Abstract: 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.

Abstract: 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.

Abstract: The present disclosure generally relates to multilayer display connections, display devices using the display connections, and tiled displays, in particular tiled reflective cholesteric liquid crystal displays. The displays include substrates that have integral tabs for bringing the electrical connections from one major surface of the display to the opposite major surface of the display. The inactive region of a tiled display is thereby minimized by making the electrical connections to display drivers on the major surface opposite the viewing area.

Abstract: 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.

Abstract: A system for generating a laser machined tool from a substantially cylindrical work piece. The system includes a laser producing a laser beam, a mask positioned within the laser beam for shaping the laser beam into an image, and an optical system for imaging the laser beam image onto the outer surface of the work piece. The system coordinates rotational and translation movements of the work piece with activation of the laser in order to use the laser image for ablating the outer surface of the work piece, creating microstructures within the surface of the work piece to form the cylindrical tool.

Abstract: The present disclosure relates to illumination or lighting assemblies and systems that provide illumination using LEDs. In one aspect, the present disclosure provides a lighting assembly, comprising: multiple light emitting diodes that emit light; an optical system that directs the light emitted by the light emitting diodes, the optical system positioned adjacent to light emitting diodes; and a cooling fin including a two-phase cooling system, the cooling fin positioned adjacent to the light emitting diodes such that the two-phase cooling system removes heat from the light emitting diodes. In another aspect, the present disclosure provides a lighting system including multiple lighting assemblies.

Abstract: The present disclosure generally relates to multilayer display connections, display devices using the display connections, and tiled displays, in particular tiled reflective cholesteric liquid crystal displays. The displays include substrates that have integral tabs for bringing the electrical connections from one major surface of the display to the opposite major surface of the display. The inactive region of a tiled display is thereby minimized by making the electrical connections to display drivers on the major surface opposite the viewing area.

Abstract: A system for generating a laser machined tool from a substantially cylindrical work piece. The system includes a laser producing a laser beam, a mask positioned within the laser beam for shaping the laser beam into an image, and an optical system for imaging the laser beam image onto the outer surface of the work piece. The system coordinates rotational and translation movements of the work piece with activation of the laser in order to use the laser image for ablating the outer surface of the work piece, creating microstructures within the surface of the work piece to form the cylindrical tool.

Abstract: A system for generating a laser machined tool from a substantially cylindrical work piece. The system includes a laser producing a laser beam, a mask positioned within the laser beam for shaping the laser beam into an image, and an optical system for imaging the laser beam image onto the outer surface of the work piece. The system coordinates rotational and translation movements of the work piece with activation of the laser in order to use the laser image for ablating the outer surface of the work piece, creating microstructures within the surface of the work piece to form the cylindrical tool.

Abstract: The present disclosure relates to illumination or lighting assemblies and systems that provide illumination using LEDs. In one aspect, the present disclosure provides a lighting assembly, comprising: multiple light emitting diodes that emit light; an optical system that directs the light emitted by the light emitting diodes, the optical system positioned adjacent to light emitting diodes; and a cooling fin including a two-phase cooling system, the cooling fin positioned adjacent to the light emitting diodes such that the two-phase cooling system removes heat from the light emitting diodes. In another aspect, the present disclosure provides a lighting system including multiple lighting assemblies.

Abstract: A sparse patterned mask for use in a laser ablation process to image a substrate. The mask has a plurality of apertures for transmission of light and non-transmissive areas around the apertures. The apertures individually form a portion of a complete pattern, and a plurality of apertures from one or more masks together form the complete pattern when the masks are imaged. Making a mask sparse provides for a path to remove debris from the substrate during the laser ablation process. Multiple interlaced sparse repeating patterns can create a more complex pattern with repeat distances larger than the individual patterns.

Abstract: A method of making an optical film includes the steps of making a substrate having a first major surface and a second major surface opposite the first surface and forming a plurality of curved sided cone structures on the first surface. Each of the curved sided cone structures include a base located on the first surface, a vertex, and a curved side formed from an arc extending between the base and the vertex. The optical gain and viewing angle for the film can be controlled by adjusting angles representing a shape of each curved sided cone structure at its vertex and base.

Abstract: A system for generating a laser machined tool from a substantially cylindrical work piece. The system includes a laser producing a laser beam, a mask positioned within the laser beam for shaping the laser beam into an image, and an optical system for imaging the laser beam image onto the outer surface of the work piece. The system coordinates rotational and translation movements of the work piece with activation of the laser in order to use the laser image for ablating the outer surface of the work piece, creating microstructures within the surface of the work piece to form the cylindrical tool.

Abstract: This disclosure relates to methods and apparatus for forming a plurality of microstructured sets of cells on a substrate, wherein each set of cells may be formed from a discrete flexible mold. Each mold is independently adjustable in position relative to the substrate. Side-by-side independently adjustable molds are pressed against the substrate by a single lamination roller.

Abstract: A continuous motion robotic device including a first robotic arm, a second robotic arm, a third robotic arm, and a drive system. The robotic arms are coaxially arranged, each including an end effector for performing useful work on an object and can continuously rotate a full 360. The drive system commonly controls the three robotic arms and defines a central axis about which the device rotates. The device is capable of high-speed operation in that the robotic arms are sequentially presented to various work environment stations via rotation about the central axis. In one preferred embodiment, each of the robotic arms provides three degrees of freedom. In another preferred embodiment, each robotic arm includes at least a first primary joint and a second primary joint, with the first primary joints being coupled and the second primary joints being coupled. Alternatively, the primary joints are decoupled.

Abstract: A continuous motion robotic device including a first robotic arm, a second robotic arm, a third robotic arm, and a drive system. The robotic arms are coaxially arranged, each including an end effector for performing useful work on an object and can continuously rotate a full 360°. The drive system commonly controls the three robotic arms and defines a central axis about which the device rotates. The device is capable of high-speed operation in that the robotic arms are sequentially presented to various work environment stations via rotation about the central axis. In one preferred embodiment, each of the robotic arms provides three degrees of freedom. In another preferred embodiment, each robotic arm includes at least a first primary joint and a second primary joint, with the first primary joints being coupled and the second primary joints being coupled. Alternatively, the primary joints are decoupled.