Abstract: The technology is generally directed to a method of mapping fiber networks. The fiber networks may include a plurality of cables, such as fiber optic cables. The cable may be divided into segments. Each cable has a first end segment and a second end segment, each with a known location. When there is a perturbation that causes the cable to vibrate, each segment of the cable may experience an associated strain at a different time. Based on the known location of the perturbation sources, the known location of the end segments, and the relative time that the perturbation is detected at each cable segment, the location of each segment and, therefore, the entire cable may be determined.

Abstract: The invention relates to a method for producing a filter device (1) for filtering a hydrophilic liquid, comprising a flat filter element (10) which is permeable to the liquid, wherein the filter element (10) has a delimited filter region (11) which is coated with a hydrophobic agent. The following steps are carried out: a) providing the flat filter element (10) which has in particular a nonwoven filter web (13) lying between a mesh support layer (14) and a spun-bonded fabric (15), b) producing a compressed annular boundary region (16) for the filter region (11), c) applying the agent onto the filter region (11) of the filter element (10), and d) obtaining the filter device (1).

Abstract: A lens for distribution of light from a light emitter having an axis, the lens including a (1) base forming a substantially rectangular opening to an emitter cavity defined by an inner surface, (2) a main output surface transverse the axis, (3) a reflecting surface positioned to reflect light received from the inner surface toward the main output surface, the reflecting surface including front and back curvatures and a pair of substantially-identical lateral curvatures each adjoining the front and back curvatures. Configuration of the lateral curvatures differs from configurations of the front and back curvatures, which differ from one another.

Abstract: In an embodiment, a polycrystalline diamond compact (“PDC”) includes a substrate and a polycrystalline diamond (“PCD”) table bonded to the substrate. The PCD table includes an upper surface. The PCD table includes a first PCD region including bonded-together diamond grains and exhibits a first diamond density. At least a portion of the first PCD region extending inwardly from the working surface is substantially free of metal-solvent catalyst. The PCD table includes an intermediate second PCD region bonded to the substrate, which is disposed between the first PCD region and the substrate. The second PCD region includes bonded-together diamond grains defining interstitial regions, with at least a portion of the interstitial regions including metal-solvent catalyst disposed therein. The second PCD region exhibits a second diamond density that is greater than that of the first diamond density of the first PCD region.

Abstract: Embodiments of the invention relate to polycrystalline diamond compacts including a substrate having a convexly-curved interfacial surface bonded to a polycrystalline diamond table. In an embodiment, a polycrystalline diamond compact includes a substrate including at least one side surface and a convexly-curved interfacial surface that may, in some embodiments, extend inwardly directly from the at least one side surface to form at least one peripheral edge therebetween. The polycrystalline diamond compact further includes a polycrystalline diamond table bonded to the convexly-curved interfacial surface of the substrate.

Abstract: An LED lensing arrangement for lighting fixtures includes (1) a rigid light-transmissive outer structure having an outwardly-facing light-exit surface and an outer-structure light-input surface, (2) an optically-clear molded polymeric inner structure having a light-entrance surface and a light-output surface which is adhered to the outer-structure light-input surface, the inner structure being of a material which is pourable upon molding, one example being a liquid silicone rubber (LSR) material, and (3) at least one LED light source secured with respect to and optically coupled to the inner-structure light-entrance surface.

Abstract: A lighting fixture includes a front end-portion having an edge defining a light opening and a back end-portion spaced from the opening which has a centerline. At least one LED emitter on the mounting board disposed at the back end-portion for directing light toward the opening, the emitter(s) being off-centerline in a first lateral direction. A lens for the emitter(s), the lens being configured for distribution of light from the emitter(s) primarily in a second lateral direction which is opposite the first lateral direction such that the light passes through the light opening at a portion of the edge that is off-centerline in the second lateral direction, thereby to widen the illumination angle from the fixture.

Abstract: A lens for wide lateral-angle distribution of light from an LED light source on a board and defining an axis. The lens includes a board-adjacent base spaced from and around the axis, an inner light-receiving surface, an intermediate surface and an outer output surface configured for refracting light received from the inner and intermediate surfaces. The base forms an opening into a light-receiving cavity defined by the inner surface which includes (a) substantially planar front and back surface portions each extending from the opening and (b) an end surface portion spanning the cavity between the front and back surfaces and comprising front and back segments extending inwardly from the front and back surface portions, respectively, and each angled with respect to the other. The intermediate surface is positioned and configured for reflecting light received from the inner surface toward the outer output surface.

Abstract: A lens for a primarily-elongate distribution of light from a light emitter having an axis with a lens base being substantially normal to the axis. The lens includes a substantially-rectangular emitter opening to a cavity defined by a refracting inner surface. The lens further includes a refracting main output surface transverse the axis and a reflecting surface extending from the lens base away from the axis outwardly of and around the inner surface. The reflecting surface receives substantially all forward and rearward light and a portion of lateral light refracted by the inner surface for total internal reflection (TIR) toward the main output surface which refracts such light into the elongate distribution. The lens is configured such that the other portion of the lateral light exits the lens away from the axis for wide-angle distribution along the elongate distribution.

Abstract: Embodiments of the invention relate to polycrystalline diamond compacts (“PDCs”) including a domed polycrystalline diamond (“PCD”) table that exhibit improved wear resistance and/or thermal stability. In an embodiment, a PDC includes a substrate having an interfacial surface, and a domed PCD table bonded to the interfacial surface of the substrate. The domed PCD table includes an exterior, convex generally cylindrical peripheral surface extending away from the interfacial surface of the substrate. The domed PCD table further includes a domed portion defining an upper, convex generally spherical surface, and an optional chamfer extending between the exterior, convex generally cylindrical peripheral surface and the upper, convex generally spherical surface.

Abstract: Embodiments of the invention relate to polycrystalline diamond compacts including a substrate having a convexly-curved interfacial surface bonded to a polycrystalline diamond table. In an embodiment, a polycrystalline diamond compact includes a substrate including at least one side surface and a convexly-curved interfacial surface that may, in some embodiments, extend inwardly directly from the at least one side surface to form at least one peripheral edge therebetween. The polycrystalline diamond compact further includes a polycrystalline diamond table bonded to the convexly-curved interfacial surface of the substrate.

Abstract: An LED lensing arrangement for lighting fixtures includes (1) a rigid light-transmissive outer structure having an outwardly-facing light-exit surface and an outer-structure light-input surface, (2) an optically-clear molded polymeric inner structure having a light-entrance surface and a light-output surface which is adhered to the outer-structure light-input surface, the inner structure being of a material which is pourable upon molding, one example being a liquid silicone rubber (LSR) material, and (3) at least one LED light source secured with respect to and optically coupled to the inner-structure light-entrance surface.

Abstract: The present invention relates generally to apparatuses to facilitate the playing of lottery games. More specifically, the present invention relates to apparatuses for marking or puncturing lottery play slips.

Abstract: In an embodiment, a polycrystalline diamond compact (“PDC”) includes a substrate and a polycrystalline diamond (“PCD”) table bonded to the substrate. The PCD table includes an upper surface. The PCD table includes a first PCD region including bonded-together diamond grains and exhibits a first diamond density. At least a portion of the first PCD region extending inwardly from the working surface is substantially free of metal-solvent catalyst. The PCD table includes an intermediate second PCD region bonded to the substrate, which is disposed between the first PCD region and the substrate. The second PCD region includes bonded-together diamond grains defining interstitial regions, with at least a portion of the interstitial regions including metal-solvent catalyst disposed therein. The second PCD region exhibits a second diamond density that is greater than that of the first diamond density of the first PCD region.

Abstract: A lens for distribution of light from a light emitter having an axis, the lens including a (1) base forming a substantially rectangular opening to an emitter cavity defined by an inner surface, (2) a main output surface transverse the axis, (3) a reflecting surface is positioned to reflect light received from the inner surface toward the main output surface, the reflecting surface including front and back curvatures and a pair of substantially-identical lateral curvatures each adjoining the front and back curvatures. Configuration of the lateral curvatures differs from configurations of the front and back curvatures, which differ from one another.

Abstract: A lens for a primarily-elongate distribution of light from a light emitter having an axis with a lens base being substantially normal to the axis. The lens includes a substantially-rectangular emitter opening to a cavity defined by a refracting inner surface. The lens further includes a refracting main output surface transverse the axis and a reflecting surface extending from the lens base away from the axis outwardly of and around the inner surface. The reflecting surface receives substantially all forward and rearward light and a portion of lateral light refracted by the inner surface for total internal reflection (TIR) toward the main output surface which refracts such light into the elongate distribution. The lens is configured such that the other portion of the lateral light exits the lens away from the axis for wide-angle distribution along the elongate distribution.

Abstract: A recessed lighting fixture for mounting into a structure facing an illumination area. The fixture includes a support member configured for mounting into the structure and including a front end-portion having an edge defining a light opening and a back end-portion recessed from the opening. The support member and opening have a centerline. A mounting board is disposed at the back end-portion and defines with the support member an open space extending to the opening. An LED arrangement includes (a) LED emitter(s) on the mounting board for directing light toward the opening, each emitter defining an emitter axis, and (b) a lens for each emitter at least one of which is off-centerline in a first lateral direction.