Gateways are used in a lighting system to couple control signals onto power lines running to a plurality of lighting fixtures. Each gateway can filter received power and provide the filtered power to a plurality of lighting fixtures that are controllable by the gateway with digital signals coupled onto the power line running to the fixtures that carries the filtered power. Each gateway can also pass received digital signals to another gateway via a signal line that is separate from the power line that carries the filtered power. In this manner, multiple gateways can be daisy-chained together in a residential or commercial facility to provide readily-installable and highly versatile lighting control. Nulls in communication links can be avoided using different carrier frequencies and/or repeater functionality assigned to the lighting fixtures.
A recessed lighting system includes a substantially heat conducting unified casting having a front face and a rear heat conducting portion and having dimensions to fit inside a standard-sized junction box. The system further includes a light source module, housed within the heat conducting unified casting, to emit light, wherein the light source module is positioned closer to the rear heat conducting portion than the front face of the substantially heat conducting unified casting. A driver, housed within the heat conducting unified casting and insulated from the heat conducting unified casting, provides power the light source module. A lens, coupled to the heat conducting unified casting, direct lights produced by the light source module out into an area surrounding the recessed lighting system. The substantially heat conducting unified casting significantly dissipates heat generated by the light source module during operation of the light source module.
H04R 1/24 - Structural combinations of separate transducers or of parts of the same transducer and responsive respectively to two or more frequency ranges
Apparatus and methods for operating low-voltage lighting systems are described. Wiring hubs can reduce installation wiring complexity. A smart power supply can provide more than 100 watts of power on Class 2 low-voltage wiring to compliant loads and limit power delivery to 100 watts for non-compliant loads.
A junction box having a cavity to contain electrical wires that provide a connection to a building mains voltage from an electrical system of a building is coupled to a plurality of telescoping hanger bars to hold the junction box in a wall or ceiling in the building. Each telescoping hanger bar is extendible and/or retractable to vary a length of the hanger bar. A position of the junction box is adjustable along the length of each telescoping hanger bar. In one example, the apparatus does not include a can, separate from the junction box, to contain a lighting device of a recessed lighting assembly.
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
Apparatus and methods for controlling correlated color temperature (CCT) and lighting intensity in lighting fixtures are described. The CCT and intensity may be controlled independently over conventional AC wiring using a conventional dimmer. A lighting controller that resembles a conventional dimmer and that can be installed in place of a dimmer may be used instead of a conventional dimmer to access more control functionalities, still using conventional AC wiring. Wireless communication with the lighting fixture and/or lighting controller are possible.
A lighting module includes a heat sink with a sidewall and a partition defining two cavities, a LED light source disposed in one cavity to emit light, a driver module disposed in the other cavity with driver circuitry to provide electrical power to the light source, and an optical assembly to provide a desired emission profile. The optical assembly is field-changeable and includes a cover lens with snap-fit connectors to facilitate removal and replacement. The optical assembly further includes either a reflector coupled to the cover lens or an optical lens coupled to the heat sink via an optic holder. In some examples, the driver circuitry facilitates dimming of the light source. The heat sink also dissipates heat generated by the light source and the driver circuitry to maintain desired operating temperatures and thereby facilitate increased light output.
F21V 17/06 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages onto or by the lamp holder
F21S 8/02 - Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
F21V 29/508 - Cooling arrangements characterised by the adaptation for cooling of specific components of electrical circuits
H05B 45/10 - Controlling the intensity of the light
F21V 23/00 - Arrangement of electric circuit elements in or on lighting devices
Apparatus and methods for operating low-voltage lighting systems are described. Wiring hubs can reduce installation wiring complexity. A smart power supply can provide more than 100 watts of power on Class 2 low-voltage wiring to compliant loads and limit power delivery to 100 watts for non-compliant loads.
H05B 45/357 - Driver circuits specially adapted for retrofit LED light sources
H05B 45/3574 - Emulating the electrical or functional characteristics of incandescent lamps
H05B 45/3577 - Emulating the dimming characteristics, brightness or colour temperature of incandescent lamps
H05B 45/46 - Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines
H05B 45/48 - Details of LED load circuits with an active control inside an LED matrix having LEDs organised in strings and incorporating parallel shunting devices
Apparatus and methods for operating low-voltage lighting systems are described. Wiring hubs can reduce installation wiring complexity. A smart power supply can provide more than 100 watts of power on Class 2 low-voltage wiring to compliant loads and limit power delivery to 100 watts for non-compliant loads.
H05B 45/46 - Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines
H05B 45/48 - Details of LED load circuits with an active control inside an LED matrix having LEDs organised in strings and incorporating parallel shunting devices
10.
Lighting assembly with AC to DC converter and heat-sinking housing
A lighting assembly includes a heat-sinking housing, a lens, a light source module including at least one LED, and an AC to DC converter to receive an AC voltage and supply regulated electrical energy to power the light source module. The housing includes a closed rear wall and a sidewall that defines a housing cavity containing the at least one LED. The closed rear wall and the sidewall are formed of a heat conductive material to conduct heat generated by the light source module. The assembly has a front end face, and at least one exterior width dimension of less than 3½ inches. In one example, a circular recess defined along an inner edge of the front end face contains the lens in the assembly. In another example, the front face includes a tool-less mating mechanism, for example a twist-and-lock mechanism comprising multiple flanges and/or slots.
H04R 23/02 - Transducers using more than one principle simultaneously
H04R 1/24 - Structural combinations of separate transducers or of parts of the same transducer and responsive respectively to two or more frequency ranges
11.
Apparatus and methods for communicating information and power via phase-cut AC waveforms
Apparatus and methods for controlling correlated color temperature (CCT) and lighting intensity in lighting fixtures are described. The CCT and intensity may be controlled independently over conventional AC wiring using a conventional dimmer. A lighting controller that resembles a conventional dimmer and that can be installed in place of a dimmer may be used instead of a conventional dimmer to access more control functionalities, still using conventional AC wiring. Wireless communication with the lighting fixture and/or lighting controller are possible.
A lighting module includes a heat sink having a sidewall and a partition that define a first cavity and a second cavity. A driver enclosure is disposed in the first cavity to electrically insulate a driver from the heat sink. The driver enclosure substantially fills and covers the first cavity. A light source that emits light is disposed in the second cavity together with an optical element that redirects the light. A retaining ring/optic cover covers and encloses the second cavity. The lighting module is shaped and/or dimensioned to fit into a space having a width less than 2.4 inches, a height less than 2.25 inches, and/or a volume as small as 18 cubic inches. The heat sink may also include a receptacle to couple a trim to thermally and electrically couple the trim to the heat sink to dissipate heat and to ground the trim.
F21V 29/70 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
F21V 29/10 - Arrangement of heat-generating components to reduce thermal damage, e.g. by distancing heat-generating components from other components to be protected
F21V 5/04 - Refractors for light sources of lens shape
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 deviceSnap action mounting
F21V 23/00 - Arrangement of electric circuit elements in or on lighting devices
14.
Adjustable electrical apparatus with hangar bars for installation in a building
A junction box having a cavity to contain electrical wires that provide a connection to a building mains voltage from an electrical system of a building is coupled to a plurality of telescoping hanger bars to hold the junction box in a wall or ceiling in the building. Each telescoping hanger bar is extendible and/or retractable to vary a length of the hanger bar. A position of the junction box is adjustable along the length of each telescoping hanger bar. In one example, the apparatus does not include a can, separate from the junction box, to contain a lighting device of a recessed lighting assembly.
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 fire-resistant, recessed lighting unit that obviates the need for a separate junction box and a separate incandescent “can”. Other embodiments are also described and claimed.
An integrated lighting module comprises a light emitting diode element, a driver, and a driver housing having first side walls and a first top that caps the first side walls to receive the driver. A heat sink module having an upper portion and a lower portion is configured for receiving the light emitting diode element and for transferring heat away from the light emitting diode element. An optical reflector is substantially conical in shape for reflecting and directing at least some light from the light emitting diode element. The light emitting diode element is disposed above a top-hole of the optical reflector. A holder is detachably coupled to the heat sink module to hold the at least one optical reflector.
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 23/02 - Arrangement of electric circuit elements in or on lighting devices the elements being transformers or impedances
F21V 29/77 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
F21V 23/06 - Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices
Apparatus and methods for controlling correlated color temperature (CCT) and lighting intensity in lighting fixtures are described. The CCT and intensity may be controlled independently over conventional AC wiring using a conventional dimmer. A lighting controller that resembles a conventional dimmer and that can be installed in place of a dimmer may be used instead of a conventional dimmer to access more control functionalities, still using conventional AC wiring. Wireless communication with the lighting fixture and/or lighting controller are possible.
A lighting module includes a heat sink with a sidewall and a partition defining two cavities, a LED light source disposed in one cavity to emit light, a driver module disposed in the other cavity with driver circuitry to provide electrical power to the light source, and an optical assembly to provide a desired emission profile. The optical assembly is field-changeable and includes a cover lens with snap-fit connectors to facilitate removal and replacement. The optical assembly further includes either a reflector coupled to the cover lens or an optical lens coupled to the heat sink via an optic holder. In some examples, the driver circuitry facilitates dimming of the light source. The heat sink also dissipates heat generated by the light source and the driver circuitry to maintain desired operating temperatures and thereby facilitate increased light output.
F21V 17/06 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages onto or by the lamp holder
F21S 8/02 - Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
F21V 29/508 - Cooling arrangements characterised by the adaptation for cooling of specific components of electrical circuits
H05B 45/10 - Controlling the intensity of the light
F21V 23/00 - Arrangement of electric circuit elements in or on lighting devices
Apparatus and methods for controlling correlated color temperature (CCT) and lighting intensity in lighting fixtures are described. The CCT and intensity may be controlled independently over conventional AC wiring using a conventional dimmer. A lighting controller that resembles a conventional dimmer and that can be installed in place of a dimmer may be used instead of a conventional dimmer to access more control functionalities, still using conventional AC wiring. Wireless communication with the lighting fixture and/or lighting controller are possible.
Apparatus and methods for controlling correlated color temperature (CCT) and lighting intensity in lighting fixtures are described. The CCT and intensity may be controlled independently over conventional AC wiring using a conventional dimmer. A lighting controller that resembles a conventional dimmer and that can be installed in place of a dimmer may be used instead of a conventional dimmer to access more control functionalities, still using conventional AC wiring. Wireless communication with the lighting fixture and/or lighting controller are possible.
A housing assembly for a recessed lighting system includes a housing with integrally formed cable routing features, mounting features, and alignment features. The integration of multiple features into the housing is enabled by forming the housing from a polymer using an injection molding process instead of sheet metal. For a new construction installation, the housing includes integrally formed bar hanger holders to support and guide bar hangers for installation onto two or more support structures, nail-in features for installation onto a single support structure, and one or more alignment features to position the housing against the single support structure when the nail-in features are used for installation. For a remodel installation, the housing includes a flange to abut a bottom surface of a ceiling and one or more spring clips mounted to the housing to abut a top surface of the ceiling.
Embodiments are directed to a lighting system including a junction box for accommodating a light source assembly, and which is configured to allows for additional components such as separate drivers or emergency ballasts to also be included in the lighting system together with the light source assembly. In embodiments, the junction box is mounted on a pan style frame. In some embodiments, the lighting system includes a test switch mounted on a trim piece that is accessible from below a ceiling in which the lighting system is installed, and which allows for an emergency power supply to be verified.
F21S 8/02 - Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
F21S 9/02 - Lighting devices with a built-in power supplySystems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
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 17/12 - 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 lighting module includes a heat sink with a sidewall and a partition defining two cavities, a LED light source disposed in one cavity to emit light, a driver module disposed in the other cavity with driver circuitry to provide electrical power to the light source, and an optical assembly to provide a desired emission profile. The optical assembly is field-changeable and includes a cover lens with snap-fit connectors to facilitate removal and replacement. The optical assembly further includes either a reflector coupled to the cover lens or an optical lens coupled to the heat sink via an optic holder. In some examples, the driver circuitry facilitates dimming of the light source. The heat sink also dissipates heat generated by the light source and the driver circuitry to maintain desired operating temperatures and thereby facilitate increased light output.
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 deviceSnap action mounting
An outer casing for a lighting module comprises a closed base end and a sidewall joined to the closed base end. The sidewall and the closed base end together defining a cavity to contain at least the lighting module. The sidewall comprises: a portion having a substantially cylindrical shape; a lower edge, joined to the portion having the substantially cylindrical shape and located opposite to the closed base end, defining a circular opening; two diametrically opposed flat portions, joined to the portion having the substantially cylindrical shape, starting at and extending from the closed base end; and two sloped portions, each sloped portion of the two sloped portions joining a corresponding flat portion of the two diametrically opposed flat portions to the portion of the sidewall having the substantially cylindrical shape. At least one knockout is disposed on at least one flat portion and on the closed base end.
A housing assembly for a lighting system includes a single metal housing that functions as a can housing and a junction box and has a round geometry to improve ease of installation and support trims with smaller flanges. The housing includes a top component and one or more sidewall components. The sidewall component defines the desired round shape of the housing while the top component provides one or more flat surfaces to support one or more knockout features. For a remodel installation, the housing assembly further includes a spring clip assembly with a mounting ring and multiple spring clamps to securely couple the housing assembly to a drywall panel of a ceiling. For a new construction installation, the housing assembly further includes a bar hanger assembly to couple the housing to one or more support structures within the ceiling.
A housing assembly includes a housing to support one or more components of a lighting system or an electrical system, a caddy-type bar hanger assembly to facilitate installation onto support structures in the environment, and one or more bar hanger holders or a pan frame to couple the bar hanger assembly to the housing. In particular, the bar hanger assembly includes a crossmember with mounting features to facilitate installation onto a wood/metal joist or stud, a T-bar, a hat channel, and a metal frame. The crossmember is formed as a unitary component separate from the bar hangers, thus simplifying manufacture by enabling fabrication using conventional sheet metal processes and enabling different housing assemblies to be assembled using one or more of the same components to accommodate housings with different shapes and sizes. The housing assembly may also include support for a junction box and an emergency ballast.
A housing assembly for a recessed lighting system includes a housing with integrally formed cable routing features, mounting features, and alignment features. The integration of multiple features into the housing is enabled by forming the housing from a polymer using an injection molding process instead of sheet metal. For a new construction installation, the housing includes integrally formed bar hanger holders to support and guide bar hangers for installation onto two or more support structures, nail-in features for installation onto a single support structure, and one or more alignment features to position the housing against the single support structure when the nail-in features are used for installation. For a remodel installation, the housing includes a flange to abut a bottom surface of a ceiling and one or more spring clips mounted to the housing to abut a top surface of the ceiling.
A housing assembly includes a housing to support one or more components of a lighting system or an electrical system, a caddy-type bar hanger assembly to facilitate installation onto support structures in the environment, and one or more bar hanger holders or a pan frame to couple the bar hanger assembly to the housing. In particular, the bar hanger assembly includes a crossmember with mounting features to facilitate installation onto a wood/metal joist or stud, a T-bar, a hat channel, and a metal frame. The crossmember is formed as a unitary component separate from the bar hangers, thus simplifying manufacture by enabling fabrication using conventional sheet metal processes and enabling different housing assemblies to be assembled using one or more of the same components to accommodate housings with different shapes and sizes. The housing assembly may also include support for a junction box and an emergency ballast.
F16M 13/02 - Other supports for positioning apparatus or articlesMeans for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
A housing assembly for a lighting system includes a single metal housing that functions as a can housing and ajunction box and has a round geometry to improve ease of installation and support trims with smaller flanges. The housing includes a top component and one or more sidewall components. The sidewall component defines the desired round shape of the housing while the top component provides one or more flat suffaces to support one or more knockout features. For a remodel installation, the housing assembly further includes a spring clip assembly with a mounting ring and multiple spring clamps to securely couple the housing assembly to a drywall panel of a ceiling. For a new construction installation, the housing assembly further includes a bar hanger assembly to couple the housing to one or more support structures within the ceiling.
An LED downlighting apparatus includes a housing with a sidewall having a front facing edge and a back facing edge positioned adjacent to a ceiling when the LED downlighting apparatus is installed in an opening of the ceiling. A depth of the sidewall is less than one inch and a thickness of at least a portion of the sidewall is less than three millimeters. An LED board and a lens are coupled to the housing. The lens is disposed with respect to the LED board such that the lens is illuminated from a back side. One or more mechanical couplers snap fit the apparatus to a junction box installed and positioned above the ceiling such that when the apparatus is snap fit to the junction box through the opening of the ceiling, the housing appears to be surface mounted to the ceiling.
F21K 9/68 - Details of reflectors forming part of the light source
F21S 8/02 - Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
F21S 9/02 - Lighting devices with a built-in power supplySystems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
F21Y 105/16 - Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array square or rectangular, e.g. for light panels
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 annularPlanar 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
A junction box having a cavity to contain electrical wires that provide a connection to a building mains voltage from an electrical system of a building is coupled to a plurality of telescoping hanger bars to hold the junction box in a wall or ceiling in the building. Each telescoping hanger bar is extendible and/or retractable to vary a length of the hanger bar. A position of the junction box is adjustable along the length of each telescoping hanger bar. In one example, the apparatus does not include a can, separate from the junction box, to contain a lighting device of a recessed lighting assembly.
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
36.
Lighting module with keyed heat sink coupled to thermally conductive trim
A lighting module includes a heat sink having a sidewall and a partition that define a first cavity and a second cavity; a driver enclosure disposed in the first cavity and electrically insulated from the heat sink; a light source disposed in the second cavity; an optical element positioned over the light source; a retaining ring/optic cover closing the second cavity; and a trim mechanically and electrically coupled to the heat sink. The lighting module is shaped and dimensioned to fit into a space having a width less than 2.4 inches, a height less than 2.25 inches, and a volume as small as 18 cubic inches. The heat sink includes at least one curved keyed feature reducing the volume of the heat sink and providing sufficient clearance for the heat sink to fit within an enclosed space.
F21V 15/01 - Housings, e.g. material or assembling of housing parts
F21V 29/70 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
F21V 29/10 - Arrangement of heat-generating components to reduce thermal damage, e.g. by distancing heat-generating components from other components to be protected
F21V 5/04 - Refractors for light sources of lens shape
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 deviceSnap action mounting
F21V 23/00 - Arrangement of electric circuit elements in or on lighting devices
37.
Polymer housing for a recessed lighting system and methods for using same
A recessed lighting system includes multiple components formed from a polymer to reduce the number of components in the system, lower the cost of manufacture, and simplify the installation of the recessed lighting system. In one example, a recessed lighting system includes a housing formed from a polymer, a hanger bar assembly, a light module, and a trim. A yoke may be installed into the housing to provide greater accessibility to mount the light module and/or trim to the housing. A partition plate may be installed to push back wires/cables disposed in the housing such that the cavity of the housing is divided into a wiring compartment containing the wires/cables and a lighting compartment containing the light module and the trim. A hanger bar assembly may also be coupled to the housing to couple the recessed lighting system to a building structure (e.g., a T-bar, a joist, a stud).
A lighting apparatus includes a housing structure having a rear face, a sidewall, a front end face, a partition to divide an interior cavity of the housing structure into a top portion and a bottom portion, and at least one exterior width dimension such that at least a portion of the housing structure fits into a space having a width of less than 3.5 inches. A light source module is positioned in the bottom portion of the housing structure, and an AC to DC converter is positioned in the top portion of the housing structure to power the light source module. A reflecting element is positioned to direct light produced by the light source module out of the housing structure. At least a portion of a front surface of a substantially flat lens is substantially coplanar with an exterior surface of the front end face of the housing structure. One or more connecting mechanisms couple a trim to the front end face of the housing structure, and an electrical connector, coupled to the AC to DC converter, is integrated into the housing structure along a sidewall of the housing structure.
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 29/77 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
F21V 23/06 - Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices
F21V 23/02 - Arrangement of electric circuit elements in or on lighting devices the elements being transformers or impedances
F21S 8/02 - Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
A lighting module includes a heat sink having a sidewall and a partition that define a first cavity and a second cavity. A driver enclosure is disposed in the first cavity to electrically insulate a driver from the heat sink. The driver enclosure substantially fills and covers the first cavity. A light source that emits light is disposed in the second cavity together with an optical element that redirects the light. A retaining ring/optic cover covers and encloses the second cavity. The lighting module is shaped and/or dimensioned to fit into a space having a width less than 2.4 inches, a height less than 2.25 inches, and/or a volume as small as 18 cubic inches. The heat sink may also include a receptacle to couple a trim to thermally and electrically couple the trim to the heat sink to dissipate heat and to ground the trim.
A lighting module includes a heat sink having a sidewall and a partition that define a first cavity and a second cavity. A driver enclosure is disposed in the first cavity to electrically insulate a driver from the heat sink. The driver enclosure substantially fills and covers the first cavity. A light source that emits light is disposed in the second cavity together with an optical element that redirects the light. A retaining ring/optic cover covers and encloses the second cavity. The lighting module is shaped and/or dimensioned to fit into a space having a width less than 2.4 inches, a height less than 2.25 inches, and/or a volume as small as 18 cubic inches. The heat sink may also include a receptacle to couple a trim to thermally and electrically couple the trim to the heat sink to dissipate heat and to ground the trim.
An LED lighting apparatus comprises a housing having at least one sidewall, an LED board, a lens having a back side facing the LED board and a front side opposite to the back side, and a driver module cover. The lens is disposed with respect to the LED board such that the plurality of the LEDs illuminate the back side of the lens. An adapter bracket is employed to couple the LED lighting apparatus to a junction box installed and positioned above the ceiling such that when the apparatus is snapped into the junction box, the driver module cover is at least partially disposed in the junction box.
F21K 9/68 - Details of reflectors forming part of the light source
F21S 8/02 - Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
F21S 9/02 - Lighting devices with a built-in power supplySystems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
F21Y 105/16 - Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array square or rectangular, e.g. for light panels
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 annularPlanar 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
A lighting assembly includes a light source module including at least one LED, an AC to DC converter to receive an AC voltage and supply regulated electrical energy to power the light source module, a lens, and a heat-sinking unified casting. The casting includes a closed rear wall and a sidewall that defines a casting cavity containing the at least one LED. The closed rear wall and the sidewall are formed of a heat conductive material to dissipate heat generated by the light source module, and the sidewall has at least one exterior width dimension of less than 3½ inches. The assembly also includes a front end face coupled to the sidewall, and a twist-and-lock mechanism comprising multiple flanges that extend radially outward from a perimeter of the front end face, and/or at least one groove and/or at least one slot to form a twist-and-lock friction connection with a trim.
H04R 1/24 - Structural combinations of separate transducers or of parts of the same transducer and responsive respectively to two or more frequency ranges
H04R 23/02 - Transducers using more than one principle simultaneously
The recessed lighting fixture includes a light source module and a driver housed within a unified casting, and within a shared outer casing. The outer casing may be coupled to a hangar holder that is movably coupled to a corresponding hangar bar. The outer casing, including the light source module and driver installed therein, may move both 1) in the length direction of the hangar bar and 2) perpendicular to the length direction of the hangar bar. The recessed lighting fixture may have less bulk and size than traditional recessed lighting fixtures. Other embodiments are also described and claimed.
An adjustable lighting apparatus includes a lighting module that is rotatably adjustable about a first rotation axis relative to an adjustable mount. The lighting module may include a heat sink, a driver, and a light source. The adjustable mount may include a base structure, a retainer, a shield, and a secondary shield. A trim may also be coupled to the adjustable mount. In some implementations, the lighting module translates along a first translation axis defined by the adjustable mount while rotating about the first rotation axis in order to reorient the light source while reducing shading losses caused by the adjustable mount. Openings in the base structure and the shield may be substantially covered at all rotational positions of the lighting module using a combination of the shield, the trim, the heat sink, and the secondary shield, thus eliminating the need for an additional enclosure.
F21V 29/76 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
An LED downlighting apparatus includes a housing with a sidewall having a front facing edge and a back facing edge positioned adjacent to a ceiling when the LED downlighting apparatus is installed in an opening of the ceiling. A depth of the sidewall is less than one inch and a thickness of at least a portion of the sidewall is less than three millimeters. An LED board and a lens are coupled to the housing. The lens is disposed with respect to the LED board such that the lens is illuminated from a back side. One or more mechanical couplers snap fit the apparatus to a junction box installed and positioned above the ceiling such that when the apparatus is snap fit to the junction box through the opening of the ceiling, the housing appears to be surface mounted to the ceiling.
F21K 9/68 - Details of reflectors forming part of the light source
F21S 8/02 - Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
F21S 9/02 - Lighting devices with a built-in power supplySystems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
F21Y 105/16 - Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array square or rectangular, e.g. for light panels
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 annularPlanar 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
A fire-resistant, recessed lighting unit that obviates the need for a separate junction box and a separate incandescent “can”. Other embodiments are also described and claimed.
An apparatus comprising an enclosure including a sidewall having an exterior shape defined at least in part by a plurality of sides, at least one curve, an ellipsoid, a cone, a cylinder, a polygon or a polyhedron. The enclosure forms a cavity, surrounded by the sidewall, to contain electrical wires providing a connection to mains electricity power from an electrical system of a building. A first telescoping hangar bar assembly is disposed on and in direct contact with a first portion of the sidewall of the enclosure, and a second telescoping hangar bar assembly is disposed on and in direct contact with a second portion of the sidewall of the enclosure opposite to the first portion of the sidewall.
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 housing has a sidewall that surrounds an interior cavity that has an open rear end and an open front end, and is divided by a partition into a top cavity and a bottom cavity. The top cavity extends to the open rear end, the bottom cavity extends to the open front end. A power supply circuit board is inside the top cavity, while a light source is inside the bottom cavity and emits light through the open front end to illuminate a room. First wires pass through an opening in the partition, and are coupled to the power supply circuit board at one end and to the light source at another end, to deliver power to the light source. A lid or cover covers the open rear end enclosing the top cavity, and is secured to the housing. Other embodiments are also described and claimed.
F21S 8/02 - Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
F21V 5/04 - Refractors for light sources of lens shape
F21V 23/00 - Arrangement of electric circuit elements in or on lighting devices
F21V 7/24 - Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material
F21V 7/28 - Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings
F21V 23/02 - Arrangement of electric circuit elements in or on lighting devices the elements being transformers or impedances
F21V 29/77 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
F21V 29/507 - Cooling arrangements characterised by the adaptation for cooling of specific components of means for protecting lighting devices from damage, e.g. housings
A hanger bar assembly comprises a first hanger bar, a second hanger bar, and a hanger bar holder. The first hanger bar and the second hanger bar are mechanically coupled where the first hanger bar slides relative to the second hang bar in a telescopic manner. The first hanger bar and the second hanger bar both include an interlocking structure that interlocks the first hanger bar with the second hanger bar, reducing lateral movement, such as backlash or slop. The hanger bar holder is used to hold at least one of the first hanger bar or the second hanger bar. The hanger bar holder includes a first section to guide at least the first hanger bar and a second section to guide at least the second hanger bar. The first section and the second section also constrain lateral movement of the first hanger bar and the second hanger bar, respectively.
Light output from an LED light source is increased or reduced in response to adjustment of a triac-based dimmer having a triac holding current to maintain conduction of the dimmer. An LED controller to control the light output includes a voltage-controlled impedance to provide an adaptive holding current that causes a triac current of the dimmer to be greater than the triac holding current, particularly when the dimmer is adjusted for significantly low light output (e.g., less than 5%, 2%, or 1% of full power light output). The adaptive holding current also allows for smooth increase of the light output starting from low light output, without perceivable flicker or shimmer. In one example, the voltage-controlled impedance is a resistive-like impedance that is placed on a secondary side of a transformer providing power to the LED light source. In another example, the voltage-controlled impedance is not pulse width modulated.
A hybrid lens collimates light emitted by a light source via refraction and reflection. A folded optic element of the lens comprises an outer reflective surface, a lens output surface, and a hollow core comprising a sidewall having a curved profile, a core output boundary, and a core input opening through which the light emitted by the light source enters the hollow core. A reflector of the lens receives the light emitted by the light source, reflects a first portion of the light into the hollow core of the folded optic element, and directly transmits a second portion of the light into the hollow core without reflection by the reflector. In one example, the lens output surface has a diameter of 65 millimeters, the lens has a thickness (between the light source and the lens output surface) of about 13.5 millimeters and provides substantially collimated light with a beam divergence angle of 12 degrees or less.
G02B 1/14 - Protective coatings, e.g. hard coatings
F21V 7/28 - Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings
A recessed lighting system includes a casting, a light source module and one or more optic elements disposed in the casting, and a driver to power the light source module. In one example, the system also includes a junction box or a 4-10 inch recessed lighting fixture enclosure in which the casting is disposed. The system may also include a trim to cover an exposed edge of a hole in a ceiling or a wall into which the recessed lighting system is installed. The system also may include one or more connecting mechanisms to couple the trim to one or both of the junction box/enclosure and the casting. In one example, the casting includes a front end face and the one or more connecting mechanisms couple the trim to the front end face of the casting. The connecting mechanism(s) may include a twist-and-lock friction connection.
H04R 23/02 - Transducers using more than one principle simultaneously
H04R 1/24 - Structural combinations of separate transducers or of parts of the same transducer and responsive respectively to two or more frequency ranges
An adjustable lighting apparatus includes a lighting module that is rotatably adjustable about a first rotation axis relative to an adjustable mount. The lighting module may include a heat sink, a driver, and a light source. The adjustable mount may include a base structure, a retainer, a shield, and a secondary shield. A trim may also be coupled to the adjustable mount. In some implementations, the lighting module translates along a first translation axis defined by the adjustable mount while rotating about the first rotation axis in order to reorient the light source while reducing shading losses caused by the adjustable mount. Openings in the base structure and the shield may be substantially covered at all rotational positions of the lighting module using a combination of the shield, the trim, the heat sink, and the secondary shield, thus eliminating the need for an additional enclosure.
F21V 29/76 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
The present embodiments relate to an advanced error free occupancy detection system based on thermal infrared (IR) imaging and located in ceiling luminaires. The occupancy detection system includes a plurality of luminaires configured to wirelessly communicate with each other. Each luminaire of the plurality of luminaires includes a wireless interface, and a thermal IR imaging sensor and a microcontroller. The wireless interface is configured to communicate with the rest of the plurality of luminaires. The thermal IR imaging sensor is configured to collect thermal IR images of a vicinity of the luminaire. The microcontroller is configured to process the thermal IR images for detecting one or more humans in the vicinity of the luminaire and to generate dimming signals for one or more of the plurality of luminaires based on the detection.
A thin profile surface mount LED lighting apparatus includes a housing, an LED board including multiple LEDs, and a lens. The lens has a back side facing the LED board and a front side that provides a downward facing surface when the LED lighting apparatus is installed in an opening of a ceiling. The lens is disposed with respect to the LED board such that the LEDs illuminate the back side of the lens. A first spacing of the LEDs causes resulting light from the downward facing surface of the lens to be substantially uniform during operation of the apparatus. In one example, a thin front edge of a sidewall of the housing, forming a perimeter around the lens, is flush with the lens and is appreciably thin (e.g., a thickness of less than three millimeters), and a depth of the sidewall housing is less than one inch.
F21K 9/68 - Details of reflectors forming part of the light source
F21S 8/02 - Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
F21S 9/02 - Lighting devices with a built-in power supplySystems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
F21Y 105/16 - Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array square or rectangular, e.g. for light panels
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 annularPlanar 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
Light output from an LED light source is increased or reduced in response to adjustment of a triac-based dimmer having a triac holding current to maintain conduction of the dimmer. An LED controller to control the light output includes a voltage-controlled impedance to provide an adaptive holding current that causes a triac current of the dimmer to be greater than the triac holding current, particularly when the dimmer is adjusted for significantly low light output (e.g., less than 5%, 2%, or 1% of full power light output). The adaptive holding current also allows for smooth increase of the light output starting from low light output, without perceivable flicker or shimmer. In one example, the voltage-controlled impedance is a resistive-like impedance that is placed on a secondary side of a transformer providing power to the LED light source. In another example, the voltage-controlled impedance is not pulse width modulated.
A recessed lighting system includes multiple components formed from a polymer to reduce the number of components in the system, lower the cost of manufacture, and simplify the installation of the recessed lighting system. In one example, a recessed lighting system includes a housing formed from a polymer, a hanger bar assembly, a light module, and a trim. A yoke may be installed into the housing to provide greater accessibility to mount the light module and/or trim to the housing. A partition plate may be installed to push back wires/cables disposed in the housing such that the cavity of the housing is divided into a wiring compartment containing the wires/cables and a lighting compartment containing the light module and the trim. A hanger bar assembly may also be coupled to the housing to couple the recessed lighting system to a building structure (e.g., a T-bar, a joist, a stud).
F21K 9/20 - Light sources comprising attachment means
F21K 9/237 - Details of housings or cases, i.e. the parts between the light-generating element and the basesArrangement of components within housings or cases
F21K 9/275 - Details of bases or housings, i.e. the parts between the light-generating element and the end capsArrangement of components within bases or housings
F21S 8/02 - Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
F21V 15/01 - Housings, e.g. material or assembling of housing parts
A recessed lighting system includes multiple components formed from a polymer to reduce the number of components in the system, lower the cost of manufacture, and simplify the installation of the recessed lighting system. In one example, a recessed lighting system includes a housing formed from a polymer, a hanger bar assembly, a light module, and a trim. A yoke may be installed into the housing to provide greater accessibility to mount the light module and/or trim to the housing. A partition plate may be installed to push back wires/cables disposed in the housing such that the cavity of the housing is divided into a wiring compartment containing the wires/cables and a lighting compartment containing the light module and the trim. A hanger bar assembly may also be coupled to the housing to couple the recessed lighting system to a building structure (e.g., a T-bar, a joist, a stud).
F21K 9/20 - Light sources comprising attachment means
F21K 9/237 - Details of housings or cases, i.e. the parts between the light-generating element and the basesArrangement of components within housings or cases
F21K 9/275 - Details of bases or housings, i.e. the parts between the light-generating element and the end capsArrangement of components within bases or housings
F21S 8/02 - Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
F21V 15/01 - Housings, e.g. material or assembling of housing parts
A lighting module includes a housing formed of a thermally conducting material having a thermal conductivity greater than at least 0.5 W m-1K-1. The housing comprises a sidewall that forms a substantially cylindrical cavity, and a flange surrounding an opening of the substantially cylindrical cavity. The lighting module includes at least one integrated electrical connector, me- chanically engaged with and substantially lodged within at least a portion of the housing, to re- ceive AC voltage from an electrical system of a building. The lighting module further includes a light source including at least one LED disposed in the substantially cylindrical cavity, and an AC to DC converter, disposed in the substantially cylindrical cavity, to receive electrical energy from the at least one integrated electrical connector and supply regulated electrical energy to power the light source.
B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
F21K 9/00 - Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
F21V 29/503 - Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
F21V 29/71 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
F21V 29/74 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
H02M 7/02 - Conversion of AC power input into DC power output without possibility of reversal
H05B 41/16 - Circuit arrangements in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC
H05B 41/24 - Circuit arrangements in which the lamp is fed by high-frequency AC
68.
LIGHTING MODULE HAVING INTEGRATED ELECTRICAL CONNECTOR
A lighting module includes a housing formed of a thermally conducting material having a thermal conductivity greater than at least 0.5 W m-1K-1. The housing comprises a sidewall that forms a substantially cylindrical cavity, and a flange surrounding an opening of the substantially cylindrical cavity. The lighting module includes at least one integrated electrical connector, me- chanically engaged with and substantially lodged within at least a portion of the housing, to re- ceive AC voltage from an electrical system of a building. The lighting module further includes a light source including at least one LED disposed in the substantially cylindrical cavity, and an AC to DC converter, disposed in the substantially cylindrical cavity, to receive electrical energy from the at least one integrated electrical connector and supply regulated electrical energy to power the light source.
F21V 29/503 - Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
F21V 29/74 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
F21V 29/71 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
F21K 9/00 - Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
H05B 41/16 - Circuit arrangements in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC
H05B 41/24 - Circuit arrangements in which the lamp is fed by high-frequency AC
H02M 7/02 - Conversion of AC power input into DC power output without possibility of reversal
B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
69.
Plastic deep electrical junction box with a lighting module mounting yoke
ABSTRACT Light output from an LED light source is increased or reduced in response to adjustment of a triac-based dimmer having a triac holding current to maintain conduction of the dimmer. An LED controller to control the light output includes a voltage-controlled impedance to provide an adaptive holding current that causes a triac current of the dimmer to be greater than the triac holding current, particularly when the dimmer is adjusted for significantly low light output (e.g., less than 5%, 2%, or 1% of full power light output). The adaptive holding current also allows for smooth increase of the light output starting from low light output, without perceivable flicker or shimmer. In one example, the voltage-controlled impedance is a resistive-like impedance that is placed on a secondary side of a transformer providing power to the LED light source. In another example, the voltage-controlled impedance is not pulse width modulated. Date Recue/Date Received 2021-02-12
Light output from an LED light source is increased or reduced in response to adjustment of a triac-based dimmer having a triac holding current to maintain conduction of the dimmer. An LED controller to control the light output includes a voltage-controlled impedance to provide an adaptive holding current that causes a triac current of the dimmer to be greater than the triac holding current, particularly when the dimmer is adjusted for significantly low light output (e.g., less than 5%, 2%, or 1% of full power light output). The adaptive holding current also allows for smooth increase of the light output starting from low light output, without perceivable flicker or shimmer. In one example, the voltage-controlled impedance is a resistive-like impedance that is placed on a secondary side of a transformer providing power to the LED light source. In another example, the voltage-controlled impedance is not pulse width modulated.
Light output from an LED light source is increased or reduced in response to adjustment of a triac-based dimmer having a triac holding current to maintain conduction of the dimmer. An LED controller to control the light output includes a voltage-controlled impedance to provide an adaptive holding current that causes a triac current of the dimmer to be greater than the triac holding current, particularly when the dimmer is adjusted for significantly low light output (e.g., less than 5%, 2%, or 1% of full power light output). The adaptive holding current also allows for smooth increase of the light output starting from low light output, without perceivable flicker or shimmer. In one example, the voltage-controlled impedance is a resistive-like impedance that is placed on a secondary side of a transformer providing power to the LED light source. In another example, the voltage-controlled impedance is not pulse width modulated.
An adjustable lighting apparatus includes a lighting module that is rotatably adjustable about a first rotation axis relative to an adjustable mount. The lighting module may include a heat sink, a driver, and a light source. The adjustable mount may include a base structure, a retainer, a shield, and a secondary shield. A trim may also be coupled to the adjustable mount. In some implementations, the lighting module translates along a first translation axis defined by the adjustable mount while rotating about the first rotation axis in order to reorient the light source while reducing shading losses caused by the adjustable mount. Openings in the base structure and the shield may be substantially covered at all rotational positions of the lighting module using a combination of the shield, the trim, the heat sink, and the secondary shield, thus eliminating the need for an additional enclosure.
An adjustable lighting apparatus includes a lighting module that is rotatably adjustable about a first rotation axis relative to an adjustable mount. The lighting module may include a heat sink, a driver, and a light source. The adjustable mount may include a base structure, a retainer, a shield, and a secondary shield. A trim may also be coupled to the adjustable mount. In some implementations, the lighting module translates along a first translation axis defined by the adjustable mount while rotating about the first rotation axis in order to reorient the light source while reducing shading losses caused by the adjustable mount. Openings in the base structure and the shield may be substantially covered at all rotational positions of the lighting module using a combination of the shield, the trim, the heat sink, and the secondary shield, thus eliminating the need for an additional enclosure.
A hanger bar assembly comprises a first hanger bar, a second hanger bar, and a hanger bar holder. The first hanger bar and the second hanger bar are mechanically coupled where the first hanger bar slides relative to the second hang bar in a telescopic manner. The first hanger bar and the second hanger bar both include an interlocking structure that interlocks the first hanger bar with the second hanger bar, reducing lateral movement, such as backlash or slop. The hanger bar holder is used to hold at least one of the first hanger bar or the second hanger bar. The hanger bar holder includes a first section to guide at least the first hanger bar and a second section to guide at least the second hanger bar. The first section and the second section also constrain lateral movement of the first hanger bar and the second hanger bar, respectively.
F16M 13/02 - Other supports for positioning apparatus or articlesMeans for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
F21S 8/02 - Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
A hybrid lens collimates light emitted by a light source via refraction and reflection. A folded optic element of the lens comprises an outer reflective surface, a lens output surface, and a hollow core comprising a sidewall having a curved profile, a core output boundary, and a core input opening through which the light emitted by the light source enters the hollow core. A reflector of the lens receives the light emitted by the light source, reflects a first portion of the light into the hollow core of the folded optic element, and directly transmits a second portion of the light into the hollow core without reflection by the reflector. In one example, the lens output surface has a diameter of 65 millimeters, the lens has a thickness (between the light source and the lens output surface) of about 13.5 millimeters and provides substantially collimated light with a beam divergence angle of 12 degrees or less.
Embodiments relate generally to a compact and adjustable luminaire. In embodiments, the luminaire can be completely rotated a full 360 degrees and also can be tilted through a range of 45 degrees from directly downward. According to certain aspects, luminaire can be easily installed from below the ceiling line in a fire rated junction box. According to certain additional aspects, the luminaire can further be easily adjusted after installation to any desired tilt angle and/or any desired rotation. In embodiments, the luminaire can incorporate different lenses with narrow to moderate beam spreads from 10 degrees to 40 degrees.
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 29/77 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
F21V 23/00 - Arrangement of electric circuit elements in or on lighting devices
F21S 8/02 - Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
F21V 3/02 - GlobesBowlsCover glasses characterised by the shape
F21V 14/02 - Controlling the distribution of the light emitted by adjustment of elements by movement of light sources
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
F21V 23/06 - Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices
A recessed lighting installation assembly includes a junction box having a cavity to contain a lighting system together with electrical wires from an electrical system of a building for connection to the lighting system. The assembly also includes a plurality of telescoping hangar bars coupled to the junction box to hold the junction box in a gap between a plurality of beams in the building. Each telescoping hangar bar is extendible and/or retractable to vary a length of the bar between the plurality of beams to meet the gap between the plurality of beams. A position of the junction box is adjustable along the length of each telescoping hangar bar between the plurality of beams. In one example, the recessed lighting installation assembly does not include a can, separate from the junction box, to contain the lighting system.
A daylight harvesting light fixture has a housing defining a light aperture, a light emitting diode (LED) in the housing for providing illumination through the aperture, a power supply for supplying drive current to the LED; a photosensor for sensing ambient illumination through the housing aperture, and a control circuit programmed and connected for a) turning off current to the LED for a dark interval imperceptible to the human eye; b) deriving an ambient illumination level signal based on the photosensor output while the LED is turned off; c) calculating an LED light output complementary to measured ambient illumination to achieve a target ambient illumination; and d) restoring drive current to the LED at a level adjusted to produce the calculated complementary LED light output. This sequence may be repeated periodically to maintain a target ambient illumination.
Embodiments are directed to a lighting system including a junction box for accommodating a light source assembly, and which is configured to allows for additional components such as separate drivers or emergency ballasts to also be included in the lighting system together with the light source assembly. In embodiments, the junction box is mounted on a pan style frame. In some embodiments, the lighting system includes a test switch mounted on a trim piece that is accessible from below a ceiling in which the lighting system is installed, and which allows for an emergency power supply to be verified.
Embodiments are directed to a lighting system including a junction box for accommodating a light source assembly, and which is configured to allows for additional components such as separate drivers or emergency ballasts to also be included in the lighting system together with the light source assembly. In embodiments, the junction box is mounted on a pan style frame. In some embodiments, the lighting system includes a test switch mounted on a trim piece that is accessible from below a ceiling in which the lighting system is installed, and which allows for an emergency power supply to be verified.
Embodiments are directed to a lighting system including a junction box for accommodating a light source assembly, and which is configured to allows for additional components such as separate drivers or emergency ballasts to also be included in the lighting system together with the light source assembly. In embodiments, the junction box is mounted on a pan style frame. In some embodiments, the lighting system includes a test switch mounted on a trim piece that is accessible from below a ceiling in which the lighting system is installed, and which allows for an emergency power supply to be verified.
F21S 8/02 - Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
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
F21V 23/06 - Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices
F21V 23/00 - Arrangement of electric circuit elements in or on lighting devices
F21V 23/04 - Arrangement of electric circuit elements in or on lighting devices the elements being switches
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
F21S 9/02 - Lighting devices with a built-in power supplySystems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
In one example, an apparatus comprises a compact recessed lighting module, the compact recessed lighting module configured to be housed in and attachable to a junction box, the compact recessed lighting module including a monolithically formed unified casting, the unified casting having a cavity defined therein, a light source module disposed within the cavity, the light source module configured to emit light, and a driver configured to power the light source module. The monolithically formed unified casting has a plurality of fins defined in the outer surface thereof and a plurality of twist and lock tabs defined therein.
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 thin profile surface mount LED lighting apparatus includes a housing, an LED board including multiple uniformly distributed LEDs, and a lens. The lens has a back side facing the LED board and a front side that provides a downward facing surface when the LED lighting apparatus is installed in an opening of a ceiling. The lens is disposed with respect to the LED board such that the LEDs illuminate the back side of the lens. A first spacing of the LEDs causes resulting light from the downward facing surface of the lens to be substantially uniform during operation of the apparatus. In one example, a thin front edge of a sidewall of the housing, forming a perimeter around the lens, is flush with the lens and is appreciably thin (e.g., a thickness of less than three millimeters), and a depth of the sidewall housing is less than one inch.
A thin profile surface mount LED lighting apparatus includes a housing, an LED board including multiple uniformly distributed LEDs, and a lens. The lens has a back side facing the LED board and a front side that provides a downward facing surface when the LED lighting apparatus is installed in an opening of a ceiling. The lens is disposed with respect to the LED board such that the LEDs illuminate the back side of the lens. A first spacing of the LEDs causes resulting light from the downward facing surface of the lens to be substantially uniform during operation of the apparatus. In one example, a thin front edge of a sidewall of the housing, forming a perimeter around the lens, is flush with the lens and is appreciably thin (e.g., a thickness of less than three millimeters), and a depth of the sidewall housing is less than one inch.
A recessed lighting system includes a casting, a light source module and one or more optic elements disposed in the casting, and a driver to power the light source module. In one example, the system also includes a junction box or a 4-10 inch recessed lighting fixture enclosure in which the casting is disposed. The system may also include a trim to cover an exposed edge of a hole in a ceiling or a wall into which the recessed lighting system is installed. The system also may include one or more connecting mechanisms to couple the trim to one or both of the junction box/enclosure and the casting. In one example, the casting includes a front end face and the one or more connecting mechanisms couple the trim to the front end face of the casting. The connecting mechanism(s) may include a twist-and-lock friction connection.
F21V 15/00 - Protecting lighting devices from damage
F21V 17/00 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
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
H04R 1/24 - Structural combinations of separate transducers or of parts of the same transducer and responsive respectively to two or more frequency ranges
A daylight harvesting light fixture has a housing defining a light aperture, a light emitting diode (LED) in the housing for providing illumination through the aperture, a power supply for supplying drive current to the LED; a photosensor for sensing ambient illumination through the housing aperture, and a control circuit programmed and connected for a) turning off current to the LED for a dark interval imperceptible to the human eye; b) deriving an ambient illumination level signal based on the photosensor output while the LED is turned off; c) calculating an LED light output complementary to measured ambient illumination to achieve a target ambient illumination; and d) restoring drive current to the LED at a level adjusted to produce the calculated complementary LED light output. This sequence may be repeated periodically to maintain a target ambient illumination.
A fire-resistant, recessed lighting unit that obviates the need for a separate junction box and a separate incandescent “can”. Other embodiments are also described and claimed.
A fire-resistant, recessed lighting unit that obviates the need for a separate junction box and a separate incandescent "can". Other embodiments are also described and claimed.
A recessed lighting unit for mounting to a ceiling or a wall is provided. The recessed lighting unit includes an interface module having a through-duct. The through-duct may be coupled to a wire connector assembly to secure an electrical wire to the interface module and allow the electrical wire to reach a light source module. The wire connector assembly may be twisted and locked to the interface module without the use of tools. The lighting trim may be snapped on to an interface module through the use of a flexible retainer ring. The lighting trim may also be twisted and locked to an interface module without the use of tools. The present invention provides for a reduced set of components while ensuring adaptability and easy installation of lighting units. Other embodiments are also described and claimed.
F21V 23/06 - Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices
F21V 29/76 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
F21S 8/02 - Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
An enclosure such as an electrical junction box has fixed clamping flanges exterior to the enclosure, screws rotatable relative to the enclosure and operative for drawing clamping brackets from an initial elevated position towards the clamping flanges for clamping the edges of an opening cut in drywall or the like, thereby to fasten the enclosure inside a wall or ceiling. The clamping brackets are initially retracted in the enclosure and rotation of the screws releases the brackets to an extended clamping position relative to the clamping flanges.
A recessed lighting unit for mounting to a ceiling or a wall is provided. The recessed lighting unit includes a thermally conductive housing, a light source module inside the housing, and an optical plate. The housing maybe engaged to a universal adapter through a simple twist and lock mechanism. The clips enable the universal adapter to be attached to junction boxes and recessed lighting can-type housings of different sizes. The universal adapter can receive different types of clips, without the use of screws, adhesives, or tools to attach the clips to the adapter. Such a recessed lighting unit may have a reduced set of components while ensuring its adaptability and easy installation. Other embodiments are also described and claimed.
F21V 21/08 - Devices for easy attachment to a desired place
F21V 15/01 - Housings, e.g. material or assembling of housing parts
F21V 29/507 - Cooling arrangements characterised by the adaptation for cooling of specific components of means for protecting lighting devices from damage, e.g. housings
A housing has a sidewall that surrounds an interior cavity that has an open rear end and an open front end, and is divided by a partition into a top cavity and a bottom cavity. The top cavity extends to the open rear end, the bottom cavity extends to the open front end. A power supply circuit board is inside the top cavity, while a light source is inside the bottom cavity and emits light through the open front end to illuminate a room. First wires pass through an opening in the partition, and are coupled to the power supply circuit board at one end and to the light source at another end, to deliver power to the light source. A lid or cover covers the open rear end enclosing the top cavity, and is secured to the housing. Other embodiments are also described and claimed.
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
F21V 7/22 - Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
F21V 5/04 - Refractors for light sources of lens shape
F21V 23/02 - Arrangement of electric circuit elements in or on lighting devices the elements being transformers or impedances
F21V 29/77 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
F21V 29/507 - Cooling arrangements characterised by the adaptation for cooling of specific components of means for protecting lighting devices from damage, e.g. housings
A housing has a sidewall that surrounds an interior cavity that has an open rear end and an open front end, and is divided by a partition into a top cavity and a bottom cavity. The top cavity extends to the open rear end, the bottom cavity extends to the open front end. A power supply circuit board is inside the top cavity, while a light source is inside the bottom cavity and emits light through the open front end to illuminate a room. First wires pass through an opening in the partition, and are coupled to the power supply circuit board at one end and to the light source at another end, to deliver power to the light source. A lid or cover covers the open rear end enclosing the top cavity, and is secured to the housing. Other embodiments are also described and claimed.
A housing has a sidewall that surrounds an interior cavity that has an open rear end and an open front end, and is divided by a partition into a top cavity and a bottom cavity. The top cavity extends to the open rear end, the bottom cavity extends to the open front end. A power supply circuit board is inside the top cavity, while a light source is inside the bottom cavity and emits light through the open front end to illuminate a room. First wires pass through an opening in the partition, and are coupled to the power supply circuit board at one end and to the light source at another end, to deliver power to the light source. A lid or cover covers the open rear end enclosing the top cavity, and is secured to the housing. Other embodiments are also described and claimed.
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