A direct troffer-style fixture for solid state light sources for use in these fixtures. Embodiments of the present invention provide a direct troffer-style fixture that is particularly well-suited for retrofit structures. The fixture comprises a retrofit troffer assembly that is removably attached within a T grid or pan structure. The retrofit fixture can be installed in two pieces: a first including a lens structure, a back reflector and 2 end reflectors; and the second component including a second portion of the back reflector. An interior space created by the lens structure houses light emitters and in some embodiments, a light engine and/or additional electronics. One or both of the end reflectors may be movable, slidable and/or rotatable, to accommodate installation. The back reflector covers most of the interior surfaces of the troffer fixture to direct more light out of the fixture.
F21V 17/02 - Fixation des parties constitutives des dispositifs d'éclairage, p. ex. des abat-jour, des globes, des réfracteurs, des réflecteurs, des filtres, des écrans, des grilles ou des cages de protection avec possibilité de réglage
F21V 23/00 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage
F21V 5/04 - Réfracteurs pour sources lumineuses de forme lenticulaire
F21V 15/015 - Dispositifs de recouvrement des joints entre des dispositifs d'éclairage adjacentsCapots d'extrémité
F21V 13/04 - Combinaisons de deux sortes d'éléments uniquement les éléments étant des réflecteurs et des réfracteurs
F21V 17/10 - Fixation des parties constitutives des dispositifs d'éclairage, p. ex. des abat-jour, des globes, des réfracteurs, des réflecteurs, des filtres, des écrans, des grilles ou des cages de protection caractérisée par des moyens de fixation spécifiques
F21V 23/02 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage les éléments étant des transformateurs ou des impédances
A low profile lighting module. Devices according to this disclosure can produce a uniform light intensity output profile, limiting the perceived appearance of individual point sources, from direct lighting modules comprising several light emitting diodes. Individual lighting device components are disclosed that can contribute to this uniform profile, including: primary optics, secondary optics, and contoured housing elements. These components can interact with and control emitted light, thus adjusting its pattern. These components can alter the direction of emitted light, providing a more uniform light intensity over a wider range of viewing angle.
H01L 27/15 - Dispositifs consistant en une pluralité de composants semi-conducteurs ou d'autres composants à l'état solide formés dans ou sur un substrat commun comprenant des composants semi-conducteurs avec au moins une barrière de potentiel ou une barrière de surface, spécialement adaptés pour l'émission de lumière
F21V 11/00 - Écrans non couverts par les groupes , , ou
F21K 9/00 - Sources lumineuses utilisant des dispositifs à semi-conducteurs en tant qu’éléments générateurs de lumière, p. ex. utilisant des diodes électroluminescentes [LED] ou des lasers
F21K 9/60 - Agencements optiques intégrés dans la source lumineuse, p. ex. pour améliorer l’indice de rendu des couleurs ou l’extraction de lumière
H01L 33/54 - Encapsulations ayant une forme particulière
F21Y 105/10 - Sources lumineuses planes comprenant un réseau bidimensionnel d’éléments générateurs de lumière ponctuelle
F21Y 103/10 - Sources lumineuses de forme allongée, p. ex. tubes fluorescents comprenant un réseau linéaire d’éléments générateurs de lumière ponctuelle
Frame and lens upgrade kits for lighting fixtures. A frame bracket defines the frame area, which can be rectangular, for example. A lens frame fits just inside the frame bracket with the lens frame being releasably attached thereto. The frame bracket can be constructed from collapsible frame bracket subassemblies. For example, a rectangular frame bracket may be assembled from first and second collapsible frame bracket subassemblies that fan out and lock together to create a rigid frame bracket. The subassemblies each comprise elongated side and edge brackets that are fastened together such that they can pivot about one another. In some embodiments, one side of the lens frame is attached to a corresponding side of the frame bracket with a rotatable clip that allows the lens frame to swing such that its other side can attach to the bracket frame with an attachment latch, which can be magnetic, for example.
F21V 17/10 - Fixation des parties constitutives des dispositifs d'éclairage, p. ex. des abat-jour, des globes, des réfracteurs, des réflecteurs, des filtres, des écrans, des grilles ou des cages de protection caractérisée par des moyens de fixation spécifiques
F16M 13/02 - Autres supports ou appuis pour positionner les appareils ou les objetsMoyens pour maintenir en position les appareils ou objets tenus à la main pour être portés par un autre objet ou lui être fixé, p. ex. à un arbre, une grille, un châssis de fenêtre, une bicyclette
F21V 5/04 - Réfracteurs pour sources lumineuses de forme lenticulaire
A direct troffer-style fixture for solid state light sources and pan structures for use in these fixtures. The fixture comprises a door frame assembly that is attached to the pan. The pan housing is defined by a base and two angled side walls. End caps are attached to the side walls. End reflectors extend at an angle away from the end caps and attach to the base. The end caps, the end reflectors, and the base define compartments at both ends of the housing in which components can be housed. A light board is attached to the base using alignment holes in the base and cutout portions of the end reflectors. The multifunctional end reflectors retain elements within the compartments, provide added structural stability to the pan, aid in aligning a light board, and they reflect light that impinges on them toward the open end of the fixture.
F21S 8/02 - Dispositifs d'éclairage destinés à des installations fixes encastrables, p. ex. plafonniers à spots lumineux
F21V 13/04 - Combinaisons de deux sortes d'éléments uniquement les éléments étant des réflecteurs et des réfracteurs
F21S 9/02 - Dispositifs d'éclairage avec une source d'énergie incorporéeSystèmes utilisant des dispositifs d'éclairage avec une source d'énergie incorporée la source de courant étant une pile ou un accumulateur
F21V 15/015 - Dispositifs de recouvrement des joints entre des dispositifs d'éclairage adjacentsCapots d'extrémité
F21V 23/00 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage
F21V 15/01 - Boîtiers, p. ex. matériau ou assemblage de parties du boîtier
F21Y 103/10 - Sources lumineuses de forme allongée, p. ex. tubes fluorescents comprenant un réseau linéaire d’éléments générateurs de lumière ponctuelle
A solid state lighting fixture with an integrated driver circuit. A housing has a base end and an open end through which light is emitted from the fixture. The reflective interior surface of the fixture and the base define an optical chamber. At least one, and often multiple, light sources are mounted at the fixture base along with the circuitry necessary to drive and/or control the light sources. The drive circuit and the light sources are both located in the optical chamber. A reflective cone fits within the optical chamber such that it covers most of the drive circuit and other components at the base of fixture that might absorb light. The reflective cone is shaped to define a hole that is aligned with the light sources so that light may be emitted through the hole toward the open end of the fixture.
F21V 23/02 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage les éléments étant des transformateurs ou des impédances
H05B 33/08 - Circuits pour faire fonctionner des sources lumineuses électroluminescentes
F21S 8/04 - Dispositifs d'éclairage destinés à des installations fixes destinés uniquement au montage sur un plafond ou sur une structure similaire en porte-à-faux
F21V 3/02 - GlobesVasquesVerres de protection caractérisés par leur forme
F21V 7/22 - Réflecteurs pour sources lumineuses caractérisés par les matériaux, traitements de surface ou revêtements
F21V 23/00 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage
A linear light fixture with gap filler elements. The fixture comprises two primary structural components: a base and a light engine, which may be removably attached. The base comprises a body with end panels at both ends and is mountable to an external structure. The light engine comprises the light sources, an elongated lens, and any other optical elements that tailor the outgoing light to a particular profile. External reflectors are included to further shape the output beam. The reflectors may be shaped to define louvers which direct some of the emitted light in a direction opposite the primary emission direction, e.g., as uplight. The fixtures may be connected in a serial arrangement using a joiner.
F21K 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
F21V 23/00 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage
F21S 8/00 - Dispositifs d'éclairage destinés à des installations fixes
F21V 21/005 - Soutien, suspension ou fixation des dispositifs d'éclairagePoignées pour plusieurs dispositifs d'éclairage disposés bout à bout, c.-à-d. rails de lumière
F21V 15/015 - Dispositifs de recouvrement des joints entre des dispositifs d'éclairage adjacentsCapots d'extrémité
F21V 19/00 - Montage des sources lumineuses ou des supports de sources lumineuses sur ou dans les dispositifs d'éclairage
F21Y 103/10 - Sources lumineuses de forme allongée, p. ex. tubes fluorescents comprenant un réseau linéaire d’éléments générateurs de lumière ponctuelle
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.
F21V 29/74 - Dispositions de refroidissement caractérisées par des éléments passifs de dissipation de chaleur, p. ex. puits thermiques avec ailettes ou lames
F21V 29/75 - Dispositions de refroidissement caractérisées par des éléments passifs de dissipation de chaleur, p. ex. puits thermiques avec ailettes ou lames avec ailettes ou lames ayant des formes, des épaisseurs ou des espacements différents
F21V 29/77 - Dispositions de refroidissement caractérisées par des éléments passifs de dissipation de chaleur, p. ex. puits thermiques avec ailettes ou lames avec ailettes ou lames en plans divergents essentiellement identiques, p. ex. avec une section en forme d’éventail ou d’étoile
A modular fixture that is well-suited for use with solid state light sources, such as LEDs, to provide a surface ambient light (SAL). The fixture comprises two structural components: a housing subassembly and a lighting subassembly. These two subassemblies may be removably attached to operate as a singular fixture. Many different lighting subassemblies may be compatible with a single housing subassembly and vice versa. The housing subassembly comprises a frame that is mountable to an external structure. The lighting subassembly comprises the light sources and optical elements that tailor the light to achieve a particular profile. Electronics necessary to power and control the light sources may be disposed in the lighting subassembly. Various mount mechanisms may be used to attach the fixture to a surface such as a ceiling or a wall. Multiple fixtures can be connected serially to provide an extended linear fixture.
F21V 15/01 - Boîtiers, p. ex. matériau ou assemblage de parties du boîtier
F21V 5/04 - Réfracteurs pour sources lumineuses de forme lenticulaire
F21S 8/00 - Dispositifs d'éclairage destinés à des installations fixes
F21S 8/04 - Dispositifs d'éclairage destinés à des installations fixes destinés uniquement au montage sur un plafond ou sur une structure similaire en porte-à-faux
F21S 8/06 - Dispositifs d'éclairage destinés à des installations fixes destinés uniquement au montage sur un plafond ou sur une structure similaire en porte-à-faux par suspension
F21S 9/02 - Dispositifs d'éclairage avec une source d'énergie incorporéeSystèmes utilisant des dispositifs d'éclairage avec une source d'énergie incorporée la source de courant étant une pile ou un accumulateur
F21V 15/015 - Dispositifs de recouvrement des joints entre des dispositifs d'éclairage adjacentsCapots d'extrémité
F21V 23/00 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage
F21V 23/02 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage les éléments étant des transformateurs ou des impédances
F21S 2/00 - Systèmes de dispositifs d'éclairage non prévus dans les groupes principaux ou , p. ex. à construction modulaire
F21V 21/005 - Soutien, suspension ou fixation des dispositifs d'éclairagePoignées pour plusieurs dispositifs d'éclairage disposés bout à bout, c.-à-d. rails de lumière
F21V 23/04 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage les éléments étant des interrupteurs
F21Y 105/12 - Sources lumineuses planes comprenant un réseau bidimensionnel d’éléments générateurs de lumière ponctuelle caractérisées par la disposition géométrique des éléments générateurs de lumière, p. ex. par la disposition des éléments générateurs de lumière en différents schémas ou densités
F21Y 105/10 - Sources lumineuses planes comprenant un réseau bidimensionnel d’éléments générateurs de lumière ponctuelle
F21Y 103/10 - Sources lumineuses de forme allongée, p. ex. tubes fluorescents comprenant un réseau linéaire d’éléments générateurs de lumière ponctuelle
The fixture includes an elongated back reflector along the longitudinal direction of the fixture and at least one light source mounted to a heat sink structure and arranged to emit at least a portion of light toward the back reflector. The back reflector redirects at least a portion of the light toward an exit lens which 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.
F21V 13/04 - Combinaisons de deux sortes d'éléments uniquement les éléments étant des réflecteurs et des réfracteurs
F21V 29/70 - Dispositions de refroidissement caractérisées par des éléments passifs de dissipation de chaleur, p. ex. puits thermiques
F21S 8/04 - Dispositifs d'éclairage destinés à des installations fixes destinés uniquement au montage sur un plafond ou sur une structure similaire en porte-à-faux
F21V 5/02 - Réfracteurs pour sources lumineuses de forme prismatique
F21V 5/08 - Réfracteurs pour sources lumineuses produisant une distribution de lumière asymétrique
Aluminum high bay lighting fixtures a primary housing; at least one secondary housing partially surrounding a primary housing; a plurality of light emitting elements in thermal contact with the primary housing; a heat spreader plate in thermal contact with the light emitting elements and the primary and secondary housings. At least one of the primary and secondary housings include openings to help dissipate heat from the light source and/or allow at least some of the light from the light emitting elements to be outputted in a direction opposite the main light emitting direction. The shortest distance from a distal end of the primary housing to the light sources is greater than the shortest distance from a distal end of the secondary housing to the light sources.
F21V 29/503 - Dispositions de refroidissement caractérisées par l’adaptation au refroidissement de composants spécifiques de sources lumineuses
F21V 29/507 - Dispositions de refroidissement caractérisées par l’adaptation au refroidissement de composants spécifiques de moyens de protection des dispositifs d’éclairage contre les détériorations, p. ex. boîtiers
F21V 15/01 - Boîtiers, p. ex. matériau ou assemblage de parties du boîtier
F21V 23/00 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage
F21V 29/74 - Dispositions de refroidissement caractérisées par des éléments passifs de dissipation de chaleur, p. ex. puits thermiques avec ailettes ou lames
A direct troffer-style fixture for solid state light sources and pan structures for use in these fixtures. The fixture comprises a door frame assembly that is attached to the pan. The pan housing is defined by a base and two angled side walls. End caps are attached to the side walls. End reflectors extend at an angle away from the end caps and attach to the base. The end caps, the end reflectors, and the base define compartments at both ends of the housing in which components can be housed. A light board is attached to the base using alignment holes in the base and cutout portions of the end reflectors. The multifunctional end reflectors retain elements within the compartments, provide added structural stability to the pan, aid in aligning a light board, and they reflect light that impinges on them toward the open end of the fixture.
F21S 8/04 - Dispositifs d'éclairage destinés à des installations fixes destinés uniquement au montage sur un plafond ou sur une structure similaire en porte-à-faux
F21S 9/02 - Dispositifs d'éclairage avec une source d'énergie incorporéeSystèmes utilisant des dispositifs d'éclairage avec une source d'énergie incorporée la source de courant étant une pile ou un accumulateur
This disclosure relates to suspended linear lighting fixtures that are arranged to accept lighting elements. Lighting fixtures according to the present disclosure comprise at least one body and at least one suspension mechanism. These lighting fixtures can be arranged such that electrical and mechanical connections can be provided at various locations along their length, rather than only at the distal ends of the fixtures. The fixtures can also comprise various connectivity features that allow further arrangements, designs and spatial adjustments. Lighting systems utilizing these fixtures are also disclosed.
F21V 21/00 - Soutien, suspension ou fixation des dispositifs d'éclairagePoignées
F21K 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
F21S 8/06 - Dispositifs d'éclairage destinés à des installations fixes destinés uniquement au montage sur un plafond ou sur une structure similaire en porte-à-faux par suspension
F21V 21/112 - Fixation des dispositifs d'éclairage aux lustres
F21Y 103/00 - Sources lumineuses de forme allongée, p. ex. tubes fluorescents
This disclosure relates to lighting fixtures, such as suspended lighting fixtures. Devices according to the present disclosure provide lighting fixtures capable of emitting in one or more primary directions, while simultaneously emitting in a direction toward a mount surface, reducing undesirable areas of insufficient light and more efficiently illuminating a space. Lighting fixtures disclosed herein can achieve this increase in illumination efficiency in many ways, including utilizing various lighting element arrangements, such as dual-sided lighting elements, and various lens arrangements, such as lens shape affecting the direction of emitted light.
F21V 21/00 - Soutien, suspension ou fixation des dispositifs d'éclairagePoignées
F21S 8/06 - Dispositifs d'éclairage destinés à des installations fixes destinés uniquement au montage sur un plafond ou sur une structure similaire en porte-à-faux par suspension
F21V 3/02 - GlobesVasquesVerres de protection caractérisés par leur forme
F21V 17/16 - Fixation des parties constitutives des dispositifs d'éclairage, p. ex. des abat-jour, des globes, des réfracteurs, des réflecteurs, des filtres, des écrans, des grilles ou des cages de protection caractérisée par des moyens de fixation spécifiques par déformation de parties du dispositif d'éclairageMontage du type à action rapide
F21Y 101/02 - Structure miniature, p. ex. diodes électroluminescentes (LED)
F21Y 103/00 - Sources lumineuses de forme allongée, p. ex. tubes fluorescents
This disclosure relates to retrofit systems and methods for lighting installations, and in particular, to retrofit systems and methods used to retrofit troffer-style lighting installations with LED light sources. Retrofit systems can be used with different light fixtures, but those described are particularly adapted for use with troffer-style fixtures. These retrofit systems can provide the same amount of light as traditional light fixtures already do, for example 1600-4000 lumens or more. The retrofit systems can be used with many different light sources but are particularly well-suited for use with solid state light sources or light engines, such as those utilizing LEDs. Some embodiments of the present invention comprise a mechanical mounting system for installing an LED light engine within an existing lighting system housing or pan, such as a troffer pan, without penetrating the ceiling plenum.
Retrofit systems and methods are disclosed for lighting installations, and in particular, to retrofit systems and methods used to retrofit troffer-style lighting installations with LED light sources. Retrofit systems can be used with different light fixtures, but those described are particularly adapted for use with troffer-style fixtures. These retrofit systems can provide the same amount of light as traditional light fixtures already do, for example 1600-4000 lumens or more. The retrofit systems can be used with many different light sources but are particularly well-suited for use with solid state light sources or light engines, such as those utilizing LEDs. Some embodiments of the present invention comprise a mechanical mounting system for installing an LED light engine within an existing lighting system housing or pan, such as a troffer pan, without penetrating the ceiling plenum.
F21K 9/27 - Sources lumineuses rétrocompatibles pour dispositifs d’éclairage avec deux culots pour chaque source lumineuse, p. ex. pour le remplacement de tubes fluorescents
F21V 21/08 - Dispositifs pour la fixation facile à un endroit voulu
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.
F21V 21/00 - Soutien, suspension ou fixation des dispositifs d'éclairagePoignées
F21K 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
F21S 8/06 - Dispositifs d'éclairage destinés à des installations fixes destinés uniquement au montage sur un plafond ou sur une structure similaire en porte-à-faux par suspension
F21V 21/112 - Fixation des dispositifs d'éclairage aux lustres
F21Y 103/00 - Sources lumineuses de forme allongée, p. ex. tubes fluorescents
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.
F21L 4/00 - Dispositifs d'éclairage électriques avec des accumulateurs ou des piles électriques incorporés
F21V 23/02 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage les éléments étant des transformateurs ou des impédances
F21V 21/00 - Soutien, suspension ou fixation des dispositifs d'éclairagePoignées
F21K 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
F21S 8/06 - Dispositifs d'éclairage destinés à des installations fixes destinés uniquement au montage sur un plafond ou sur une structure similaire en porte-à-faux par suspension
F21V 21/112 - Fixation des dispositifs d'éclairage aux lustres
F21Y 103/00 - Sources lumineuses de forme allongée, p. ex. tubes fluorescents
32.
LED light fixtures having elongated prismatic lenses
A light fixture having at least one light engine comprising a plurality of LEDs arranged on mount surfaces of an elongated mount structure, and an elongated lens mounted over the LEDs so that light emitted from the LEDs interacts with the lens before it escapes the fixture. The elongated lens is shaped to disperse more light in a direction away from an axis normal to the elongated mount structure. The light fixture further comprises a housing and an exit lens attached to the housing to define an interior chamber, the at least one light engine disposed within the interior chamber.
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.
F21S 4/20 - Dispositifs ou systèmes d'éclairage utilisant une guirlande ou une bande de sources lumineuses avec les sources lumineuses maintenues par ou à l'intérieur de supports allongés
F21V 5/04 - Réfracteurs pour sources lumineuses de forme lenticulaire
F21V 3/02 - GlobesVasquesVerres de protection caractérisés par leur forme
F21V 5/02 - Réfracteurs pour sources lumineuses de forme prismatique
F21Y 105/10 - Sources lumineuses planes comprenant un réseau bidimensionnel d’éléments générateurs de lumière ponctuelle
F21K 9/61 - Agencements optiques intégrés dans la source lumineuse, p. ex. pour améliorer l’indice de rendu des couleurs ou l’extraction de lumière en utilisant des guides de lumière
F21Y 103/10 - Sources lumineuses de forme allongée, p. ex. tubes fluorescents comprenant un réseau linéaire d’éléments générateurs de lumière ponctuelle
A light fixture comprising a chamber portion is disclosed. In some embodiments, the fixture comprises a chamber portion shaped to house circuitry required for lighting elements such as light emitting diodes (LEDs) mounted elsewhere in the fixture. In some embodiments, LEDs are mounted facing a back reflector, which in turn reflects light out of a troffer to form an indirect lighting fixture. In some embodiments, light is emitted from one mixing chamber. In some embodiments, light is emitted from two or more mixing chambers. In some embodiments, LEDs are mounted on a heat sink which cooperates with a chamber portion.
F21K 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
F21S 8/02 - Dispositifs d'éclairage destinés à des installations fixes encastrables, p. ex. plafonniers à spots lumineux
F21S 8/04 - Dispositifs d'éclairage destinés à des installations fixes destinés uniquement au montage sur un plafond ou sur une structure similaire en porte-à-faux
F21S 8/06 - Dispositifs d'éclairage destinés à des installations fixes destinés uniquement au montage sur un plafond ou sur une structure similaire en porte-à-faux par suspension
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.
F21V 19/00 - Montage des sources lumineuses ou des supports de sources lumineuses sur ou dans les dispositifs d'éclairage
F21S 2/00 - Systèmes de dispositifs d'éclairage non prévus dans les groupes principaux ou , p. ex. à construction modulaire
F21V 17/00 - Fixation des parties constitutives des dispositifs d'éclairage, p. ex. des abat-jour, des globes, des réfracteurs, des réflecteurs, des filtres, des écrans, des grilles ou des cages de protection
F21V 29/505 - Dispositions de refroidissement caractérisées par l’adaptation au refroidissement de composants spécifiques de réflecteurs
F21Y 101/02 - Structure miniature, p. ex. diodes électroluminescentes (LED)
F21Y 103/00 - Sources lumineuses de forme allongée, p. ex. tubes fluorescents
F21V 29/76 - Dispositions de refroidissement caractérisées par des éléments passifs de dissipation de chaleur, p. ex. puits thermiques avec ailettes ou lames avec ailettes ou lames en plans parallèles essentiellement identiques, p. ex. avec une section en forme de peigne
36.
Low profile lighting module with side emitting LEDs
A low profile lighting module. Devices according to this disclosure can produce a uniform light intensity output profile, limiting the perceived appearance of individual point sources, from direct lighting modules comprising several light emitting diodes. Individual lighting device components are disclosed that can contribute to this uniform profile, including: primary optics, secondary optics, and contoured housing elements. These components can interact with and control emitted light, thus adjusting its pattern. These components can alter the direction of emitted light, providing a more uniform light intensity over a wider range of viewing angle.
H01L 33/00 - DISPOSITIFS À SEMI-CONDUCTEURS NON COUVERTS PAR LA CLASSE - Détails
H01L 27/15 - Dispositifs consistant en une pluralité de composants semi-conducteurs ou d'autres composants à l'état solide formés dans ou sur un substrat commun comprenant des composants semi-conducteurs avec au moins une barrière de potentiel ou une barrière de surface, spécialement adaptés pour l'émission de lumière
F21K 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
A directional lighting fixture having a variable beam angle that is easily adjusted. One or more lighting sources are disposed within a fixture housing. A removable cover is disposed over the open end of the housing. The cover comprises a micro lens structure that defines the beam angle of the light that is emitted from the fixture. The removable cover, or in some configurations portions of the cover, can be easily replaced by the end user to achieve a desired beam angle.
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 LED arrays can be driven by an elevated drive signal to produce a 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 hot spots and the appearance of individual LED colors. A plurality of first diffusers is included, each over a respective LED array. A second diffuser is included over the first diffusers, with the LED light passing through the diffusers prior to emitting from the lighting fixture. The diffusers can have shapes, surfaces or materials to disperse and/or mix the LED light as it emits.
F21S 8/02 - Dispositifs d'éclairage destinés à des installations fixes encastrables, p. ex. plafonniers à spots lumineux
F21S 8/04 - Dispositifs d'éclairage destinés à des installations fixes destinés uniquement au montage sur un plafond ou sur une structure similaire en porte-à-faux
F21V 3/04 - GlobesVasquesVerres de protection caractérisés par les matériaux, traitements de surface ou revêtements
F21Y 105/10 - Sources lumineuses planes comprenant un réseau bidimensionnel d’éléments générateurs de lumière ponctuelle
F21Y 103/10 - Sources lumineuses de forme allongée, p. ex. tubes fluorescents comprenant un réseau linéaire d’éléments générateurs de lumière ponctuelle
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.
F21V 13/14 - Combinaisons de trois sortes d'éléments uniquement les éléments étant des filtres ou des éléments photoluminescents, des réflecteurs et des réfracteurs
F21V 29/71 - Dispositions de refroidissement caractérisées par des éléments passifs de dissipation de chaleur, p. ex. puits thermiques utilisant une combinaison d’éléments séparés interconnectés par des moyens thermo-conducteurs, p. ex. tubes caloporteurs ou barres thermiquement conductrices pour conduire la chaleur entre des éléments séparés de puits thermique
F21V 29/00 - Protection des dispositifs d'éclairage contre les détériorations thermiquesDispositions de refroidissement ou de chauffage spécialement adaptées aux dispositifs ou systèmes d'éclairage
F21S 8/02 - Dispositifs d'éclairage destinés à des installations fixes encastrables, p. ex. plafonniers à spots lumineux
F21S 8/06 - Dispositifs d'éclairage destinés à des installations fixes destinés uniquement au montage sur un plafond ou sur une structure similaire en porte-à-faux par suspension
F21Y 101/02 - Structure miniature, p. ex. diodes électroluminescentes (LED)
F21Y 111/00 - Sources lumineuses de forme non couverte par les groupes
A solid state lighting fixture with an integrated driver circuit. A housing has a base end and an open end through which light is emitted from the fixture. The reflective interior surface of the fixture and the base define an optical chamber. At least one, and often multiple, light sources are mounted at the fixture base along with the circuitry necessary to drive and/or control the light sources. The drive circuit and the light sources are both located in the optical chamber. A reflective cone fits within the optical chamber such that it covers most of the drive circuit and other components at the base of fixture that might absorb light. The reflective cone is shaped to define a hole that is aligned with the light sources so that light may be emitted through the hole toward the open end of the fixture.
F21V 23/02 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage les éléments étant des transformateurs ou des impédances
F21S 8/04 - Dispositifs d'éclairage destinés à des installations fixes destinés uniquement au montage sur un plafond ou sur une structure similaire en porte-à-faux
F21V 3/02 - GlobesVasquesVerres de protection caractérisés par leur forme
F21V 7/22 - Réflecteurs pour sources lumineuses caractérisés par les matériaux, traitements de surface ou revêtements
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.
F21V 29/00 - Protection des dispositifs d'éclairage contre les détériorations thermiquesDispositions de refroidissement ou de chauffage spécialement adaptées aux dispositifs ou systèmes d'éclairage
F21V 7/20 - spécialement adaptée pour faciliter le refroidissement, p.ex. avec des ailettes
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.
F21V 29/00 - Protection des dispositifs d'éclairage contre les détériorations thermiquesDispositions de refroidissement ou de chauffage spécialement adaptées aux dispositifs ou systèmes d'éclairage
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).
F21V 5/02 - Réfracteurs pour sources lumineuses de forme prismatique
F21V 23/02 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage les éléments étant des transformateurs ou des impédances
F21Y 103/10 - Sources lumineuses de forme allongée, p. ex. tubes fluorescents comprenant un réseau linéaire d’éléments générateurs de lumière ponctuelle
F21Y 105/16 - Sources lumineuses planes comprenant un réseau bidimensionnel d’éléments générateurs de lumière ponctuelle caractérisées par la forme d’ensemble du réseau bidimensionnel carrée ou rectangulaire, p. ex. pour les panneaux de lumière
A light assembly fixture comprising a heat pipe to dissipate heat from the light emitting device, such as but not limited to a light emitting diode (LED). The assembly further comprises a housing including a front surface, a light emitting device on a first heat spreader remote from the front surface, a first end of a heat pipe in thermal contact with the first heat spreader and the heat pipe extending towards the front surface such that a second end of the heat pipe is in thermal contact with a second heat spreader that is disposed on the housing, wherein the first heat spreader, heat pipe and second heat spreader are configured to provide a thermal path to dissipate heat from the light emitting device.
F21V 29/00 - Protection des dispositifs d'éclairage contre les détériorations thermiquesDispositions de refroidissement ou de chauffage spécialement adaptées aux dispositifs ou systèmes d'éclairage
F21V 29/71 - Dispositions de refroidissement caractérisées par des éléments passifs de dissipation de chaleur, p. ex. puits thermiques utilisant une combinaison d’éléments séparés interconnectés par des moyens thermo-conducteurs, p. ex. tubes caloporteurs ou barres thermiquement conductrices pour conduire la chaleur entre des éléments séparés de puits thermique
F21V 29/70 - Dispositions de refroidissement caractérisées par des éléments passifs de dissipation de chaleur, p. ex. puits thermiques
F21V 29/503 - Dispositions de refroidissement caractérisées par l’adaptation au refroidissement de composants spécifiques de sources lumineuses
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.
F21V 29/00 - Protection des dispositifs d'éclairage contre les détériorations thermiquesDispositions de refroidissement ou de chauffage spécialement adaptées aux dispositifs ou systèmes d'éclairage
F21S 8/02 - Dispositifs d'éclairage destinés à des installations fixes encastrables, p. ex. plafonniers à spots lumineux
F21Y 103/00 - Sources lumineuses de forme allongée, p. ex. tubes fluorescents
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.
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.
F21V 29/505 - Dispositions de refroidissement caractérisées par l’adaptation au refroidissement de composants spécifiques de réflecteurs
F21V 29/74 - Dispositions de refroidissement caractérisées par des éléments passifs de dissipation de chaleur, p. ex. puits thermiques avec ailettes ou lames
F21V 29/75 - Dispositions de refroidissement caractérisées par des éléments passifs de dissipation de chaleur, p. ex. puits thermiques avec ailettes ou lames avec ailettes ou lames ayant des formes, des épaisseurs ou des espacements différents
F21V 29/77 - Dispositions de refroidissement caractérisées par des éléments passifs de dissipation de chaleur, p. ex. puits thermiques avec ailettes ou lames avec ailettes ou lames en plans divergents essentiellement identiques, p. ex. avec une section en forme d’éventail ou d’étoile
F21K 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
F21Y 101/02 - Structure miniature, p. ex. diodes électroluminescentes (LED)
A wide beam angle (diffuse) luminaire with an efficient multi-source radiative emitter array. Embodiments of the luminaire utilize one or more LEDs disposed around a perimeter of a protective casing. The LEDs are angled to emit into an internal cavity defined by the inner surface of the casing. The placement of the LEDs around the perimeter of the device reduces self-blocking and facilitates heat transfer from the LEDs through the casing or another heat sink and into the ambient. Light impinges on the inner surface and is redirected as useful emission. A diffuse reflective coating may be deposited on the inner surface to mix the light before it is emitted.
LED chip circuits, solid state light engines and SSL luminaires are disclosed that utilize memristors to vary LED chip emission. In different embodiments the resistance of said memristor can be varied to vary the drive signal applied to one or more LED chips, thereby varying the LED chip emission intensity. The present invention can be used in much different arrangement to vary LED chip emission, such as changing the drive signals to LED chips that experience changes in emission intensity at different temperatures or that experience emission intensity depreciation over time.
H03H 7/06 - Réseaux à deux accès sélecteurs de fréquence comprenant des résistances
H01L 45/00 - Dispositifs à l'état solide spécialement adaptés pour le redressement, l'amplification, la production d'oscillations ou la commutation, sans barrière de potentiel ni barrière de surface, p.ex. triodes diélectriques; Dispositifs à effet Ovshinsky; Procédés ou appareils spécialement adaptés à la fabrication ou au traitement de ces dispositifs ou de leurs parties constitutives
H05B 33/08 - Circuits pour faire fonctionner des sources lumineuses électroluminescentes
Solid state luminaires and light engines comprising a first group of solid state emitters comprising a first emitter emitting above the black body locus (BBL) in a CIE diagram, and a second emitter emitting below the BBL. The combination of light from the first and second emitters generates an emission color point within a standard deviation of the BBL. A second group of solid state emitters is included, the combination of light from the first and second groups of emitters causes emission within a standard deviation of the black body locus (BBL), wherein varying the intensity of the second group of emitters causes emission from the first and second groups of emitters to vary within a range of color temperatures while still emitting within the standard deviation of the BBL.
Solid state lighting (SSL) luminaires are disclosed having remote phosphors arranged to minimize heat degradation and to efficiently convert light. One embodiment of an SSL luminaire includes a light emitting diode (LED) mounted in a base. An enclosure is mounted in relation to the base so that light from the LED emits into the enclosure. A remote phosphor is mounted in the enclosure with at least some light from the LED passing into the remote phosphor where at least some of the light is absorbed and re-emitted at a different wavelength and passing through the enclosure. The remote phosphor is mounted a sufficient distance from the LED so substantially no heat from the LED passes into said conversion material, and wherein the remote phosphor has an open compound shape.
Solid state lighting (SSL) luminaries are disclosed wherein the emission intensity of discrete light sources within the SSL luminaire can be varied to produce luminaire light having different characteristics. The present invention can utilize the unique circuit topology of SSL luminaires to vary the emission intensity of different types of LEDs in the luminaire. In some embodiments, the different types of LEDs are connected in respective serial strings, and the intensity of emission of the LEDs in each of the strings can be varied by changing the electrical signal driving the strings. In some of these embodiments, white light is emitted from the SSL luminaire by combining emission from BSY and red LEDs. For these embodiments the color changing solutions according to the present invention can include, as an example, changing color while dimming the luminaire, changing color between daytime and nighttime modes, and changing between most efficient and points in between.
A radiation distribution system designed to produce a batwing distribution. The system may be used with radiative sources emitting in the visible spectrum or in other spectra. The system comprises a specially shaped lens disposed over a radiative source, such as an LED, for example. The lens and source are arranged between two reflector bodies, both of which have an elongated reflective surface that faces the source. The reflector bodies each have two different reflective surfaces that face outward and away from each other. The lens and both reflective surfaces work in concert to redirect a portion of the emitted radiation to create the desired batwing distribution. Several sources may be arranged linearly between a single pair of reflector bodies on a common surface to create a linear array of sources. Likewise, multiple linear arrays may be combined to form a two-dimensional array. In the two-dimensional configuration, linear arrays of sources are disposed on both sides of a reflector body, so that both of the reflective surfaces are utilized.
F21V 13/04 - Combinaisons de deux sortes d'éléments uniquement les éléments étant des réflecteurs et des réfracteurs
F21V 5/04 - Réfracteurs pour sources lumineuses de forme lenticulaire
G02B 27/09 - Mise en forme du faisceau, p. ex. changement de la section transversale, non prévue ailleurs
F21V 29/71 - Dispositions de refroidissement caractérisées par des éléments passifs de dissipation de chaleur, p. ex. puits thermiques utilisant une combinaison d’éléments séparés interconnectés par des moyens thermo-conducteurs, p. ex. tubes caloporteurs ou barres thermiquement conductrices pour conduire la chaleur entre des éléments séparés de puits thermique
F21V 29/76 - Dispositions de refroidissement caractérisées par des éléments passifs de dissipation de chaleur, p. ex. puits thermiques avec ailettes ou lames avec ailettes ou lames en plans parallèles essentiellement identiques, p. ex. avec une section en forme de peigne
F21V 29/00 - Protection des dispositifs d'éclairage contre les détériorations thermiquesDispositions de refroidissement ou de chauffage spécialement adaptées aux dispositifs ou systèmes d'éclairage
F21W 131/103 - Éclairage de plein air ou d'extérieur des rues ou des routes
H01L 33/54 - Encapsulations ayant une forme particulière
F21V 29/505 - Dispositions de refroidissement caractérisées par l’adaptation au refroidissement de composants spécifiques de réflecteurs
In an AC drive circuit for LEDs, a current limiting capacitor connects to an AC source, a first circuit portion, including a first rectifying diode and a first power capacitor, connects between the current limiting capacitor and the source and a second circuit portion, including a second rectifying diode in series with a second power capacitor, is in parallel with the first circuit portion. A first LED is in the first circuit portion in parallel with the first power capacitor, while a second LED in the second circuit portion is in parallel with the second power capacitor. During positive half cycles, the first rectifying diode charges the first power capacitor and drives the first LED. During negative half cycles, the second rectifying diode charges the second power capacitor and drives the second LED.
brevets