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| Number | Title | Issue Date |
| 8111461 | 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... | 02/07/2012 |
| 8040610 | 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 gr... | 10/18/2011 |
| 8000014 | Adaptive sunlight redirector Longitudinally adjacent plane mirrors (106-114) are pivotally interconnected in a columnar array (56) by non-stretching linkages (120) which constrain movement of the mirrors such that their normal vectors (115) remain parallel. Pi... | 08/16/2011 |
| 7957065 | 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. | 06/07/2011 |
| 7339739 | Active daylighting and active solar heating system and method A daylighting system for structures consisting of a solar energy collector means including a modified Cassegrainian optical system, a means of moving said collector means to an attitude tracking the sun's position in the sky during daylight hours, a heat separation ... | 03/04/2008 |
| 7322156 | Skylight domes with reflectors A skylight cover includes a transparent lens and an opaque reflector attached to the inside of the cover opposite the lens. Light entering the lens can be refracted by the lens so that it reflects off of the reflector and into a tubular skylight assembly. Thus, the ... | 01/29/2008 |
| 7295372 | Day lighting device The present invention relates to an apparatus for collecting and transmitting sunlight into a space comprising a solar ray collecting device, a solar light transmitting device and a solar light emitting device, wherein said solar ray collecting device is arranged to... | 11/13/2007 |
| 7227077 | Light element with a translucent surface A light element with a translucent surface includes an energy converter, wherein the translucent surface is so formed as to direct only that portion of the radiation onto the energy converter that impinges on the translucent surface. The energy converter may be a so... | 06/05/2007 |
| 7177490 | Optical waveguide, optical device, and method of manufacturing optical waveguide An optical waveguide is formed on a substrate and includes a curved ridge structure, a curved optical path, and a buffer layer. The curved ridge structure is formed on the substrate so as to have a curvature in a longitudinal direction of the curved ridge structure.... | 02/13/2007 |
| 7147903 | High efficiency optical devices Optical devices such as backlight assemblies, according to the present invention include a multilayer optical film in which at least one of the layers comprises an oriented birefringent polymer. The multilayer optical film exhibits low absorptivity and can reflect l... | 12/12/2006 |
| 7054512 | Optical waveguide, optical device, and method of manufacturing optical waveguide An optical waveguide is formed on a substrate and includes a curved ridge structure, a curved optical path, and a buffer layer. The curved ridge structure is formed on the substrate so as to have a curvature in a longitudinal direction of the curved ridge structure.... | 05/30/2006 |
| 6980728 | Optical element having total reflection An optical element (1) for reflecting and/or redirecting light rays (L1) entering therein and again emerging therefrom consists of a transparent base body (2) which is so structured and/or formed that, with the formation of reflection surfaces (... | 12/27/2005 |
| 6948814 | Optical lens or glass having a label and/or marking on the front surface and/or rear surface The invention relates to an optical lens or glass with an identification and/or marking on the front and/or rear surface. The inventive lens or glass with an identification and/or marking on the front and/or back surface is characterized by an identification and/or ... | 09/27/2005 |
| 6934080 | High efficiency viewing screen A low-scatter polarization-preserving multilayer viewing screen. A substrate D, preferably a volume diffuser, for increasing the divergence of information-coded-light while preserving its polarization sense A as it passes therethrough has a discrimination of at leas... | 08/23/2005 |
| 6924014 | High efficiency optical devices Optical devices according to the present invention include a multilayer optical film in which at least one of the layers comprises an oriented birefringent polymer. The multilayer optical film exhibits low absorptivity and can reflect light approaching at shallow an... | 08/02/2005 |
| 6873465 | Installation for increasing the light yield on the playing surface in a stadium An installation for increasing the daylight yield in a stadium provided with a playing surface, stands, and optionally a covering, includes an essentially vertical light-reflecting body to guide the light incident on the body towards the playing surface in the stadi... | 03/29/2005 |
| 6700716 | Optical element with a microprism structure for deflecting light beams An optical element (10, 10', 10") for deflecting light beams (18, 19), which enter and re-emerge from the latter, in such a way that their angle of emergence (γ) is limited, in particular for use as a luminaire-cover, having a plate-like core (11, 11', 1... | 03/02/2004 |
| 6688681 | Sun blind assembly A sun blind assembly including an incident surface and a lens element, the incident surface having a reflective region which reflects incident light and a non-reflective region which transmits incident light, the lens element and incident surface being ar... | 02/10/2004 |
| 6641883 | High efficiency optical devices Optical devices such as light pipes which incorporate multilayer optical films in which the refractive indices of two adjacent layers in the thickness direction are substantially matched or are small relative to the difference in refractive indices of sai... | 11/04/2003 |
| 6583932 | Optical system for diffusing light An improved optical system is provided for diffusing light uniformly over a wide angle, including, a diffractive element for diffracting light received by the system in multiple diffraction orders, and a diffusing element which diffuses the diffracted lig... | 06/24/2003 |
| 6466374 | Iridescent film with multidirectional variable optical stripes Iridescent film with multidirectional variable optical stripes, including multiple very thin laminated films. The films are respectively made of different transparent plastic materials with different refractive indices. At least one surface of the laminat... | 10/15/2002 |
| 6311437 | Pane for solar protection, daylighting and energy conservation The pane for solar protection, daylighting and energy conservation is a pane system consisting of two prismatic panes. The prismatic ribs of the panes are inclined by a certain angle to the horizontal within the window plane, exhibit identical cross-secti... | 11/06/2001 |
| 6210785 | High efficiency optical devices Optical devices such as light pipes which incorporate multilayer optical films in which the refractive indices of two adjacent layers in the thickness direction are substantially matched or are small relative to the difference in refractive indices of sai... | 04/03/2001 |
| 6159878 | Layered reflecting and photoluminous fire resistant material Flexible, fire resistant, layered reflecting and photoluminous material is provided which combines the advantages of a light reflective component and a luminescent component in a fire resistant structure which meets National Fire Protection Association st... | 12/12/2000 |
| 6078426 | Light diffuser with macroscopic chaotically and quasichaotically formed light reflecting and light refracting planes A light diffuser includes a light scattering element particularly useful for ornamental and decorative purposes. The light scattering element has macroscopic chaotically or quasi-chaotically formed refracting planes and/or reflection planes. The light sca... | 06/20/2000 |
| 5982562 | Lenses formed by arrays of reflectors A lens, suitable for directing radiation, comprises an array of planar reflecting elements or slats. Each reflecting element is of non-uniform extent or surface area t and/or is of non-uniformly spacing d from adjacent elements. The elements may be parall... | 11/09/1999 |
| 5880886 | Optical component suitable for use in glazing An optical component comprises at least one substantially planar element having a plurality of elementary surfaces capable of acting to reflect by total internal reflection light incident thereon through the corresponding said element within a first range... | 03/09/1999 |
| 5828494 | Glass panel unit for refracting and dispersing light A panel unit for use in a window, a partition, a free standing frame, or in a wall, and having a plurality of vertically stacked, elongated transparent elements arranged in a frame, whereby natural light or artificial light on one side of the panel reflec... | 10/27/1998 |
| 5729387 | Solar lighting apparatus and controller for controlling the solar lighting apparatus A solar lighting apparatus according to the present inveniton is configured so that one lighting prism plate is rotatably arranged in a lighting portion or a plurality of lighting prism plates are rotatably arranged in the lighting portion at intervals of... | 03/17/1998 |
| 5703720 | Light collection and distribution apparatus A light collection and distribution apparatus for use with an exterior window well comprising a window well liner having at least one primary surface which is reflective and faces the window to reflect light rays in the direction of the window, a reflecti... | 12/30/1997 |
| 5675487 | System for controlling energy through window Energy control system for a window comprises fenestration blinds, horizontal or vertical, disposed at the window and adjustable in angle to control solar radiation entering the window. First and second photovoltaic sensors are disposed proximate respectiv... | 10/07/1997 |
| 5666771 | Electrochromic glazing pane This invention concerns an electrochromic pane comprising a principal functional film constituted of a material which, under the effect of an electric current, is capable of reversibly inserting cations and which has characteristics of coloration and/or t... | 09/16/1997 |
| 5650875 | Light transmitting panels, and methods for adjusting the natural lighting quantity and range using any of the light transmitting panels The present invention relates to light transmitting panels mainly applied to lighting windows in openings of general buildings and lighting quantity or range adjusting methods for interiors of general buildings using any of the light transmitting panel's.... | 07/22/1997 |
| 5517358 | Tracking reflector assembly having means for accurately synchronizing the movement thereof and for providing quick access to system switches for inspection and repair An improved system for synchronizing the positioning of a reflector assembly used in solar lighting apparatus for illuminating the interior of a roofed building. The reflector assembly is rotatable about a vertical access for tracking daily movements of t... | 05/14/1996 |
| 5467564 | Daylight collection and distribution system An apparatus designed to capture and direct daylight to a target area in a building or other structure. A housing provides an aperture and passive directing structure which directs daylight entering the apertures towards the target area. The passive direc... | 11/21/1995 |
| 5461496 | Light transmitting panels, and methods for adjusting the natural lighting quantity and range using any of the light transmitting panels The present invention relates to light transmitting panels mainly applied to lighting windows in openings of general buildings and lighting quantity or range adjusting methods for interiors of general buildings using any of the light transmitting panels. ... | 10/24/1995 |
| 5408795 | Daylight collection and distribution system An apparatus designed to capture and direct daylight to a target area in a building or other structure. A housing provides a plurality of apertures and passive directing means which directs daylight entering the apertures towards the target area. The pass... | 04/25/1995 |
| 5291331 | Light confining cavity with angular-spatial limitation of the escaping beam A light confining cavity collects much of the radiation reflected by a receiver, absorbing it imperfectly, and casts it again on the same receiver or on other receivers by means of an optical system. Only light in a bundle of rays of limited angular sprea... | 03/01/1994 |
| 5285315 | Apparatus and method for optimizing useful sunlight reflected into a room A comprehensive method, and apparatus implementing the method, for providing beam daylighting to a room by one or more reflectors positioned in a window wall of the room. The method involves a mathematical analysis of solar and reflected beam vectors and ... | 02/08/1994 |
| 5123722 | Decorative glass A sheet of decorative glass for forming an artistic light pattern on a surface proximate to the glass. One surface of the glass sheet comprises a plurality of facets, each of which is associated with several other facets so as to form a projecting section... | 06/23/1992 |
