Patent application number | Description | Published |
20080278950 | LIGHT FIXTURES AND LIGHTING DEVICES - A lighting device comprises a heat sink, a housing mounted to and/or thermally coupled to the heat sink, a basket assembly attached to the housing, a solid state light emitter thermally coupled to the heat sink, and a baffle assembly attached to the housing. Also, a lighting device comprising a basket assembly and a baffle assembly. In some embodiments, the basket assembly comprises a first member defining a first opening, a second member, a space between the first and second members, and lenses in the opening and in the space. In some embodiments, the heat sink extends farther in a first direction in a first plane than a largest dimension of the housing in any plane which is parallel to the first plane. In some embodiments, at least one additional component (e.g., a power supply module or a junction box) is in contact with the heat sink element. | 11-13-2008 |
20080278952 | Light fixtures and lighting devices - There is provided a light fixture comprising a baffle system and a side reflector, the baffle system comprising at least an outer baffle structure and an inner baffle structure. Also, there is provided a light fixture which comprises at least two recessed concentric square elements, triangular connecting elements and lenses which are recessed from the faces of each of the square elements. In some embodiments, the lighting device comprises at least one solid state light emitter. In some embodiments, the light fixture further comprises at least one lens positioned between at least two respective baffle elements. | 11-13-2008 |
20080278957 | LIGHT FIXTURES AND LIGHTING DEVICES - There is provided a light fixture, comprising a heat sink element and an upper housing mounted to the heat sink element, the heat sink element extending farther in a first direction in a first plane than a largest dimension of the upper housing in any plane parallel to the first plane. In addition, a light fixture, comprising a heat sink element, an upper housing mounted to the heat sink element and an additional component (e.g., a power supply module or a junction box) in contact with the heat sink element. Also, a light fixture, comprising a heat sink element, an upper housing thermally coupled to the heat sink element and at least one solid state light emitter thermally coupled to the heat sink element. | 11-13-2008 |
20080304269 | LIGHTING FIXTURE - A lighting fixture comprises a mounting assembly and two rails. At least one of the rails is slidable relative to the mounting assembly. The rails are each extruded, and have profiles which are substantially similar to each other. Each rail has a male component which fits within a female component of the other. Also, a fixture comprising a mounting assembly comprising an opening through which a light engine housing can be inserted, and (1) a spring clip and/or (2) a clip engagement structure. Also, a fixture comprising a mounting assembly, a first set of rails, and a supplemental rail. The supplemental rail is slidable relative to the light emitting element mounting assembly. Also, a fixture comprising a mounting assembly, a set of rails, and an engagement element having a first portion being in contact with a first rail and a second portion in contact with the second rail. | 12-11-2008 |
20090021841 | OPTICAL ELEMENTS WITH INTERNAL OPTICAL FEATURES AND METHODS OF FABRICATING SAME - An optical element, comprising a substrate and at least one optical film. The substrate is at least partially light-transmissive. The optical film comprises at least a first optical feature and is positioned on a contact surface of the substrate. Also, a lighting device comprising at least one solid state light emitter and such an optical element. Also, methods for making an optical element by molding (e.g., film insert molding), bonding or laminating. | 01-22-2009 |
20090284958 | CONVERSION KIT FOR LIGHTING ASSEMBLIES - Apparatuses and methods for adapting unfinished lighting fixture rough-ins to receive a lighting module, such as an incandescent light bulb or a light-emitting diode (LED) lighting device, are disclosed. According to one aspect, a universal adapter is provided that can be inserted into an existing lighting fixture rough-in, secured in place, and electrically connected to the lighting fixture rough-in. In this way, the adapter stands in place of the finishing section typically used in current lighting fixture designs. As a result, the adapter can modify an unfinished lighting fixture so that it can be used with a variety of lighting elements beyond those designed to be used with the specific configuration of the lighting fixture rough-in. | 11-19-2009 |
20100085759 | ACTIVE THERMAL MANAGEMENT SYSTEMS FOR ENCLOSED LIGHTING AND MODULAR LIGHTING SYSTEMS INCORPORATING THE SAME - A thermal management apparatus includes a lighting assembly and a cooling module that is removably coupled to the lighting assembly. A recessed downlight fixture includes a housing having an open end, an electrical power access port, a cooling module in the housing that is removably coupled to the electrical power access port, and a light source in the housing that is removably coupled to the electrical power access port. The light source is operable to project light through the open end of the housing. A cooling device is provided that includes a male Edison or GU24 port interface and a female Edison or GU 24 port interface. | 04-08-2010 |
20100133578 | SOLID STATE LIGHTING DEVICE WITH IMPROVED HEATSINK - A solid state lighting device includes a device-scale stamped heatsink with a base portion and multiple segments or sidewalls projecting outward from the base portion, and dissipates all steady state thermal load of a solid state emitter to an ambient air environment. The heatsink is in thermal communication with one or more solid state emitters, and may define a cup-like cavity containing a reflector. At least a portion of each one sidewall portion or segment extends in a direction non-parallel to the base portion. A dielectric layer and at least one electrical trace may be deposited over a metallic sheet to form a composite sheet, and the composite sheet may be processed by stamping and/or progressive die shaping to form a heatsink with integral circuitry. At least some segments of a heatsink may be arranged to structurally support a lens and/or reflector associated with a solid state lighting device. | 06-03-2010 |
20100177509 | LIGHTING DEVICE - A lighting device comprising at least one solid state light emitting light source, a power supply and a housing. The light source(s), and optionally also the power supply, is/are positioned within the housing. The power supply is configured to supply power to the light source(s). The housing comprises at least one substantially transparent light passing structure which comprises at least one thermoplastic material. When power is supplied to the light source, at least a portion of the light emitted by the source light passes through the light passing structure. | 07-15-2010 |
20100254128 | REFLECTOR SYSTEM FOR LIGHTING DEVICE - A reflector system for a lighting device. The system uses two reflective surfaces to redirect the light before it is emitted. The light source/sources are disposed at the base of a secondary reflector. The first reflective surface is provided by a primary reflector which is arranged proximate to the source/sources. The primary reflector initially redirects, and in some cases diffuses, light from the sources such that the different wavelengths of light are mixed as they are redirected toward the secondary reflector. The secondary reflector functions primarily to shape the light into a desired output beam. The primary and secondary reflectors may be specular or diffuse and may comprise faceted surfaces. The reflector arrangement allows the source to be placed at the base of the secondary reflector where it may be thermally coupled to a housing or another structure to provide an outlet for heat generated by the sources. | 10-07-2010 |
20100290208 | SOLID STATE LIGHTING DEVICES HAVING REMOTE LUMINESCENT MATERIAL-CONTAINING ELEMENT, AND LIGHTING METHODS - A lighting device comprising a first group of solid state light emitters, an element containing luminescent material and a second group of solid state light emitters spaced from the element. In some embodiments, (1) at least 50% of light emitted by one of the first group does not mix with light emitted by the second group before the light emitted by the second group has entered the element, (2) at least 90% of exiting light emitted by the second group travels farther within the lighting device than 90% of exiting light emitted by the first group, (3) an average distance traveled by exiting light emitted by the second group is farther than an average distance traveled by exiting light emitted by the second group, and/or (4) light emitted by the first group directly exiting the lighting device exits the lighting device without being incident upon the element. | 11-18-2010 |
20100290222 | LIGHTING DEVICE WITH MULTIPLE-REGION REFLECTOR - Lighting devices that comprise a light source and a reflector, the reflector comprising first, second and third reflector regions. In some devices, a first portion of light is reflected by the first region and then by the third reflector region, a second portion of light is reflected by the second region and forms a primary beam, and at least 5% of the first portion of light that is reflected by the third region is within the primary beam of light. In some devices, at least 5% of all light reflected by the first reflector region travels from the first reflector region directly to the third reflector region. In some devices, at least 5% of all light reflected by the third reflector region traveled directly from the first reflector region to the third reflector region. In some devices, the reflector comprises means for providing the features described above. | 11-18-2010 |
20110050070 | LIGHTING DEVICE WITH HEAT DISSIPATION ELEMENTS - A lighting device comprising at least a first light emitter, at least a first heat transfer element, and a plurality of heat dissipation elements. Each heat dissipation element has at least a first region and a second region, the first region being in contact with the first heat transfer element, the second region being closer to the first light emitter than the first region. The first light emitter is thermally coupled to the first heat transfer element. | 03-03-2011 |
20110068701 | SOLID STATE LIGHTING APPARATUS WITH COMPENSATION BYPASS CIRCUITS AND METHODS OF OPERATION THEREOF - A lighting apparatus includes a string of serially-connected light emitting devices and a bypass circuit coupled to first and second nodes of the string and configured to variably conduct a bypass current around at least one of the light-emitting devices responsive to a temperature and/or a total current in the string. In some embodiments, the bypass circuit includes a variable resistance circuit coupled to the first and second nodes of the string and configured to variably conduct the bypass current around the at least one of the light-emitting devices responsive to a control voltage applied to a control node and a compensation circuit coupled to the control node and configured to vary the control voltage responsive to a temperature and/or total string current. | 03-24-2011 |
20110068702 | SOLID STATE LIGHTING APPARATUS WITH CONTROLLABLE BYPASS CIRCUITS AND METHODS OF OPERATION THEREOF - A lighting apparatus includes a string with a plurality of serially-connected light emitting device sets, each set comprising at least one light emitting device. The apparatus further includes at least one controllable bypass circuit configured to variably bypass current around at least one light emitting device of a set of the plurality of light emitting device sets responsive to a control input. The control input may include, for example, a temperature input, a string current sense input and/or an adjustment input. The control input may be varied, for example, to adjust a color point of the string. | 03-24-2011 |
20110069499 | LIGHTING DEVICES AND METHODS OF INSTALLING LIGHT ENGINE HOUSINGS AND/OR TRIM ELEMENTS IN LIGHTING DEVICE HOUSINGS - A lighting device, comprising a housing and at least one mounting clip. The housing comprises an electrical connection region engageable in an electrical receptacle. The mounting clip is pivotable from a first position, where an end region of the mounting clip does not extend beyond a periphery of the housing, to a second position, where the end region extends beyond the housing periphery. Also, a lighting device, comprising a housing, a trim element and at least one mounting clip. The mounting clip is pivotable, such that if the mounting clip is in a second position and then the trim element is rotated, the mounting clip will pivot to a third position, where the mounting clip engages the housing such that the trim element is biased toward a ceiling or other structure in which the lighting device is mounted. Also, methods of installing housings and/or trim elements. | 03-24-2011 |
20110074265 | LIGHTING DEVICE WITH ONE OR MORE REMOVABLE HEAT SINK ELEMENTS - A lighting device comprising at least a first light source and at least one heat sink element that is removable, that comprises an first inner region and an first outer region, that is identical in shape to another heat sink element, that is in thermal contact with a trim element, that is stacked, that is in thermal contact with at least a first portion of a first surface of the trim element, that has a cross-sectional area at a first distance from an axis of a trim element that is larger than at a shorter distance, and/or that maintains a junction temperature of a lighting device at or below a recommended junction temperature. Also, a lighting device comprising at least a first light source, a trim element, a driver sub-assembly and a spacer element positioned between the trim element and the driver sub-assembly. Also, methods of dissipating heat. | 03-31-2011 |
20110075410 | LIGHT EMITTING DIODE (LED) LIGHTING SYSTEMS INCLUDING LOW ABSORPTION, CONTROLLED REFLECTANCE AND DIFFUSION LAYERS - LED lighting systems include LEDs of at least two different colors, a reflective layer and a diffusion layer. The reflective layer has a transmittance-to-reflectance ratio that is configured to homogenize intensity of the light emitted from the LEDs. The diffusion layer is configured to homogenize color uniformity of the light. | 03-31-2011 |
20110089830 | HEAT SINKS AND LAMP INCORPORATING SAME - A lamp comprising a solid state light emitter, the lamp being an A lamp and providing a wall plug efficiency of at least 90 lumens per watt. Also, a lamp comprising a solid state light emitter and a power supply, the emitter being mounted on a heat dissipation element, the dissipation element being spaced from the power supply. Also, a lamp, comprising a solid state light emitter and a heat dissipation element that has a heat dissipation chamber, whereby an ambient medium can enter the chamber, pass through the chamber, and exit. Also, a lamp, comprising a light emissive housing at least one solid state lighting emitter and a first heat dissipation element. Also, a lamp comprising a heat sink comprising a heat dissipation chamber. Also, a lamp comprising first and second heat dissipation elements. Also, a lamp comprising means for creating flow of ambient fluid. | 04-21-2011 |
20110089838 | HEAT SINKS AND LAMP INCORPORATING SAME - A lamp comprising a solid state light emitter, the lamp being an A lamp and providing a wall plug efficiency of at least 90 lumens per watt. Also, a lamp comprising a solid state light emitter and a power supply, the emitter being mounted on a heat dissipation element, the dissipation element being spaced from the power supply. Also, a lamp, comprising a solid state light emitter and a heat dissipation element that has a heat dissipation chamber, whereby an ambient medium can enter the chamber, pass through the chamber, and exit. Also, a lamp, comprising a light emissive housing at least one solid state lighting emitter and a first heat dissipation element. | 04-21-2011 |
20110090686 | Compact Heat Sinks and Solid State Lamp Incorporating Same - A solid state lamp with efficient heat sink arrangement. To provide adequate cooling utilizing a defined form factor, such as that of the A-lamp incandescent bulb, the interior volume is used more efficiently. As one example, a solid state lamp employs a heat sink with inward facing fins. Solid state light sources, such as light emitting diodes (LEDs), are mounted on the exterior of the heat sink. An air path for convective flow is established through the center of the lamp. | 04-21-2011 |
20110096548 | HYBRID REFLECTOR SYSTEM FOR LIGHTING DEVICE - A hybrid reflector system for use in lighting application. The system is particularly well-suited for use with solid state light sources, such as light emitting diodes (LEDs). Embodiments of the system include a bowl-shaped outer reflector and an intermediate reflector disposed inside the bowl and proximate to the light source. The reflectors are arranged to interact with the light emitted from the source to produce a beam having desired characteristics. Some of the light passes through the system without interacting with any of the reflector surfaces. This uncontrolled light, which is already emitting in a useful direction, does not experience optical loss normally associated with one or more reflective bounces. Some of the light emanating from the source at higher angles that would not be emitted within the desired beam angle is reflected by one or both of the reflectors, redirecting that light to achieve a tighter beam. | 04-28-2011 |
20110169031 | SOLID STATE LIGHTING DEVICE WITH IMPROVED HEATSINK - A solid state lighting device includes a device-scale stamped heatsink with a base portion and multiple segments or sidewalls projecting outward from the base portion, and dissipates all steady state thermal load of a solid state emitter to an ambient air environment. The heatsink is in thermal communication with one or more solid state emitters, and may define a cup-like cavity containing a reflector. At least a portion of each one sidewall portion or segment extends in a direction non-parallel to the base portion. A dielectric layer and at least one electrical trace may be deposited over a metallic sheet to form a composite sheet, and the composite sheet may be processed by stamping and/or progressive die shaping to form a heatsink with integral circuitry. At least some segments of a heatsink may be arranged to structurally support a lens and/or reflector associated with a solid state lighting device. | 07-14-2011 |
20110182065 | LIGHTING DEVICE WITH MULTI-CHIP LIGHT EMITTERS, SOLID STATE LIGHT EMITTER SUPPORT MEMBERS AND LIGHTING ELEMENTS - A lighting device in which a solid state light emitter in a first multi-chip light emitter is spatially offset relative to a solid state light emitter in a second multi-chip light emitter. A lighting device comprising first, second and third multi-chip light emitters, in which any solid state light emitter in the second multi-chip light emitter that is spatially offset relative to a first solid state light emitter on the first multi-chip light emitter by less than 10 degrees emits light of a hue that differs from the hue of light emitted by the first solid state light emitter by more than seven MacAdam ellipses. A solid state light emitter support member comprising a center region and at least first, second and third protrusions extending from the center region. A lighting device comprising at least a first housing member, and means for emitting substantially uniform light. | 07-28-2011 |
20110273882 | OPTICAL ELEMENT FOR A LIGHT SOURCE AND LIGHTING SYSTEM USING SAME - An optical element for a light source and a lighting system using the optical element are disclosed. In example embodiments, the optical element includes an entry surface and an exit surface opposite the entry surface. The entry surface includes at least three subsurfaces, wherein each subsurface is disposed to receive light rays leaving light source. Each of the three subsurfaces is geometrically shaped and positioned to receive light rays entering the optical element through that subsurface in order to direct the light passing through the optical element. In some embodiments the optical element includes a concentrator lens disposed in the exit surface. The optical element can also include a mixing treatment. A lighting system can include multiple optical elements, each paired with a light source such as an LED or LED package. | 11-10-2011 |
20110299284 | SOLID STATE LIGHT SOURCE EMITTING WARM LIGHT WITH HIGH CRI - Solid state light sources, lighting devices and lamps arranged to provide emission with a warm temperature and high CRI. One embodiment of a solid state lighting device according to the present invention comprises a light emitting diode (LED) device capable of emitting light in an emission spectrum. A filter arranged so that at least some light from the LED light source passes through it, with the filter filtering at least some of one or more portions of the light source emission spectrum. The resulting light source light has a different temperature but substantially the same CRI after passing through the filter. | 12-08-2011 |
20120019137 | LIGHTING UNIT USING A RETRO-FORMED COMPONENT - An LED lighting system using a retro-formed component is disclosed. Embodiments of the invention make use of a component that has an external form factor of a structural element of a pre-existing light fixture. The component, for example, can be a power supply, or a heat sink with a connector. The component allows an LED lighting unit to be used without having the power supply and/or a heat sink take up space within what a consumer would normally see as the light bulb. In some embodiments the form factor is that of a screw-in socket such as an Edison E-26 socket. A connector or connectors can allow removal of the power supply portion of the lighting unit, or of the LED and possibly an optical element from the power supply. | 01-26-2012 |
20120087137 | LED PACKAGE MOUNT - A light emitting diode package mounting apparatus comprises a heatsink defining a surface comprising one of a male or female connector. An LED package has a base where a portion of the base defines the other of the female or male connector. The connectors engage one another such that a force is exerted on the base that presses the LED package against the surface. To assemble the LED package in the heat sink, the LED package is located on the surface. The LED package and heatsink are moved relative to one another such that the male connector is inserted into the female connector. | 04-12-2012 |
20120092850 | OPTICAL ELEMENT EDGE TREATMENT FOR LIGHTING DEVICE - A lighting device includes an electrically activated emitter, a lumiphoric material spatially segregated from the emitter, and an optical element arranged between the emitter and the lumiphoric material and having at least one peripheral edge, wherein a reflective material is disposed proximate to the at least one peripheral edge and/or wherein the at least one peripheral edge is non-perpendicular to a face of the optical element and arranged to reflect light in a direction toward the lumiphoric material. An optical element for use with a lighting device including a lumiphoric material includes a peripheral edge, wherein a reflective material disposed substantially parallel to the peripheral edge and/or wherein the peripheral edge is non-perpendicular to a face of the optical element and arranged to reflect light in a direction toward the lumiphoric material. | 04-19-2012 |
20120111471 | OPTICAL ELEMENTS WITH INTERNAL OPTICAL FEATURES AND METHODS OF FABRICATING SAME - An optical element, comprising a substrate and at least one optical film. The substrate is at least partially light-transmissive. The optical film comprises at least a first optical feature and is positioned on a contact surface of the substrate. Also, a lighting device comprising at least one solid state light emitter and such an optical element. Also, methods for making an optical element by molding (e.g., film insert molding), bonding or laminating. | 05-10-2012 |
20120112614 | LIGHTING DEVICE WITH SPATIALLY SEGREGATED PRIMARY AND SECONDARY EMITTERS - A lighting device includes at least one first electrically activated emitter, at least one lumiphor support element comprising a lumiphoric material spatially segregated from the first electrically activated emitter and arranged to receive at least a portion of emissions from the first electrically activated emitter, and at least one second electrically activated emitter disposed on or adjacent to the at least one lumiphor support element. First and second electrically activated emitters having different peak wavelengths may be in conductive with first and second device-scale heat sinks, respectively. | 05-10-2012 |
20120112661 | LIGHTING DEVICE WITH MULTIPLE EMITTERS AND REMOTE LUMIPHOR - A lighting device including a plurality of electrically activated emitters having different peak wavelengths, at least one remote lumiphor arranged to receive at least some emissions from one of the emitters, and a primary electrically activated emitter spatially segregated and/or thermally insulated from a secondary electrically activated emitter. A lighting device including a plurality of electrically activated emitters spatially segregated from one another having different peak wavelengths, at least one lumiphor spatially segregated from one of the emitters, and a control device independently connected to each emitter or group of emitters. A method of producing a lighting device including a plurality of independently controllable electrically activated emitters. | 05-10-2012 |
20120140461 | TROFFER-STYLE OPTICAL ASSEMBLY - A troffer-style fixture. The fixture is particularly well-suited for use with solid state light sources. The troffer comprises a light engine unit surrounded by a reflective pan. An elongated heat sink comprises a mount surface for light sources. An elongated lens is mounted on or above the heat sink. The mount surface is designed to accommodate the light emitters which may come on prefabricated a light strip. One or more reflectors extend out away from the heat sink on the mount surface side. A lens plate is mounted to proximate to the heat sink and extends out to the edge of the reflector(s). An interior cavity is at least partially defined by the reflector(s), the lens plates, and the heat sink. One or more light sources disposed along the heat sink mount surface emit light into the interior cavity where it can be mixed and/or shaped before it is emitted. | 06-07-2012 |
20120140462 | HIGH EFFICIENCY TOTAL INTERNAL REFLECTION OPTIC FOR SOLID STATE LIGHTING LUMINAIRES - Optical elements having components made from high refractive index materials (RI≦1.6) and lamp assemblies incorporating such elements. Various optical elements, such as total internal reflection lenses, can be fabricated from materials having a higher index of refraction than materials typically used in such elements. The compact optical elements have at least one internal reflection surface that directs radiant energy (e.g., light) from a receiving end to a transmitting end. By using a high refractive index material, a lens can be fabricated that directs a greater portion of the light emitted from a source into the lens toward the transmitting end of the lens. Thus, less of the light spills out of the lens at a surface where emission is not intended, reducing the number of lossy bounces needed to direct the light in a particular direction. | 06-07-2012 |
20120195033 | LIGHTING DEVICES AND METHODS OF INSTALLING LIGHT ENGINE HOUSINGS AND/OR TRIM ELEMENTS IN LIGHTING DEVICE HOUSINGS - A lighting device, comprising a housing and at least one mounting clip. The housing comprises an electrical connection region engageable in an electrical receptacle. The mounting clip is pivotable from a first position, where an end region of the mounting clip does not extend beyond a periphery of the housing, to a second position, where the end region extends beyond the housing periphery. Also, a lighting device, comprising a housing, a trim element and at least one mounting clip. The mounting clip is pivotable, such that if the mounting clip is in a second position and then the trim element is rotated, the mounting clip will pivot to a third position, where the mounting clip engages the housing such that the trim element is biased toward a ceiling or other structure in which the lighting device is mounted. Also, methods of installing housings and/or trim elements. | 08-02-2012 |
20120206911 | LIGHTING DEVICES, FIXTURE STRUCTURES AND COMPONENTS FOR USE THEREIN - In some embodiments, a lighting device comprising two or more light sources and an optical device configured to enhance uniformity of light emitted from the light sources and emerging from a surface of the optical device, an average distance between light sources less than one half of the square root of the area of the surface divided by the number of light sources. In some embodiments, a fixture structure comprising a reflective structure and a heat conductor in contact with the reflective structure and covering not more than 30 percent of the surface area of the reflective structure. In some embodiments, a lighting device comprising a fixture structure, at least one light source mounted on one substrate, and at least one light source mounted on another substrate. Other fixture structures and lighting devices. | 08-16-2012 |
20120235560 | SOLID STATE LIGHTING SYSTEMS USING OLEDS - Solid state lighting systems using organic LEDs (OLEDs) are disclosed. Embodiments of the present invention provide a solid state lighting system and a luminaire wherein substantially white light is generated by a combination of an organic LED (OLED) and another type of solid state emitter. The other type of solid state emitter may be, for example, a conventional LED made from inorganic materials. The OLED is positioned so that substantially white light is emitted from the lighting system by mixing light from the two types of sources. In some embodiments, a dichroic mirror can also be used at the opening of a mixing chamber to prevent absorption of light from the OLED back into the mixing chamber or conventional LEDs within the mixing chamber. | 09-20-2012 |
20120236537 | LIGHTING DEVICE WITH LOW GLARE AND HIGH LIGHT LEVEL UNIFORMITY - A lighting device, comprising at least a first light control element, at least a first light source positioned so that at least a portion of light emitted by the first light source passes through at least a portion of the first light control element and at least a first luminescent material, at least a portion of the first luminescent material being spaced from the first light source, the first luminescent material being positioned so that at least a portion of light emitted by the first light source excites at least a portion of the first luminescent material. | 09-20-2012 |
20120243234 | LIGHT FIXTURES, LIGHTING DEVICES, AND COMPONENTS FOR THE SAME - A diffuser for a lighting device comprises a diffuser region, a hook element and a nose element. A light fixture comprises a housing with an opening and a diffuser as described above, in which the nose element extends through the opening, optionally further comprising an accessory including at least one spring element engaging the hook element. A light fixture structure comprises a housing defining an opening and an first attachment element comprising a nose element, a hook element and a connection region, and optionally further comprising a diffuser engaging a first portion of the hook element, and/or an accessory which engages a second portion of the hook element. An eyeball accessory comprises first and second housing elements pivotably attached to each other. An accessory for a light fixture comprises a housing member and a spring element engageable with a fixture. | 09-27-2012 |
20120257384 | LIGHT FIXTURES AND LIGHTING DEVICES - A lighting device comprises a heat sink, a housing mounted to and/or thermally coupled to the heat sink, a basket assembly attached to the housing, a solid state light emitter thermally coupled to the heat sink, and a baffle assembly attached to the housing. Also, a lighting device comprising a basket assembly and a baffle assembly. In some embodiments, the basket assembly comprises a first member defining a first opening, a second member, a space between the first and second members, and lenses in the opening and in the space. In some embodiments, the heat sink extends farther in a first direction in a first plane than a largest dimension of the housing in any plane which is parallel to the first plane. In some embodiments, at least one additional component (e.g., a power supply module or a junction box) is in contact with the heat sink element. | 10-11-2012 |
20120262902 | LED LUMINAIRE INCLUDING A THIN PHOSPHOR LAYER APPLIED TO A REMOTE REFLECTOR - A luminaire including a thin phosphor layer applied to a remote reflector is disclosed. In some embodiments of the luminaire, LEDs illuminate and activate a thin remote phosphor coating applied to a reflective substrate. In some embodiments, the LED light source includes at least one LED with a GaN emitting layer. The LEDs can be packaged with or without a local phosphor. The thin remote phosphor can include red, red/orange, yellow, green or cyan emitting phosphor so that the luminaire produces white light. The thin remote phosphor layer can include two or more different color emitting phosphors. In some embodiments, the luminaire is a light fixture including a diffuser lens assembly and a pan to support the fixture when mounted in a ceiling. | 10-18-2012 |
20120268936 | HEAT SINK STRUCTURES, LIGHTING ELEMENTS AND LAMPS INCORPORATING SAME, AND METHODS OF MAKING SAME - In some embodiments, a lighting element comprising at least first and second solid state light emitters, a first heat sink structure with a fold region between first and second heat sink regions, and at least one light emitter on each of the heat sink regions, and methods of making. In some embodiments, a lighting element, comprising plural heat sink regions on respective regions of a flexible circuit board, and plural light emitters on respective regions of the flexible circuit board, and methods of making. In some embodiments, heat sink structures comprising plural heat sink regions and a circuit board with plural regions, and lighting elements comprising them. In some embodiments, a heat sink structure, comprising plural heat sink regions and an internal flow guide structure, and lighting elements comprising same. Also, other lighting elements, lamps and heat sink structures. | 10-25-2012 |
20120287601 | HIGH EFFICIENCY LED LAMP - A high-efficiency LED lamp is disclosed. Embodiments of the present invention provide a high-efficiency, high output solid-state lamp. The lamp includes an LED assembly, and an optical element or diffuser disposed to receive light from the LED assembly. The optical element includes a primary exit surface, wherein the primary exit surface is at least about 1.5 inches from the LED assembly. In example embodiments, the optical element is roughly cylindrical in shape, but can take other shapes and be made from various materials. An LED lamp according to some embodiments of the invention has an efficiency of at least about 150 lumens per watt. In some embodiments, the lamp has a light output of at least 1200 lumens. In some embodiments, the LED lamp produces light with a color rendering index (CRI) of at least 90 and a warm white color. | 11-15-2012 |
20120287619 | HIGH EFFICIENCY LED LAMP - A high-efficiency LED lamp is disclosed. Embodiments of the present invention provide a high-efficiency, high output solid-state lamp. The lamp includes an LED assembly, and an optical element or diffuser disposed to receive light from the LED assembly. The optical element includes a primary exit surface for the light, wherein the primary exit surface is at least about 1.5 inches from the LED assembly. In example embodiments, the optical element is roughly cylindrical in shape. An LED lamp according to some embodiments of the invention has an efficiency of at least 150 lumens per watt. In some embodiments, the lamp has a light output of at least 1200 lumens. In some embodiments, the LED lamp produces light with a color rendering index (CRI) of at least 90 and a correlated color temperature of from 2800 to 3000 K. | 11-15-2012 |
20120293062 | UV STABLE OPTICAL ELEMENT AND LED LAMP USING SAME - A UV stable optical element and an LED lamp using such an element are disclosed. Embodiments of the invention include an optical element made at least in part from an inherently UV stable polyester, so that consumable UV-stabilizing additives are not needed. Thus, the substrate of the optical element can maintain transparency and other desirable characteristics over longer periods of time in the face of high ultraviolet light exposure. In some embodiments, the optical element includes the inherently UV stable polyester and a phosphor for remote wavelength conversion. In some embodiments, the UV stable polyester is an aromatic polyester such as polyarylate. The optical element according to example embodiments of the invention can be used in an LED lamp. | 11-22-2012 |
20120327650 | DIRECT AND BACK VIEW LED LIGHTING SYSTEM - A direct and back view LED lighting system is disclosed. Embodiments of a lighting system and example light fixture are described. LED devices provide the light source. The LED devices can be positioned with a heatsink at or near the top of the system proximate to a back reflector. In example embodiments, the LED devices emit light downward. The system can be used in a troffer style fixture with a support structure and a pan. The system or fixture can have a lens arrangement including lenses, lens plates or sections with differing optical characteristics, including a partially reflective lens plate or section that passes and diffuses some light from the LED light source, but reflects some light back to the back reflector. Additional lenses or lens plates serve as diffusers. | 12-27-2012 |
20120328299 | APPARATUS AND METHODS FOR OPTICAL CONTROL OF LIGHTING DEVICES - A lighting apparatus includes at least one light emitting device configured to receive an optical signal from a source external to the lighting apparatus and a control circuit coupled to the at least one light emitting device and configured to adjust a light output of the at least one light emitting device responsive to the received optical signal. The at least one light-emitting device may include at least one light-emitting diode (LED) configured to receive the optical signal, and the control circuit may include a detector circuit coupled to the at least one LED and configured to detect the received optical signal. | 12-27-2012 |
20130002157 | Semiconductor Light Emitting Devices Having Selectable and/or Adjustable Color Points and Related Methods - Light emitting devices include a first string of LEDs that emit light having a color point that is within at least eight MacAdam ellipses of a first blue-shifted-yellow region on the 1931 CIE Chromaticity Diagram, a second string of LEDs that emit light having color point that is within at least eight MacAdam ellipses of a second blue-shifted-green region on the 1931 CIE Chromaticity Diagram, and a third light source that emits radiation having a dominant wavelength between 600 and 720 nm. A drive circuit supplies respective drive currents to the first string of LEDs, the second string of LEDs and the third light source, at least two of which are independently controllable. | 01-03-2013 |
20130003363 | REVERSE TOTAL INTERNAL REFLECTION FEATURES IN LINEAR PROFILE FOR LIGHTING APPLICATIONS - An elongated lens profile having reverse total internal reflection (TIR) features that improve light extraction when the lens is used in conjunction with a plurality of light emitters. Solid state light emitters, such as LEDs, are arranged proximate to the elongated lens along a longitudinal axis of the lens body. The emitters, which may be grouped in clusters, emit toward a receiving surface of the lens. The receiving surface includes a plurality of reverse TIR features, also disposed along the longitudinal axis. These features may be defined by a series of recessed areas spaced along the longitudinal axis to correspond with the light emitters which can protrude into the negative space created by the recessed features. The recessed features may have more than one shape. The reverse TIR features improve light output uniformity, reducing hot spots along the lens, and improve output efficiency. | 01-03-2013 |
20130010476 | LENS AND TRIM ATTACHMENT STRUCTURE FOR SOLID STATE DOWNLIGHTS - A lighting device such as a solid state downlight includes a lens structure with at least one integrally formed trim retaining element, and a trim structure including at least one lens structure engaging element, wherein the at least one lens structure engaging element is arranged to removably engage the least one trim retaining element, such as by rotating the trim structure. A generally cylindrical portion of the trim structure may be arranged to surround a central portion of the lens structure, thereby reducing or eliminating light piping and eliminating visible attachment elements for the trim structure. | 01-10-2013 |
20130016516 | LIGHTING DEVICES AND METHODS OF INSTALLING LIGHT ENGINE HOUSINGS AND/OR TRIM ELEMENTS IN LIGHTING DEVICE HOUSINGS - A lighting device, comprising a housing and at least one mounting clip. The housing comprises an electrical connection region engageable in an electrical receptacle. The mounting clip is pivotable from a first position, where an end region of the mounting clip does not extend beyond a periphery of the housing, to a second position, where the end region extends beyond the housing periphery. Also, a lighting device, comprising a housing, a trim element and at least one mounting clip. The mounting clip is pivotable, such that if the mounting clip is in a second position and then the trim element is rotated, the mounting clip will pivot to a third position, where the mounting clip engages the housing such that the trim element is biased toward a ceiling or other structure in which the lighting device is mounted. Also, methods of installing housings and/or trim elements. | 01-17-2013 |
20130021777 | LIGHT FIXTURE WITH COEXTRUDED COMPONENTS - A light fixture with coextruded components is disclosed. Embodiments of the present invention provide a solid-state light fixture suitable for use in commercial environments. A light fixture according to example embodiments of the invention includes an LED light source and a coextruded optical assembly. In some embodiments, the reflector portion of the assembly includes a thin skin of reflective material. In some embodiments, the assembly includes an interlocking mechanical interface between the reflector and lens portions of the assembly. In some embodiments, the lens portion of the assembly includes two lens plates. In some embodiments, a longer fixture can be assembled by using two, coextruded portions of an optical assembly, where these portions are adapted to be joined end-to-end. Reinforcing members can be used in the reflector and lens assembly. | 01-24-2013 |
20130021803 | LIGHT FIXTURE WITH CO-FORMED PLENUM COMPONENT - A light fixture with co-formed plenum component is disclosed. Embodiments of the invention provide troffer-style recessed solid state fixture using a highly reflective plastic reflector. In at least some embodiments, the plastic reflector can meet the additional requirements placed on mechanical components exposed to the space above the ceiling plane in plenum return ceiling applications. Example embodiments include a light fixture with an LED light source and a reflector that is coextruded from a plenum rated substrate and a reflective material, for example, a plenum rated plastic substrate and a diffuse, white reflective material. In some embodiments, the plenum rated substrate includes polyetherimide, a polyphenylene ether/polystyrene blend, polycarbonate, polycarbonate copolymer, or a combination of the foregoing. | 01-24-2013 |
20130057141 | LIGHTING DEVICE - A lighting device comprising a solid state light emitter and a light mixing element, in which at least ten of light emitted by the emitter that enters the mixing element is reflected within the mixing element, and the mixing element is not larger than 16 mm. Also, a lighting device comprising an emitter and a mixing element comprising first and second regions. Also, a lighting device comprising a light emitter and a mixing element, in which a light exit region of the mixing element has a surface area between about 50% to about 300% of a surface area of a light entrance region of the mixing element. Also, a lighting device comprising a light emitter, a mixing element and a light output shaping element which defines an exit aperture having a dimension that is at least three times a largest dimension of the first light mixing element. | 03-07-2013 |
20130063924 | SOLID STATE LIGHTING DEVICES HAVING REMOTE LUMINESCENT MATERIAL-CONTAINING ELEMENT, AND LIGHTING METHODS - A lighting device comprising a first group of solid state light emitters, an element containing luminescent material and a second group of solid state light emitters spaced from the element. In some embodiments, (1) at least 50% of light emitted by one of the first group does not mix with light emitted by the second group before the light emitted by the second group has entered the element, (2) at least 90% of exiting light emitted by the second group travels farther within the lighting device than 90% of exiting light emitted by the first group, (3) an average distance traveled by exiting light emitted by the second group is farther than an average distance traveled by exiting light emitted by the second group, and/or (4) light emitted by the first group directly exiting the lighting device exits the lighting device without being incident upon the element. | 03-14-2013 |
20130070461 | SPECULAR REFLECTOR AND LED LAMPS USING SAME - A specular reflector and LED lamps using embodiments of the reflector are disclosed. Embodiments of the invention provide a reflector for solid state lamps. The reflector can be a specular reflector. The reflector includes a rigid, polymeric substrate and sputtered metal applied to the substrate. In some embodiments, the metal is silver. In some embodiments, the metal is applied without an intervening base coat. In some embodiments, the substrate is made from or includes an aromatic polyester such as polyarylate. The reflector can include a discontinuous or irregular surface yet still exhibit very high overall reflectivity and efficiency because the metal can be applied without an intervening base coat. In some embodiments, the reflector is used in lamps having a retroreflective optical design. | 03-21-2013 |
20130100658 | SOLID STATE LIGHTING DEVICE - A lighting device is disclosed comprising a plurality of light emitters and a heat spreader plate thermally coupled to the plurality of light emitters, wherein the plurality of solid state emitters provides a thermal load upon application of an operating current and voltage, the heat spreader plate dissipating substantially all of the thermal load to an ambient air environment. | 04-25-2013 |
20130114242 | SOLID STATE LIGHTING DEVICE INCLUDING MULTIPLE WAVELENGTH CONVERSION MATERIALS - A solid state lighting device includes a solid state light emitter combined with a lumiphor to form a solid state light emitting component, at least one lumiphor spatially segregated from the light emitting component, and another lumiphor and/or solid state light emitter. The solid state light emitting component may include a blue shifted yellow component with a higher color temperature, but in combination with the other elements the aggregated emissions from the lighting device have a lower color temperature. Multiple white or near-white components may be provided and arranged to stimulate one or more lumiphors spatially segregated therefrom. | 05-09-2013 |
20130176722 | LIGHT FIXTURE WITH TEXTURED REFLECTOR - A light fixture with a textured reflector surface is disclosed. Embodiments of the present invention provide for a lighting system in which LEDs face, and the majority of light form the LED light source is incident on, a textured surface of a back reflector while producing minimal glare and minimal imaging of the light source. Such a reflector may be referred to as a retro-reflector. The reflector for the light fixture can be made from a relatively inexpensive material such as polycarbonate, which without texturing has a specular or semi-specular surface. This material can be used alone or with a metal substrate to form the reflector. The textured surface can be textured by way of an imprinted pattern or by roughening, and can be extruded. A prismatic texture may be used. The texturing can also be spatially varied. | 07-11-2013 |
20130194820 | REDUCED CONTRAST LED LIGHTING SYSTEM - A reduced contrast LED lighting system is disclosed. A plurality optical elements in a fixture is arranged to produce a light pattern with reduced visible contrast between the various areas where light can be perceived leaving the fixture. In some embodiments of the invention the LED light source is disposed at the reflector, and in some such embodiments a partially reflective lens plate is disposed opposite the LED light source. In some embodiments the LED light source is placed opposite the reflector. The lighting system can include a lens arrangement with a partially reflective lens plate connected to a heatsink, or two lens plates adjacent to the LED light source and the heatsink. The fixture can include a plurality of light pipes or slots to direct light into spaces between the lens plates and the heatsink. | 08-01-2013 |
20130201654 | LIGHTING DEVICE AND METHOD OF MAKING LIGHTING DEVICE - A lighting device comprises a solid state light emitter on a circuit board, and an optic held in place relative to the first circuit board, a voltage drop across the emitter at least 60 volts. A lighting device comprises a solid state light emitter on a first circuit board, an optic held in place relative to the first circuit board, and a non-isolated power supply. A lighting device comprises a solid state light emitter on a first circuit board, and a flame-rated optic held in place relative to the first circuit board. An optic, comprising a translucent region, a first dimension not larger than about 10 mm, a second dimension not larger than 15 mm. A flame-rated optic comprising a translucent region, structure configured to hold the optic in place relative to a circuit board. Methods of making lighting devices. | 08-08-2013 |
20130201670 | MULTIPLE PANEL TROFFER-STYLE FIXTURE - Lighting fixtures are described utilizing a plurality of light sources, or light engines, which are mounted together in a modular fashion in the light fixture opening. In some embodiments, the plurality of light sources can comprise lighting panels that together form the overall fixture light source. The present invention is particularly applicable to troffer-style lighting fixtures that can be arranged with a plurality of lighting panels arranged in the troffer opening to illuminate the space below the troffer. Embodiments of the present invention can also utilize solid state light sources for the lighting panels, with some embodiments utilizing light emitting diodes (LEDs). | 08-08-2013 |
20130201674 | SEMI-INDIRECT AISLE LIGHTING FIXTURE - A modular lighting fixture assembly. Multiple light pods can be removably mounted on both lateral sides of a mechanical thermal element, such as an elongated heat sink. The pods can be easily removed for cleaning, maintenance, and transport, for example. A light strip including multiple LEDs can be mounted to a surface of the heat sink on both sides. Each pod has a portion cutaway such that when the pods are mounted to the heat sink, the cutaway portions align with the light strips. Thus, when mounted, the light strip can be adjacent to or protrude into an interior cavity of the pod. The interior surfaces of the pods are shaped to redirect light in a particular output profile. The assembly may be mounted to a ceiling and used as an overhead fixture designed to efficiently light an aisle in a retail space or a storage facility, for example. | 08-08-2013 |
20130201679 | LIGHTING DEVICE AND METHOD OF INSTALLING LIGHT EMITTER - A lighting device comprising a junction box, a trim element and a solid state light emitter, at least a portion of a space defined by regions of the trim element within a space defined by regions of the junction box, the light emitter within the trim element space. A lighting device comprising a trim element (with at least two regions) and a solid state light emitter, in which at least a first part of the first region can be positioned in a first space with the second region outside the first space, the light emitter within the first part. A lighting device, comprising a trim element (which comprises at least two regions), part of an exterior of which defines a first space, at least a first part of the first region within the first space, a solid state light emitter within the first part. Methods of installing a light emitter. | 08-08-2013 |
20130208457 | TROFFER-STYLE LIGHTING FIXTURE WITH SPECULAR REFLECTOR - An indirect troffer-style lighting fixture that is particularly well-suited for use with solid state light sources. An elongated heat sink with a mount surface for light sources runs longitudinally along the fixture. To facilitate heat dissipation, a portion of the heat sink is exposed to the ambient room environment. An elongated specular reflector also runs along the device proximate to the heat sink. The heat sink and the specular reflector are mounted such that a spatial relationship is maintained. Some of the light from the sources impinges directly on the specular reflector and is redirected towards a back surface. The back surface defines a luminous surface that receives light directly from the sources and redirected light from the specular reflector. The back surface and the heat sink mechanically obscure any images of the light sources in the specular reflector such that they are not visible in a viewing area. | 08-15-2013 |
20130229786 | LIGHTING DEVICE WITH REMOTE LUMIPHOR AND NON-PLANAR OPTICAL ELEMENT - A lighting device includes an electrically activated emitter, a lumiphoric material spatially segregated from the emitter, and an optical element arranged between the emitter and the lumiphoric material, wherein at least a portion of the optical element is curved or includes a non-planar shape. The optical element may include a reflective material disposed proximate to at least one peripheral edge and/or may include at least one peripheral edge that is non-perpendicular to a face of the optical element and arranged to reflect light in a direction toward the lumiphoric material. | 09-05-2013 |
20130250567 | MODULAR INDIRECT TROFFER - A modular troffer-style lighting fixture. The fixture is particularly well-suited for use with solid state light sources, such as LEDs. Embodiments comprise a pan structure designed to house one or more modular light engine units within a central opening. Each light engine unit includes a reflective cup that can house several light sources on an interior mount surface. The cup is positioned proximate to a back reflector such that its open end faces a portion of the back reflector. The back reflector is shaped to define an interior chamber where light can be mixed and redirected. At least one elongated leg extends away from the reflective cup toward an edge of said back reflector. The leg(s) are used to mount the reflective cup relative to the back reflector and may also be used as a heat sink and/or an additional mount surface for light sources. | 09-26-2013 |
20130265750 | LIGHTING DEVICE AND METHOD OF INSTALLING LIGHT EMITTER - A lighting device configured to be held relative to a space extending from an opening in a first surface. A distance between first and second emitters and/or a dimension of a lens is/are larger than a largest dimension of the opening and/or a largest dimension of a power supply. Also, a bracket comprising a body member and at least two mounting clips, the body member configured to be attached to a lighting device, each mounting clip pivotable about respective pivot axes at least from a first position, where a first end region of the clip does not extend farther from an axis of the body member than all portions of the body member, to a second position, where the first end region of the clip extends farther from the axis of the body member than all portions of the body member. Also, a lighting device comprising a removable bracket. | 10-10-2013 |
20130265751 | LENSED TROFFER-STYLE LIGHT FIXTURE - Troffer-style lighting fixtures are disclosed having troffer housing with reflective regions, and respective light emitting diode (LED) arrays mounted in the reflective regions. The LED arrays are arranged to emit out of said troffer housing to illuminate a room below the troffer fixture. The LED arrays can be driven by an elevated drive signal to produce a relatively high luminous flux. The light fixtures according to the present invention can have lenses and diffusers over the arrays arranged to mix and disperse light from the light source to reduce or eliminate hot spots and to reduce or eliminate the appearance of the different LED colors. A plurality of first diffusers are included, each of which is over a respective one of the LED arrays. A second diffuser is included over the first diffusers, with the LED light passing through the first and second diffusers prior to emitting from the lighting fixture. The first and second diffusers can have shapes, surfaces or materials to disperse and/or mix the LED light as it emits from said fixtures. | 10-10-2013 |
20130271981 | LED LAMP - A lamp has an optically transmissive enclosure and a base. A tower extends from the base into the enclosure and supports an LED assembly in the enclosure. The LED assembly comprises a plurality of LEDs operable to emit light when energized through an electrical path from the base. The tower and the LED assembly are arranged such that the plurality of LEDs are disposed about the periphery of the tower in a band and face outwardly toward the enclosure to create a source of the light that appears as a glowing filament. The tower forms part of a heat sink that transmits heat from the LED assembly to the ambient environment. The LED assembly has a three-dimensional shape. An electrical interconnect connects a conductor to the heat sink where the conductor is in the electrical path between the LED assembly and the base. | 10-17-2013 |
20130271989 | GAS COOLED LED LAMP - In one embodiment, a lamp comprises an optically transmissive enclosure. An LED array is disposed in the optically transmissive enclosure operable to emit light when energized through an electrical connection. A gas is contained in the enclosure to provide thermal coupling to the LED array. The gas may include oxygen. | 10-17-2013 |
20130271990 | GAS COOLED LED LAMP - In one embodiment, a lamp comprises an optically transmissive enclosure. An LED array is disposed in the optically transmissive enclosure operable to emit light when energized through an electrical connection. A gas is contained in the enclosure to provide thermal coupling to the LED array. The gas may include oxygen. | 10-17-2013 |
20130271991 | LED LAMP - A lamp has an optically transmissive enclosure and a base. A tower extends from the base into the enclosure and supports an LED assembly in the enclosure. The LED assembly comprises a plurality of LEDs operable to emit light when energized through an electrical path from the base. The tower and the LED assembly are arranged such that the plurality of LEDs are disposed about the periphery of the tower in a band and face outwardly toward the enclosure to create a source of the light that appears as a glowing filament. The tower forms part of a heat sink that transmits heat from the LED assembly to the ambient environment. The LED assembly has a three-dimensional shape. An electrical interconnect connects a conductor to the heat sink where the conductor is in the electrical path between the LED assembly and the base. | 10-17-2013 |
20130279159 | DIRECT AISLE LIGHTER - A direct lighting fixture that is well-suited for use with solid state light sources, such as LEDs, and particularly useful for lighting aisles in commercial and industrial environments. An elongated housing comprises several integral elements including a heat sink, opposing side reflectors, and a mount surface. A plurality of light sources is disposed on the mount surface. Each light source or cluster of sources has an optical element such as a lens over it to redirect a portion of the light emitted from the sources in a desired direction, for example, to collimate the light. Reflective elements are placed on both sides of each light source or cluster to redirect light that is initially emitted in a longitudinal direction. The fixture may comprise multiple elongated housings connected together and aligned in parallel along the longitudinal direction. The fixture may also be scalable. | 10-24-2013 |
20130279161 | PARABOLIC TROFFER-STYLE LIGHT FIXTURE - A parabolic troffer-style light fixture. The fixtures are sized to fit in, mount to, or suspend from a ceiling, such as being mounted in a conventional ceiling T-grid, for example. The fixture comprises a troffer housing that may be sized to fit in or rest on the T-grid, with the housing having a shape and size similar to those used for conventional fluorescent troffer lighting fixtures. The fixtures comprise a plurality of reflective louvers arranged in a grid that divides the fixture open end into a number of fixture regions with at least one functional louver providing a back side mount surface for light sources, for example, light emitting diodes. The functional louver mount surface faces a reflective back surface designed to redirect impinging light out of the fixture and into the lighted area. | 10-24-2013 |
20130279175 | LED LAMP - A lamp has an optically transmissive enclosure and a base defining a longitudinal axis of the lamp that extends from the base to the free end of the enclosure. An LED assembly is positioned in the optically transmissive enclosure. The LED assembly includes LEDs operable to emit light when energized through an electrical path from the base. The LED assembly is arranged such that the plurality of LEDs face perpendicularly to the longitudinal axis of the lamp. The emission profile of the LEDs being at least 120 degrees FWHM. | 10-24-2013 |
20130294092 | LED LAMP - A lamp has an optically transmissive enclosure and a base defining a longitudinal axis of the lamp extending from the base to the free end of the enclosure. A heat sink is at least partially located in the enclosure and includes a tower that extends along the longitudinal axis of the lamp. An LED assembly is positioned in the optically transmissive enclosure. The LED assembly comprises a lead frame circuit or a flex circuit where LEDs are attached to the circuits. The lead frame and flex circuit are formed into a three-dimensional shape and are thermally coupled to the tower. | 11-07-2013 |
20130301252 | GAS COOLED LED LAMP - In one embodiment, a lamp comprises an optically transmissive enclosure. An LED array is disposed in the optically transmissive enclosure operable to emit light when energized through an electrical connection. A gas is contained in the enclosure to provide thermal coupling to the LED array. A board supports lamp electronics for the lamp and is located in the enclosure. The LED array is mounted to the board and LEDs are mounted on a submount formed to have a three dimensional shape. The board is electrically coupled to the LED array and the submount may be thermally coupled to the gas for dissipating heat from the plurality of LEDs. | 11-14-2013 |
20130316564 | FIXTURES, APPARATUSES, AND RELATED METHODS FOR PROVIDING LOAD BEARING CONNECTIONS FOR LIGHTING DEVICES - Fixtures, apparatuses, and related methods are provided that provide for a non-Edison connection for receiving a lamp housing of a lighting device having a non-Edison connector. The fixture can include a fixture housing and a non-Edison socket securable to the fixture housing. The fixture can also include an engagement device for engaging a lamp housing of a lighting device that has a non-Edison connector upon insertion of the lamp housing into the fixture housing and engaging the non-Edison socket. | 11-28-2013 |
20140036497 | LED LAMP - A lamp comprises an enclosure comprising a reflector and a lens where the reflector is made of thermally conductive material. A base is coupled to the enclosure. An LED is located in the enclosure and emits light when energized through an electrical path from the base. A heat sink comprises a heat dissipating portion that may be at least partially exposed to the ambient environment and a heat conducting portion that is thermally coupled to the LED. The reflector is thermally coupled to the heat sink and is exposed to the exterior of the lamp such that heat from the heat sink may be dissipated to the ambient environment at least partially through the reflector. | 02-06-2014 |
20140043804 | LINEAR LED LAMP - A linear LED lamp is disclosed. Embodiments of the invention can provide an LED-based replacement lamp for a linear or “tube-type” bulb or a bulb with a linear filament or element. By filling the void within the lamp with an optically transmissive fluid to cool the LEDs without the use of a traditional heat sink, the light blocking effects of such a heat sink can be avoided. Thus, the LED replacement lamp can emit light in a substantially omnidirectional pattern. In some embodiments, the optically transmissive fluid medium is a liquid. In some embodiments, the optically transmissive fluid medium is a gel. An index matching medium can be used as the optically transmissive fluid medium. A color mixing treatment can optionally be included to eliminate color tints in cases where multiple LEDs of different colors are used to produce white light. | 02-13-2014 |
20140078715 | HIGH EFFICIENCY LIGHTING DEVICE INCLUDING ONE OR MORE SOLID STATE LIGHT EMITTERS, AND METHOD OF LIGHTING - A lighting device comprising first and second groups of solid state light emitters, that emit light having approximate dominant wavelength (in nm) of 441-448 (or 442-450, 444-455, 444-446, 442-445 or 444-452) and 555 nm to 585 nm, respectively. If the first and second groups are illuminated, a mixture of light would, in the absence of any additional light, have a color point within one or more of first, second, third, fourth and fifth areas on the 1931 CIE Chromaticity Diagram. In some embodiment, the lighting device further comprises a third group that emits light having approximate dominant wavelength (in nm) of 600-640 (or 605-610, 605-607, 600-606, 602-606 or 615-620). Also, methods of lighting. | 03-20-2014 |
20140078727 | LED RETROFIT LENS FOR FLUORESCENT TUBE - Light fixtures having light bar elements therein. In order to mimic the size and appearance of fluorescent bulbs in existing troffer-style and surface-mount fixtures, LEDs are may be arranged on light bars with integrated lenses to both diffuse the light and shape the output beam. One or more LEDs can be mounted, sometimes in clusters, along the length of a base of the light bar which can then be inserted into a fixture. An elongated lens is mounted to the base over the LEDs so that light emitted from the LEDs interacts with the lens before it escapes the fixture. These elongated lenses may be extruded from a diffusive material, for example, and can be shaped in various ways. For example, the lenses may be shaped to disperse more light to the sides, i.e., in a direction away from a normal axis that is perpendicular to the base. | 03-20-2014 |
20140078728 | LENSES AND LIGHT ENGINE UNITS FOR LIGHT FIXTURES - Embodiments of the present invention provide light fixtures having lenses and light engine units for use therein. To mimic the size and appearance of fluorescent bulbs in existing fixtures, LEDs are may be arranged on light bars or mount surfaces with integrated lenses to diffuse the light and shape the output beam. One or more LEDs can be mounted along the length of a base of the light engine which can then be inserted into a fixture. An elongated lens is mounted to the base over the LEDs so that light emitted from the LEDs interacts with the lens before it escapes the fixture. These lenses may be extruded from a diffusive material and can be shaped in various ways. For example, the lenses may be shaped to disperse more light to the sides, i.e., in a direction away from a normal axis that is perpendicular to the base. | 03-20-2014 |
20140111984 | BEAM SHAPING LENS AND LED LIGHTING SYSTEM USING SAME - A beam shaping lens and an LED lighting system are disclosed. The lens according to example embodiments can concentrate or spread light, depending on the specific embodiment used. The lens according to example embodiments of the invention includes repeated concentric rings of refractive features, with either a constant or gradient feature angle. These features may include substantially triangular concentric rings. These features are located on the interior face of the lens, facing the LED source. In some embodiments, the exterior or exit surface of the lens includes texturing. A lens according to example embodiments of the invention can be used with various fixtures. Light enters the lens through the entry surface including the concentric rings, and exits the fixture through a textured exit surface opposite the entry surface. | 04-24-2014 |
20140126196 | INTEGRATED LINEAR LIGHT ENGINE - This disclosure relates to light engines for use in lighting fixtures, such as troffer-style lighting fixtures. Light engines according to the present disclosure have integrated features that eliminate the need for additional components such as a Printed Circuit Board (PCB), a heat sink, a cover portion, a lens and/or a reflective element. Devices according to this disclosure can comprise a rigid body, conductive elements arranged into electrical pathways and light sources such as light emitting diodes (LEDs). Devices according to this disclosure can further comprise integrated cover, lens and/or reflective element features. Methods for the manufacture of such devices are also disclosed. | 05-08-2014 |
20140126197 | INTEGRATED LINEAR LIGHT ENGINE - This disclosure relates to light engines for use in lighting fixtures, such as troffer-style lighting fixtures. Light engines according to the present disclosure have integrated features that eliminate the need for additional components such as a Printed Circuit Board (PCB), a heat sink, a cover portion, a lens and/or a reflective element. Devices according to this disclosure can comprise a rigid body, conductive elements arranged into electrical pathways and light sources such as light emitting diodes (LEDs). Devices according to this disclosure can further comprise integrated cover, lens and/or reflective element features. Methods for the manufacture of such devices are also disclosed. | 05-08-2014 |
20140153233 | SOLID STATE LIGHTING DEVICE - A lighting device is disclosed comprising a plurality of light emitters and a heat spreader plate thermally coupled to the plurality of light emitters, wherein the plurality of solid state emitters provides a thermal load upon application of an operating current and voltage, the heat spreader plate dissipating substantially all of the thermal load to an ambient air environment. | 06-05-2014 |
20140167621 | LIGHT FIXTURES, SYSTEMS FOR CONTROLLING LIGHT FIXTURES, AND METHODS OF CONTROLLING FIXTURES AND METHODS OF CONTROLLING LIGHTING CONTROL SYSTEMS - A fixture comprising a light sensor and an actuator for assigning the fixture to at least one zone. A fixture comprising a light source, a motion sensor and a light sensor. A fixture comprising a motion sensor, a light sensor and a wireless transmitter (optionally also a wireless receiver). A fixture configured to detect light brightness values over a time-span, and identify a period of time with smallest average brightness. A fixture configured to dim at a first rate when a motion sensor senses no motion for a designated period of time, and optionally also configured to brighten at a second rate when the motion sensor detects motion. A fixture configured to dim to not less than a designated percentage unless motion is detected during the dimming. A lighting control system, comprising fixtures and an actuator configured to assign fixtures to zones. Also, other lighting control systems and methods. | 06-19-2014 |
20140191653 | PROTECTIVE DIFFUSIVE COATING FOR LED LAMP - The present disclosure discloses LED lamps and enclosures comprising light transparent polymer coatings comprising light diffusing particles as well as methods for providing improved luminous intensity distribution. More particularly, the present disclosure relates to enclosures comprising light-transparent polymer coatings comprising a light diffusing particles on at least one surfaces of the enclosure of an LED lamp. | 07-10-2014 |
20140239794 | GAS COOLED LED LAMP - In one embodiment, a lamp comprises an optically transmissive enclosure. An LED array is disposed in the optically transmissive enclosure operable to emit light when energized through an electrical connection. A gas is contained in the enclosure to provide thermal coupling to the LED array. The gas may include oxygen. | 08-28-2014 |
20140268721 | LINEAR SOLID STATE LIGHTING FIXTURE WITH ASYMMETRIC DISTRIBUTION - A linear solid state lighting fixture with asymmetric distribution. The fixture comprises an elongated back reflector along the longitudinal direction of the fixture. At least one light source is arranged to emit toward the back reflector. The source(s) are mounted to a heat sink structure such that at least a portion of light emitted from the source(s) first impinges on the back reflector which redirects at least a portion of the light toward an exit lens. The exit lens interacts with the light as it is emitted from the fixture. Both the shape of the individual fixture elements (e.g., the back reflector and the exit lens) and the arrangement of these elements provide an asymmetrical light output distribution. Various mount mechanisms may be used to attach the fixture to a surface such as a ceiling or a wall, or the fixture may be suspended from a in a pendant configuration. | 09-18-2014 |
20140268826 | LED LAMP AND HEAT SINK - A lamp has an optically transmissive enclosure and a base. At least one LED is located in the enclosure and are operable to emit light when energized through an electrical path from the base. A heat sink comprises a heat dissipating portion having a first part that is located inside of the enclosure and that is thermally coupled to the LED and a second part that is exposed to the ambient environment. The second part comprises a plurality of stems connected to the first part where each stem supports a first overhang that extends over a portion of the enclosure and a second overhang that extends over a portion of the base. | 09-18-2014 |