light level at which the light source is activated. Additionally or alternatively, the light source may be a first light source, and the light fixture may include a second light source and a motion sensor housed within an installation cavity of the housing and behind an optic of the light fixture. The first light source may be supported on the housing outside of the installation cavity.
A light fixture may include a light fixture housing defining an internal cavity. A light fixture may also include one or more light engines positioned within the internal cavity of the light fixture housing and designed to emit light for illumination. A light fixture may also include an external power driver positioned within the internal cavity of the light fixture housing and designed to receive power from an external power source, and provide power to and control the one or more light engines. A light fixture may also include a backup power supply positioned within the internal cavity of the light fixture housing, and a backup power driver positioned within the internal cavity of the light fixture housing and designed to receive power from the backup power supply, and provide power to and control the one or more light engines.
H02J 9/06 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over
A light fixture may include a light fixture housing defining an internal cavity. A light fixture may also include one or more light engines positioned within the internal cavity of the light fixture housing and designed to emit light for illumination. A light fixture may also include an external power driver positioned within the internal cavity of the light fixture housing and designed to receive power from an external power source, and provide power to and control the one or more light engines. A light fixture may also include a backup power supply positioned within the internal cavity of the light fixture housing, and a backup power driver positioned within the internal cavity of the light fixture housing and designed to receive power from the backup power supply, and provide power to and control the one or more light engines.
F21S 9/02 - Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
F21S 8/02 - Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
F21V 23/00 - Arrangement of electric circuit elements in or on lighting devices
A photocontrol, such as for an outdoor intelligent lighting fixture, may detect levels of ambient light at multiple sections of the photocontrol. The ambient light may be detected via multiple photosensors located at the photocontrol sections. In addition, the ambient light may be detected via multiple color filters (or sections of a color filter) located at the photocontrol sections. The photocontrol may determine an ambient light differential, such as an instant differential between light received at the multiple photocontrol sections at a particular time, or a temporal differential between light received at the multiple photocontrol sections across multiple times. Based on the ambient light differential, the photocontrol may identify triggering photosensor or triggering section that substantially align with a geographical orientation. The photocontrol may identify a lighting output profile. An output level of a lighting element may be modified based on the lighting output profile.
An example method includes, in response to receiving a gateway heartbeat message from a lighting system non-connected gateway RF node, incrementing a gateway heartbeat counter. In response to receiving a repeater RF node heartbeat message from a network RF node of lighting system non-connected network RF nodes set to a repeater role, incrementing a repeater heartbeat counter. In response to a cycle time exceeding a cycle time timeout, the gateway heartbeat counter not exceeding a gateway heartbeat threshold, and the repeater heartbeat counter exceeding a repeater heartbeat threshold, selecting a selected network RF node of the RF nodes set to the repeater role. Transmitting, via an extended star wireless network, a registration message to the selected network RF node. In response to transmitting the registration message and having a network RF node role state set to an unconnected role, setting the network RF node role state to a connected role.
An example method includes, in response to receiving a gateway heartbeat message from a lighting system non-connected gateway RF node, incrementing a gateway heartbeat counter. In response to receiving a repeater RF node heartbeat message from a network RF node of lighting system non-connected network RF nodes set to a repeater role, incrementing a repeater heartbeat counter. In response to a cycle time exceeding a cycle time timeout, the gateway heartbeat counter not exceeding a gateway heartbeat threshold, and the repeater heartbeat counter exceeding a repeater heartbeat threshold, selecting a selected network RF node of the RF nodes set to the repeater role. Transmitting, via an extended star wireless network, a registration message to the selected network RF node. In response to transmitting the registration message and having a network RF node role state set to an unconnected role, setting the network RF node role state to a connected role.
A controller assembly for a light fixture may include a controller housing to be received within a knockout opening of a light fixture housing from which light is emitted, and a user input assembly positioned within the controller housing. The user input assembly may include a mechanical actuator accessible through a controller opening in the controller housing, and a connector interface to be electrically connected by wiring to a driver of the light fixture, and circuitry electrically coupled to the mechanical actuator and the connector interface. The circuitry may be used to detect actuation of the mechanical actuator by a user and, in response, change a control signal from the connector interface to the driver from a first control signal to a second control signal in order change a property of the emitted light.
A lighting control system includes a control group including a plurality of member devices which includes a power monitor and an emergency luminaire. The power monitor includes a power supply driven by a normal power source. The power monitor implements the following function. Transmit, via a wireless lighting control network, a normal power active message to the control group repeatedly at a predetermined time interval. The emergency luminaire includes an emergency light source to continuously emit illumination lighting during an emergency, and a power supply driven by an emergency power line. The emergency luminaire implements the following functions. Track an active message gap time. Reset the active message gap time after receiving the normal power active message. In response to the tracked active message gap time exceeding an active message timeout, enter an emergency mode active state by controlling the emergency light source to continuously emit the illumination lighting.
H02J 9/02 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which an auxiliary distribution system and its associated lamps are brought into service
H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
52.
NETWORKED LIGHTING CONTROL SYSTEM WITH DEDICATED KEEPALIVE NORMAL POWER EMERGENCY PROTOCOL
A lighting control system includes a control group including a plurality of member devices which includes a power monitor and an emergency luminaire. The power monitor includes a power supply driven by a normal power source. The power monitor implements the following function. Transmit, via a wireless lighting control network, a normal power active message to the control group repeatedly at a predetermined time interval. The emergency luminaire includes an emergency light source to continuously emit illumination lighting during an emergency, and a power supply driven by an emergency power line. The emergency luminaire implements the following functions. Track an active message gap time. Reset the active message gap time after receiving the normal power active message. In response to the tracked active message gap time exceeding an active message timeout, enter an emergency mode active state by controlling the emergency light source to continuously emit the illumination lighting.
H02J 9/06 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over
H05B 47/175 - Controlling the light source by remote control
F21S 9/02 - Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
A wall-mounted wireless battery charger for a wireless remote lighting controller includes: a wall plate configured to removably retain the wireless remote lighting controller; and an inductive charging transmitter circuit coupled to the wall plate, the inductive charging transmitter circuit being configured to wirelessly interface with an inductive charging receiver circuit of the wireless remote lighting controller when the wireless remote lighting controller is retained by the wall plate. The inductive charging receiver circuit is configured to wirelessly receive power from the inductive charging transmitter circuit and generate a direct current (DC) voltage to charge a battery of the wireless remote lighting controller.
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
A wall-mounted wireless battery charger for a wireless remote lighting controller includes: a wall plate configured to removably retain the wireless remote lighting controller; and an inductive charging transmitter circuit coupled to the wall plate, the inductive charging transmitter circuit being configured to wirelessly interface with an inductive charging receiver circuit of the wireless remote lighting controller when the wireless remote lighting controller is retained by the wall plate. The inductive charging receiver circuit is configured to wirelessly receive power from the inductive charging transmitter circuit and generate a direct current (DC) voltage to charge a battery of the wireless remote lighting controller.
H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
H05B 47/19 - Controlling the light source by remote control via wireless transmission
A wall plate system for an electrical device, including but not limited to indoor wall switches, includes a wall plate and a shield. The wall plate defines an aperture, and the wall plate is configured to receive a portion of an electrical device in the aperture. The shield extends at least partially through the aperture, and the shield is configured to form a seal between the wall plate and the electrical device.
A light fixture includes a visible light module and a germicidal light module. The visible light module may include one or more visible light engines designed for emitting visible light for general illumination. The visible light module may define a top side, a bottom side opposite the top side, and an outer perimeter around the top side and the bottom side. The visible light module may define an aperture extending through the visible light module from the top side to the bottom side. The visible light module may be designed to emit the visible light out of and across the bottom side from the outer perimeter to an inner perimeter defined by the aperture. The germicidal light module may be coupled to the visible light module. The germicidal light module includes a germicidal light engine designed to emit germicidal light through the aperture effective in deactivating pathogens.
F24F 8/22 - Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using UV light
F21S 8/02 - Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
F21V 8/00 - Use of light guides, e.g. fibre optic devices, in lighting devices or systems
A resonant tank converter including a reconfigurable resonant tank circuit including a switch configured to switch a resonant tank configuration of the reconfigurable resonant tank circuit to a first or second configuration in response to feedback signals representative of the output to a load. In some embodiments, the first configuration is an LLC resonant tank configuration, and the second configuration is an LCC resonant tank configuration.
H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
G05F 1/00 - Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or val
H02M 3/00 - Conversion of dc power input into dc power output
H02M 3/24 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
H02M 3/337 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration
An housing for use with a light fixture is described with a housing body and a mounting hook. The housing body can have an upper surface and a hook mounting hub exposed on the upper surface. The mounting hook can be rotatably coupled to the hook mounting hub and adapted to rotate between a stowed position where the hook lies substantially flush or proximate with the upper surface of the housing body and an upraised position where the hook extends upwardly from the upper surface of the housing body.
An automatic driver-dimming-mode detection protocol includes subjecting, via a dimming bus, a luminaire driver to a first driver control signal of test analog voltages. Forcing the luminaire driver, via the first driver control signal, into a power output response that includes: (a) a constant output power mode, or (b) at least two discernable different output power levels. Detecting a dimming mode of the luminaire driver. The step of detecting the dimming mode of the luminaire driver includes: measuring, via a power metering circuit, a power metering measurement corresponding to the power output response; and based on the power metering measurement of the luminaire driver being: (a) the constant output power mode, determining that the luminaire driver is a digital dimming mode type (e.g., DALI), or (b) the at least two discernable different output power levels, determining that the luminaire driver is an analog dimming mode type (e.g., 0-10V).
A mounting system for a recessed light fixture includes a frame and a holder supported by the frame. The holder includes a base and a support portion extending from the base. The support portion includes a top end, a bottom end opposite from the top end, and an edge extending from the top end to the bottom end. The edge includes a transition portion between the top end and the bottom end, a first step between the bottom end and the transition portion, and a plurality of second steps between the first step and the transition portion. At least one characteristic of the first step is different from each second step.
A mounting system for a recessed light fixture includes a frame and a holder supported by the frame. The holder includes a base and a support portion extending from the base. The support portion includes a top end, a bottom end opposite from the top end, and an edge extending from the top end to the bottom end. The edge includes a transition portion between the top end and the bottom end, a first step between the bottom end and the transition portion, and a plurality of second steps between the first step and the transition portion. At least one characteristic of the first step is different from each second step.
An housing for use with a light fixture is described with a housing body and a mounting hook. The housing body can have an upper surface and a hook mounting hub exposed on the upper surface. The mounting hook can be rotatably coupled to the hook mounting hub and adapted to rotate between a stowed position where the hook lies substantially flush or proximate with the upper surface of the housing body and an upraised position where the hook extends upwardly from the upper surface of the housing body.
An antimicrobial system, including a luminaire. The luminaire includes a first disinfection light source to emit a first disinfection light in a first ultraviolet (UV) band for disinfecting an occupied space of a plurality of pathogens that are exposed to the first disinfection light, the first UV band being 200 nanometers (nm) to 250 nm principal wavelength. The luminaire also includes a second disinfection light source to emit a second disinfection light in a second UV band for disinfecting an unoccupied space of the plurality of pathogens that are exposed to the second disinfection light, the second UV band being 200 nm to 400 nm principal wavelength. The antimicrobial system also includes a disinfection light control device to generate a control signal to control emission of the first disinfection light and the second disinfection light.
A luminaire may include a light engine comprising a plurality of LEDs arranged in one or more annular rows. The luminaire may include an optic. The optic may include an annular optic body having a light entrance side facing the plurality of LEDs and a light exit side opposite the light entrance side. A plurality of annular grooves may be defined within the light exit side, the plurality of annular grooves being coaxial with the optic body. A plurality of arc-shaped grooves may be defined within the light exit side. Each of the plurality of arc-shaped grooves may be convex relative to a center of the optic. Each of the plurality of arc-shaped grooves may intersect at least one of the plurality of annular grooves. The optic may be configured to produce a Unified Glare Rating of less than 28.
F21Y 105/18 - Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array polygonal other than square or rectangular, e.g. for spotlights or for generating an axially symmetrical light beam
68.
CONSTANT POWER SUPPLY FOR LED EMERGENCY LIGHTING USING SMART OUTPUT RESETTING CIRCUIT FOR NO LOAD CONDITIONS
A constant power backup power supply for LED lighting fixtures is disclosed. The power supply includes a storage battery that is charged while an AC power source is in an ON condition. When AC power transitions to an OFF condition, a capacitor bank charged by the battery supplies current to the primary side of a flyback converter operating in discontinuous conduction mode. The secondary side of the flyback converter supplies constant output power to the LED lighting fixture for an arbitrary output voltage within a predetermined range.
A luminaire may include a light engine comprising a plurality of LEDs arranged in one or more annular rows. The luminaire may include an optic. The optic may include an annular optic body having a light entrance side facing the plurality of LEDs and a light exit side opposite the light entrance side. A plurality of annular grooves may be defined within the light exit side, the plurality of annular grooves being coaxial with the optic body. A plurality of arc- shaped grooves may be defined within the light exit side. Each of the plurality of arc-shaped grooves may be convex relative to a center of the optic. Each of the plurality of arc-shaped grooves may intersect at least one of the plurality of annular grooves. The optic may be configured to produce a Unified Glare Rating of less than 28.
A light fixture includes a visible light module and a germicidal light module. The visible light module may include one or more visible light engines designed for emitting visible light for general illumination. The visible light module may define a top side, a bottom side opposite the top side, and an outer perimeter around the top side and the bottom side. The visible light module may define an aperture extending through the visible light module from the top side to the bottom side. The visible light module may be designed to emit the visible light out of and across the bottom side from the outer perimeter to an inner perimeter defined by the aperture. The germicidal light module may be coupled to the visible light module. The germicidal light module includes a germicidal light engine designed to emit germicidal light through the aperture effective in deactivating pathogens.
F21V 9/40 - Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity
F21V 8/00 - Use of light guides, e.g. fibre optic devices, in lighting devices or systems
Antimicrobial system including a luminaire configured to emit a disinfection light in an ultraviolet band for disinfecting a vicinity of a target pathogen. A switching device that includes a primary relay pack. A control station, an arming switch, a room sensor, and a security challenge device. The security challenge device has a communication interface, an operator interface to receive a security challenge input from an operator, a processor, and security challenge device programming in a memory. Execution of the security challenge device programming by processor configures the security challenge device to perform the following functions. Receive the security challenge input from the operator via the operator interface. In response to receiving the security challenge input, generate a security challenge response signal. Send, via the communication interface, the security challenge response signal to enable the primary relay pack to control power to the luminaire to emit the disinfection light.
Antimicrobial system including a luminaire configured to emit a disinfection light in an ultraviolet band for disinfecting a vicinity of a target pathogen. A switching device that includes a primary relay pack. A control station, an integrated arming switch, a room sensor. The integrated arming switch has a communication interface, an integrated room sensor, a processor, and integrated arming switch programming in a memory. Execution of the integrated arming switch programming by processor configures the integrated arming switch to perform the following functions. Based on a second input from the operator, produce a visual inspection signal. In response to the integrated room sensor detecting occupancy of the vicinity of the physical space by the human, produce a room state signal. Send, via the communication interface, the visual inspection signal to enable the primary relay pack to control power to the luminaire to emit the disinfection light.
Antimicrobial system including a luminaire configured to emit a disinfection light in an ultraviolet band for disinfecting a vicinity of a target pathogen. A switching device that includes a primary relay pack. The primary relay pack has a communication interface, a measurement circuit, a processor, and disinfection monitoring programming in a memory. Execution of the disinfection monitoring programming by the processor configures the primary relay pack to perform the following functions. Based on a second input from the operator, produce a visual inspection signal. Monitor, via the measurement circuit, a power parameter of the luminaire. Compare the monitored power parameter with an active disinfection threshold, a passive operation threshold, or a combination thereof. In response to the comparison, either determine that the disinfection light source is unexpectedly on, is degraded or disabled, or the luminaire is inoperable; or control power to the luminaire to emit the disinfection light.
F21V 23/04 - Arrangement of electric circuit elements in or on lighting devices the elements being switches
G05B 13/02 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
74.
ANTIMICROBIAL SYSTEM WITH DISTRIBUTED DISINFECTION CONTROLS AND SAFE LOCKOUT PROTOCOL
Antimicrobial system that includes distributed disinfection programming that implements a safe lockout protocol. The safe lockout protocol includes in response to a control station producing an arming initiation signal that is ON based on a first input from an operator, tracking a visual inspection signal produced by an arming switch based on a second input. The safe lockout protocol further includes in response to determining that the tracked visual inspection signal is ON and the control station producing an arming completion signal that is ON based on a third input, receiving a disinfection commencement signal that is ON based on a fourth input from the control station. The safe lockout protocol further includes in response to receiving the disinfection commencement signal that is ON based on the fourth input from the control station, controlling power to a luminaire to emit a disinfection light via a primary relay pack regulator.
A rotatable connection for securing a light module to a supporting structure is described herein. The light module directs light towards an illumination area. The light module is directable by rotating the light module using the rotatable connection. The rotatable connection includes an upper connector and a base. The upper connector and the base may secure together with a tool-less connection. the upper connector couples to the light module through a rotatable connection that enables rotation of the light module without use of tools and also resists rotation of the light module after the light module has been installed at a particular angle.
Antimicrobial system including a luminaire configured to emit a disinfection light in an ultraviolet band for disinfecting a vicinity of a target pathogen. A switching device that includes a primary relay pack. A control station, an integrated arming switch, a room sensor. The integrated arming switch has a communication interface, an integrated room sensor, a processor, and integrated arming switch programming in a memory. Execution of the integrated arming switch programming by processor configures the integrated arming switch to perform the following functions. Based on a second input from the operator, produce a visual inspection signal. In response to the integrated room sensor detecting occupancy of the vicinity of the physical space by the human, produce a room state signal. Send, via the communication interface, the visual inspection signal to enable the primary relay pack to control power to the luminaire to emit the disinfection light.
Antimicrobial system that includes distributed disinfection programming that implements a safe lockout protocol. The safe lockout protocol includes in response to a control station producing an arming initiation signal that is ON based on a first input from an operator, tracking a visual inspection signal produced by an arming switch based on a second input. The safe lockout protocol further includes in response to determining that the tracked visual inspection signal is ON and the control station producing an arming completion signal that is ON based on a third input, receiving a disinfection commencement signal that is ON based on a fourth input from the control station. The safe lockout protocol further includes in response to receiving the disinfection commencement signal that is ON based on the fourth input from the control station, controlling power to a luminaire to emit a disinfection light via a primary relay pack regulator.
Antimicrobial system including a luminaire configured to emit a disinfection light in an ultraviolet band for disinfecting a vicinity of a target pathogen. A switching device that includes a primary relay pack. A control station, an arming switch, a room sensor, and a security challenge device. The security challenge device has a communication interface, an operator interface to receive a security challenge input from an operator, a processor, and security challenge device programming in a memory. Execution of the security challenge device programming by processor configures the security challenge device to perform the following functions. Receive the security challenge input from the operator via the operator interface. In response to receiving the security challenge input, generate a security challenge response signal. Send, via the communication interface, the security challenge response signal to enable the primary relay pack to control power to the luminaire to emit the disinfection light.
Antimicrobial system including a luminaire configured to emit a disinfection light in an ultraviolet band for disinfecting a vicinity of a target pathogen. A switching device that includes a primary relay pack. The primary relay pack has a communication interface, a measurement circuit, a processor, and disinfection monitoring programming in a memory. Execution of the disinfection monitoring programming by the processor configures the primary relay pack to perform the following functions. Based on a second input from the operator, produce a visual inspection signal. Monitor, via the measurement circuit, a power parameter of the luminaire. Compare the monitored power parameter with an active disinfection threshold, a passive operation threshold, or a combination thereof. In response to the comparison, either determine that the disinfection light source is unexpectedly on, is degraded or disabled, or the luminaire is inoperable; or control power to the luminaire to emit the disinfection light.
An environmentally sealed light fixture for illuminating potentially hazardous environments. The sealed light fixture includes multiple light modules that are independently rotatable to customize the direction of light emitted from the fixture. The fixture is also modular and scalable, enabling additional light modules to be added to increase lumen output or area coverage. The sealed light fixture includes sealed light chambers, electronics chambers, and sealed connections between the modules for maintaining the integrity as well as concealing the wiring and electrical connections within the light fixture.
F21V 23/00 - Arrangement of electric circuit elements in or on lighting devices
F21V 17/10 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
F21V 31/00 - Gas-tight or water-tight arrangements
A light fixture includes a housing containing a light engine, and a wireless baffle module. The wireless baffle module includes a baffle coupled to the housing and used for focusing light emitted from the light engine. The wireless baffle module further includes a wireless printed circuit board assembly coupled to an antenna. The wireless printed circuit board assembly receives and processes wireless signals from the antenna, and sends control signals to the light engine based on the wireless signals. The wireless baffle module may be coupled to a lighting system with an existing non-wireless module, or be used to replace a wireless baffle module with the same or different wireless protocol.
H01Q 1/38 - Structural form of radiating elements, e.g. cone, spiral, umbrella formed by a conductive layer on an insulating support
H01Q 9/42 - Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
A wireless controller system includes a cradle device and a wireless controller. The cradle device includes a power input that receives power from a power source, a first communication module that communicates wirelessly with one or more devices remote from the cradle device, and a first electrical interface that provides a charging power to the wireless controller. The wireless controller includes a display device that displays lighting system control features. The wireless controller also includes a second communication module that communicates wirelessly with the first communication module of the cradle device. Additionally, the wireless controller includes a microphone that receives a voice input to interact with at least one voice assistant, and a second electrical interface that generates a power link with the first electrical interface of the cradle device to receive the charging power from the cradle device.
G10L 15/22 - Procedures used during a speech recognition process, e.g. man-machine dialog
G08C 17/02 - Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
H04W 4/80 - Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
G10L 15/30 - Distributed recognition, e.g. in client-server systems, for mobile phones or network applications
H05B 47/12 - Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings by detecting audible sound
H05B 47/19 - Controlling the light source by remote control via wireless transmission
An area optical cover for a linear light source extends along an axial direction. The optical cover includes a portion of an optical material that forms a constant cross-section transverse to the axial direction. An outer surface of the cross-section is substantially planar, and an inner surface of the cross-section forms a plurality of facets. Each of the facets forms a refractive surface that is configured to refract a corresponding portion of light from the light source, and a return surface that connects the refractive surface with a refractive surface of an adjacent facet. When the outer surface is oriented horizontally on a lower side of the portion of the optical material, and the linear light source is positioned at an installation height above the inner surface, all facets within at least 30 degrees of nadir from the light source are optimized to provide a selected light distribution.
A light system may include a luminaire comprising one or more light emitters and at least one optic. The light system may include a remote phosphor mask that is reversibly coupled with the luminaire using at least one reversible coupling mechanism. The remote phosphor mask may include one or more phosphors admixed with an optical material. The one or more phosphors may be capable of adjusting a color temperature of emitted light from the luminaire.
F21K 9/64 - Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
85.
Light fixture with removable auxiliary light modules
A light fixture includes a housing defining a channel and an insert lighting module. The insert lighting module includes an insert housing, a visible light engine coupled to a bottom portion of the insert housing for emitting visible light for general illumination, and an auxiliary light module coupled to the insert housing and including an auxiliary light engine for emitting germicidal light effective in deactivating pathogens. A top portion of the insert lighting module may be positioned within the channel and the insert lighting module may be coupled to the housing. The auxiliary light module may be uncoupled and removed from the insert housing by performing the steps of: uncoupling the insert lighting module from the housing and removing the insert lighting module from the channel, and uncoupling the auxiliary light module from the insert housing and removing the auxiliary module from the top portion of the insert housing.
A software tool automatically generates a components list (also known as a “solution”, “recipe”, or “bill of materials”) to be used in completing an installation. This components list may include, for example, fixtures and control devices for use in implementing lighting solutions for a building. The system takes as input a sequence of operations table, and identifies components to satisfy the requirements specified in the sequence of operations table. A number of different solutions may be presented, offering different configurations, cost levels, product lines, and/or the like; the different solutions may also indicate different degrees to which controls are embedded in fixtures. The user can then select among the presented solutions, and/or can perform other operations to change the configuration and/or parameters so as to generate new options.
A light fixture having an upper housing and a lower housing. A rotate-tilt mechanism is interposed between the two housings to pemiit the lower housing both to rotate and tilt relative to the upper housing.
A light fixture having an upper housing and a lower housing. A rotate-tilt mechanism is interposed between the two housings to permit the lower housing both to rotate and tilt relative to the upper housing.
F21V 17/02 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment
F21V 17/10 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
F21V 17/12 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by screwing
A system for providing power over Ethernet emergency lighting is disclosed. The system includes a rechargeable battery pack that is charged without interfering with data signals present on a power over Ethernet link that provides normal lighting. The system includes a power loss monitor for monitoring the presence of normal lighting power present on a power over Ethernet link without interference.
A baffle component for a luminaire includes a portion of opaque material that forms a front surface and a back surface as major surfaces. The front surface includes multiple ridges. The material also includes a top surface and a bottom surface, and a first end surface and a second end surface. The first end surface includes a first coupling feature, and the second end surface includes a second coupling feature that is configured to engage the first coupling feature of a second baffle component that is substantially identical to the baffle component. A baffle for a luminaire includes a plurality of such components. The baffle components engage with one another, with the first coupling feature of each of the baffle components engaging with the second coupling feature of another of the baffle components, to form a shape that surrounds a central opening of the luminaire.
F21S 8/02 - Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
F21V 17/10 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
A reversible mounting arm that is universal in that it can be used to mount a light fixture to either a flat or curved mounting surface, such as, but not limited to, a round or rectilinear-shaped pole. More specifically, one end of the mounting arm is designed for mating with a round pole having a curved sidewall (or other curved mounting surfaces) whereas the opposing end of the mounting arm is designed for mating with poles having a flat sidewall (or other flat mounting surfaces).
F21V 21/116 - Fixing lighting devices to arms or standards
F16M 13/02 - Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
In an example, a method comprises communicating with a radio frequency (RF)-enabled asset tag within a space, tracking a location of the RF-enabled asset tag within the space, determining location estimates of the asset tag as the asset tag moves within the space, and accepting identifying information from or about a selected user. The method additionally comprises determining, based on a predetermined correspondence criteria, a correspondence between the asset tag location and a position estimate of an electronic hardware device within the space. Further, in response to determining the correspondence between the asset tag and the electronic hardware device and based at least in part on the identifying information accepted via the electronic hardware device, the method includes associating tracked asset tag location information corresponding to the location estimates of the asset tag as the asset tag moved within the space to identification of the selected user.
In an example, a method comprises communicating with a radio frequency (RF)- enabled asset tag within a space, tracking a location of the RF-enabled asset tag within the space, determining location estimates of the asset tag as the asset tag moves within the space, and accepting identifying information from or about a selected user. The method additionally comprises determining, based on a predetermined correspondence criteria, a correspondence between the asset tag location and a position estimate of an electronic hardware device within the space. Further, in response to determining the correspondence between the asset tag and the electronic hardware device and based at least in part on the identifying information accepted via the electronic hardware device, the method includes associating tracked asset tag location information corresponding to the location estimates of the asset tag as the asset tag moved within the space to identification of the selected user.
A reversible mounting arm that is universal in that it can be used to mount a light fixture to either a flat or curved mounting surface, such as, but not limited to, a round or rectilinear-shaped pole. More specifically, one end of the mounting arm is designed for mating with a round pole having a curved sidewall (or other curved mounting surfaces) whereas the opposing end of the mounting arm is designed for mating with poles having a flat sidewall (or other flat mounting surfaces).
A continuous load high-power flyback converter includes a first transformer having a first primary winding, a first secondary winding, and a first auxiliary winding, and a second transformer having a second primary winding, a second secondary winding, and a second auxiliary winding. The first primary winding and the second primary winding are connected in parallel between a power source and a transistor. The first secondary winding and the second secondary winding are connected in series to a diode and form an output of the continuous load high-power flyback converter. A load is connected between the output and ground. The first auxiliary winding and the second auxiliary winding are connected in series, and used to generate a control signal for the transistor. Connecting the primary windings in parallel and the secondary windings in series reduces the reflected voltage on the transistor for a given output voltage.
H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
H05B 45/385 - Switched mode power supply [SMPS] using flyback topology
H01F 30/04 - Fixed transformers not covered by group having two or more secondary windings, each supplying a separate load, e.g. for radio set power supplies
H01F 27/38 - Auxiliary core members; Auxiliary coils or windings
An area optical cover for a linear light source extends along an axial direction. The optical cover includes a portion of an optical material that forms a constant cross-section transverse to the axial direction. An outer surface of the cross-section is substantially planar, and an inner surface of the cross-section forms a plurality of facets. Each of the facets forms a refractive surface that is configured to refract a corresponding portion of light from the light source, and a return surface that connects the refractive surface with a refractive surface of an adjacent facet. When the outer surface is oriented horizontally on a lower side of the portion of the optical material, and the linear light source is positioned at an installation height above the inner surface, all facets within at least 30 degrees of nadir from the light source are optimized to provide a selected light distribution.
A baffle component for a luminaire includes a portion of opaque material that forms a front surface and a back surface as major surfaces. The front surface includes multiple ridges. The material also includes a top surface and a bottom surface, and a first end surface and a second end surface. The first end surface includes a first coupling feature, and the second end surface includes a second coupling feature that is configured to engage the first coupling feature of a second baffle component that is substantially identical to the baffle component. A baffle for a luminaire includes a plurality of such components. The baffle components engage with one another, with the first coupling feature of each of the baffle components engaging with the second coupling feature of another of the baffle components, to form a shape that surrounds a central opening of the luminaire.
F21S 8/02 - Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
F21V 17/16 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts of the lighting device; Snap action mounting
F21V 17/00 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
A lighting system includes first and second component housed within respective first and second housings, and a connector. The first housing defines a first substantially rectangular cross-section that extends from a first end to a second end. The first component is capable of emitting light. The second housing defines a second substantially rectangular cross-section. The second substantially rectangular cross-section extends from a third end to a fourth end. The connector connects the second end with the third end. The connector defines a third substantially rectangular cross-section that is substantially identical to the first and second substantially rectangular cross-sections. The third substantially rectangular cross-section extends along a path from the second end to the third end. The path includes at least one curve of at least fifteen degrees between the second end and the third end, and/or, the substantially rectangular cross-section rotates at least fifteen degrees about the path.
F21S 4/24 - Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports flexible or deformable, e.g. into a curved shape of ribbon or tape form, e.g. LED tapes
F21S 8/06 - Lighting devices intended for fixed installation intended only for mounting on a ceiling or like overhead structure by suspension
F21S 2/00 - Systems of lighting devices, not provided for in main groups or , e.g. of modular construction
F21Y 103/10 - Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
