Class / Patent application number | Description | Number of patent applications / Date published |
359591000 | BUILDING INTERIOR ILLUMINATION WITH REFLECTED, REFRACTED OR PREDETERMINED ANGLE OF ENTRANCE OF OUTSIDE LIGHT | 73 |
20120268825 | LIGHT SHELF FOR BUILDINGS - In an embodiment, a light shelf of the present invention includes at least one panel assembly for reflecting daylight into a space; and at least two structural elements for holding the panel assembly, wherein the structural elements include a spine component having a proximal end, a distal end, and a longitudinal axis therebetween; a first mounting component for installing on a structural member and for engaging the proximal end of the spine component; a second mounting component for engaging the distal end of the spine component; and a sleeve component having at least one indentation for holding a side of the panel assembly. | 10-25-2012 |
20130279008 | DUAL-STAGE SUNLIGHT REDIRECTION SYSTEM - A system providing consistent and intense sunlight to light-guiding structures for redirecting sunlight to the interior of a building is presented. One aspect of the inventive subject matter includes an illumination system comprising a solar redirector and at least one optical converter. The solar redirector can be configured to extend outward from a wall of a building and to redirect sunlight to exterior sections of the wall below the solar redirector. The optical converter can be configured to mount on at least one of the exterior sections of the wall and to receive the redirected sunlight and distribute the redirected sunlight to an interior of the building. | 10-24-2013 |
20130293963 | COLOR CORRECTION OF DAYLIGHT - The present application generally relates to techniques and equipment for color correction of natural daylight. More particularly, the present application relates to color correction of daylight entering the interior of a structure to maintain a substantially constant color temperature over a period of time through deployment of an opto-luminescent material in a daylighting device. The color correction through deployment of an opto-luminescent material and/or color filter in a daylighting device preferably maintains high lumen intensity. | 11-07-2013 |
20130301134 | Daylight Harvesting Shelf and Method of Improving Interior Natural Light - A method and device for improving natural lighting within buildings is provided. The device comprises a controllable shelf having an upper, specular reflective surface for directing natural light into interior spaces and against interior ceilings. The shelves can be static or pivotable to redirect light based on the day and time of year. The pivotable shelf can be rotated downward or upwards to change the angle with which the light is reflected into the adjacent window, while its position is below the window and along the exterior of the building. This improves interior natural lighting and reduces electrical lighting costs using either a static shelf or movable shelf, wherein the assembly is deployable in a commercial or residential environment without blocking any naturally entering light through the window itself. | 11-14-2013 |
20130314795 | TUBULAR DAYLIGHTING SYSTEM - An improved tubular daylighting system comprises a plurality of tubular shaft sections connected to a skylight lens for transmitting light through the shaft sections to the interior of a building. Adjoining top and bottom shaft sections have different diameters to enable one to be inserted into the other, the top shaft section having a plurality of tabs, the bottom section having a plurality of slots which register with the tabs of the top shaft section, such that selectively bending the tabs outwardly or inwardly from the shaft wall of the top shaft section through the slots of the bottom shaft section interconnects the top and bottom shaft sections in coaxial alignment. In one embodiment an inverted dome diffuser is mounted below the skylight lens atop the shaft sections to diffuse light entering the shaft sections. | 11-28-2013 |
20140085728 | Dual-Stage Sunlight Redirection System - A system providing consistent and intense sunlight to light-guiding structures for redirecting sunlight to the interior of a building is presented. One aspect of the inventive subject matter includes an illumination system comprising a solar redirector and at least one optical converter. The solar redirector can be configured to extend outward from a wall of a building and to redirect sunlight to exterior sections of the wall below the solar redirector. The optical converter can be configured to mount on at least one of the exterior sections of the wall and to receive the redirected sunlight and distribute the redirected sunlight to an interior of the building. | 03-27-2014 |
20140126062 | SUNLIGHT COUPLER AND SUNLIGHT SYSTEM COMPRISING THEREOF - A sunlight coupler is provided, the sunlight coupler may include a beam integrator configured to concentrate beams of sunlight, which may be incident from a plurality of optical fibers, in the form of a single beam, a triplet lens focusing the concentrated beam on a specific position, and an optical fiber provided for transmission of the focused sunlight. The optical fiber may be a thermally-diffusion expand core fiber. | 05-08-2014 |
20140198390 | DUAL-SIDED DAYLIGHT REDIRECTING FILM - Dual-sided daylight redirecting films include an optical substrate with two solar light redirecting layers disposed on the major surfaces of the optical substrate. The light redirecting layers are microstructured surfaces forming a plurality of prism structures. At least one of the microstructured surfaces is an ordered arrangement of a plurality of asymmetric refractive prisms, and the two solar light redirecting layers are not identical or mirror images. Articles may be prepared that include the dual-sided daylight redirecting film and one or more glazing substrates. | 07-17-2014 |
20160069524 | WINDOW GLASS - A window glass includes an incident surface, an emergent surface opposite to the incident surface, a bottom surface, and a top surface opposite to the bottom surface. The incident surface and the emergent surface are interconnected between the top surface and the bottom surface. A plurality of sawteeth is defined on the emergent surface. Each sawtooth includes a first surface adjacent to the top surface and a second surface adjacent to the bottom surface. In each sawtooth, an angle between the first surface and the incident surface is over 90 degrees. The second surface and the incident surface cooperatively define an acute angle. The acute angle increases from the top surface down to the bottom surface and causes the redirection of early morning sunlight up to a ceiling of a room or building containing the window glass. | 03-10-2016 |
20160076252 | Passive Skylight Dome Configured to Increase Light To Increase Collection At Low Sun Elevation Angles and to Reduce Light At High Sun Elevation Angles - The present subject matter comprises a simple, passive skylight dome with relatively tall partially vertical sides comprising partially transparent material which diffuses the transmitted light, and a mostly opaque sun shade near the top of the relatively tall partially vertical sides. The partially vertical sides are able to better intercept sunlight from low sun elevation angles than conventional horizontal skylights. The mostly opaque sun shade is able to block sunlight from high sun elevation angles to prevent such sunlight from entering the building below the dome. By enhancing the collection of low-sun-elevation-angle light, the subject matter improves the daylight performance of the skylight early and late in the day, and all day in the winter months. By reducing the collection of high-sun-elevation-angle light, the subject matter reduces the solar heat gain near solar noon in the summer months, thereby reducing air conditioning loads and related costs. | 03-17-2016 |
359592000 | Unitary light transmitting member comprising plural reflecting or refracting elements | 30 |
20080266664 | Liquid light pipe with an aplanatic imaging system and coupled non-imaging light concentrator - An optical system for a solar lighting device to provide highly concentrated sunlight to interior spaces with minimal disruption of building envelope. The optical system includes an aplanatic optical imaging system mounted on a dual-axis sun tracker, a non-imaging solar concentrator coupled to the aplanatic system, a liquid light pipe to convey the very intense solar flux to the interior of a building, a diffusing light fixture to spread the daylight into the interior space, and a control system to regulate the light output to a constant and desired level. | 10-30-2008 |
20090009870 | DAYLIGHTING FILM AND WINDOW EQUIPPED THEREWITH - The present invention is to provide a daylighting film that can provide incident sunlight from a window to indoor spots such as the ceiling and visibility from the indoors to the outdoors, and can easily be placed on the window, and also to provide the window that is equipped with the daylighting film. The daylighting film of the present invention contains a translucent support | 01-08-2009 |
20100067114 | Direct Beam Solar Light System - A direct beam solar lighting system for collecting and distributing sunlight into a room. The system includes a rotatable solar collector head to receive sunlight and to reflect the sunlight downward into a transition tube having a reflective interior surface. The light-concentrating transition tube reflects sunlight into a reflective light tube which directs the reflected sunlight through a plenum space into the room. The system includes a drive mechanism for rotating the rotatable solar collector, and a light fixture at end of the light tube to disburse said reflected sunlight onto a ceiling and a wall in the room. In an embodiment the system includes one or more homogenizing reflectors within the solar collector for collecting the sunlight and directing the sunlight more uniformly over the aperture of the transition tube. In an alternative embodiment, the solar collector includes a rotatable tiltable mirror for providing two-axis tracking. | 03-18-2010 |
20100128349 | LIGHT-DIFFUSING GRATING - The invention relates to a transparent substrate comprising at its surface a grating of lines of at least 200 light-diffusing elements, said elements being separated by domains with a different refractive index from that of the elements, the distance d between centers of gravity of neighboring elements varying in a non-monotonic manner from one edge of the grating to the other, so that for any group of 50 successive elements, the distance d between the centers of gravity of neighboring elements of said group is at least once greater than and at least once less than the mean distance dm of distances d between centers of gravity of neighboring elements of said group, dm lying between 75 nm and 200 μm. This substrate is transparent in direct vision and redirects the light while diffusing it without iridescence in a daylighting application. | 05-27-2010 |
20100177394 | ARRAY OF LIGHT-DIFFUSING SUB-GRATING - The invention relates to a transparent substrate comprising, on its surface, a light-diffusing array comprising at least 10 juxtaposed sub-gratings of parallel lines of features, said features being separated by domains with a refractive index differing from that of the features, each sub-grating comprising at least 20 repeated successive identical features equally spaced apart with a period p, said period varying monotonically from one edge of the sub-grating array to the other. This substrate redirects the light without iridescence in a daylighting application. | 07-15-2010 |
20110043919 | LIGHT GUIDING FILM - A light guiding film has a film body and a micro-structured portion. The film body has a first side, a second side and a reference horizontal level vertical to the second side. The micro-structured portion is set on the second side and has a plurality of V-shaped grooves, and each one of the V-shaped grooves has a first sub-face and a second sub-face. The first sub-face has a first included angle between 16° and 22° with respect to said reference horizontal level, and the second sub-face has a second included angle between 8° and 17° with respect to said reference horizontal level. When an incident light beam injects downwardly on said micro-structured portion in a predetermined incident angle range, a predetermined percentage of said incident light beam emit an emissive light beam projected out in an included angle range between 0° and 90° with respect to said reference horizontal level. | 02-24-2011 |
20120033301 | Stationary Sunlight Redirecting Element And System - A low-cost sunlight redirecting element including multiple substantially identical redirecting structures uniformly arranged and fixedly disposed on a base, where each redirecting structure includes multiple optical surface regions that are cooperatively formed and arranged such that, when the sunlight redirecting element is operably fixedly oriented relative to a stationary target with sunlight directed along an incident direction onto the redirecting structures, at least some of the sunlight is transmitted between the corresponding optical surface regions of each redirecting structure, and redirected from the corresponding optical surface regions toward the target's surface. The optical surface regions are shaped and arranged to redirect the sunlight toward the fixed target surface even when the sunlight's incident angle direction changes during the course of a year. A stationary sunlight redirecting system (e.g., an architectural daylighting arrangement or PV farm) includes the sunlight redirecting element maintained in a fixed relationship to the stationary target surface. | 02-09-2012 |
20120194913 | WINDOW SYSTEM AND LIGHT GUIDING FILM THEREIN - The present invention relates to a window and light guiding film therein. The light guiding film includes a film base and at least one microstructure. The microstructure is disposed on a side of the film base, and comprises a first surface and a second surface. The refraction index of the microstructure is 1.9 to 2.6. A first inclination angle is between the first surface and a reference plane, the reference plane is perpendicular to the film base, and a second inclination angle is between the second surface and the reference plane, wherein the first inclination angle is less than or equal to the second inclination angle. | 08-02-2012 |
20140104689 | HYBRID LIGHT REDIRECTING AND LIGHT DIFFUSING CONSTRUCTIONS - Solar light redirecting glazing units include light redirecting and light diffusing constructions. The solar light redirecting glazing units may include a glazing substrate, a visible light diffusing layer, and a light redirecting layer oriented such that incoming solar light contacts the visible light diffusing layer before contacting the light redirecting layer. The solar light redirecting glazing units may include a glazing substrate, a patterned visible light diffusing layer, and a light redirecting layer. The solar light redirecting glazing units may include two glazing substrates separated by an intervening space with a solar light redirecting layer disposed on one glazing substrate, and a visible light diffusing layer disposed on the other glazing substrate. | 04-17-2014 |
20140126063 | Laminated Optical Disk - A laminated optical disk, applied for lighting system or solar energy system, includes a plurality of annular lenses, a base and a circular light guiding unit. The annular lenses are arranged in order from center to outside to form a disk-structure. Each annular lens has a light-input curved surface and a light-output curved surface respectively matching the different thickness of the base. The light-input curved surface is opposite to the center. The light-output curved surface is opposite to the light-input curved surface, and facing to the center. The light is incident on the light-input curved surface, refracted and tended to concentrate by the light-input curved surface. Besides, the light exiting from the annular lens is to be refracted to the is direction of the center by the light-output curved surface. The base of the laminated optical disk can significantly improve the light leakage problem by different annular lenses. | 05-08-2014 |
20140133030 | Attachment methods for daylighting films - Attachment methods for daylighting sheets and a resulting optical construction enable daylighting microstructures to be secured to a light incident surface, such as a glazing. Applying an adhesive to selected portions of the daylighting microstructures creates a transparent, optical adhesive surface that enables the daylighting microstructures to be oriented outward, facing the incident light, and effectively seals the microstructures against the glazing to prevent ingress of dust and contaminants that would degrade optical efficiency. | 05-15-2014 |
20140247494 | SUNLIGHT REDIRECTING MIRROR ARRAYS - Sunlight redirector ( | 09-04-2014 |
20140334007 | Optical Element Stacks for the Direction of Light - Provided herein are devices and associated methods for the direction of light, e.g. sunlight. The devices may comprise various stacked optical elements, including wedge prisms and angled-facet minors, such as Fresnel prisms and mirrors. These may be rotated to effect various angles of light redirection. In one embodiment, the invention comprises directional reflectors which enable incident light to be reflected to a target of fixed location. In one embodiment, the target of the directional reflector is a solar energy target such as a thermal solar receiver or photovoltaic element. In another embodiment, the invention comprises directional beam guides which can redirect incident light arriving at a range of angles to a target. In one embodiment the target of the directional beam guide is the interior of a building, wherein directional beam guides are mounted in or on a window to effect light transmission to the target within the building. | 11-13-2014 |
20150049387 | DAYLIGHTING SHEET, DAYLIGHTING PANEL, ROLL-UP DAYLIGHTING SCREEN AND METHOD OF MANUFACTURING DAYLIGHTING SHEET - A daylighting sheet is provided which efficiently performs daylighting and in which, when the daylighting sheet is applied to an opening portion, such as a window of a building, it is possible to see an outdoor side from an indoor side. | 02-19-2015 |
20150345725 | TRANSFLECTIVE LIGHT ADJUSTING FILM AND THE METHOD FOR MANUFACTURING THEREOF - The present invention is to provide a transflective light adjusting film, which includes a transparent substrate and a plurality of transparent grating-like stripe structures which are parallel to each other on the substrate. The transparent grating-like stripe structures have a plurality of top surfaces and a plurality of grooved surfaces, wherein a reflective layer is disposed on the grooved surfaces. | 12-03-2015 |
20160097502 | DAYLIGHT REDIRECTING GLAZING LAMINATES - The present disclosure is directed on some embodiments to light redirecting constructions comprising a first glazing substrate, a light redirecting film comprising at least one microstructure surface, a second glazing substrate, and a first interlayer bonding the first glazing substrate to both the light redirecting film and the second glazing substrate; wherein the light redirecting film has an area smaller than the area of the first interlayer. | 04-07-2016 |
20160251895 | DAYLIGHTING SHEET, DAYLIGHTING PANEL AND ROLL-UP DAYLIGHTING SCREEN | 09-01-2016 |
359593000 | Plural members in series | 5 |
20090262427 | LIGHT-CONCENTRATING PANEL - A light-concentrating panel is disclosed. The light-concentrating panel comprises a planar light collecting element and a linear light collecting element. The planar light collecting element receives and collects the planar light, and then emits out as linear light. The linear light collecting element receives the linear light. The linear light from the planar collecting element enters the linear light collecting element by passing a planar-linear imaginary plane, which is located between the planar light collecting element and the linear light collecting element. The linear light from the planar collecting element are collected and turned into the spot light by the linear light collecting element. | 10-22-2009 |
20100309556 | SKYLIGHT COLLIMATOR WITH MULTIPLE STAGES - A non-specular skylight collimator has at least two axially successive collimator segments from top to bottom, with the segments becoming successively less flared from top to bottom. A skylight diffuser assembly typically covers the open end of the bottom segment. | 12-09-2010 |
20110149401 | SKYLIGHT COLLIMATOR WITH MULTIPLE STAGES - A non-specular skylight collimator has at least two axially successive collimator segments from top to bottom, with the segments becoming successively less flared from top to bottom. A skylight diffuser assembly typically covers the open end of the bottom segment. | 06-23-2011 |
20140055859 | OPTICAL ARTICLE FOR ILLUMINATING BUILDING INTERIORS WITH SUNLIGHT - A sheet-form light-redirecting optical article for illuminating building interiors with sunlight. At least one embodiment comprises a sheet of optically transmissive rigid material, preferably Poly(methyl methacrylate), in which a plurality of deep and narrow parallel channels are formed and arranged in two perpendicular arrays. Each channel has opposing walls configured for reflecting light by means of a Total Internal Reflection (TIR). At least a portion of off-axis rays incident onto the surface of the sheet is redirected by the TIR walls of the light-guiding channels. At least one embodiment comprises a grid formed by intersecting specular reflectors and further comprises a light diffusing element optically coupled to the grid. Disclosed also are a method for making the intersecting arrays of light-redirecting channels. | 02-27-2014 |
20160178150 | SUNLIGHT REDIRECTOR WITH FIXED MIRROR SEGMENTS | 06-23-2016 |
359594000 | Elements on two sides of member | 2 |
20150085368 | OPTICAL ARTICLE FOR DIRECTING AND DISTRIBUTING LIGHT - An optical article for directing and distributing light including an optically transmissive light diffusing sheet and a reflective grid disposed in energy exchange relationship with the diffusing sheet. The reflective grid includes one or more parallel arrays of reflective surfaces configured to partially transmit and partially redirect a parallel beam of light into one or more directions that are not coincident with the original propagation direction of the incident light beam. | 03-26-2015 |
20160169465 | Mirror For Solar-Skypipe Collector | 06-16-2016 |
359595000 | With internal reflections | 6 |
20130265642 | DAYLIGHTING FABRIC AND METHOD OF MAKING THE SAME - A flexible sheet-form optical system, referenced to as a daylighting fabric, which has a fabric-like behavior and light redirecting properties. The daylighting fabric comprises a soft and flexible sheet of optically transmissive material, such as plasticized polyvinyl chloride. A surface of the flexible sheet includes a plurality of parallel slits having spaced-apart walls configured to reflect light by means of a total internal reflection. At least a portion of daylight incident onto the sheet is internally redirected at angles other than the angle of incidence which is exploited to enhance daylight harvesting and illumination of a building interior. Disclosed also are a method and apparatus for making the daylighting fabric. The method includes steps of mechanical slitting of the flexible sheet with a blade, elastic stretch-elongation of the sheet along a direction perpendicular to the slits, and making at least a portion of the sheet elongation irreversible. | 10-10-2013 |
20140320965 | LIGHT REDIRECTING FABRIC AND METHOD OF MAKING THE SAME - A flexible sheet-form optical system, referenced to as a light redirecting fabric, which has a fabric-like behavior and light redirecting properties. The light redirecting fabric comprises a soft and flexible sheet of optically transmissive material, such as plasticized polyvinyl chloride. A surface of the flexible sheet includes a plurality of parallel slits having spaced-apart walls configured to reflect light by means of a total internal reflection. At least a portion of daylight incident onto the sheet is internally redirected at angles other than the angle of incidence which is exploited to enhance daylight harvesting and illumination of a building interior. Disclosed also are a method and apparatus for making the light redirecting fabric. The method includes steps of mechanical slitting of the flexible sheet with a blade, elastic stretch-elongation of the sheet along a direction perpendicular to the slits, and making at least a portion of the sheet elongation irreversible. | 10-30-2014 |
20140320966 | DEVICE FOR CAPTURING, TRANSMITTING AND DIFFUSING NATURAL LIGHT INTO INTERIOR SPACES, WHICH COMPRISES A CONDUIT OF INVERTED FRUSTOPYRAMIDAL FORM AND A DIFFUSER THAT EMERGES TRANSVERSELY WITH RESPECT TO THE HORIZONTAL PLANE OF THE CEILING OF A ROOM - A device of the skylight type for capturing, transmitting and diffusing natural light into the interior of a room, that comprises a duct configured as an inverted truncated pyramid made of a reflecting material having on its upper end a translucent plane adaptable to the conditions of the existing cover that receives the natural light. Given said duct material and configuration, the light is conducted by the inner walls of said duct to the lower end thereof, where it is joined to a light diffuser plate of a material having total internal reflection, said diffuser plate emerging transversely to the horizontal plane of the ceiling in the room that is going to be lighted. A connecting element provides a finish to the joint between said transmitting duct and said diffuser block. The device provides aesthetic and spatial characteristics that contribute light and ornamentation to the building, while being simple and easy to install. | 10-30-2014 |
20160010820 | OPTICAL ARTICLE FOR DIRECTING AND DISTRIBUTING LIGHT | 01-14-2016 |
20160025288 | LIGHT DIRECTING SHEETING AND SYSTEMS EMPLOYING THE SAME - An optically transmissive light directing sheeting and a method of making the same are disclosed. The light directing sheeting includes a core sheet of an elastic material that can be laminated onto other surfaces or sandwiched between sheets of various rigid materials. The core sheet includes a plurality of deep and narrow parallel channels configured to direct light by means of a total internal reflection. The method includes a step of slitting of a soft, optically transmissive plastic sheet with a blade and forming at least one array of substantially parallel linear slits in a surface of the sheet, a step of stretching the sheet in a direction perpendicular to the linear slits, and a step of bonding the sheet to a different sheet of an optically transmissive, rigid material. Various light directing devices employing the light directing sheeting are also disclosed. | 01-28-2016 |
20160186948 | Louvered Light Re-Directing Structure - Generally plano rectangular louvers are capable of being ganged in a stacked tiltable array to enhance light re-direction when titled to follow the solar elevation. Combinations of features and optical characteristic avoid optical artifacts and enhance efficiency of light utilization and manufacturing. Different louvers can be combined in alternative ways in such arrays. | 06-30-2016 |
359596000 | Slats or strips | 8 |
20090052042 | LIGHT TUNNEL STRUCTURE AND MANUFACTURING METHOD THEREOF - A light tunnel structure includes a plurality of reflecting plates and an impervious layer. The reflecting plates are connected to each other to form a light tunnel. An end surface of each reflecting plate and an end surface of the adjacent reflecting plate of the two adjacent reflecting plates form an joint. The impervious layer is disposed at the joints formed by the adjacent reflecting plates. A method for manufacturing a light tunnel structure is disclosed. | 02-26-2009 |
20100149643 | LIGHT SHELVES FOR DAYLIGHTING - The embodiments disclosed herein relate to light shelves for daylighting, and more particularly to light shelves that include both a diffuser and a reflector. According to aspects illustrated herein, there is provided a light shelf that includes at least one anchor bracket suitable for attachment to a building structure; at least one support beam attached to the anchor bracket; and a plurality of light transmitting airfoil-shaped louvers each supported and positioned by the support beam at a preselected fixed profile angle, wherein each of the louvers includes a diffuser and a reflective surface. | 06-17-2010 |
20120120496 | A PASSIVE LOUVER-BASED DAYLIGHTING SYSTEM - A daylighting system for use in a building including a louver array having a first longitudinal element, and a second longitudinal element spaced therefrom. At least one of the first and second elements has an asymmetrical profile, each of the first and second longitudinal elements has a bottom profile including a parabolic surface, portions of opposing surfaces of the first and second longitudinal elements define a compound parabolic concentrator profile having a non-horizontal centerline that is tilted upwards, and the array prevents line of sight therethrough. A louver for a daylighting system includes (i) a leading edge defined by a leading connecting surface disposed between a parabolic concentrator surface and a flat surface; and (ii) a trailing edge defined by a trailing connecting surface disposed between a lower compound parabolic concentrator profile, and an upper compound parabolic concentrator profile. A method for designing a louver profile is provided. | 05-17-2012 |
20130120844 | CONCENTRATING DAYLIGHT COLLECTOR - The disclosure generally relates to concentrating daylight collectors, and in particular to concentrating daylight collectors useful for interior lighting of a building. The concentrating daylight collectors generally include a plurality of moveable reflective vanes and a Cassegrain-type concentrator section. | 05-16-2013 |
20130250422 | Window Blind Solar Energy Management System - Disclosed is a window blind solar energy management system for capturing solar energy to manage illumination and temperature within a defined space. Blinds comprising curved louvers are hung from the internal frame of a window, each louver having a concave, highly reflecting specular mirrored surface that focuses incoming solar beam radiation onto a thin area on the back of the adjacent louver. The angle of the louvers is adjusted by an integral automatic controller so that the thin strip of light can be focused on one or two of three regions on the back of the adjacent louver which are designed to either reflect, absorb, or reject the incoming light. | 09-26-2013 |
20130321923 | PASSIVE LOUVER-BASED DAYLIGHTING SYSTEM - A daylighting system for use in a building including a louver array having a first longitudinal element, and a second longitudinal element spaced therefrom. At least one of the first and second elements has an asymmetrical profile, each of the first and second longitudinal elements has a bottom profile including a parabolic surface, portions of opposing surfaces of the first and second longitudinal elements define a compound parabolic concentrator profile having a non-horizontal centerline that is tilted upwards, and the array prevents line of sight therethrough. A louver for a daylighting system includes (i) a leading edge defined by a leading connecting surface disposal between a parabolic concentrator surface and a flat surface; and (ii) a trailing edge defined by a trailing connecting surface disposed between a lower compound parabolic concentrator profile, and an upper compound parabolic concentrator profile. A method for designing a louver profile is provided. | 12-05-2013 |
20160076718 | High Efficiency Daylighting Structure - A high efficiency daylight directing structure for application on fenestration deploys closely spaced macroscopic bars of transparent resin to eliminate different forms of glare. The spaced apart surfaces provide for efficient reflection of selective incident light, by TIR or metallic surfaces, via the ultra-smooth native surfaces from a mold or casting process. A close spacing is readily obtained in various attachment methods to boost efficiency. The fabrication method allows selective deposition of absorbing layers, such as by of painting/printing between alternating native optical surface to provide one way transparency at high angles of incidence. The bars are supported on at least one common planar surface by transparent support member with an optical quality adhesive material filling any imperfection in the bars common planar surface that form in fabrication. | 03-17-2016 |
20160178164 | LIGHT CONTROL DEVICE | 06-23-2016 |
359597000 | With reflection | 25 |
20090251784 | Luminaire reflector with light-modifying flange - A luminaire reflector of the type that is dome-shaped and includes a flange at the bottom provides a modified a flange that alters the pattern or other effect of light trapped in the wall of the reflector and exiting through the flange. When the bottom surface of the flange is angled with respect to the horizontal, the light exiting the flange is spread and lifted. In accordance with another embodiment, the flange is provided with a colored layer to provide decorative effects to the light exiting the flange. | 10-08-2009 |
20100157427 | SYSTEM AND METHOD FOR SHADE SELECTION USING A FABRIC BRIGHTNESS FACTOR - Brightness factors associated with shade fabric may be utilized when shading a building. A brightness factor may incorporate an openness factor, a visible light reflectance, a diffusion factor, a color, or other characteristics of the shade fabric. The brightness factor may be utilized when selecting a particular shade fabric for a room, building or other location. Additionally, the brightness factor may be utilized by an automated shade control system. The shade fabric selection may affect the building envelope by facilitating the optimization of daylighting, reduction of artificial electric lighting needs, minimization of glare conditions, and reduction of thermal load. | 06-24-2010 |
20100254010 | ADAPTIVE SUNLIGHT REDIRECTOR - Longitudinally adjacent plane mirrors ( | 10-07-2010 |
20100254011 | REFLECTIVE LIGHT SHELF, SYSTEM AND METHOD - A reflective light shelf includes a first wall including an outer surface exhibiting a combination of diffuse and spectral reflectivity adapted to reflect light into the associated building structure and an inner surface disposed opposite the outer surface. A second wall includes an inner surface disposed in facing relation to the inner surface of the first wall and an outer surface opposite the inner surface. The second wall is disposed in spaced relation to the first wall such that a shelf height is defined between the outer surfaces of the first and second walls. An inner-core structure is operatively connected between the inner surfaces of the first and second walls. A reflective light shelf system and method are also included. | 10-07-2010 |
20100271704 | DEVICE AND METHOD FOR BEAM FORMING A HOMOGENIZED LIGHT BEAM - Described is a device as well as a method for beam forming a homogenized light beam, particularly a laser beam, with a unit that homogenizes the light beam at least along a cross-sectional axis of the light beam, a mask following downstream in the beam path of the light beam, said mask having mask regions that block the light beam and those that are transparent, and also an optical imaging unit disposed downstream in the beam path. | 10-28-2010 |
20120033302 | OPTICAL ELEMENT, METHOD OF MANUFACTURING OPTICAL ELEMENT, ILLUMINATION DEVICE, WINDOW MEMBER, AND FITTING - An optical element includes a first surface, a second surface positioned to face the first surface, and a plurality of reflecting surfaces arrayed in a first region defined by the first surface and the second surface, wherein the reflecting surfaces have a first length in a first direction vertical to the first surface and are arrayed at a pitch in a second direction perpendicular to the first direction, light incident on one of the first surface and the second surface is reflected by the reflecting surfaces toward the other surface, and predetermined parameters satisfy predetermined relational formulae representing conditions for ensuring total reflection at the reflecting surfaces and for avoiding total reflection at a light emergent surface. | 02-09-2012 |
20120113519 | METHOD AND APPARATUS FOR PREVENTING BIRDS FROM COLLIDING WITH OR STRIKING FLAT CLEAR AND TINTED GLASS AND PLASTIC SURFACES - Clear or tinted window panes of glass or plastic having a pattern of dots, vertical lines, horizontal lines or a combination of vertical and horizontal lines in a regular pattern on a surface of the pane, the pattern being visible to the avian eye to prevent birds from striking or colliding with the window pane and having optical characteristics of a minimum of | 05-10-2012 |
20120206814 | LIGHT DUCT BEND - Generally, the present disclosure provides a light duct bend used in a mirror-lined light duct system. In one aspect, the light duct bend includes an input region having a first propagation direction, an output region having a second propagation direction disposed at a bend angle to the first propagation direction, and a transition region connecting the input region to the output region. The transition region includes a plurality of vanes that subdivide the duct into channels, which can reduce the loss and/or disruption of collimation about one or more bends in the light duct system. | 08-16-2012 |
20130135744 | DAYLIGHT COLLECTION SYSTEMS AND METHODS - Lighting devices and methods for illuminating the interior of a building with natural daylight are disclosed. In some embodiments, a daylighting apparatus includes a tube having a sidewall with a reflective interior surface, an at least partially transparent light collector with one or more light turning elements, and a light reflector positioned to reflect daylight into the light collector. The one or more light turning elements can turn direct and indirect daylight into the tube so that it is available to illuminate the building. In some embodiments, the tube is disposed between the light collector and a diffuser positioned inside a target area of a building. In certain embodiments, the tube is configured to direct at least a portion of the daylight transmitted through the light collector towards the diffuser. | 05-30-2013 |
20130201561 | Optical Distributor for Room Lighting - An optical distributor ( | 08-08-2013 |
20130279009 | LIGHT GUIDE PLATE - A light guide plate includes a substrate and horizontally oriented elongated prisms. The substrate is positioned on mounted on an outside surface of a window of a building and includes a first surface and an opposing second surface. The second surface faces the outside surface. The substrate is made of transparent material. The prisms are arranged on the first surface and parallel to each other. Each prism includes a flat side surface facing upward and a curved side surface facing downward. The flat side surface and the curved side surface extend from the first surface and intersect at a line away from the first surface. Each curved side surface is configured for reflecting light passing through the flat side surface to a ceiling of the building. | 10-24-2013 |
20140160570 | HIGH ASPECT RATIO DAYLIGHT COLLECTORS - Lighting devices and methods for providing daylight to the interior of a structure are disclosed. Some embodiments disclosed herein provide a daylighting device including a tube having a sidewall with a reflective interior surface, a light collecting structure, and a light reflector positioned to reflect daylight into the light collector. In some embodiments, the light collector is associated with one or more light-turning and/or light reflecting structures configured to increase the amount of light captured by the daylighting device. Optical elements may allow for the absorption and/or selective transmission of infrared light away from an interior of the daylighting device. | 06-12-2014 |
20140268347 | DAYLIGHTING TUBE SEGMENT CONNECTION SYSTEMS AND METHODS - Certain disclosed embodiments provide internally-reflective tube assemblies for use in a tubular daylighting device configured to direct daylight into an interior of a building when installed on a roof of the building. A tube assembly may include multiple tube segments including connection projections, such as hook-type structures, for weaving or otherwise connecting and/or securing tube segments together. In some embodiments, sidewalls of tube segments connected together are substantially parallel to one another at or near the connection region. | 09-18-2014 |
20150009567 | OFF-AXIS CASSEGRAIN SOLAR COLLECTOR - The disclosure generally relates to concentrating daylight collectors and in particular to concentrating daylight collectors useful for interior lighting of a building. The concentrating daylight collectors generally include a cassegrain-type concentrator section that provides for a full-tracking solar collector with one moving part and with a high efficiency of coupling of collected solar irradiation to a stationary duct. In some cases, the disclosed concentrating daylight collectors can be used more conventionally, such as for directing sunlight onto a photo-voltaic cell for generation of electrical power, or an absorbing surface for extraction of thermal energy. | 01-08-2015 |
20150022895 | LIGHT REDIRECTION DEVICE - The present invention relates to a light redirection device ( | 01-22-2015 |
20150070769 | Solar Concentrator with Integrated Tracking and Light Delivery System with Summation - A solar light distribution system includes a solar light concentrator that is affixed externally to a light transfer tube. Solar light waves are processed by the concentrator into a collimated beam of light, which is then transferred through a light receiving port and into the light transfer tube. A reflector redirects the collimated beam of light through the tube to a light distribution port. The interior surface of the light transfer tube is highly reflective so that the light transfers through the tube with minimal losses. An interchangeable luminaire is attached to the light distribution port and provides light inside of a structure. A sun tracking device rotates the concentrator and the light transfer tube to optimize the receiving of solar light by the concentrator throughout the day. The system provides interior lighting that uses only renewable energy sources, and releases no carbon dioxide emissions into the atmosphere. | 03-12-2015 |
20160084458 | ILLUMINATED LIGHT DUCT JOINT - The present disclosure provides a novel construction for an illuminated light splitter in a mirror-lined light duct. In particular, the present disclosure addresses the ability to split partially collimated light travelling through a light duct into two different light ducts using light diverters, while extracting a portion of the light from each of the light ducts and also from the common intersection region. In some cases, the visual appearance of the illumination in the intersection region can appear non-uniform due to the presence of the light diverters, and the present disclosure provides an illuminated light duct splitter ( | 03-24-2016 |
20160138771 | DAYLIGHT COLLECTION SYSTEMS AND METHODS - Lighting devices and methods for illuminating the interior of a building with natural daylight are disclosed. In some embodiments, a daylighting apparatus includes a tube having a sidewall with a reflective interior surface, an at least partially transparent light collector with one or more light turning elements, and a light reflector positioned to reflect daylight into the light collector. The one or more light turning elements can turn direct and indirect daylight into the tube so that it is available to illuminate the building. In some embodiments, the tube is disposed between the light collector and a diffuser positioned inside a target area of a building. In certain embodiments, the tube is configured to direct at least a portion of the daylight transmitted through the light collector towards the diffuser. | 05-19-2016 |
20160186949 | DAYLIGHTING SYSTEM - A daylighting system includes a sheet-like light control member disposed on at least an upper part of a daylighting opening, and a shade disposed oppositely to at least a part of the opening, the part being below the part where the light control member is disposed. The light control member is configured to change upward a traveling direction of incident light and allow the incident light to pass through the light control member. | 06-30-2016 |
359598000 | Internal reflection in single optical element | 6 |
20110141570 | DIRECT AND INDIRECT LIGHT DIFFUSING DEVICES AND METHODS - Some embodiments provide a daylighting apparatus comprising an internally reflective tube configured to direct daylight from a first end of the tube to a second end of the tube opposite the first end. A diffuser can be positioned at the second end of the tube. The diffuser can comprise a first optical structure configured such that, when the daylighting apparatus is installed with the first end positioned outside a room and the second end positioned to provide light to the room, a reflected portion of the daylight is directed towards at least one upper region (e.g., a ceiling or upper wall surface) of the room and a transmitted portion of the daylight is directed towards at least one lower region (e.g., a floor surface) of the room. | 06-16-2011 |
20120092772 | LIGHT COLLECTION SYSTEM AND METHOD - The present invention is directed to light collection systems, the system comprising at least one light receiving element, selected from the group consisting of: a window, a photovoltaic element, a heating element, a light guiding element and combinations thereof, and at least one light reflector-deflector element, each element comprising a front light receiving surface, a rear surface, and a transparent volume, disposed between the front light receiving surface and the rear surface, the transparent layer being of a higher refractive index than of its surrounding, wherein the transparent volume comprises an asymmetric pattern which is configured to at least partially reflect light by internal reflection and direct the light within the element, reflect some light off said front light receiving surface, reflect, deflect and guide light within the light reflector-deflector element; and direct light through the front light receiving surface towards the at least one light receiving element. | 04-19-2012 |
20130342911 | LIGHTING DEVICE - A lighting device includes a substantially cylindrical tube defining an interior and an exterior, and a longitudinal axis extending between a first end and a second end. The first end of the tube defines a substantially cylindrical opening disposed in a plane at a first angle that is substantially perpendicular to the longitudinal axis, and the second end of the tube defines a substantially elliptical opening disposed in a plane at a second angle that is substantially non-perpendicular to the longitudinal axis. A reflective surface is provided on the interior of the tube, and a substantially cylindrical flashing is provided about the exterior of the tube. A substantially transparent dome is coupled to the tube proximate the first end, and a diffuser is coupled to the tube proximate the second end. | 12-26-2013 |
20150009568 | LIGHT COLLECTION SYSTEM AND METHOD - A light collection systems with at least one light receiving element, such as a window, a photovoltaic element, a heating element, a light guiding element or combinations thereof, and at least one light reflector-deflector element. The light reflecting elements include a front light receiving surface, a rear surface, and a transparent volume, disposed between the front light receiving surface and the rear surface, the transparent layer being of a higher refractive index than of its surrounding. The transparent volume comprises an asymmetric pattern which is configured to at least partially reflect light by internal reflection and direct the light within the element, reflect some light off said front light receiving surface, reflect, deflect and guide light within the light reflector-deflector element; and direct light through the front light receiving surface towards the at least one light receiving element. | 01-08-2015 |
20150062711 | DAYLIGHT COLLECTION SYSTEMS AND METHODS - Lighting devices and methods for illuminating the interior of a building with natural daylight are disclosed. In some embodiments, a daylighting apparatus includes a tube having a sidewall with a reflective interior surface, an at least partially transparent light collector with one or more light turning elements, and a light reflector positioned to reflect daylight into the light collector. The one or more light turning elements can turn direct and indirect daylight into the tube so that it is available to illuminate the building. In some embodiments, the tube is disposed between the light collector and a diffuser positioned inside a target area of a building. In certain embodiments, the tube is configured to direct at least a portion of the daylight transmitted through the light collector towards the diffuser. | 03-05-2015 |
20160252225 | LIGHTING MEMBER, LIGHTING DEVICE, AND METHOD FOR INSTALLING LIGHTING MEMBER | 09-01-2016 |