Abstract: An optical cable according to an embodiment of present disclosure includes following features. Asheath layer contains a liquid crystal polymer forming a liquid crystal phase and an olefin resin serving as a principal component, a content of the liquid crystal polymer is 2 mass% to 30 mass% relative to the sheath layer, a major axis of the liquid crystal phase is oriented in a longitudinal direction of the sheath layer, and in a region from a surface of the sheath layer to a depth of 5% of a thickness of the sheath layer, an average ratio of a length of the liquid crystal phase in a major axis direction to a length of the liquid crystal phase in a minor axis direction is 2.0 or more.

Abstract: An optical fiber cable includes a plurality of optical fibers, a plurality of water-absorbent fibers, and a sheath covering a periphery of the plurality of optical fibers and the plurality of water-absorbent fibers. A ratio of areas of the water-absorbent fibers to an area of an accommodating portion in an inner side of the sheath in a cross section orthogonal to a longitudinal direction of the optical fiber cable is 1% or more and 5% or less, and a maximum value of an area of a gap portion surrounded by the optical fibers in the cross section is 1.0 mm2 or less.

Abstract: An optical fiber cable includes optical fiber ribbons and a sheath covering a periphery of the plurality of optical fiber ribbons. Each of the optical fiber ribbon includes optical fibers, and a connected portion and a non-connected portion are intermittently provided in the longitudinal direction. Each optical fiber includes a glass fiber and a coating portion. A ratio of an inner diameter to an outer diameter of the sheath is 0.75 or more. A ratio of a total area of glasses in an optical fiber ribbon accommodating portion to an area of the optical fiber ribbon accommodating portion is 15% or more and 25% or less, the number of the optical fibers in the optical fiber cable is 3000 or more, and the outer diameter of the sheath is 50 mm or less.

Abstract: A method for manufacturing an intermittently coupled-type optical fiber ribbon includes arranging a plurality of optical fibers in parallel in a direction orthogonal to a longitudinal direction of the plurality of optical fibers, coating all of the plurality of optical fibers with a coupling resin, intermittently inserting a cleaving blade into the coupling resin between some adjacent optical fibers of the plurality of optical fibers to form slits. An outer diameter of each of the optical fibers is 220 ?m or less. A distance between the optical fibers into which the cleaving blade is inserted among the adjacent optical fibers is 10 ?m or more and 100 ?m or less.

Abstract: An optical fiber cable includes a plurality of optical fibers, a tensile strength member set that is disposed along the plurality of optical fibers in a longitudinal direction of the optical fiber cable, and a sheath that covers the plurality of optical fibers from outside and encloses the tensile strength member set in the sheath. In the optical fiber cable, at least four tensile strength member sets are embedded in the sheath in a state where the four tensile strength member sets are apart from each other in a radial direction of the optical fiber cable, the sheath includes a flame-retardant inorganic substance and a release agent, and a distance from one of the four tensile strength member sets to a surface layer of the sheath is 0.5 mm or more.

Abstract: An optical fiber ribbon comprises a plurality of optical fibers arranged in parallel and a connecting resin layer containing a ribbon resin for coating and connecting the plurality of optical fibers, wherein each of the plurality of optical fibers has an outer diameter of 220 ?m or less; and the ribbon resin contains a cured product of urethane (meth)acrylate, and an amount of silicon is 5 ppm or more and 80000 ppm or less and an amount of tin is 5 ppm or more and 30000 ppm or less at the surface of the connecting resin layer.

Abstract: An optical fiber ribbon comprises a plurality of optical fibers arranged in parallel and a connecting resin layer containing a ribbon resin for coating and connecting the plurality of optical fibers, wherein each of the plurality of optical fibers has an outer diameter of 220 µm or less; each of the plurality of optical fibers includes a glass fiber, a primary resin layer, and a colored secondary resin layer; the colored secondary resin layer contains a cured product of a resin composition containing 2,4,6-trimethylbenzoyldiphenylphosphine oxide; and a content of phosphorus in the colored secondary resin layer is 0.03 mass% or more and 0.30 mass% or less, and an amount of a phosphorus-tin complex at the surface of the colored secondary resin layer is 300 ppm or more and 7000 ppm or less.

Abstract: An optical fiber unit includes a plurality of optical fibers, a fibrous filler disposed along the plurality of optical fibers, and a resin film covering the plurality of optical fibers and the fibrous filler from outside. In the optical fiber unit, the resin film has a film thickness smaller than a diameter of the fibrous filler.

Abstract: An optical fiber cable includes: a plurality of optical fibers or a plurality of optical fiber ribbons; a cable sheath inside which a plurality of the optical fibers or a plurality of the optical fiber ribbons are housed; and four or more tensile strength member units which are provided so as to be embedded inside the cable sheath, and in which two or more tensile strength members are paired with each other, in which the four or more tensile strength member units are respectively provided at locations facing each other with a center of the optical fiber cable interposed therebetween in a cross section in a radial direction of the optical fiber cable, and in which a cable outer diameter of the optical fiber cable is 6 mm or more and 16 mm or less.

Abstract: An object detection device (1) includes an object detection unit (2) that detects an object from an image including the object by neural computation using a CNN. The object detection unit (2) includes: a feature amount extraction unit (2a) that extracts a feature amount of the object from the image; an information acquisition unit (2b) that obtains a plurality of object rectangles indicating candidates for the position of the object on the basis of the feature amount and obtains information and a certainty factor of a category of the object for each of the object rectangles; and an object tag calculation unit (2c) that calculates, for each of the object rectangles, an object tag indicating which object in the image the object rectangle is linked to, on the basis of the feature amount.

Abstract: An optical fiber ribbon that includes 16-48 parallel optical fiber core wires and a connecting resin that connects adjacent optical fiber core wires. The outer diameter D of the optical fiber core wires is 160-220 ?m, and when N is the number of optical fiber core wires and S is the bending strain of the optical fiber core wires, S=0.167×N/2(%) or less.

Abstract: An optical fiber cable includes a slot rod that is provided with a plurality of slot grooves in a spiral shape stranded in one direction, a tensile strength member that is provided inside the slot rod to receive tension, a cable sheath that covers an outer side of the slot rod, and a plurality of optical units made by gathering optical fiber ribbons in which a plurality of optical fibers is arranged in parallel. In each of the optical units, the optical fiber ribbons are stranded with each other along a longitudinal direction of the optical fiber cable. Each of the optical units is accommodated in corresponding one of the slot grooves along the longitudinal direction in a state where relative positional relationships between the optical units and the slot grooves are kept and relative positional relationships between the optical units are kept.

Abstract: An optical fiber unit includes: an optical fiber ribbon in which a plurality of optical fibers are arranged in parallel and connected to each other; a colored bundle tape longitudinally wrapped around an optical fiber ribbon bundle in which a plurality of the optical fiber ribbons are stranded together; and a colored bundle yarn spirally wound around the optical fiber ribbon bundle and the bundle tape.

Abstract: An optical fiber unit includes an optical fiber ribbon in which a plurality of optical fibers are arranged in parallel, and a colored bundle tape which is longitudinally wrapped or spirally wrapped around an optical fiber ribbon bundle in which the plurality of optical fiber ribbons are stranded together. One end portion in a width direction of the bundle tape and the other end portion in the width direction of the bundle tape overlap each other and are joined to each other, and the bundle tape covers an entire circumference of the optical fiber ribbon bundle.

Abstract: Provided is an intermittently coupled-type optical fiber ribbon in which, in a state where a plurality of optical fibers are arranged in parallel, coupling portions at which adjacent optical fibers are coupled by a coupling resin and non-coupling portions at which the adjacent optical fibers are not coupled are intermittently provided in a longitudinal direction, the coupling portions and the on-coupling portions being provided between some or all of the plurality of optical fibers, in which at least some of the non-coupling portions include a convex portion of the coupling resin, a tip end of the convex portion having an acute angle in a cross-sectional view in a direction orthogonal to the longitudinal direction.

Abstract: This optical fiber tape core wire (1) has: a plurality of optical fiber core wires (11) that are arranged in parallel to each other; a connection resin (21) that connects the plurality of optical fiber core wires (11); and a bridge part (21a) that is formed of the connection resin (21). The plurality of optical fiber core wires (11) are arranged in a state in which a side surface of an optical fiber core wire (11) is separated from or in contact with a side surface of another adjacent optical fiber core wire (11), the bridge part (21a) is provided between the optical fiber core wires (11) arranged in the separated state, the outer diameter of the optical fiber core wire (11) is 220 ?m or less, and the average distance between the centers of the plurality of optical fiber core wires (11) is 220-280 ?m.

Abstract: A feedback gain and a speed feed-forward gain are adjusted. A method for adjusting control parameters for a control device that performs servo control on a control target includes calculating an upper limit of a feedback gain of a feedback signal within a range in which a predetermined index for the feedback gain satisfies a predetermined target value with a speed feed-forward gain for speed feed-forward control set at a predetermined reference value, setting the feedback gain at an adjustment initial value lower than the upper limit, setting the speed feed-forward gain at the highest value within a settable range, and increasing the feedback gain from the adjustment initial value within a range in which the feedback gain does not exceed the upper limit with at least the speed feed-forward gain set at a predetermined increased value.

Abstract: An optical fiber cable includes a plurality of intermittently connected optical fiber ribbons inside a cable sheath, in which a fibrous filler or an FRP using the fibrous filler is provided on at least one pair of diagonals of the two diagonal directions approximately orthogonal to each other inside the cable sheath. An average linear expansion coefficient of the fibrous filler at ?40° C. to +70° C. is smaller than an average linear expansion coefficient of the cable sheath at ?40° C. to +70° C.

Abstract: This intermittent connection-type optical fiber tape core is configured in a manner such that in a state where a plurality of optical fiber cores are arranged in parallel in a direction perpendicular to the lengthwise direction of said plurality of optical fiber cores, some or all of the intervals between the plurality of optical fiber cores are intermittently provided in the lengthwise direction with connected sections where the intervals between adjacent optical fiber cores are connected and non-connected sections where the intervals between adjacent optical fiber cores are not connected. The outer diameter of each of the plurality of optical fiber cores is 160-220 ?m, inclusive. The catenary amount of the tip end of the intermittent connection-type optical fiber tape core projecting from the held location is 0.1-2 mm, inclusive, in a given state.

Abstract: Provided is a control system which can support a user with respect to the designation of a data group to be collected. The control system (1) includes: first and second controllers (100, 200); a drive device (300) which has a plurality of safety functions for a motor (400); a data tracing module (154) which traces a state value for indicating an operation state of the motor (400); and a support device (500) which receives a setting of the data group to be collected including the state value. The support device (500) includes: a storage (510) which stores collection candidate information in which a data group of collection candidates is associated with a type of a safety function; and an output section (508) which outputs, as the data group to be collected, the data group of collection candidates associated with one selected safety function.