Abstract: A strain measuring device (100) is a strain measuring device (100) for measuring strain on an FEP (10), and includes a viscous body (101) that has a lower rigidity than the FEP (10) and covers an uneven surface of the FEP (10), and a strain gauge (102) that is attached to a portion of a surface of the viscous body (101).

Abstract: A U-bolt (1) according to the present invention includes: a pair of shaft parts (111) arranged in a first direction and extending in a second direction orthogonal to the first direction; and one screw part (12) provided on an apex side and one or more screw parts (12) provided on a tip side in each of the pair of shaft parts (111).

Abstract: A learning model construction device (3A) according to the present disclosure includes: a plurality of learning units (354-k) that constructs a respective plurality of learning models by using a respective plurality of loss functions different from each other on the basis of teacher data in which image data indicating a learning image is associated with a true value of a scale of the learning image; a plurality of verification units (355-k) that respectively calculates, for an optimal verification image, a plurality of estimated values; a plurality of correlation calculation units (356-k) that calculates respective correlations of the true value with the plurality of estimated values of the scale; and an optimal learning model selection unit (357) that selects an optimal learning model that is a learning model of which a corresponding one of the correlations is the highest.

Abstract: An audio spot forming system (S) is an audio spot forming system which transmits an alert sound to a vehicle traveling on a road, the audio spot forming system including a first parametric speaker (1) configured to emit a sideband wave, and a second parametric speaker (2) configured to emit a carrier wave, in which the sideband wave and the carrier wave are caused to intersect with each other on the road to form an audio spot.

Abstract: An embodiment lens structure body includes a microlens portion of double-sided asymmetric aspherical shape having a refraction surface on an illuminant side and a refraction surface on an emission side so as to be opposed to the refraction surface, and marker portions formed so as to be joined to both ends of the microlens portion in a direction perpendicular to an optical axis.

Abstract: An image processing device (10) according to the present disclosure includes a feature point detection tracking unit (12) that detects a feature point in a first frame that is a frame at a first time, tracks the feature point from the first time to a second time later than the first time, and calculates a two-dimensional vector indicating a motion of the feature point, a feature point movement amount calculation unit (13) that calculates a movement amount of the feature point based on the calculated two-dimensional vector, and a determination unit (14) that determines whether the calculated movement amount is equal to or greater than a predetermined threshold value, and outputs a second frame as the clipped frame, the second frame being a frame at the second time, when the movement amount is determined to be equal to or greater than the threshold value.

Abstract: A second core includes a first portion, a second portion, and a bending portion. In the first portion, a wave-guiding direction is a first direction parallel to a plane of a first substrate. In the second portion, a wave-guiding direction is a second direction that is at a predetermined angle with respect to the plane of the first substrate. For example, in the second portion, the wave-guiding direction is the second direction that is at substantially 90 degrees with respect to the plane of the first substrate. The bending portion connects the first portion and the second portion. A relative refractive index difference between the second core and a cladding of the second optical waveguide preferably has a value such that the propagation loss in the bending portion is equal to or smaller than 0.1 dB.

Abstract: An optical fiber guide structure includes a guide member uprightly provided on a connection surface of an optical waveguide device and forming a space for housing a tip of an optical fiber when the optical fiber is connected to the optical waveguide device. The guide member is made of a photocurable resin. On the plane perpendicular to the direction in which the optical fiber is inserted into the space, the diameter of an inscribed circle within an inner wall of the guide member configured to form the space is substantially identical to the outer diameter of the optical fiber. The center of the inscribed circle coincides with the center of the core exposed from the connection surface of the optical waveguide device when viewed in the direction in which the optical fiber is inserted.

Abstract: An optical connection structure includes a waveguide substrate; a Si waveguide formed on one surface of the waveguide substrate 100 and having a first end surface; an optical fiber having a second end surface facing the first end surface; a terrace section extending further toward the optical fiber side from an end portion on the optical fiber side of the waveguide substrate; and a support member formed on the terrace section, and including, on a top surface in a view from the terrace section, a recess c configured to support a lens.

Abstract: A region correction device (1) according to the present disclosure includes: an input unit (41) that receives an input of prediction region information indicating a prediction region (PA) indicating an image of a predetermined subject, the prediction region (PA) being detected from a captured image obtained by imaging the predetermined subject; a line segment extraction unit (42) that extracts a line segment on the basis of a contour of the prediction region (PA) indicated by the prediction region information; a correction unit (43) that corrects the prediction region (PA) on the basis of the line segment; and an output unit (44) that outputs corrected prediction region information indicating a corrected prediction region, the corrected prediction region being the prediction region (PA) that has been corrected.

Abstract: An optical fiber guide structure includes a guide member that is configured to be erected on a connection end surface of an optical waveguide device and forms a space for accommodating a leading end portion of an optical fiber to be connected to the optical waveguide device. The guide member is formed of an elastically deformable material, and in a specific region a longitudinal direction of the guide member, and a diameter of an inscribed circle in contact with an inner wall of the guide member in a plane perpendicular to the longitudinal direction is smaller than an outer diameter of the optical fiber.

Abstract: A first optical waveguide, a second optical waveguide, a connection optical waveguide including a resin core that optically connects the first optical waveguide and the second optical waveguide are included. The resin core is covered with cladding. The second optical waveguide has a core with a diameter that is different from a diameter of a core of the first optical waveguide. The resin core is disposed between an end surface of the first optical waveguide and an end surface of the second optical waveguide and optically connects the first optical waveguide and the second optical waveguide. Moreover, the resin core is configured with a cured photo-curable resin.

Abstract: An optical waveguide alignment method includes a step of covering an end portion of an optical fiber, an end portion of a PLC, and a microlens with an adhesive before curing in a state in which at least one microlens is disposed between incidence and emission end faces of end portions of the optical fiber and the PLC, a step of causing light for alignment to be incident on at least one of the optical fiber or the PLC so that light enters a portion covered with the adhesive between the optical fiber and the PLC, and a step of curing the adhesive after the microlens moves onto an optical path between the optical fiber and the PLC due to radiation pressure of light. The optical fiber and the PLC are optically connected via the adhesive and the microlens, and the optical fiber, the PLC, and the microlens are mechanically connected by the adhesive.

Abstract: An optical connector includes a ferrule, an optical fiber, a tube, and a holding component. The ferrule includes a guide hole. The ferrule is formed from either crystallized glass, borosilicate glass, or quartz glass. The optical fiber includes an optical fiber body and a cover that covers the optical fiber body. The tube is disposed on the fiber extension side of one end of the guide hole and houses the optical fiber extending out from the fiber extension side. The tube is formed from either glass or polyimide resin.

Abstract: A U-bolt (10) according to the present disclosure is a U-bolt (10) fastened to a fastened object (2) which includes a body part (11) which includes a pair of shaft parts (111) aligned in a first direction and extending in a second direction orthogonal to the first direction, and a bridge part (112) that connects one ends of each of the pair of shaft parts (111); and a pair of screw parts (12) provided at the other ends of each of the pair of shaft parts (111), in which a part of a surface of the body part (11) constitutes a support surface (11B) that supports a supported object.

Abstract: Provided is an optical connection component that is constituted of a plate-shaped substrate configured to transmit light to be used, and a resin optical waveguide. The resin optical waveguide is constituted of a resin core formed with a resin through which light to be used passes. For example, the resin core is formed with a light-cured resin. The resin optical waveguide uses air surrounding the resin core as a cladding. The resin core has a folded back structure in which the resin core once separates from the surface of the substrate and then returns to the surface of the substrate, and is connected to each of a first input/output end and a second input/output end of the substrate.

Abstract: A storage device (10) that stores an unmanned aerial vehicle (30) includes a main body portion (20) having a magnet or a magnetic body (111, 112) for applying a magnetic force to the unmanned aerial vehicle (30) provided with a magnet (121, 122) on an upper surface.

Abstract: A propeller guard (200) according to the present disclosure is a propeller guard (200) for an unmanned aerial vehicle including a main body part (1) and a propeller part (2) and includes: an encircling part (210) that extends around the propeller part (2) and protects the propeller part (2); and a connection part (220) that connects the main body part (1) and the encircling part (210), wherein the encircling part (210) has a buoyant force for maintaining at least a part of the main body part (1) and the propeller part (2) above water.

Abstract: An optical fiber connection structure according to the present invention includes a fiber support member configured to support an optical fiber to be optically connected to an optical waveguide device, a stopper configured to restrict movement in an axial direction of the optical fiber supported by the fiber support member, and a lens disposed on an optical axis between an end surface of the optical waveguide device and the optical fiber.

Abstract: A deterioration determination device (2) according to the present disclosure includes an input unit (21) that receives an input of image data indicating an image including a figure of an inspection object, a correction unit (232) that generates a corrected image in which the image is corrected to increase an aspect ratio of a region surrounding the figure of at least some inspection object included in the image, a target region extraction unit (252) that extracts, from the corrected image, a target region indicating the figure of the inspection object included in the corrected image, a deterioration region detection unit (253) that detects a deterioration region indicating a figure of a deterioration portion of the inspection object from the corrected image, and a determination unit (254) that determines a deterioration degree of the inspection object based on the target region and the deterioration region.