Patent application number | Description | Published |
20130176721 | LIGHT FIXTURE WITH TEXTURED REFLECTOR - A light fixture with a textured reflector 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 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. Further, a diffuse white layer to provide color mixing or prevent glare and reflections is not needed. The textured reflector 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 |
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 |
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 |
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 |
20140211496 | CONSOLIDATED TROFFER - A dropped-ceiling lighting system having a reflector positioned in an opening in a grid used to suspend a dropped ceiling, a lighting device including a light source mounted adjacent to the reflector, a structural support securing the lighting device to the grid, and a power source for the lighting device. Also discloses is a dropped-ceiling lighting system comprised of a reflector attached to a plenum barrier positioned in an opening in a grid used to suspend a dropped ceiling, a power source extends from a first edge of the plenum barrier to a second edge of the plenum barrier, and a light source is mounted to the power source. | 07-31-2014 |
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 |
Patent application number | Description | Published |
20140212090 | Optical Waveguides - An optical waveguide includes a coupling optic and a waveguide body. According to one embodiment, the body includes a first curved surface that extends between an input surface and an end surface and a second surface opposite the first surface. The input surface has a first thickness disposed between the first and second surfaces and the end surface has a second thickness disposed between the first and second surfaces less than the first thickness. | 07-31-2014 |
20140268875 | Shaped Optical Waveguide Bodies - Disclosed is an optical waveguide body having a first surface that includes one or more tapered portions displaced between an input surface and an end surface or edge of the waveguide body. A second surface displaced from and opposite the first surface may also include one or more tapered portions between the input surface wherein the furthest tapered portions of the first and second surface forms and end surface or edge. | 09-18-2014 |
20140270672 | OPTICAL WAVEGUIDE BODY - An optical waveguide body includes a first layer of optically transmissive material and a second layer of optically transmissive material in contact with the first layer. At least one of the first and second layers is tapered and the first layer has a first index of refraction and the second layer has a second index of refraction less than the first index of refraction and the first and second indices of refraction are both greater than about 1.0. | 09-18-2014 |
20140347885 | Optical Waveguide Bodies and Luminaires Utilizing Same - According to one aspect, a luminaire comprises a waveguide body including a central section and first and second separate side sections extending away from the central section along first and second opposed directions, respectively. The central section includes a coupling portion and the waveguide body has a length and includes a plurality of light extraction features that extract light out of the side sections. At least one LED is disposed adjacent the coupling portion and is operated by a power circuit to produce light that is directed into the waveguide body by the coupling portion. At least one structural member extends along the length of the waveguide body for supporting the waveguide body and encloses at least one of the power circuit and the at least one LED. | 11-27-2014 |
20150055369 | LUMINAIRES UTILIZING EDGE COUPLING - A luminaire includes at least first and second waveguides. The first waveguide has a first coupling surface extending between a first surface and a second surface opposite the first surface, and the second waveguide has a second coupling surface extending between a third surface and a fourth surface opposite the third surface. The first and second coupling surfaces define a coupling cavity. The luminaire further includes at least one light source within the coupling cavity. | 02-26-2015 |
20150177439 | Optical Waveguide Bodies and Luminaires Utilizing Same - A waveguide body comprises a central section, first and second side sections, and a coupling portion located in the central section. Each of said side sections extend away from the central section along opposing first and second directions, respectively. The coupling portion includes an elongate coupling cavity symmetric about a plane extending in a third direction transverse to the first and second directions and configured to receive a light source. The coupling portion includes a control surface configured to collimate a portion of light emitted from the light source into at least one substantially collimated ray group. Light is emitted above and below the waveguide body. A portion of the light is emitted above and below the waveguide body at an angle other than parallel to an optical axis of the light source. | 06-25-2015 |
20150192742 | Extraction Film for Optical Waveguide and Method of Producing Same - An optical waveguide includes a waveguide body and a film disposed on a surface of the waveguide body. The film includes a base and a plurality of undercut light extraction elements disposed between the base and the surface. | 07-09-2015 |
20160047969 | Optical Waveguide Body - An optical waveguide body includes first and second pluralities of light extraction features disposed on a first side of the waveguide body and adapted to direct light out of the waveguide body through a second side of the waveguide body opposite the first side. Each of the first plurality of light extraction features has a linear shape and each of the second plurality of light extraction features has at least one of a piecewise linear shape and a nonlinear shape. The piecewise linear shape comprises two adjacent planar surfaces with an angle therebetween of at least about 30 and at most about 180 degrees. The waveguide body further has a light coupling cavity. | 02-18-2016 |
20160124135 | OPTICAL WAVEGUIDE BODIES AND LUMINAIRES UTILIZING SAME - A waveguide body comprises a length from a first end to a second end. The waveguide body further comprises a central section extending along the entire length of the waveguide body and comprising a first thickness. First and second opposed side sections extend away from the central section along the length of the waveguide body and comprise second and third thicknesses, respectively, less than the first thickness. A coupling portion is located in the central section, wherein the coupling portion comprises first and second coupling surfaces defining at least in part an elongate coupling cavity extending along the length of the waveguide body. The coupling portion further comprises first and second control surfaces, and the first and second coupling surfaces are configured to direct light onto the first and second control surfaces. The first and second control surfaces are configured to direct light into at least one of the first and second side sections. The side sections comprise optical features to extract light out opposing sides of the at least one side section as the light propagates through the at least one side section. | 05-05-2016 |
Patent application number | Description | Published |
20090261785 | METHOD FOR MANAGING A MODULAR POWER SOURCE - Disclosed is a method for management of a modular power source including the steps of setting a first operation threshold, selecting a module | 10-22-2009 |
20090263708 | SYSTEM AND METHOD OF INTEGRATED THERMAL MANAGEMENT FOR A MULTI-CELL BATTERY PACK - Disclosed is a multi-cell battery pack system that includes a plurality of cylindrical cells; a cradle with an interior surface that defines a channel extending through the length of the cradle and an exterior surface that mechanically positions each of the cells radially around and parallel to the channel and exchanges heat with the cells by extending around of the circumference of the cylindrical cell and substantially extending between the two opposing end surfaces of the cell; a heat conductor that resides at least partially within the channel and exchanges heat with the interior surface of the cradle; and a heat exchanger that exchanges heat with the heat conductor, wherein the cradle, the heat conductor, and the heat exchanger cooperate to exchange heat between the cells and the heat exchanger. | 10-22-2009 |
20100133030 | FRAME FOR A RIDE-ON VEHICLE HAVING A PLURALITY OF BATTERY PACKS - In one embodiment, the invention is a frame for a ride-on vehicle having at least one front wheel, at least one rear wheel, and a plurality of substantially similar battery packs. The frame defines a central plane and includes a front end located adjacent to the front wheel(s), a rear end located adjacent to the rear wheel(s), and a lattice structure that extends substantially between the front end and the rear end. The lattice structure includes a first portion that includes battery pack mounts that secure a first subset of the battery packs arranged in two layers, and includes a second portion that includes battery pack mounts that secure a second subset of the batter packs arranged in a single layer. The lattice structure also defines a truss that mechanically couples the front wheel(s) to the rear wheel(s). | 06-03-2010 |
20100136405 | BATTERY PACK WITH OPTIMIZED MECHANICAL, ELECTRICAL, AND THERMAL MANAGEMENT - Disclosed is a multi-cell battery pack system with integrated thermal and electrical management that includes a plurality of cells, a plurality of cradles that each define a channel that extends through the length of the cradle and having an external surface that mechanically positions each of the cells radially around and parallel to the channel, that exchanges heat with the cells and that electrically couples with each of the cells, and an endplate that, when the cradle is mechanically coupled to the endplate, the channel of the cradle is connected to a fluid circuit that routes thermally conductive fluid through the channel to exchange heat with the channel and the cells are connected to an electrical circuit. | 06-03-2010 |
Patent application number | Description | Published |
20110262785 | BATTERY MODULE - A battery module that includes a battery unit composed of a plurality of flat cells and having an end face, a container with an end piece that encloses the battery unit, and a damping assembly disposed between the end face and the end piece. The damping assembly includes a pressure plate, coupled to the end face, that distributes a force substantially equally over the end face. The damping assembly further includes a damping mechanism that damps battery unit oscillations within the container and applies the force to the pressure plate. Coupling the end plate to the damping mechanism compresses the damping mechanism, and causes the damping mechanism to exert a reactionary force against the pressure plate. Furthermore, the damping assembly compresses and substantially suspends the battery unit within the container, such that one face of the battery unit does not substantially contact the container interior. | 10-27-2011 |
20130164578 | BATTERY MODULE - A modular battery module that includes a plurality of substantially identical cartridges, a chassis, and a compression member, wherein each cartridge includes a heat sink with a thermal management channel; a prismatic cell coupled to the heat sink; and a first and a second manifold fluidly coupled to the thermal management channel, wherein the first and second manifolds form opposing edges of a frame, wherein the frame supports the edges of the heat sink. The plurality of cartridges is coupled together in the thickness direction to form a stack with a first and a second end. The chassis is formed from a first end plate, a second end plate, and the plurality of frames, wherein the first and second end plates cap the ends of the stack. The compression member couples the end plates and cartridges together, wherein the compression member applies a compressive force over a face of the batteries. | 06-27-2013 |